A method of obtaining a compressed drained and cleaned gas
(57) Abstract:The method can be used for drying and cleaning compressed gas compressor units. The gas is compressed in the compressor. Conduct preliminary drying and cleaning gas sadomasoquista followed by drying it in one of two alternately operating the adsorbers. Final drying is carried out in the limit filter. In the process of drying gas in one of the adsorbers carry out the regeneration of the second adsorber. Switching adsorbers from the drying mode to the regeneration mode and back is done with the use of fast-acting valves. When switching adsorbers pre disable saturated adsorber from highway gas injection, and within 4-6 to produce a pressure relief only from sadomasoquista, then report the last regeneration of the adsorber to the main discharge. Saturated adsorber is connected to the backbone regeneration and subsequent unloading. This reduces the idle time of operation of the compressor when switching adsorbers, which increases the efficiency of the method. 1 Il. The invention relates to a compressor installations and can be used for drying and Oluchi compression gas compressor and the subsequent dehydration of the compressed gas using two alternately operating adsorbers, one of which works on drying and the other for regeneration of the adsorbent. Switching adsorbers from one mode to another is carried out by opening and closing valves installed before and after the adsorbers. In automated machines use a fast-acting shut-off valves with electric, pneumatic or hydraulic drive /U.S. patent 2957544, N. CL 183-4.1/.The disadvantage of this method is that when switching adsorbers arise sudden surges of high pressure gas in the included in the work of the adsorber, resulting in rapid destruction of the adsorbent and filter elements.A method of obtaining drained and cleaned of high pressure gas, including compressed gas in the compressor, the preliminary drying and cleaning gas sadomasoquista with subsequent drying in one of the two alternately operating the drying adsorbers, while switching adsorbers performed after preliminary discharge pressure of the adsorber working on drying /P. A. Tigorev "Handbook of marine compressors. Shipbuilding, 1981, pp. 291-295. prototype inventions/.The disadvantages of this method include the fact that the discharge pressure of Adar And during all of this period the supply of compressed gas to the consumer stop, the compressor runs non-productive.The aim of the present invention is to improve the efficiency of the method of obtaining a compressed to high pressure drained and cleaned gas by reducing the time of idling operation of the compressor when switching adsorbers.The invention consists in the following.In the process of the production of dried and purified high-pressure gas by compressing it in the compressor, pre-drying and purification in sadomasoquista, followed by drying in one of the two alternately operating the adsorbers, the final drying in the limit filter, while in the process of drying gas in one of the adsorbers carry out the regeneration of the second adsorber and switching adsorbers from the drying mode to the regeneration mode and back is done with the use of fast-acting valves, when switching adsorbers pre disable saturated adsorber from highway gas injection, and within 4 - 6 sec. produce a pressure relief only from sadomasoquista, then report the last regeneration of the adsorber with the line pressure, and a saturated adsorber is connected to the backbone regeneration with poslednego way.Compressor station includes a compressor 1, a discharge line 2 with consistently defined sadomasoquista 3 and two parallel to the adsorbers 4 and 5, the end of the filter 6, the fast shut-off valves 7, 8, 9, 10, 11, electrically connected with the control unit 12, the check valves 13, 14, 15, 16, self-regulating discharge valve 17, pipelines, highways drying 18, pipelines, highways regeneration 19.During operation of the compressor station gas when it is compressed in the compressor 1 flows through sadomasoquista 3 in one of the adsorbers 4 or 5, and then through the check valves 15 or 16 and the terminal filter 6 to the consumer.The adsorbers 4 and 5 are alternately (one running on drying, and the other is regenerated). When the adsorber 4 is running on drying, the valves 8 and 11 are open, and valves 9 and 10 are closed. Compressed gas from the compressor 1 through sadomasoquista 3 enters the adsorber 4 to dehydration and drained the gas from the canister 4 through the check valve 15 and the terminal filter 6 is supplied to consumers. When the adsorbent in the adsorber 4 will become saturated with moisture, at a signal from the control unit 12 switches the adsorbers. First close the valves 8 and 11, disconnecting the adsorber 4 Magistral the deposits made from sadomasoquista 3. After 4-6 seconds. open valves 9 and 10, connecting the regenerated adsorber 5 with line drying, and close the valve 7. Through the valve 10, the adsorber 4 is connected to the backbone, and regeneration through self-regulating discharge valve 17 unload it. In the adsorber 5 through the valve 9 starts to come from sadomasoquista 3 low-pressure gas (as sadomasoquista 3 before it was unloaded), and further the pressure increases gradually, and the roll of compressed high-pressure gas from the end of the filter 6 in the adsorber 5 prevents the check valve 16, thereby eliminating the possibility of destruction of the adsorbent and filter elements in the adsorber 5.The proposed method of producing compressed to high pressure drained and cleaned the gas more economical and efficient than known methods, and can improve the reliability of the compressor station. A method of obtaining a compressed drained and cleaned gas, including compressed gas in the compressor, the preliminary drying and cleaning in sadomasoquista with subsequent drying in one of the two alternately operating adsorbers and final drying in the limit filter, while in the period of drying gas in one of the egenerali and back is done with the use of fast-acting valves, characterized in that when switching adsorbers pre disable saturated adsorber from highway gas injection, and within 4 to 6 to produce a pressure relief only from sadomasoquista, then report the last regeneration of the adsorber with the line pressure, and a saturated adsorber is connected to the backbone regeneration and subsequent unloading.
