CN201990479U - Energy-saving device utilizing pressure swing adsorption technique for great production increasing of low-temperature methanol washing and/or liquid nitrogen washing - Google Patents
Energy-saving device utilizing pressure swing adsorption technique for great production increasing of low-temperature methanol washing and/or liquid nitrogen washing Download PDFInfo
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- CN201990479U CN201990479U CN2010206941839U CN201020694183U CN201990479U CN 201990479 U CN201990479 U CN 201990479U CN 2010206941839 U CN2010206941839 U CN 2010206941839U CN 201020694183 U CN201020694183 U CN 201020694183U CN 201990479 U CN201990479 U CN 201990479U
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Abstract
The utility model discloses an energy-saving device utilizing pressure swing adsorption technique for great production increasing of low-temperature methanol washing and/or liquid nitrogen washing, such as a low-temperature methanol carbon washing device and a liquid nitrogen washing device in ammonia synthesizing equipment. An input end of the low-temperature methanol carbon washing device is connected to desulfurized gas or transforming gas, a decarbonized gas output end of the low-temperature methanol carbon washing device is connected with a decarbonized gas input end of the liquid nitrogen washing device, and a hydrogen-nitrogen synthesized gas output end of the liquid nitrogen washing device is connected with a synthesized gas compressor. A pressure swing adsorption decarbonizing device and a pressure swing adsorption hydrogen purifying device are further comprised, an input end of the pressure swing adsorption decarbonizing device is serially connected with the input end of the low-temperature methanol carbon washing device, a decarbonized gas output end of the pressure swing adsorption decarbonizing device is connected with a decarbonized gas input end of the pressure swing adsorption hydrogen purifying device, a hydrogen output end of the pressure swing adsorption hydrogen purifying device is connected with the synthesized gas compressor, and a nitrogen inlet is arranged at the hydrogen output end of the pressure swing adsorption hydrogen purifying device. By means of the device, production increasing amplitude can be increased by more than 50%.
Description
Technical field
The utility model belongs to the synthetic gas production technical field, particularly is applicable to coal, residual oil, pitch, refinery coke etc. to be that the employing pressure swing adsorption of the synthetic gas device of raw material increases production and energy-conservation device low-temperature rectisol and/or liquid nitrogen washing significantly.
Technical background
Domestic and international 1000 tons/day and the above scale overwhelming majority are that the purification section in the synthetic ammonia installation of raw material all is to adopt the low-temperature rectisol desulfurization decarbonization purification with coal or residual oil, liquid nitrogen washing removes methane and oxycarbide deep purifying, produces the fresh synthesis gas that meets the ammonia synthesis requirement; Also there is employing polyglycol dimethyl ether process (claiming the Selexol method abroad, domestic title NHD method) to carry out the synthetic ammonia installation of desulfurization decarbonization purification.
Low-temperature rectisol desulfurization decarbonization purification method is to adopt low-temp methanol as solvent, the method for selectively removing sulfide and carbonic acid gas.Therefore low-temperature rectisol purifies the desulfurization decarbonization purification method needs supporting freezing plant (for example ammonia refrigerating installation or propylene refrigeration device).Because the ammonia of synthesis ammonia plant is intermediates or the finished product, be simple and easy to, generally adopting ammonia is refrigerant (ammonia refrigerating installation).
Liquid nitrogen washing is removed methane and oxycarbide deep-purifying method, the subzero fractionation deep purifying device that its liquid nitrogen washing device is lower potential temperature, general and low temperature washing device for methanol coupling.The cold that liquid nitrogen washing device itself consumes is few, can adopt the low-temp low-pressure expansible cold of the cold of low-temperature expansion of cold, high pressure nitrogen of low temperature washing device for methanol and nitrogen washing tail-gas can realize cold balancing in the liquid nitrogen washing cold box substantially.Repeat cooling and re-heat process for fear of process gas between low temperature washing device for methanol and the liquid nitrogen washing device, the purified gas of low-temperature rectisol directly carries out low temperature separation process to liquid nitrogen washing and purifies, and the synthetic gas after the liquid nitrogen washing arrives low-temperature rectisol again and reclaims cold.Therefore low-temperature rectisol and liquid nitrogen washing are close in the cold recovery co-relation, and the cold recovery cognation is big each other.
