CN105664672A - Compound liquid decarbonizing agent for removing high-concentration CO2 in gas - Google Patents
Compound liquid decarbonizing agent for removing high-concentration CO2 in gas Download PDFInfo
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- CN105664672A CN105664672A CN201610208053.1A CN201610208053A CN105664672A CN 105664672 A CN105664672 A CN 105664672A CN 201610208053 A CN201610208053 A CN 201610208053A CN 105664672 A CN105664672 A CN 105664672A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/104—Carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/204—Amines
- B01D2252/20478—Alkanolamines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Abstract
The invention discloses a compound liquid decarbonizing agent for removing high-concentration CO2 in gas. The compound liquid decarbonizing agent is prepared from the following raw materials in percentage by weight: 40%-45% of an absorbent, 0.3%-10% of an activating agent, 0.01%-0.2% of a de-foaming agent, 1%-6% of a pH corrosion inhibitor and the balance of water. After being dissolved into the water, the raw materials are uniformly mixed to obtain the compound liquid decarbonizing agent; the absorbent is MDEA (methyldiethanolamine); the activating gent is monoethanolamine, diethanolamine, triethanolamine, piperazine, aminoethyl piperazine and N-ethoxylpiperazine; the de-foaming agent is siloxane; and the pH corrosion inhibitor is AMP-95, Advantex, AEPDTM VOX 1000, ethylene glycol monoethyl ether, a sodium borate/boric acid corrosion inhibitor or a Na2CO3/NaHCO3 corrosion inhibitor. The decarbonizing agent is mainly used for removing high-concentration CO2 in natural gas, coal gas, marsh gas, shale gas, refinery gas and other industrial waste gas, and the content of CO2 in the gas can be reduced to be lower than 0.5%.
Description
Technical field
The present invention relates to a kind of for removing gas middle and high concentration CO2Composite liquid decarburizer, it is specifically related to a kind of composite liquid decarburizer containing N methyldiethanol amine (MDEA), activator and pH corrosion inhibiter, is mainly used in the CO of the gas middle and high concentrations such as elimination natural gas, coal bed gas, refinery gas, shale gas and biogas2, belong to field of gas purification.
Background technology
The industrial revolution has promoted the high speed development of the mankind, also exacerbates simultaneously and the Fossil fuels such as coal, oil, natural gas, shale gas are made consumption, cause CO2Discharge capacity increases year by year, the CO in air2Concentration sustainable growth so that carbon in atmosphere circulation is unbalance, and greenhouse effect is severe year by year. According to U.S.'s Earth System Research Laboratory data, CO in air in 20132Content is 395.11ppm, CO in air in 20142Content is 397.13ppm. CO produced by this research prediction mankind's activity2Discharge capacity will rise to 95,000,000,000 tons in 2100 from 27,100,000,000 tons of 1997. Therefore, CO is reduced2Discharge capacity will be directly connected to the sustainable development of human society, how control CO efficiently2Discharge have become as restriction human social development critical problem.
Reduce CO2It is imperative to discharge, but as today of high speed development, Fossil fuel oil, coal can not be stopped using again as the energy of main flow, and this allows for us and finds the high the energy-----natural gas of a kind of relatively clean methane content, coal bed gas, biogas etc. Natural gas hydrogen-carbon ratio is high, discharge CO2The advantage few with amount of pollutant, can make outstanding contributions to the greenhouse effect and atmospheric pollution alleviating the earth. Natural gas with it efficiently, high-quality, cleaning etc. be better than the advantage of coal and oil and occupy increasingly consequence in primary energy consumption structure.
Natural gas proportion in China's energy resource structure is far smaller than its ratio in world's iea, and coal is more than half in China's energy resource structure consumption accounting. For the environmental problem that reply coal in use brings, in recent years China is devoted to change the current single performance source structure relying on coal to be master, formed main based on coal, other energy are auxiliary energy consumption structure, and continuing to increase the exploitation to other energy, natural gas will have increasing development space in China.Within 2014, China reaches an agreement on the natural gas supply that Russia has signed total value 400,000,000,000 dollars, and this will advance Natural Gas In China industrial expansion significantly, consolidate natural gas status in China's resident's combustion gas further, is conducive to accelerating city development of clean energy.
