Method of shielded arc atmosphere preparation

FIELD: technological processes.

SUBSTANCE: inventions may be used for preparation of shielded arc atmospheres, which contain nitrogen with hydrogen or nitrogen with hydrogen and carbon oxide that are used in glass, metallurgical, machine building industries. The first variant of shielded arc atmosphere preparation includes conversion of hydrocarbon gas, steam conversion of carbon oxide, cooling of conversion products with separation of condensed moisture and final purification of gas mixture from carbon dioxide and moisture at adsorption plants. Conversion of hydrocarbon gas is carried out in three stages: the first stage is carried out in free volume of device for oxidation of hydrocarbon gas with air; the second stage is carried out in volume of device that is filled with granular fire-resistant material for performance of steam and carbon-dioxide conversion of remaining hydrocarbon gas; the third stage is carried out in volume of device, which is filled with heat-resistant metal rings for saturation of gas flow with moisture and performance of steam conversion of carbon oxide. The second variant of shielded arc atmosphere includes conversion of hydrocarbon gas, steam conversion of carbon oxide, cooling of conversion products with separation of condensed moisture and final purification of gas mixture from carbon dioxide and moisture at adsorption plants. At that catalytic conversion of carbon oxide is regulated by amount of water vapors condensate, which is supplied into volume of device that is filled with heat-resistant metal rings for saturation of gas flow with moisture. The third variant of shielded arc atmosphere includes conversion of hydrocarbon gas, steam conversion of carbon oxide, cooling of conversion products with separation of condensed moisture and final purification of gas mixture from carbon dioxide and moisture at adsorption plants. At that part of hydrocarbon gas conversion products is sent to cooling device, bypassing device of steam conversion of carbon oxide, and further to adsorption purification unit in order to maintain preset content of carbon oxide in shielded arc atmosphere.

EFFECT: inventions allow to intensify the process and to prepare shielded arc atmosphere of triple composition.

4 cl

 

1. The technical field

The present invention relates to the production of process gases and can be used to produce gas mixtures containing nitrogen with hydrogen or nitrogen with hydrogen and carbon monoxide used as a protective atmosphere in the glass, metallurgy, machine building and other industries.

2. The level of technology

Known methods for producing gas protection atmospheres by conversion of hydrocarbon gases in the granular layer of refractory material, followed by purification of the reaction products from carbon oxides and water vapor, as well as installations for their production (patents of the Russian Federation No. 1353725, MKI SU 3/24; No. 2199485, MKI SW 3/36; No. 2178765, MKI SW 18/12, SU 3/24; No. 2181102, IPC7SU 3/24; A.S. SU # 1665574 MCI SW 01 D 52/02; A.S. SU # 1380764 MCI SW 01 D 53/02; A.S. SU # 1604457 A1 01J 7/00).

The closest analogues of the present invention in essence and achieved result is: a method of obtaining a controlled atmosphere by RF patent No. 1353725, MKI SU 3/24;

installation for the preparation of a nitrogen-hydrogen controlled atmosphere by RF patent No. 2181102, IPC7SU 3/24.

According to patent No. 1353725 way to obtain nitrogen-hydrogen mixtures involves the conversion of hydrocarbon gases in the granular layer of refractory material and subsequent purification of the reaction products from carbon oxides and water vapor. To the version carried out at a temperature of 1400 1700...° With two layers of granular refractory material with a specific surface area of 250...350 m2/m3and 50...150 m2/m3in the amount of 80...60% and 20...40%, respectively, and a material with a greater specific surface fall asleep in the frontal part of the conversion apparatus. Prepared gas mixture is routed directly to the layer of granular refractory material.

The disadvantages of this method are:

drag a layer of granular refractory materials in the conversion apparatus is continuously cooled by the incoming gas-air mixture. As a consequence, the process of conversion in the front layer is not, because it requires high temperatures. The conversion process begins further, in the layer of granular refractory materials. Therefore, you lose the useful volume of the apparatus and, in addition, the gas flows in the cross section and the height of the reactor is uneven, respectively, are unevenly distributed temperature and concentration of gas components. Therefore, the reaction rate of the conversion of natural gas flow also unevenly distributed over the cross section of the reactor near the axis, where the higher temperature, the reaction conversion are more intense at the periphery is less intense. Therefore, to complete the conversion in the gas stream moving along the periphery of the reactor, more time is required than for gas, DV is gumagawa axis. Necessary to adjust the process, focusing on the slower reactions taking place on the periphery of the reactor. The result is reduced performance conversion installation.

