Apparatus for producing sulfur from gases
(57) Abstract:The invention relates to the production of sulfur from gases. The known device for sulfur includes a housing, a surface for condensation and crystallization, the longitudinal walls forming an internal reservoir, equidistant offset in the direction of rotation of the ring of the drum relative to the partitions forming the external reservoir, and the size of the overlap is equal to the distance between the radial walls around the circumference of the inner cylinder, with surface condensation, crystallization is performed in the form of rotating around a horizontal axis of the two coaxial perforated cylinder with a nozzle between them and radial partitions and the longitudinal partitions are located in the inner cylinder. 1 Il. The invention relates to the production of sulfur from gases.A device for obtaining sulfur from gases, comprising a housing and a surface for condensation and crystallization of sulfur, made in the form of rotating around a horizontal axis of the two coaxial perforated cylinder with a nozzle between them, the device is equipped with radial partitions located between performi partitions, the width of which is made not less than the distance between the radial walls around the circumference of the corresponding cylinder  .The device allows you to perform the process of obtaining sulfur continuous, however, the degree of extraction of sulfur when it is low.The aim of the invention is to increase the degree of extraction of sulfur.The goal is achieved in that the device includes a housing and rotating around the horizontal axis of the two coaxial perforated cylinder with a nozzle between them, and provided with radial partitions located between the perforated cylinder and positioned in the inner cylinder and between the housing and the outer cylinder of the longitudinal walls, the width of which is made not less than the distance between the radial walls around the circumference of the corresponding cylinder, the longitudinal walls of the inner cylinder equidistant offset in the direction of rotation of the ring of the drum relative to the partitions between the housing and the outer cylinder, and the size of their overlap is equal to the distance between the radial partitions on the circumference of the internal cylinder.The proposed device is different from the OS is NTO shifted in the direction of rotation of the ring of the drum relative to the partitions, forming an external reservoir, and the amount of their overlap is equal to the distance between the radial partitions on the circumference of the internal cylinder.Comparison of the proposed technical solution with other solutions, including adjacent areas of technology, showed that this distinctive feature as functionally independent can be found in known in the art solutions (as the principle of offset).However, it was not possible to presuppose that the proposed change in the relative positions of the longitudinal partitions in the known device will allow to increase the degree of extraction of sulfur from gases. This property cannot be determined on the basis of the analysis of the new relative position of the walls and not associated with other signs of technical solutions and their interaction. That is, a causal relationship between the hallmark of the proposed technical solution and the new object property solution was not obvious. No laws on this account was not found.On the basis of the alleged novelty of a causal connection between the distinctive characteristic of the proposed technical solution and projavlennyj, and the proposed solution meets the patentability criteria of "Substantial differences".The drawing shows a cross section of the device with the desired location of the longitudinal partitions, which form six collectors I-VI (three external and three internal to the circular drum). The device comprises a coaxial perforated cylinders 1 and 2, forming rotating around the horizontal axis of the annular drum. The drum is provided with radial partitions 4, dividing it into sectors 3, and is located in the housing 5. The sectors are filled by the nozzle or the active catalyst. The longitudinal walls 6 form the internal and external collectors. Walls forming an internal reservoir, displaced circumferentially in the direction of rotation of the ring of the drum on opposite walls forming the outer reservoir so that their mutual overlap is equal to the distance between the radial partitions on the circumference of the internal cylinder. The collector 1 is designed to supply hot gas Stripping of elemental sulfur during regeneration of the catalyst, II - for the removal of sulfur gases, III - for the removal of cooling air, IV - for the supply of sulphur gases, the giving of air.The device operates as follows.Sulfur gases enter the manifold IV, pass through the sectors 3, filled with nozzle or a catalyst, which is the