Natural gas be mainly composed of alkane, general possibly together with H in addition2S、CO2, organic sulfur, N2, aqueous vapor and trace noble gas. CO in natural gas2、H2S and organic sulfur are commonly called acid gas components, and acid gas components not only reduces natural gas quality and calorific value, also can increase cost of transportation, make catalyst poisoning, corroding metal equipment etc. CO2、H2The corrosion of metallic conduit is a kind of spontaneous process by the sour gas such as S, and under high temperature, condition of high voltage, pipeline is long-time, and corrosive medium contacts with sour gas etc., very easily makes wall erosion thinning and line fracture, results even in heavy losses. Therefore, natural gas just can carry out after must removing acidic components carrying and using
CO in 19992Volumetric concentration standard≤3.0%, in the new technique index after 2013, CO in a class natural gas2Volumetric concentration is≤2.0%, in after 2015 in the natural gas technical specification of oil, and CO in a class natural gas2Volumetric concentration is likely≤0.5%, it can be seen that acid gas content in natural gas purification gas is required to lower gradually by country, namely requires more harsh to natural gas purification degree, and this is just in the urgent need to finding a kind of efficient natural gas elimination CO2Purifying solvent.
For adapting to new national natural gas purification standard, the solvent studying a kind of efficient natural gas emergence work is just particularly important. Although all kinds of alkanolamines are absorbing CO2Aspect has respective advantage, all there is the problems such as corrosivity foaming rotten, easy strong, degradable, regeneration energy consumption height in the hydramine such as MEA, the DEA such as current industrial main use, also can to environment, use MDEA decarbonization solvent with the shortcoming that can overcome above-mentioned primary amine and secondary amine, but the tertiary amine character of MDEA causes itself and CO2Reaction rate slow, carbon holds and is relatively low.
Summary of the invention
The technical problem to be solved is for the deficiencies in the prior art, and provides a kind of for removing gas middle and high concentration CO2Composite liquid decarburizer, containing absorbent N methyldiethanol amine (MDEA), activator and pH corrosion inhibiter, there is high CO2The choosing of gas is inhaled and fast energy-absorbing power, can by the CO in gas2It is removed to less than 0.5%; This composite liquid decarburizer has efficiently, it is little to pollute, stable in properties, sour gas load are high, not degradable, can, advantage that regeneration energy consumption low compatible with conventional MDEA decarbonization solvent.
The present invention also provides for the application of a kind of above-mentioned composite liquid decarburizer, is mainly used in elimination natural gas, coal gas, biogas, shale gas, refinery gas and contains a large amount of CO2The CO of the gas middle and high concentration such as industrial waste gas2。
To achieve these goals, the present invention adopts the following technical scheme that
One is used for removing gas middle and high concentration CO2Composite liquid decarburizer, raw material including following percentage by weight: the water of absorbent 40-45%, activator 0.3-10%, defoamer 0.01-0.2%, pH corrosion inhibiter 1-6% and surplus, after absorbent, activator, defoamer, pH corrosion inhibiter are dissolved in water, stir and obtain described liquid complex;
Described absorbent is N methyldiethanol amine (MDEA), and molecular weight is 119.16;
Described activator is any one in primary amine compound, secondary-amine compound, heterocyclic amine compound, alcamine compound, alcohol ether compound, or two kinds and the above mixture mixed with arbitrary proportion;
Described defoamer is siloxanes;
Described pH corrosion inhibiter is any one or two kinds of mixture mixed with arbitrary proportion in organic pH corrosion inhibiter, inorganic pH corrosion inhibiter.
In technique scheme, described activator is preferably any one in monoethanolamine, diethanolamine, triethanolamine, piperazine, aminoethyl piperazine, N-hydroxyethyl piperazine or two kinds and the above mixture mixed with arbitrary proportion.
In technique scheme, described defoamer is preferably any one in methyl-silicone oil, ethyl silicon oil, phenyl silicone oil, methyl phenyl silicone oil or MethylethoxylsiliconFluid Fluid or two kinds and the above mixture mixed with arbitrary proportion.
In technique scheme, described organic pH corrosion inhibiter is preferably: 2-amino-2-methyl-1-propanol (AMP-95), butylethanolamine (Advantex Ai Wangde), APED (AEPDTMVOX1000) any one, in ethylene glycol monoethyl ether, or two kinds and the above mixture mixed with arbitrary proportion; Described inorganic pH corrosion inhibiter is sodium borate/boric acid corrosion inhibiter, Na2CO3/NaHCO3Any one or two kinds of mixture mixed with arbitrary proportion in corrosion inhibiter.
The present invention also provides for the application of a kind of above-mentioned composite liquid decarburizer, is mainly used in the CO of elimination unstrpped gas middle and high concentration2, described unstrpped gas be natural gas, coal gas, biogas, shale gas, refinery gas and other contain a large amount of CO2Industrial waste gas.