Installation according to the patent of Russian Federation №2181102 serving the lining of the upper part of the conversion apparatus under the hood to perform on the top layer of granular refractories, also has significant drawbacks:

first, the increase in cooling the upper part of the apparatus of the conversion of hydrocarbons leads to a decrease of the temperature conversion products, and consequently a decrease in the rate of conversion of hydrocarbons, secondly, the lining is not on the cover of the conversion apparatus, and on the front layer of granular refractory materials. Consequently, the granular layer is constantly under the pressure of the lining, compacted, creating additional resistance to flow, resulting in reduced performance of the conversion.

In addition, the disadvantage of these methods is that they do not provide solutions for obtaining protective atmosphere ternary composition of the nitrogen-hydrogen-carbon oxide and productivity at intermediate stages of the process.

The task of the invention is: the intensification of the process of conversion of the hydrocarbon gas in the front layer of granular refractory materials, alignment, temperature and gas flows at pop the river section and the height of the reactor in the apparatus of the conversion of hydrocarbon gas, regulation of the catalytic conversion of carbon monoxide, as well as getting gas protection of the atmosphere triple composition.

3. Disclosure of the invention.

The proposed method of conversion of the hydrocarbon gas is carried out in three stages. The first stage is carried out in the free volume of the apparatus for the oxidation of hydrocarbon gas with air, the second stage is carried out in a volume of the apparatus, filled with granular refractory material, for the flow of steam and carbon dioxide conversion of the remaining hydrocarbon gas, the third stage is carried out in a volume of the apparatus is filled with a heat-resistant metal rings, which serves the condensation of water vapor to saturate the gas stream moisture and the flow of steam conversion of carbon monoxide. The ratio of void volume to the volume filled with refractory material, and the volume filled with a heat-resistant metal rings, is (5-15):(70 to 90):(5-15). The ratio of the volume contributes the most intense and uniform reactions of the first and second stages.

At the first stage of the prepared gas mixture containing a hydrocarbon gas and compressed air, served in the free volume of the conversion apparatus, where they perform high-speed air reforming reaction of the hydrocarbon gas with a large evolution of heat and formation of deoxy is as carbon and water vapor according to the equation

CH4+2O2=CO2+2H2O.

The temperature of the frontal layer of granular refractory reaches 1600-1700°C.

In the second stage, the gas stream containing the products of the reactions of the first stage, then goes into the volume of the apparatus, filled with granular refractory material, for the implementation of steam and carbon dioxide conversion of the remaining hydrocarbon gas according to the equation

CH4+H2O=CO+3H2,

CH4+CO2=2SD+2H2.

As the reaction conversion of endothermic, there is a decrease in the temperature of the gas stream to 600-800°C.

At the third stage, the gas flow is directed into the volume of the apparatus is filled with the metal rings. At the same time in this volume serves condensation of water vapor to saturate the gas stream moisture and the flow of steam conversion of carbon monoxide according to the equation

CO+H2O=CO2+H2.

The flow of condensate, in addition, reduces the temperature of the gas stream to a temperature of 180-220°required for the final catalytic purification of the gas mixture from the oxide wereda in the steam reforming apparatus.

Thus, the gas-air mixture fed into the free volume of the air conversion, where they perform an air conversion of hydrocarbon gas, accompanied by a large release of heat. Temperature is in the free volume reaches 1600-1700° C and the reaction products are evenly distributed in the cross section of the device.

The presence of free blank volume allows you to more fully realize aerial conversion of hydrocarbon gas to create a uniform concentration of the conversion products in the gas mixture and forth to evenly fill the space between the refractory aggregate and evenly distribute the gas flow over the cross section of the device.