interaction of serosoderjaschei gases and/or condensation of elemental sulfur, and discharged from the reservoir II. During the rotation of the drum catalytic mass moving into the area of Ottawa. Hot gases of Ottawa served in the collector 1, pass through the catalyst, regenerate it and disposed of collector V. collector V gases containing elemental sulfur, passing the condenser, furnace deaf heating and again served in the collector I. Freed from sulfur catalyst as the rotation of the drum moves in the area of collectors III-VI (cooling). Here air coming from the collector VI, and exhaust from manifold III the catalyst is cooled to the adsorption-catalytic process temperature (80-130aboutC) and newly moved to the area collectors IV-II (communication and retrieval).The device has three zones of flow of gas through the annular drum and three "dead zones", where the longitudinal partitions overlap the surface of the inner and outer cylinders. On these sites do not go there to continue. The mutual shift of the partitions may affect the nature of the processes by changing their duration and intensity. Redistribution zones of Ottawa, condensation and regeneration, therefore, may also influence the release of sulfur. The essence, perhaps, that when the claimed location of partitions (unbalanced, with a shift of) the inner surface of the perforated cylinder is covered later than the outside surface with respect to the same sector. This gives you the opportunity to "push" at least some "reversible" portion of gas in the collector and to prevent small amounts of gas in the adjacent collector (for example, hot gases of Ottawa sulfur in the reservoir of the cooling air, and so on).This effect is particularly noticeable in cases where the device in addition to the processes of condensation of gaseous sulphur is the chemical reaction of the sulfur gases with the formation of elemental sulfur. Apparatus FOR producing SULFUR FROM GASES, comprising a housing, a surface for condensation and crystallization of sulfur, made in the form of rotating around a horizontal axis of the two coaxial perforated cylinder with a nozzle between them, the device f is indoor cylinder and between the housing and the outer cylinder longitudinal septa, the width of which is made not less than the distance between the radial walls around the circumference of the corresponding cylinder, characterized in that the longitudinal walls forming an internal reservoir, equidistant offset walls forming external collectors, with mutual overlapping equal to the distance between the radial partitions on the circumference of the internal cylinder.
FIELD: chemical industry, catalytic processes.
SUBSTANCE: the invention presents a reactor for catalytic processes and is dealt with the field of chemical industry and may be used for catalytic processes. The reactor contains: a body; units of input and output for a reaction mixture and products of reactions; units of loading and unloading of a catalyst; a catalyst layer with the groups of the parallel hollow gas-permeable chambers located on it in height in one or several horizontal planes and each of the chambers has a perforated gas-distributing pipe with impenetrable butt connected to the group collector and used for input of additional amount of the reaction mixture. Each of perforated gas-permeable chambers is supplied with the second gas-distributing pipe with impenetrable butt. At that the impenetrable butts of the pipes are located on the opposite sides. The given engineering solution provides uniformity and entirety of agitation of the reaction mixtures.
EFFECT: the invention provides uniformity and entirety of agitation of the reaction mixtures.
5 cl, 4 dwg
FIELD: initiating ammonia conversion reaction.
SUBSTANCE: proposed method is performed on reticular platinoid catalyst by passing the ammonia-containing gas mixture and oxygen-containing gas through it; local sections of catalyst surfaces are periodically heated to reaction initiating temperature by means of linear electric heating elements located directly on catalyst surface. Equivalent diameters of local sections of catalyst surface are selected between 1-5 of magnitude of external equivalent diameter of separate electric heating element; linear electric heating elements are connected to electric power source at duty factor from 20 to 1 s. Used as material for reticular platinoid catalyst are the following alloys: Pt-81, Pd-15, Rh-3.5 and Ru-0.5 mass-%; Pt-92,5, Pd -4.0 and Rh -3.5 mass-%; Pt-95 and Rh-5 mass-%; Pt-92.5 and Rh-7.5 mass-%. Initiating the ammonia conversion reaction by this method is performed in reactors for production of nitric and hydrocyanic acids and hydroxylamine sulfate.
EFFECT: reduction of time required for reaction over entire surface of catalyst; reduction of explosion danger.
2 cl, 10 ex
FIELD: chemical industry; a method of modernization of a completely detectable reactor.