Primary processes such as the heat regeneration of the enrichment that the selectivity that low-temperature rectisol wash-out sulphur decarburization purifying method generally comprises sulfide and CO2 absorbs, CO2 reduces pressure regeneration, sulfide, sulfide, methanol-water separate.Its complex process, long flow path, equipment be many, arrange that the compact difficulty, transformation time transformed is long, and with liquid nitrogen washing device close relation, be the workshop section of synthetic ammonia installation core; The transformation of low-temperature rectisol also relates to the variation of refrigeration requirement amount, cause the chain transformation of freezing plant, so the cognation between the workshop section is strong, and low-temperature rectisol is transformed difficulty.
The liquid nitrogen washing device comprises molecular sieve purification and ice chest, and the molecular sieve purification investment has accounted for the over half of liquid nitrogen washing device, and particularly program control trip valve is its core, the price height; The ice chest working temperature is lower, and the equipment layout compactness is transformed difficulty.
Therefore each the own volume increase transformation of low temperature washing device for methanol and liquid nitrogen washing device is just very difficult, transforms difficulty more together.Add the corresponding supporting transformation of freezing plant, make such transformation feasible hardly.
The general synthetic ammonia installation that moves more than ten years substantially can reach and produce operation up to standard.Technology and equipment are all ripe under original design production capacity, and equipment component has reached life, so factory is considering removable parts equipment.
And from the project initiation of these synthetic ammonia installations till now, in fact the development of synthetic ammonia technology has been pass by again nearly 20 years.In these 20 years, some key core technology of synthetic ammonia installation, for example sulfur-resisting transformation stove internals technology, synthesic gas compressor and turbine rotor technology, synthetic ammonia tower inner parts technology etc. have had significant progress, make some key equipments and workshop section only adopt the method for inner piece reform to improve performance and increase production significantly and the energy-conservation possibility that becomes that the transformation of all the other workshop sections can be dressed to the transformation potential of these nucleus equipments and workshop section.Transforming the new device of the identical production capacity of output investment ratio of volume increase invests much lower; Move the device of more than ten years simultaneously and transform, technical can be old newly to be with, improve the new technology level of application of old device, improve technical level, eliminate safe hidden trouble; And this intermediate item improved plant efficiency because adopted new technology, and the effect that often can reach energy-saving and emission-reduction is transformed in volume increase, meets the relevant policies of country, obtains the support of national policy.
Therefore plant modification less investment now, the output height has good economic benefits and environment social benefit.Therefore the development of synthetic ammonia technology, the present situation of existing synthetic ammonia installation and volume increase and energy-conservation the laying a solid foundation that national policy all is synthetic ammonia technique device before 20 years.
Transformation absorption (PSA) technology is that a new gas that grows up over nearly more than 30 years separates and purification techniques.Nineteen forty-two, Germany delivered the patent documentation of first piece of no hot adsorption cleaning air.At the beginning of the sixties, U.S. combinating carbide company has realized that first transformation adsorbs the industrialization of four bed process technology.Because the pressure swing adsorption less investment, working cost is low, product purity is high, simple to operate, flexible, environmental pollution is little, raw material source of the gas subject range is wide, therefore, after entering the seventies, this technology is widely used in fields such as petrochemical complex, metallurgy, light industry and environmental protection.