Further, the products of the reactions of the first stage of the process is directed into the volume of the apparatus, filled with granular refractory material. They come in a layer of granular material is not a narrow stream, as in the above analogy, and wide uniform flow throughout the cross section of the device and have a uniform distribution of temperatures and concentrations in cross-section. This ensures uniform advancement of the gas mixture by volume of the apparatus, filled with granular refractory material, and even chemical reactions. As the gas moves through the layer of granular material evenly and reactions proceed uniformly, the complete conversion of gas moving along the periphery of the apparatus, and for gas moving along the axis of the apparatus, occurs approximately simultaneously, thereby increasing the performance of your installation.

In addition, the since in our proposed variant of granular refractory material does not fill the entire volume of the apparatus, but only part of it, this provides a reduction of the total resistance to advancement of the gas stream in the reactor and also improves the performance of the installation.

After completing the second phase of conversion of the hydrocarbon gas of the gas mixture is sent into the volume of the apparatus, filled with rings of heat-resistant steel, where they begin the process of steam conversion of carbon monoxide, feeding in this volume condensation of water vapor. Then the gas mixture is fed to the catalytic conversion apparatus, where complete the cleaning gas mixture of carbon monoxide. The intensity of the flow catalytic conversion of carbon monoxide regulate the quantity of condensation of water vapor in the volume of the apparatus is filled with a heat-resistant metal rings, thereby intensificar the process of catalytic conversion stages saturate the gas stream moisture. In addition, when applying the condensation of water vapor in the volume of the apparatus is filled with a heat-resistant metal rings, there is a decrease in the temperature of the gas stream with 600-800°With up to 180-220°S, which is the operating temperature of the catalyst, which increases productivity of the catalytic conversion device.

The gas mixture after the catalytic conversion is cooled with the Department of condensed moisture to a residual concentration of 10 g/m3. Next, gas, see the camping serves to block the adsorption purification from carbon dioxide and moisture.

If the consumer requires protective atmosphere ternary composition: nitrogen-hydrogen-carbon monoxide, given the content of carbon monoxide is supported by the transmission part of the conversion products, bypassing the apparatus of steam conversion of carbon monoxide in the cooling apparatus and then to block adsorption purification.

Thus, the set of essential features, including a 3-stage conversion of the hydrocarbon gas, the catalytic conversion of carbon monoxide, adjustable prior to submitting the condensation of water vapor, the transmission part of the conversion products, bypassing the stage of final purification from carbon dioxide, leads to the achievement of the expected technical result is increased productivity of the installation and getting gas protection of the atmosphere triple composition.

5. The implementation of the invention.

The proposed method produced a protective atmosphere and used for the production of float glass line APX-4000.

Below are examples produce a protective atmosphere using the present invention.

Example 1.

Petroleum gas and compressed air are fed into the mixer from which the homogeneous mixture through a conical diffuser was sent to the free volume of the conversion apparatus, comprising 8% of the total volume of the apparatus, where he implemented the first phase of the conversion with the formation of carbon dioxide is kind and moisture. The temperature in the free volume of the apparatus was reached 1650°C.

Next, the gas mixture was applied in a layer of granular refractory material, occupying 80% of the volume of the apparatus, where he carried out the second stage of the conversion.

Then the gas mixture is directed into the volume of the apparatus, filled with heat-resistant rings, which accounted for 12% of the volume of the entire apparatus. At the same time this volume was produced by the saturation of the gas mixture with moisture.

Then saturated with moisture and cooled to a temperature of 200°With the gas mixture fed into the steam reforming apparatus, filled with a catalyst.

The gas mixture after steam reforming cooled successively in the air cooler from 200 to 60°With, in the first water refrigerator from 60 to 28°With second refrigerator water from 28 to 10°C. After each cooling the gas mixture was removed condensation of water vapor.

Cooled to 10°With the gas mixture was applied to block the adsorption purification from carbon dioxide and moisture. As adsorbent was used zeolite.

The obtained protective atmosphere had the composition: H2- 6 vol.%, N2- 93,9968 about.%, with residual impurities FROM 0,002%, CO2- 0,001%vol., H2O - is 0.0002%vol.

Example 2.