SUBSTANCE: the invention is pertaining to the method of modernization of a completely detectable reactor. The method provides for modernization of an in-situ reactor of a heterogeneous exothermic synthesis having an external body with several located in it one over another and at some space from each other layers of a catalyst, at realization of which on the initial stage in the upper part of the body form at least the first layer of the catalyst filled in with the first catalyst having the activity picked beforehand; also form several layers of the catalyst located in the lower part of the body in parallel to each other. The layers located in the lower part of the body are filled in with the second catalyst, activity of which exceeds the activity of the first catalyst with which at least the first layer is filled in. The method of an exothermic heterogeneous synthesis with high yield is realized by feeding of the gaseous reagents in the reactor of a synthesis, which has a body with several catalyst layers resting on it, which are placed one over another at some space from each other and in which a reaction of interaction between the gaseous reagents runs. A reaction mixture also is fed at least from the first layer of the catalyst located in the upper part of the body into several layers of the catalyst located in parallel to each other in the lower part of the body. Let the reaction mixture run through the catalyst layers located in the lower part of the body and filled in with the catalyst the reaction activity of which exceeds activity of the catalyst, with which at least the first layer of the catalyst is filled in and the products of the reaction of the synthesis are taken out from the reactor catalyst layers located in the lower part of the body. The technical result is an increased conversion yield and productivity of the reactor at low operational costs and a low power consumption.
EFFECT: the invention ensures increased conversion yield and productivity of the reactor at low operational costs and a lower power consumption.
9 cl, 2 dwg
FIELD: nuclear power engineering, transport, chemical mechanical engineering, and other industries.
SUBSTANCE: proposed method for recombining hydrogen and oxygen in gas medium meant to ensure hydrogen safety includes bringing of gas mixture in contact with heated catalyst body disposed along heat-conducting channel to ensure heat transfer between them. Temperature of heat-conducting channel hot end at point of its contact with catalyst body is maintained between 150 and 350 °C and temperature of its cold end at point of its contact with catalyst body is maintained below that of hot end. Gas mixture is passed through catalyst body from cold end of heat-conducting channel to its hot end. Hydrogen-and-oxygen recombiner has case with inlet and outlet sections, as well as heat-conducting channel disposed in-between and catalyst body placed on the path of gas mixture flow along heat-conducting channel. The latter is equipped on conducting end with cooling device and on outlet end, with heater. Hydrogen concentration working range is extended to 0.5 - 25% of gas mixture.
EFFECT: enlarged hydrogen concentration range, enhanced operating reliability under different operating conditions.
5 cl, 2 dwg
FIELD: chemical industry; equipment for synthesis of hydrocarbons.
SUBSTANCE: the invention is pertaining to chemical industry, in particular, to the horizontal reactor for synthesis of hydrocarbons according to Fisher-Tropsh method. The offered reactor consists of the single-type design coaxial horizontal reactive sections. Each section is mounted on a wheeled trolley with adjustable supports and incorporates a casing, a fixed in it through adapters catalytic box with a built-in heat exchanger, through which the heat transfer medium is compulsorily pumped over. The catalytic box is made in the form of a package assembly of the same type catalytic modules is sectional with usage of the fastening strainers and tightening gaskets. The catalytic module is assembled with usage of welding from longitudinal or transversal in respect to the longitudinal axis sections, the square-type flat soldered on corrugations or ribs double walled panels with the general depth of 5-15 mm, at the thickness of walls of 1 - 2 mm, at the height of corrugations or ribs of 3-9 mm at their depth of 0.3-2.0 mm with the shanks welded to them. The catalytic area is formed due to selection of the depth of the shanks greater, than the depth of the panels, owing to what at their assembly in compliance with shanks by means of welding between the panels are left the vertical slits of 5...20 mm width where fragments-granules of the catalytic agent are placed. The given engineering solution ensures conditions close to isothermal requirements of the synthesis through the whole volume of the reaction zone, ease of assembly and maintenance of the reactor in all climatic zones, and also in provision of its reliability, transportability and repairability.