Why the adsorption gas separating technology process is achieved is because two essential propertys that sorbent material is had in physical adsorption: the one, to the adsorptive power difference of different components, the 2nd, the loading capacity of adsorbate on sorbent material rises with the dividing potential drop of adsorbate and increases, and descends with the rising of adsorption temp.Utilize first character of sorbent material, can realize the preferentially adsorbed of some component in the mixed gas and other component is purified; Utilize second character of sorbent material, can realize that sorbent material adsorbs under low temperature, high pressure and under high temperature, low pressure desorption and regeneration, thereby constitute the absorption and the reprocessing cycle of sorbent material, reach continuous divided gas flow and purify purpose.
The utility model content
Technical problem to be solved in the utility model is at existing low temperature washing device for methanol and the existing problem of liquid nitrogen washing plant modification, by to being raw material with coal or residual oil etc. both at home and abroad, researching and analysing of the synthetic ammonia installation of different gasification process proposes to adopt pressure swing adsorption that low-temperature rectisol and/or liquid nitrogen washing are increased production and energy-conservation device significantly.This device can be avoided the transformation of existing low temperature washing device for methanol and liquid nitrogen washing device, and the transformation of associated cold generator, transforms simple and conveniently, and the time is short, less investment.Adopt this method can realize the amount of increase in production of original design production capacity 30%～50% and suitably energy-conservation, even can realize more massive volume increase (the rich ability of workshop section and transformation possibility before and after depending on).
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
Adopt pressure swing adsorption that low-temperature rectisol and/or liquid nitrogen washing are increased production and energy-conservation device significantly, comprise low-temperature rectisol carbon device, the liquid nitrogen washing device, described low-temperature rectisol carbon device and the series operation of liquid nitrogen washing device, the input termination sweet gas of low-temperature rectisol carbon device or conversion gas, the decarbonization gas output terminal of low-temperature rectisol carbon device is connected with the decarbonization gas input terminus of liquid nitrogen washing device, the hydrogen nitrogen synthetic gas output terminal of liquid nitrogen washing device is bonded into air compressor, it is characterized in that, also comprise pressure swing adsorption decarbonization device and transformation absorption purified hydrogen device, described pressure swing adsorption decarbonization device and the series operation of transformation absorption purified hydrogen device, the input terminus of pressure swing adsorption decarbonization device is in parallel with the input terminus of low-temperature rectisol carbon device, the decarbonization gas output terminal of pressure swing adsorption decarbonization device is connected with the decarbonization gas input terminus of transformation absorption purified hydrogen device, the hydrogen output terminal of transformation absorption purified hydrogen device is bonded into air compressor, disposes nitrogen at the hydrogen output terminal of transformation absorption purified hydrogen device and allocates mouth into.
The utility model adopts transformation adsorbing and removing CO2 technology to bear the decarburization load of volume increase portion gas, avoids the transformation of existing low-temperature rectisol decarbonization device, and avoiding the cold generator simultaneously is the transformation of freezing plant.
The utility model adopts transformation adsorbing and extracting hydrogen technology to bear the task of removing CH4 and CO of volume increase portion gas, can produce pure hydrogen production, avoids existing liquid nitrogen washing refining plant transformation.
The utility model adopts existing low-temperature rectisol desulfurizer local flow improvement, and existing low-temperature rectisol decarbonization device and liquid nitrogen washing device are not transformed, and realize the significantly purpose of volume increase.Existing low-temperature rectisol desulfurization and decarburization device does not have to change to refrigeration requirement and other general facilities consumption requirements substantially after volume increase and the reducing energy consumption, refrigeration requirement to freezing plant is constant substantially, therefore freezing plant can provide maximum cold to increase production to ammonia synthesis loop, therefore can reach maximum amount of increase in production.
Utilize the existing low-temperature rectisol desulfurizer of the utility model transformation, still concentrate after the transformation to remove and recycle sulfide and carry out sulfur recovery, therefore do not influence removing and reclaiming of sulfide, environmentally friendly, to not influence of discharging.