Petroleum gas and compressed air are fed into the mixer from which the homogeneous mixture through a conical diffuser was sent to the apparatus controller is used for the conversion of hydrocarbon gas, which is technologically and structurally can be solved differently, and in this case performed in accordance with claim 1 of the formula of the present invention having a free volume, the volume filled with the refractory aggregate and the volume filled with metal rings. The temperature in the free volume of the apparatus was reached 1650°C.

Next, the gas mixture was applied in a layer of granular refractory material, where he carried out the second stage of the conversion.

Then the gas mixture is directed into the volume of the apparatus is filled with a heat-resistant metal rings. At the same time in this volume was submitted by the condensation of water vapor to saturate the gas mixture with moisture and the passage of steam conversion of carbon monoxide and reduce the temperature of the gas stream. At this stage, was carried out by regulating the amount of condensate water vapor that changes the content of carbon monoxide in the gas mixture. This allowed to influence subsequent catalytic conversion of carbon monoxide. Increase the amount of condensation of water vapor from 200 to 400 liters per hour reduced the content of carbon monoxide in the gas mixture, thereby reducing the load on the catalytic purification device during final cleaning and to get a lower residual concentration of carbon monoxide in the mixture.

The gas mixture after steam reforming ohlord who do consistently: air cooler from 180 to 60° With in ground water refrigerator from 60 to 28°With second refrigerator water from 28 to 10°C. After each cooling the gas mixture was removed condensation of water vapor.

Cooled to 10°With the gas mixture was applied to block the adsorption purification from carbon dioxide and moisture. As adsorbent was used zeolite.

The obtained protective atmosphere had the composition: H2- 6 vol.%, N2- 93,9978 about.%, with residual impurities FROM about 0.001 vol.%, CO2of 0.001 vol.%, H2O - is 0.0002%vol.

Example 3.

To obtain gas protection of the atmosphere ternary composition of the free volume of the hydrocarbon gas and compressed air are fed into the mixer from which the homogeneous mixture through a conical diffuser was sent to the office of air conversion, where he carried out an air conversion of hydrocarbon gas.

Steam reforming was carried out in a volume of the apparatus is filled with the metal rings, which was filed by the condensation of water vapor.

Next part of the conversion products in the amount of 100 CBM/h, bypassing the apparatus of steam conversion of carbon monoxide, cooled and applied to the adsorption unit cleanup.

The obtained gas protection atmosphere had the composition: H2- 2 vol.%, N2- 95,9988 about.%, CO2vol.%, with residual impurities CO2- 0,001%vol., H2O - is 0.0002%vol.

1. The method of obtaining gas protection of the atmosphere, including the conversion of coal is dorodnova gas, steam conversion of carbon monoxide, cooling the products of conversion from the Department of condensed moisture and final cleaning of the gas mixture of carbon dioxide and moisture on the adsorption units, characterized in that the conversion of the hydrocarbon gas is carried out in three stages: the first stage is carried out in the free volume of the apparatus for the oxidation of hydrocarbon gas with air; the second stage is carried out in a volume of the apparatus, filled with granular refractory material to the flow of steam and carbon dioxide conversion of the remaining hydrocarbon gas; the third stage is carried out in a volume of the apparatus is filled with a heat-resistant metal rings for saturating the gas stream with moisture and the flow of steam conversion of carbon monoxide.

2. The method according to claim 1, characterized in that the ratio of void volume to the volume filled with granular refractory material, and the volume filled with a heat-resistant metal rings, is (5-15):(70 to 90):(5-15).

3. The method of obtaining gas protection of the atmosphere, including the conversion of hydrocarbon gas, steam conversion of carbon monoxide, cooling the products of conversion from the Department of condensed moisture and final cleaning of the gas mixture of carbon dioxide and moisture on the adsorption units, characterized in that the catalytic conversion of carbon monoxide is reguliruyut the amount of condensation of water vapor, served in the volume of the apparatus is filled with a heat-resistant metal rings for saturating the gas stream with moisture.

4. The method of obtaining gas protection of the atmosphere, including the conversion of hydrocarbon gas, steam conversion of carbon monoxide, cooling the products of conversion from the Department of condensed moisture and final cleaning of the gas mixture of carbon dioxide and moisture on the adsorption units, characterized in that part of the conversion products of the hydrocarbon gas flow bypassing the apparatus of steam conversion of carbon monoxide in the cooling apparatus and then to block adsorption purification to maintain gas protection in the atmosphere given the content of carbon monoxide.