EFFECT: the invention ensures conditions close to isothermal requirements of the synthesis through the whole volume of the reaction zone, ease of assembly and maintenance of the reactor in all climatic zones, its reliability, transportability and repairability.
3 cl, 6 dwg
FIELD: chemical engineering; production of reactors for catalytic synthesis.
SUBSTANCE: the invention is pertaining to the field of chemical engineering, predominantly to reactors of catalytic synthesis. The horizontal multi-shelved catalytic reactor consists of a load-bearing plate, a high-pressure cylindrical body with a cover, which may be transported along the axis of the catalytic unit. The reactor has the typical component and the design of components of the catalytic unit, which consists of the sealed cylindrical catalytic containers, the load-bearing support frame and the module-type heat-exchange devices. The load-bearing support frame represents a crosswise section beam cantileverly fixed on the load-bearing support plate. The vertical plane of symmetry of the frame coincides with the longitudinal axis of the high-pressure body, and on the shelves there are catalytic containers installed in two parallel rows. The frame is cantileverly fixed to the load-bearing plate, through which all inlets and outlets are carried out. The plate is upright mounted on the horizontal foundation and the high-pressure body is joined with it. In the module heat-exchange devices there are tracts for passage of the reactionary gases and the heat-transfer medium. The invention ensures improved conditions of the reactor operation, reduction of its overall dimensions and the mass, simplification of the process of manufacture.
EFFECT: the invention ensures improved conditions of the reactor operation, reduction of its overall dimensions and the mass, simplification of the process of manufacture.
2 cl, 6 dwg
FIELD: chemical industry; methods and installations for treatment of the discharge gases in the processes of desulphurization.
SUBSTANCE: the invention presents the method and the installation intended for treatment of the discharge gases in the processes of desulphurization. The method provides for: production in the technological section of the discharge gas having the concentration of sulfur dioxide at least of 1.5 %; communication of the hydrogenation reactor through by the fluid medium with the technological section; provision of the hydrogenation reactor with the mixed feeding gas containing at least a part of the discharge gas and at least a part of the spent gas depleted by hydrogen sulfide; integration at least of a part the spent gas depleted by hydrogen sulfide from the contactor with the discharge gas from the technological section for formation of the mixed feeding gas having the concentration of the sulfur dioxide of no more than 2.5 %. The technical result of the invention is reduction of the output of the hydrogen sulfide and-or the sulfur dioxide.
EFFECT: the invention ensures reduction of the output of the hydrogen sulfide and-or the sulfur dioxide.
23 cl, 3 dwg
FIELD: petrochemical industry; devices for hydrocarbons processing.
SUBSTANCE: the invention is pertaining to the field of petrochemical industry, to the devices used for hydrocarbons processing, in particular, to the reactor containing the vertically elongated reaction chamber, having, at least, one reaction layer and the reactor internal device. At that the reactor internal device contains the essentially horizontal lower supporting grating and, at least, one distributor made in the form of the distribution plate and the means for distribution of the cooling liquid medium. The distribution device is arranged above and at a distance from the lower supporting grating and is connected with it by means of the vertical elongated supports. The lower supporting grating rests on the upper surface of the reaction layer. Besides, the invention is pertaining to the usage of such reactor in the method of the hydrocarbons processing. The technical result of the invention is arrangement of the reactor internal device at the desirable vertical level of the reaction chamber.
EFFECT: the invention ensures arrangement of the reactor internal device at the desirable vertical level of the reaction chamber.
12 cl, 4 dwg
FIELD: chemical industry; devices for production of the synthesis gas.