Employing pressure swing adsorption of the present utility model makes synthetic ammonia installation volume increase and method for saving energy, has realized the function of existing low-temperature rectisol desulfurization decarbonization purification device and liquid nitrogen washing deep purifying device, has avoided existing low temperature washing device for methanol and liquid nitrogen washing plant modification.Pressure-swing absorption apparatus can be produced pure hydrogen, except satisfying the needs of ammonia synthesis volume increase, can also satisfy the needs that other Chemicals are produced, so the purposes of hydrogen product is more extensive than the hydrogen nitrogen synthetic gas purposes of low-temperature rectisol and liquid nitrogen washing purification production.
The utility model and applicant's other patents or proprietary technology are used, for example low-temperature rectisol patented technology, sulfur-resisting transformation patent/proprietary technology, non-sulfur-resisting transformation proprietary technology, ammonia synthesis proprietary technology, freezing plant proprietary technology, sulfur recovery proprietary technology etc. are used, can be easy to realize the volume increase and the reducing energy consumption of whole synthetic ammonia installation, the identical production capacity new device of input ratio less investment can realize the amount of increase in production more than 50%.
The utility model method adopts transformation adsorbing and removing CO2 technology and extracts pure hydrogen technology and both can be applied in the volume increase and reducing energy consumption of existing synthetic ammonia installation, also can use above-mentioned pressure swing adsorption as the purification section of newly-built synthetic ammonia installation separately.It compared with prior art has following characteristics:
1, by adopting the utility model, can realize that the unification of sulfide removes, regenerate and recycle, do not increase the environmental emission burden, the new pollution source does not increase pollutant discharge amount yet.
2, by adopting the utility model, realize low-temperature rectisol decarburization function with transformation adsorbing and removing CO2 technology, can avoid that investment is big, flow process is complicated, layouts is compact, transforming needs the time long, the transformation of the existing low-temperature rectisol decarbonization device that transformation is difficult; Thereby the transformation of the freezing plant that the increase of also having avoided the cold requirement simultaneously causes.
3, by adopting the utility model, replace liquid nitrogen washing deep purifying function with the pure hydrogen technology generation of transformation adsorbing and extracting, can avoid the flow process complexity, arrange compactness, transformation needs the time long, transform the transformation of the existing liquid nitrogen washing deep purifying device of difficulty, can reduce simultaneously the consumption of high pressure nitrogen, improve the calorific value and the utility value thereof of tail gas.
4, by adopting the utility model, can increase production the CO2 product that the downstream post-treatment needs synchronously, purity requirement, the impurity that satisfies the CO2 product requires, pressure requires or the like.
5, by adopting the utility model, can increase production existing liquid nitrogen washing device methane stream and tail gas stream synchronously.Because adopt transformation absorption dry cleaning, therefore there is not the high pressure nitrogen loss, the tail gas calorific value is higher.
Description of drawings
Fig. 1 increases production and the schematic flow sheet of energy-conservation device low-temperature rectisol and/or liquid nitrogen washing for the utility model embodiment 1 adopts pressure swing adsorption significantly.
Fig. 2 increases production and the schematic flow sheet of energy-conservation device low-temperature rectisol and/or liquid nitrogen washing for the utility model embodiment 2 adopts pressure swing adsorptions significantly.
Fig. 3 increases production and the schematic flow sheet of energy-conservation device low-temperature rectisol and/or liquid nitrogen washing for the utility model embodiment 3 adopts pressure swing adsorptions significantly.
Embodiment
For technique means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth embodiment of the present utility model.
Embodiment 1
Present embodiment is that flow diagram is seen Fig. 1 with lurgi gasifier or volume increase of BGL stove coal generating gas synthetic ammonia installation and reducing energy consumption example.