 

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18 cl, 5 dwg, 3 tbl

FIELD: chemistry.

SUBSTANCE: way of syngas cleaning includes: introduction of the flow of initial syngas, into the feed zone of the distillation column, flow expansion of the liquid remainder from the distillation column by means of a dilator of liquids with the extraction of work for forming the flow of the cooled waste liquid, the rectification of vapour from the feed zone for forming the upper flow of vapour with the decreased content of nitrogen and inert gases, cooling of the upper vapour flow in the indirect heat exchange with the flow of the cooled waste liquid for forming the of partially condensed upper flow and flow of the partially heated waste liquid, separation of the partially condensed upper flow into the flow of condensate and the flow of the purified vapour of syngas with the decreased content of nitrogen and inert gases and the irrigation of distillation column by the flow of condensate. By the first variant the method of production of ammonia includes reforming of hydrocarbon for forming syngas, cooling the flow of initial syngas, expansion of the cooled flow of initial syngas, introduction of the extended flow of initial syngas in the feed zone in the distillation column, flow expansion of liquid remainders from the distillation column with the aid of the dilator of liquid forming the flow of cooled waste liquid, according to the first variant the method of the production of ammonia includes reforming of hydrocarbon for forming syngas, cooling of a stream initial syngas, expansion of the cooled stream initial syngas, introduction of the extended flow of initial syngas in the feed zone in the distillation column, flow expansion of liquid remainders from the distillation column with the aid of the dilator of liquid for forming the flow of the cooled waste liquid, the rectification of vapour from the feed zone in the distillation column for forming the upper flow of vapour with the decreased content of nitrogen and inert gases, cooling the upper flow of vapour in the indirect heat exchange with the flow of the cooled waste liquid for forming of partially condensed upper flow and flow of the partially heated waste liquid, the separation of the partially condensed upper flow into the flow of condensate and the flow of purified vapour of syngas with the decreased content of nitrogen and inert gases, the irrigation the distillation column by the flow of condensate, heating the flow of the purified vapour of syngas in the heat exchanger with the cross-section flow, heating the flow of partially heated waste liquid in the heat exchanger with a cross-section flow, the supply of the flow of the purified vapour of syngas from the heat exchanger with the cross-section flow into the outline of synthesis of ammonia. According to the second variant the method of the production of ammonia includes the reforming hydrocarbon with excess air for forming the flow of initial syngas, removal of nitrogen and inert gases from the flow of the syngas by distillation, thus provide cooling with the aid of the expansion of the liquid by means of the dilator-generator, and the upper flow partially condense the waste flow, cooled by means of expansion of the liquid remainder from the distillation column, and the supply of syngas with the decreased content of nitrogen and inert gases from distillation into the contour of the synthesis of ammonia at which the liquid remainders expand by means of the dilator of liquid with the extraction of work.

EFFECT: invention makes it possible to improve industrial and economic characteristics.

18 cl, 5 dwg, 3 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to dehydrogenation or reforming of alcohols, in particular to a method of dehydrogenation of the primary alcohol, such as methanol or ethanol, for obtaining hydrogen, in particular for use in a fuel element with the purpose of obtaining electrical energy. In the method of dehydrogenation a catalyst containing copper is used, which includes a metallic carrier. To solve the given challenge the method includes bringing to contact of the initial raw mixture of the gases containing alcohol, with the catalyst of reforming in order to obtain a mixture of products of reforming, containing hydrogen, and the catalyst for reforming the contains a metallic spongy carrier and a coating on copper, at least, partially covering surface of the given metal spongy carrier where the given metal spongy carrier is obtained by means of the method including the leaching of aluminium from an alloy, containing aluminium and the main metal.

EFFECT: increased activity in the gas-phase reforming of primary spirits and increased stability.

129 cl, 13 tbl, 13 ex

FIELD: chemistry.