SUBSTANCE: the invention is pertaining to the radial type device for realization of oxidation of the gaseous hydrocarbon fuels with the help of the catalytic agent and may be used for production of the synthesis gas. The radial type device for production synthesis gas contains the gas-distribution perforated tube 3 and the catalytic agent 4. The catalytic agent is made in the form of the annular heat-conducting dispensing catalytic plates and the heat-conducting separators with the grooves alternating among themselves with formation of channels for the gaseous streams running and connected among themselves. On the both sides of the separator 6 there are grooves 7 made in the form of the evolvent from the center to the periphery. The annular plates of the catalytic agent are mounted perpendicularly to the axis of the shafts of the gas-distribution perforated tube 3. Inside of the gas-distribution perforated tube 3 there is the starting system, which consists of the mixer 1 with the ignition plug 2 or the electric heating component. The invention presents the compact and effective device.
EFFECT: the invention presents the compact and effective radial type device used for realization of oxidation of the gaseous hydrocarbon fuels with the help of the catalytic agent and for production of the synthesis gas.
6 cl, 3 dwg
FIELD: petrochemical processes.
SUBSTANCE: invention concerns reactor with fluidized bed of fine catalyst, which reactor contains upright cylindrical body, sectioning grids with their free area increasing along the height of reactor, connecting pipes for supplying feedstock and evacuating contact gas, and receiving and withdrawing recycled catalyst, and cyclones with dust-removing risers. More specifically, upper grid has free area larger than 60 and lesser than 90% of the body section, ends of connecting pipes receiving recycled catalyst and ends of dust-removing risers are disposed above upper grid and below fluidized bed.
EFFECT: increased output of reactor, improved performance of dehydrogenation (increased yield of olefins and reduced consumption of catalyst), and improved environmental condition.
FIELD: transportation of sulfur.
SUBSTANCE: according to proposed method of transportation of elemental sulfur, elemental sulfur is mixed with anhydrous ammonia and/or sulfur dioxide to form fluid mixture which is then transported in container. Method of extraction of elemental sulfur from sulfur containing geological formation, mainly water-free, includes blowing through of geological formation with anhydrous ammonia, obtaining liquid solution of elemental sulfur dissolved in anhydrous ammonia and extraction of elemental sulfur from liquid solution. Method of extraction of elements sulfur from sulfur-containing mineral formation, mainly water-free, includes blowing through of mineral formation with liquid anhydrous ammonia with obtaining liquid solution of elemental sulfur in anhydrous ammonia and extraction of elemental sulfur from liquid solution. Method of storing elements sulfur includes mixing of elemental sulfur and liquid anhydrous ammonia with obtaining liquid solution or suspension and forming deposts from solution or suspension in underground formation, mainly water-free. Composition consisting mainly of solution or suspension is essentially mixture of elemental sulfur with liquid sulfur dioxide.
EFFECT: improved economic characteristics of industrial chemical processes which include presence of sulfur either in elemental or chemically boded form.
32 cl, 9 ex, 4 dwg
FIELD: mechanics; heating.
SUBSTANCE: heater element comprises a set of spacing-separated melting tubes that form a heating plane, the upper collector tube and the lower collector tube attached to the relevant ends of the melting tubes and communicating with them. The upper collector tube has an inlet for steam delivery and distribution within the melting tubes system. The lower collector tube has an outlet for condensate collection and discharge. In addition the heater element is equipped with a hot-tipped tube positioned beside and before the lower collector tube. The hot-tipped tube has a steam inlet and a condensate outlet and is intended for sulphur melting before the lower collector. The heater elements may be controllable and modular. The device for solid sulphur melting consists of a support tower for the heater element transportation, a fixture for at least partial support of the heater element in the vertical position, a fixture for the heater element transfer from the vertical position to a basically horizontal one on a transportation truck, a fixture for the melting device travel across the ground surface in the direction of solid sulphur storage location. The latter fixture comprises a hydraulic cylinder, a directional distributing valve and a variable volume pressure compensation pump. The heater element for melting cross band contaminated sulphur consists of a set of spacing-separated melting tubes confining the melting plane and individual melting tubes having steam inlets and condensate outlets with the specified set of melting tubes performing cross band contaminated sulphur melting whenever the device comes in contact with a bulk of sulphur containing a cross band.