In technique scheme, it is used for removing high concentration CO2Time, described liquid complex and described unstrpped gas are passed in traditional desulfurization and decarburization device, carries out de-CO when normal pressure 7.0MPa2, CO in liquid complex and unstrpped gas2Volume ratio be 100:1-8, CO in liquid complex and unstrpped gas2Weight ratio be 100:0.5-7.0, the gas liquid ratio of liquid complex and unstrpped gas is 1m3: 500-1000m3。
The advantage of technical solution of the present invention is in that, this composite liquid decarburizer contains absorbent N methyldiethanol amine, activator and pH corrosion inhibiter, has high CO2The choosing of gas is inhaled and fast energy-absorbing power, can by the CO in gas2It is removed to less than 0.5%; This composite liquid decarburizer has efficiently, it is little to pollute, stable in properties, sour gas load are high, not degradable, can, advantage that regeneration energy consumption low compatible with conventional MDEA decarbonization solvent.
Accompanying drawing explanation
Fig. 1: the composite liquid decarburizer of the embodiment of the present invention 1 preparation is used for removing unstrpped gas middle and high concentration CO2Time flow chart;
Fig. 2: the composite liquid decarburizer of the embodiment of the present invention 2 preparation is used for removing unstrpped gas middle and high concentration CO2Time flow chart;
Detailed description of the invention
Hereinafter the detailed description of the invention of technical solution of the present invention is described in detail, but the present invention is not limited to description below:
Test device used in the embodiment of the present invention 1 is high pressure CO2Elimination pilot plant test device, for device commonly used in the art, as it is shown in figure 1, this device includes pressurizing absorption tower, normal pressure regenerator, fluid under pressure pump and gas booster pump, wherein:
Absorption tower caliber: Ф 30mm, uses height: 1000mm; Upper lower interface adopts Flange joint, adopts rustless steel and ceramic packing. Design pressure: normal pressure-10Mpa, design temperature: 10-100 DEG C; Volume: 1.5L, air inlet, discharge gate go out has pressure and temperature to show, mixes liquid spray flux: 0.36-0.50L/h, shows containing digital liquid level;
Regenerator caliber: Ф 50mm, uses height: 1000mm, adopts rustless steel and ceramic packing; Design pressure: 0.1Mpa, design temperature: 50-200 DEG C, volume: 3L; Air inlet, discharge gate are provided with heated for controlling temperature system, show containing digital liquid level; Mixing liquid spray flux: 0.36-0.50L/h;
Flash vessel caliber: Ф 50mm is high: 200mm, design temperature: 100 DEG C; Use temperature: 60 DEG C; Relief valve is installed at top; It is provided with preheater, containing heated for controlling temperature system;
High pressure constant-flux pump is installed, flow: 0.01-0.6L/h is adjustable; Power supply 220V; 50Hz; Normal-pressure liquid plunger displacement pump, flow: 0.01-0.6L/h is adjustable; Power supply 220V; 50Hz; Gas boosting pump, flow: 108-360L/h is adjustable; Power supply 220V; 50Hz;
Meanwhile, gas buffer tank volume 10L is installed; Being provided with mass flowmenter, 600ml amine liquid fluid reservoir, temperature transducer Pt100, intelligent temperature controller, AI518G controls solid-state output, power supply 220V, 50Hz etc.
Composite liquid decarburizer described in the embodiment of the present invention 1 is loaded in fluid reservoir, after air cooler and cooler, high-pressure pump pumps into the top of Gas-Liquid Absorption tower, with reacting gas counter current contacting by the CO in gas in absorption tower2And H2S absorbs, and controls temperature at 40 DEG C-60 DEG C, absorbs CO in ceramic packing absorption tower2And H2The rich solution of S flows into flash column, resolves part CO2And H2After S, after heat exchange, pump into regenerator, control regenerator temperature at 105 DEG C-126 DEG C. Lean solution after regeneration flows back to reservoir after heat exchange and continues to pump into absorption tower recycling, CO after being absorbed in absorption tower2And H2The purge gas of S, by emptying after condensing the decarbonizing liquid that recovery is carried secretly. By sample point sample analysis rich solution CO bottom absorption tower2Content, regenerator is lean solution reservoir sample tap sample analysis lean solution CO out2Content. And calculate decarbonizing liquid regeneration rate. The CO in the gas of absorption tower is passed in and out by gas chromatographic analysis2And H2S content, calculates removal efficiency. Flow chart is as shown in Figure 1.