Present embodiment is realized that by following scheme the condition of conversion gas is before transforming: flow (doing): 120975Nm3/h, and temperature: 37 ℃, pressure: 2.65MPa (A)
The above-mentioned conversion gas that comes from sulfur-resisting transformation, behind recovery of heat and condensation cooling and separating and condensing liquid, be introduced into low-temperature rectisol desulfurizer 100 and carry out desulfurization, sweet gas 110 minutes is two strands then, one 111 carries out decarburization through the laggard pressure swing adsorption decarbonization device 200 of re-heat, and another strand 112 walked former flow process and advanced low-temperature rectisol decarbonization device 300 and carry out decarburization; Decarbonization gas 210 after 200 decarburizations of pressure swing adsorption decarbonization device enters transformation absorption purified hydrogen device 400 and obtains product hydrogen 410, becomes hydrogen nitrogen synthetic gas 420 after allocating nitrogen into; Decarbonization gas 310 behind the low-temperature rectisol decarbonization device 300 enters and obtains hydrogen nitrogen synthetic gas 510 after liquid nitrogen washing device 500 purifies.Go to synthesic gas compressor 600 compression backs to form synthetic gas 700 after two strands of hydrogen nitrogen synthetic gas 420,510 mix and enter ammonia synthesis workshop section.
Low-temperature rectisol desulfurizer 100 is produced the sulfur-bearing sour gas of suitable concn, goes downstream unit to carry out sulfur recovery.Low-temperature rectisol decarbonization device 300 and pressure swing adsorption decarbonization device 200 can be produced the CO2 product gas that satisfies urea production.
The absorption of liquid nitrogen washing device 500 and transformation is carried hydrogen production device 400 and is produced the hydrogen nitrogen synthetic gas 510,420 that satisfies ammonia synthesis, isolates methane gas simultaneously and further recycles, and the methane gas of another burst recovery gas that acts as a fuel uses.The newly-increased pure hydrogen of transformation absorption purified hydrogen device 400 by-product parts also can be used for other Chemicals devices.
In the present embodiment, the low-temperature rectisol desulfurizer adopts applicant's low-temperature rectisol patented technology to carry out local flow improvement, promptly satisfies volume increase more than 50%.
Actual motion advances the about 195000Nm3/h of the utility model device conversion tolerance, and therefore actual amount of increase in production is more than 60%.
Embodiment 2
Present embodiment is to transform example with the volume increase of coal water slurry coal generating gas synthetic ammonia installation and reducing energy consumption, and flow diagram is seen accompanying drawing 2.
Present embodiment is realized that by following scheme the condition of conversion gas is before transforming: flow (doing): 152323Nm3/h, and temperature: 40 ℃, pressure: 5.58MPa (A)
The above-mentioned conversion gas that comes from sulfur-resisting transformation, behind recovery of heat and condensation cooling and separating and condensing liquid, be introduced into low-temperature rectisol desulfurizer 100 and carry out desulfurization, sweet gas 110 minutes is two strands then, one 111 carries out decarburization through the laggard pressure swing adsorption decarbonization device 200 of re-heat, and another strand 112 walked former flow process and advanced low-temperature rectisol decarbonization device 300 and carry out decarburization; Decarbonization gas 210 after 200 decarburizations of pressure swing adsorption decarbonization device enters transformation absorption purified hydrogen device 400 and obtains product hydrogen 410, becomes hydrogen nitrogen synthetic gas 420 after allocating nitrogen into; Decarbonization gas 310 behind the low-temperature rectisol decarbonization device 300 enters and obtains hydrogen nitrogen synthetic gas 510 after liquid nitrogen washing device 500 purifies.Go to synthesic gas compressor 600 compression backs to form synthetic gas 700 after two strands of hydrogen nitrogen synthetic gas 420,510 mix and enter ammonia synthesis workshop section.
The sulfur-bearing sour gas of low-temperature rectisol desulfurizer 100 production requirement concentration goes downstream unit to carry out sulfur recovery.Low-temperature rectisol decarbonization device 300 and pressure swing adsorption decarbonization device 200 can be produced the CO2 product gas that satisfies urea production.