SUBSTANCE: invention relates to dehydrogenation or reforming of alcohols, in particular to a method of dehydrogenation of the primary alcohol, such as methanol or ethanol, for obtaining hydrogen, in particular for use in a fuel element with the purpose of obtaining electrical energy. In the method of dehydrogenation a catalyst containing copper is used, which includes a metallic carrier. To solve the given challenge the method includes bringing to contact of the initial raw mixture of the gases containing alcohol, with the catalyst of reforming in order to obtain a mixture of products of reforming, containing hydrogen, and the catalyst for reforming the contains a metallic spongy carrier and a coating on copper, at least, partially covering surface of the given metal spongy carrier where the given metal spongy carrier is obtained by means of the method including the leaching of aluminium from an alloy, containing aluminium and the main metal.

EFFECT: increased activity in the gas-phase reforming of primary spirits and increased stability.

129 cl, 13 tbl, 13 ex

FIELD: chemistry.

SUBSTANCE: invention pertains to the method of obtaining porous substances on a substrate for catalytic applications, to the method of obtaining porous catalysts for decomposition of N2O and their use in decomposing N2O, oxidising ammonia and reforming methane with water vapour. Description is given of the method of obtaining porous substances on a substrate for catalytic applications, in which one or more soluble precursor(s) metal of the active phase is added to a suspension, consisting of an insoluble phase of a substrate in water or an organic solvent. The suspension undergoes wet grinding so as to reduce the size of the particles of the substrate phase to less than 50 mcm. The additive is added, which promotes treatment before or after grinding. A pore-forming substance is added and the suspension, viscosity of which is maintained at 100-5000 cP, undergoes spray drying, is pressed and undergoes thermal treatment so as to remove the pore-forming substance, and is then baked. Description is also given of the method of obtaining porous catalysts on a substrate for decomposing N2O, in which a soluble cobalt precursor is added to a suspension of cerium oxide and an additive, promoting treatment, in water. The suspension is ground to particle size of less than 10 mcm. A pore-forming substance, viscosity of which is regulated to approximately 1000 cP, is added before the suspension undergoes spray drying with subsequent pressing. The pore-forming substance is removed and the product is baked. Description is given of the use of the substances obtained above as catalysts for decomposition of N2O, oxidation of ammonia and reforming of methane with water vapour.

EFFECT: obtaining catalysts with homogenous distribution of active phases and uniform and regulated porosity for optimisation of characteristics in catalytic applications.

FIELD: chemistry.

SUBSTANCE: converter includes housing and devices for input oxygen enriched air, fed of vapour-hydrocarbon mix and bleeding of converted gas. The housing is provided with inner fikking designed as two cylindrical tubes installed one inside the other and forming with the converter housing two radial clearances: the outer clearance for input vapour-hydrocarbon mix and inner one for output of converted gas. At that the packing made of channeled plates is provided for inner fikking, this packing forms the channels of square section; the upper part (1/20-1/25) of channels is provided with perforation track, the middle part (1/5-1/6) of channels height located lower than perforation track is filled with catalyst used for primary and secondary hydrocarbon conversions; and the lowest part (1/6-1/8) of channels height is filled with catalyst used for preliminary hydrocarbon conversion. The device for input oxygen enriched air is positioned in the upper part of channels. The method is implemented in converter. Hydrocarbon material heating and converted gas cooling are carried out by the way of its passing through heat exchanger and mixing of hydrocarbon material with water vapour, then vapour-hydrocarbon mix is fed downstream through outer radial clearance and further it is delivered up the channels through catalyst bed for implementing of preliminary and primary conversions. Then through perforation track it is fed down the channels for converted gas oxidizing and secondary vapour conversion with subsequent converted gas upflow takeoff through inner radial clearance.

EFFECT: increasing of hydrocarbon material conversion and reduction of probability of free carbon formation.