EFFECT: simplified and relatively inexpensive fabrication technique; possibility of onsite sulphur melting.
31 cl, 28 dwg
FIELD: oil and gas industry.
SUBSTANCE: invention refers to methods of hydrogen sulphide withdrawal from liquid sulphur and is designed for implementation at enterprisers of oil and gas processing industry at production of elemental sulphur. Liquid sulphur is de-gassed by means of mixing liquid sulphur with a catalyst. As the catalyst air is used; also sulphur extracted from a process equipment is mixed with air in a flask containing ferromagnetic mixing elements; the flask is installed in a space of a stator with three-phase coil connected to a source of alternate current. Fragments of magnets of 3-5 mm fraction are used as ferromagnetic elements.
EFFECT: invention facilitates reducing time of de-gassing without reduction of quality.
2 cl, 1 tbl
SUBSTANCE: method for separation of the elemental sulphur and sulphide concentrate from the intermediate products of the sulphide concentrates hydrometallurgy processing includes sulphur-sulphide flotation of the intermediate original pulp in order to separate the sulphur and sulphides from intermediate oxide components with forming of the sulphur-sulphide concentrate. Then the autoclave disintegration of the sulphur-sulphide concentrate pulp is carried out in the presence of reagent - sulphide hydrophilisator and at the temperature higher than melting point of the elemental sulphur. After that the sulphur flotation is carried out in order to separate the disintegrated pulp into sulphur and sulphide concentrates. Before the sulphur-sulphide and sulphur flotations the pulp undergoes the additive agitation with the reagents, the disintegration is carried out at the temperature 140-150°C.
EFFECT: effective separation of the sulphur and sulphide concentrates.
5 cl, 3 dwg, 1 tbl
SUBSTANCE: invention relates to the oil and gas industry and is meant for use in degassing liquid sulphur. Sulphur is degassed in a column with a packed layer (2) in which the catalyst used is a support (3) on which cobalt disulfophthalocyanine is deposited. A packed catalyst is used in the packed layer of the column.
EFFECT: invention considerably shortens the duration of degassing sulphur.
2 cl, 1 ex, 1 tbl, 1 dwg
SUBSTANCE: invention can be used in the chemical industry. A method of separation of melted sulphur from a flowing medium includes isolation of a liquid mixture, which contains a redox solution and melted sulphur into a reservoir, which has an upper part, a lower part, a zone of a gaseous phase, a zone of the redox solution and a zone of melted sulphur. Melted sulphur subsides in the reservoir and forms a separating boundary between the zone of the redox solution and the zone of melted sulphur at some height of the reservoir. Control of pressure in the reservoir is performed and gas is added or discharged from the zone of the gaseous phase, located immediately above the zone of the redox solution in the reservoir. Pressure inside the reservoir is supported irrespective of the height of the phase separation boundary. Gas is added through a valve of gas supply and discharged through a valve of gas output. Control over the valves is performed by means of a controller. Melted sulphur is discharged from the reservoir and a level of the boundary of the phase separation is measured by means of a device for control of the boundary of the phase separation depending on intensity of the melted sulphur output from the reservoir.
EFFECT: invention makes it possible to increase quality of separated sulphur, prevent its carryover.
9 cl, 4 dwg
SUBSTANCE: disclosed is a method of producing granular sulphur by adding liquid sulphur to water. Liquid sulphur under pressure of 900 Pa to 9000 Pa flows from an opening with a diameter of 0.5 mm to 2.5 mm in form of a vertical solid jet and falls into water. The distance between the exit point of the jet of sulphur and the water surface is not more than 80 mm. The obtained spherical sulphur granules are the best geometric shape of solid sulphur, which is characterised by the best mass to volume ratio and the best mechanical strength. The uniformity of the grain-size composition and the spherical shape of the particles improve the accuracy of feeding granular sulphur with any type of feeder.
EFFECT: obtaining granular sulphur in the form of spherical particles of a given diameter.