The hydrogen nitrogen synthetic gas 510,420 that ammonia synthesis is satisfied in hydrogen production device production is carried in the absorption of liquid nitrogen washing device 500 and transformation, and the tail gas of the recovery gas that acts as a fuel uses.
In the present embodiment, the low-temperature rectisol desulfurization adopts the low-temperature rectisol patented technology of application to carry out local flow improvement, satisfies volume increase 50%.
Present embodiment just in force.Transform the about 230000Nm3/h of laggard the utility model device conversion tolerance, so amount of increase in production 50%.
Embodiment 3
Present embodiment is to be the coal generating gas example with residual oil gas making synthetic ammonia installation volume increase and reducing energy consumption, and flow diagram is seen accompanying drawing 3.
Present embodiment is realized that by following scheme the condition of conversion gas is before transforming: flow (doing): 80000Nm3/h, and temperature: 45 ℃, pressure: 5.52MPa (A)
The above-mentioned reforming gas that comes from non-catalytic partial oxidation, behind recovery of heat and condensation cooling and separating and condensing liquid, be introduced into 100 desulfurization of low-temperature rectisol desulfurizer, then through saturator and adding steam, advance CO changing device 800 CO is transformed into H2, conversion gas 810 divides two strand 811,812 behind recovery of heat and separating and condensing liquid, one 811 advances pressure swing adsorption decarbonization device 200 and carry out decarburization, and another strand 812 walked former flow process and advanced low-temperature rectisol decarbonization device 300 and carry out decarburization; Decarbonization gas 210 after 200 decarburizations of pressure swing adsorption decarbonization device enters transformation absorption purified hydrogen device 400 and obtains product hydrogen 410, becomes hydrogen nitrogen synthetic gas 420 after allocating nitrogen into; Decarbonization gas 310 behind the low-temperature rectisol decarbonization device 300 enters and obtains hydrogen nitrogen synthetic gas 510 after liquid nitrogen washing device 500 purifies.Go to synthesic gas compressor 600 compression backs to form synthetic gas 700 after two strands of hydrogen nitrogen synthetic gas 420,510 mix and enter ammonia synthesis workshop section.
Low-temperature rectisol desulfurizer 100 is produced the sulfur-bearing sour gas of suitable concn, goes downstream unit to carry out sulfur recovery.Low-temperature rectisol decarbonization device 300 and pressure swing adsorption decarbonization device 200 can be produced the CO2 product gas that satisfies urea production.
The hydrogen nitrogen synthetic gas 510,420 that ammonia synthesis is satisfied in hydrogen production device production is carried in liquid nitrogen washing device 500 and transformation absorption.Isolate methane gas simultaneously and further recycle, the tail gas of another burst recovery gas that acts as a fuel uses.
In the present embodiment, low-temperature rectisol desulfurizer 100 adopts applicant's low-temperature rectisol patented technology to carry out local flow improvement, transforms the first step volume increase 15%, transforms the second step target volume increase 30～50%
Present embodiment just in force.It is as follows to transform laggard the utility model device coal gas condition: flow (doing): 121000Nm3/h, and temperature: 45 ℃, pressure: 3.0MPa (A)
From last data as can be seen, tolerance increases more before and after volume increase and the reducing energy consumption, it is more to contain methane in the coal gas, CO2 removes load to be increased, the original design height of deep purifying duty ratio of CO and CH4, therefore adopt the utility model content increase production with reducing energy consumption be best scheme, at utmost avoid low temperature washing device for methanol and liquid nitrogen washing plant modification, also avoided the transformation of freezing plant.
Embodiment 4
Present embodiment is the variation of above embodiment, i.e. the present invention is used for the transformation of new device or existing device and adopts following configuration:
Change 1: low-temperature rectisol (or other purifying methods) is born desulfurizing function, the part decarburization function of sweet gas and the part decarburization function that low-temperature rectisol (or other purifying methods) is born sweet gas are born in the absorption of decarburization transformation, finish the final purification of decarbonization gas by liquid nitrogen washing, produce hydrogen nitrogen synthetic gas.