FIELD: petroleum and gas industries; adsorptive refining of liquid and gas streams from impurities.
SUBSTANCE: the invention is dealt with designs of adsorptive apparatuses and may be used in different branches of industry for adsorptive refining of liquid and gas streams from impurities. The adsorptive apparatus contains a cylindrical body with connecting pipes of the cleaned medium feeding and withdrawal of not adsorbed components, in which there is a partition dividing its space into two communicating chambers, in each of which a sorbent is placed. At that the partition has a cavity limited at least by one flexible wall. The invention allows to increase a purification efficiency of the divided mixture at the expense of exclusion of wall cavities, the use of different sorbents with various properties, to ensure operation of the adsorber with changing while in operation volumes of adsorbent in a corrosive medium and high temperature of a desorption.
EFFECT: the invention ensures increased purification efficiency, possibility to use different sorbents with various properties, operation of the adsorber with changing while in operation volumes of adsorbent.
FIELD: sorption neutralization of gases.
SUBSTANCE: proposed device includes two parallel horizontal gas-tight reactors arranged in casing at spaced relation; each reactor includes at least two sections filled with bulk granulated adsorbent and closed over ends with partitions carrying ejection pneumatic haulage units mounted above flow divider; device is provided with inlet and outlet branch pipes for delivery and discharge of gas; provision is made for V-shaped slide at angle of generatrices exceeding slope of repose for bulk adsorbent; V-shaped slide of each reactor is provided with drain branch pipe; walls of central reservoir are combined with hood excluding bridging of adsorbent; hood is equidistant relative to slide. Mechanism for hermetic discharge of used adsorbent includes longitudinal screw feeder and discharge pipe fitted with swivel gate valve; direction of turn of spiral provided on screw feeder of discharge mechanism is opposite to direction of main spiral.
EFFECT: improved quality of neutralization of gases; enhanced operational safety.
2 cl, 6 dwg
FIELD: devices for separation of gases by adsorption.
SUBSTANCE: the invention is pertaining to the devices for separation of gases by adsorption, in particular, to adsorbers for realization of a cyclical adsorption-desorption process of separation of the air. The adsorber used for a short-cycled heatingless adsorption contains a body filled with a sorbent and a mounted inside it at least one ring conical partition and unions for feeding (withdraval) of the treated gaseous medium and separation of a target component, supplied with the filtering partitions. At that in the narrowed part of the conical partition there is a filtering device made in the form of an enclosed in the body rolled transversely as Archimedes spiral hose filter inside which there is a band with protrusions and cavities forming with the hose filter internal walls bins and as a sorbent they use a layered charge of faujasite zeolites in calcium and lithium forms in the ratio from 0.2:1 up to 1:0.2. At that on the boundary line of the layers there are perforated partitions with a high thermal conductivity. The invention allows to improve reliability of operation of the adsorber.
EFFECT: the invention ensures improved reliability of operation of the adsorber.