2 cl, 3 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to two methods (two variants) of reforming process using oxidizing gas at temperature 980-1000°C. The recirculation of the flow part outgoing from the autothermic reformer to the flowrate vapour-hydrocarbon is described at that the said recirculation is implemented throught the instrumentality of thermocompressor ejector using heated beforehand supplied mix as operative fluid. For the optimization of general configuration the mole ratio of recirculating synthesis gas and operative fluid was chosen in the range 0.2-1.0. In order to prevent the carbon black formation in the reforming process recirculated hydrogen and vapour are fed to the input flow and the temperature of feeding is increased. Since there is a certain pressure drop between initial mixture of vapour and natural gas and the mix fed to reformer it is necessary to increase the pressure of initial mixture but it is compensated with the lower pressure drop in the heater and other equipment laid out upstream and downstream because of decreasing of vapour capacity.

EFFECT: reforming process is carried out without carbon black formation.

27 cl, 2 dwg, 1 tbl

FIELD: chemistry; processing of hydrocarbon material to synthesis gas.

SUBSTANCE: porous ceramic catalytical module represents the product of exothermic finely dispersed nickel-aluminium mixture exposed to vibration compaction and to sintering. The said product contains: nickel 55.93-96.31 Wt%; aluminium 3.69-44.07 Wt%. Porous ceramic catalytical module may contain up to 20 Wt% (based on the module weight) of titanium carbide as well as catalytic coating including following groups: La and MgO, or Ce and MgO, or La, Ce and MgO, or ZrO2, Y2O3 and MgO, or Pt and MgO, or W2O5 and MgO in quantity 0,002-6 Wt% based on the module weight synthesis gas is produced by conversion of methane and carbon dioxide mixture on porous ceramic catalytical module in filtration mode The process conditions are as follows: temperature 450-700°C, pressure 1-10 atm, rate of CH4-CO2 mixture delivery to catalytical module 500-5000 l/dm3*hr.

EFFECT: inventions permit to carry out the process at lower temperatures.

5 cl, 37 dwg

FIELD: hydrogen production processes.

SUBSTANCE: invention relates to catalysts for hydrolysis of hydride compounds to produce pure hydrogen for being supplied to power installations, including fuel cells. Invention provides catalyst for production of hydrogen from aqueous or water-alkali solutions of hydride compounds containing platinum group metal deposited on complex lithium-cobalt oxide and, additionally, modifying agent selected from series: titanium dioxide, carbon material, oxide of metal belonging to aluminum, magnesium, titanium, silicon, and vanadium subgroups. According to second variant, catalyst contains no platinum group metal. Described are also catalyst preparation method (variants) and hydrogen generation process, which is conducted at temperature no higher than 60°C both in continuous and in periodic mode. As hydrogen source, sodium borohydride, potassium borohydride, and ammine-borane can be used.

EFFECT: increased catalyst activity at environmental temperatures (from -20 to 60°C), prolonged time of stable operation of catalytic system, and reduced or suppressed platinum metals in composition of catalyst.

14 cl, 1 tbl, 20 ex

FIELD: method and torch for producing synthesis gas at decomposition of liquid hydrocarbons such as oil and natural gas at elevated temperatures without usage of catalyst by CO and hydrogen.

SUBSTANCE: method is realized by partial oxidation of liquid and solid combustible materials at presence of oxygen and oxygen containing gases. Fuel, oxygen-containing gas and atomizing fluid are fed to torch separately. Atomizing fluid is expanded just in front of inlet opening for fuel by means of one or several nozzles providing speed of atomizing fluid in range 20 - 300 m/s. Relation of diameter of outlet opening of nozzle for liquid fuel to diameter of opening of nozzle for atomizing fluid is in range 1/1.1 - 1/5.

EFFECT: possibility for simplifying process.

2 dwg, 2 ex

FIELD: medicine, life saving equipment.

SUBSTANCE: method of volume firefighting and related equipment enables to increase efficiency of firefighting procedures due to decreased temperature and losses of fire-control aerosol by introduction thereof with pyrotechnic composition resulted from combustion, thus charges are inflamed from lower non-reserved end face, and produced aerosol is let through channels between charges and through cellular plaster filter. Thereafter aerosol is exhausted to protected volume through clearances of outlet cone. Firefighting unit consists of working body, injector assembly and two fire-resistant grids, and also contains block cellular plaster filter for aerosol cooling, mounted between fire-resistant grids, and outlet cone for uniform distribution of produced aerosol.

EFFECT: provided increase of firefighting efficiency.

2 cl, 3 dwg

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