Change 2: low-temperature rectisol (or other purifying methods) is born desulfurizing function, low-temperature rectisol (or other purifying methods) is born the part decarburization function of sweet gas, the part decarburization function of sweet gas is born in the absorption of decarburization transformation, finish the final purification of decarbonization gas by proposing the absorption of hydrogen transformation, produce pure hydrogen or hydrogen nitrogen synthetic gas (allocating nitrogen in addition into).
Change 3: low-temperature rectisol (or other purifying methods) is born the desulfurization and decarburization function, finishes final purification by proposing the absorption of hydrogen transformation, produces pure hydrogen or hydrogen nitrogen synthetic gas (allocating nitrogen in addition into).
Claims (1)
1. adopt pressure swing adsorption that low-temperature rectisol and/or liquid nitrogen washing are increased production and energy-conservation device significantly, comprise low-temperature rectisol carbon device and liquid nitrogen washing device, described low-temperature rectisol carbon device and the series operation of liquid nitrogen washing device, the input termination sweet gas of low-temperature rectisol carbon device or conversion gas, the decarbonization gas output terminal of low-temperature rectisol carbon device is connected with the decarbonization gas input terminus of liquid nitrogen washing device, the hydrogen nitrogen synthetic gas output terminal of liquid nitrogen washing device is bonded into air compressor, it is characterized in that, also comprise pressure swing adsorption decarbonization device and transformation absorption purified hydrogen device, described pressure swing adsorption decarbonization device and the series operation of transformation absorption purified hydrogen device, the input terminus of pressure swing adsorption decarbonization device is in parallel with the input terminus of low-temperature rectisol carbon device, the decarbonization gas output terminal of pressure swing adsorption decarbonization device is connected with the decarbonization gas input terminus of transformation absorption purified hydrogen device, the hydrogen output terminal of transformation absorption purified hydrogen device is bonded into air compressor, disposes nitrogen at the hydrogen output terminal of transformation absorption purified hydrogen device and allocates mouth into.
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| CN2010206941839U CN201990479U (en) | 2010-12-30 | 2010-12-30 | Energy-saving device utilizing pressure swing adsorption technique for great production increasing of low-temperature methanol washing and/or liquid nitrogen washing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173380A (en) * | 2010-12-30 | 2011-09-07 | 上海国际化建工程咨询公司 | Method for increasing yield of rectisol and/or liquid oxygen wash greatly and saving energy through pressure swing adsorption technique and device thereof |
| CN103509609A (en) * | 2013-09-29 | 2014-01-15 | 天脊煤化工集团股份有限公司 | Gas purification process method combining suck-up purification and adsorption purification |
| CN107576373A (en) * | 2017-08-17 | 2018-01-12 | 浙江邦业科技股份有限公司 | A kind of synthesis ammonia system raw gas flow accuracy of detection judges and antidote |
-
2010
- 2010-12-30 CN CN2010206941839U patent/CN201990479U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173380A (en) * | 2010-12-30 | 2011-09-07 | 上海国际化建工程咨询公司 | Method for increasing yield of rectisol and/or liquid oxygen wash greatly and saving energy through pressure swing adsorption technique and device thereof |
| CN103509609A (en) * | 2013-09-29 | 2014-01-15 | 天脊煤化工集团股份有限公司 | Gas purification process method combining suck-up purification and adsorption purification |
| CN107576373A (en) * | 2017-08-17 | 2018-01-12 | 浙江邦业科技股份有限公司 | A kind of synthesis ammonia system raw gas flow accuracy of detection judges and antidote |
| CN107576373B (en) * | 2017-08-17 | 2020-06-30 | 浙江邦业科技股份有限公司 | Method for judging and correcting detection precision of feed gas flow of synthetic ammonia system |
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