SUBSTANCE: invention provides an improved adsorbent to remove impurities form various hydrocarbon streams. Adsorbent contains zeolite, alumina, and an additional metal oxide, at least 10 mol % of metal in the metal oxide being based on stoichiometric amount of metal required to compensate negative charge of zeolite lattice. Resulting adsorbent containing zeolite X, aluminum oxide, and sodium is successfully used to treat ethylene stream to liberate the latter from CO2, H2S, methanol, and other sulfur- and oxygen-containing compounds.
EFFECT: expanded hydrocarbon purification possibilities.
6 cl, 4 tbl, 11 ex
FIELD: environmental protection.
SUBSTANCE: invention provides material for retaining polyhalogenated compounds consisted of filler capable of absorbing polyhalogenated compounds and polyolefin matrix wherein filler is entirely bound and captured.
EFFECT: extended possibilities of capturing harmful polyhalogenated compounds and inconveniences of activated carbon and polyolefin absorbers are avoided.
13 cl, 1 dwg
FIELD: gas treatment processes.
SUBSTANCE: process comprises passing gas-air mixture through powdered polymer adsorbent bed followed by desorption, said powdered polymer adsorbent being, more specifically, polyvinylchloride powder with particle size 0.16 to 10.00 mm and total particle porosity 29 to 52%. Adsorption is conducted in periodic mode in fixed bed adsorbers. Desorption is effected under vacuum at residual pressure from 0.001·104 to 2.5·104 Pa.
EFFECT: enabled quantitative isolation of a wide spectrum of organics at simplified purification technology.
1 tbl, 23 ex
FIELD: obtaining fresh water from atmospheric air in remote, dry or arid zones.
SUBSTANCE: method involves creating air flow with air blower; supplying air flow through air ducts, valves and heat-exchangers; absorbing water steam from air flow by sorbent at absorption stage; heating sorbent layer at desorption stage by heat generators arranged directly in sorbent layer; removing desorbed water steam from sorbent layer; condensing water steam in condenser and accumulating thereof in storage vessels. The heat generators are heat-exchangers with developed surfaces distributed in sorbent layer and sorbent heating is performed due to water steam condensation on heat-exchanger surfaces. Besides, electric heaters may be used as the heat generators. The electric heaters are also distributed in sorbent layer and are heated by alternating current supplied thereto. The heat generators may be formed as current-conducting sorbent layer heated by electric current. Catalyst may be also used as the heat generators. The catalyst is located in sorbent layer and adapted to provide hydrocarbon oxidation reaction.
EFFECT: increased quality of obtained fresh water and reduced power consumption for fresh water obtaining.
6 cl, 3 ex, 2 dwg
FIELD: gas treatment.
SUBSTANCE: method comprises passing air through cooled adsorbent bed and then through carbon monoxide oxidation catalyst bed based on manganese and copper oxides. Thereafter, air is passed through heated adsorbent, after which air stream direction is reversed and simultaneously adsorbent is heated at its inlet and heated at its outlet. Cooling and heating are accomplished with the aid of thermoelectric elements, wherein current direction switching is made synchronously with air stream direction reversal. Filter module contains adsorber connected to cartridge at its exit. Cartridge contains carbon monoxide oxidation catalyst. A second adsorber is mounted on the outlet of cartridge. Adsorbers are connected to air stream switch and made with internal ribbing coupled with thermoelectric elements. The latter connected to power source over current direction switch.
EFFECT: simplified process, increased reliability, reduced power consumption, reduced apparatus dimensions, and avoided operation suspension for performing regeneration.
5 cl, 4 dwg
SUBSTANCE: device comprises dust catcher, adsorber, and sucking device connected via the through passage for supplying air with inlet and outlet branch pipes and mounted on the individual section of the movable platform for permitting mutual connection. The device is provided with the additional section of the movable platform provided with the lock device for connecting with the main sections. The additional section is provided with the device for fine purification of air, which is mounted downstream of the adsorber. The device for fine purification is made of housing that receives vertical grids whose mesh size does not exceeds 0.6 mm. The layers of chemical absorbers are interposed between the grids. The layers catch harmful gases that are generated during welding. The thickness of each layer is 50-80 mm. The specific gas loading of each of the layers does not exceed 1.5 l/min cm2. The device for fine purification of air is provided with the mechanism for discharging of the exhaust chemical absorbers.
EFFECT: enhanced quality of purification.
1 cl, 1 dwg