The test device that the embodiment of the present invention 2 and 3 uses is pilot scale pressurization decarbonizing liquid performance testing device, for device commonly used in the art, the decarburization and the desulfurization (including organic sulfur) that are based on sulfone amine method and hydramine method remove pilot-plant, design pressure 10.0Mpa, maximum throughput 1.0 × 104m3/ d; Being made up of unstripped gas desulfurization, decarburization and regeneration of waste liquor, acid gas cooling, solution preparation and addition system, auxiliary production facility and public work are provided by assay device place purification plant, as shown in Figure 2:
Absorption tower: the operation principle on absorption tower is that carbonated natural gas enters from bottom to top from bottom, with top-down solution counter current contacting, the CO in absorption gas2And H2S, is purge gas from tower top gas out; Absorption tower is packed tower, and the good granular pattern filler of mass-transfer performance selected by its filler, and adopting specification is that 25 × 20 × 0.6 rustless steel rectangular saddle ring huddles; Absorption tower filler height overall 9.0m, filler is divided into three sections (4.0,6.5,9.0), to determine the best feed entrance point under different makings and different solutions requirement;
Regenerator: regenerator is also packed tower, and its internal structure is identical with absorption tower, regenerator filler height overall 9.0m, being divided into stripping section and rectifying section, stripping section packed height is 1.0m, due to the requirement of filler filling height, rectifying section is divided into 2 sections, therefore regenerator filler is divided into three sections; Regenerator is packed tower, filling in towerRustless steel rectangular saddle ring;
Device implant: as shown in table 1:
Table 1. device implant catalog
Below in conjunction with specific embodiment the present invention will be further explained illustrate:
Embodiment 1:
A kind of composite liquid decarburizer, including the raw material of following percentage by weight: N methyldiethanol amine 45%, water 50%, defoamer (methyl-silicone oil) 0.1%, pH corrosion inhibiter 1.9% (butylethanolamine and Na2CO3/NaHCO3Weight ratio 4:1, activator 3% (piperazine and diethanolamine DEA weight ratio 1:1), after each raw material is dissolved in water, stirs and obtain described composite liquid decarburizer, being labeled as CCJ-1# decarburizer.
Testing experiment: CCJ-1# decarburizer embodiment 1 obtained is used for elimination containing high concentration CO2, 40 DEG C, normal pressure-70Mpa, CCJ-1# desulfurizing agent volume 500ml, gas liquid ratio: 1:300 (m3: m3) when utilize device described in Fig. 1 and flow process elimination gas in CO2, CH in gas490%, CO23.8%, H2S5%, all the other be N2; This embodiment have studied the decarburization effect of CCJ-1# decarburizer under different technical parameters, and result is as shown in table 2:
Table 2.CCJ-1# decarburizer decarbonization, desulfuration efficiency under different technical parameters
As shown in Table 2, decarburizer of the present invention, CO2 removal efficiency is more than 99%, and H2S removal efficiency more than 99.99%.
Embodiment 2:
A kind of composite liquid decarburizer, raw material including following percentage by weight: N methyldiethanol amine 40%, water 50%, activator (the weight ratio 3:1 of aminoethyl piperazine and monoethanolamine MEA) 6.0%, pH corrosion inhibiter 3.9% (2-amino-2-ethyl-1, ammediol, ethylene glycol monoethyl ether, sodium borate/boric acid weight ratio 5:1, defoamer methyl-silicone oil 0.1%; After each raw material is dissolved in water, stirs and obtain described composite liquid desulfurizing agent, being labeled as CCJ-2# decarburizer.
Testing experiment: CCJ-2# decarburizer embodiment 2 obtained is used for removing high-carbon high-sulfur natural gas, at 40 DEG C, 3.8-7.0Mpa, CCJ-2# decarburizer volume 5m3, gas liquid ratio: 1:190-300 (m3: m3) when utilize device described in Fig. 2 and flow process elimination high-carbon high-sulfur natural gas in CO2And sulfur, CH in high-carbon high-sulfur natural gas490%, CO23.8-4.0%, H2S concentration 5.7%, organic sulfur 371.48mg/m3, all the other be alkane and N2; This embodiment have studied the decarburization effect of CCJ-2# decarburizer under different technical parameters, and result is as shown in table 3:
Table 3.CCJ-2# decarburizer decarbonization, desulfuration efficiency under different technical parameters
As shown in Table 3, decarburizer of the present invention, CO2Removal efficiency is more than 99%, desulfurization degree more than 99.99%, and organic sulfur removal rate is also up to more than 90%.
Embodiment 3
Investigated the regenerability of the CCJ-2# decarburizer that embodiment 2 obtains, decarbonizing liquid be regenerated by flash column and regenerator carries out, the part CO in decarbonizing liquid after flash column reduces pressure2And H2S is resolved, and last decarbonizing liquid enters back into regenerator, and in regenerator, decarbonizing liquid is heated, then remaining in decarbonizing liquid CO2And H2S is precipitated out in decarbonizing liquid by all solutions. It was found that regeneration temperature reaches after more than 110 DEG C, its CO2And H2The regeneration rate of S is all more than 95%, and result is shown in Table 4, and illustrates that the elimination high concentration CO 2 formula not only removal efficiency of the present invention is high, and regenerability is good, and sour gas load is relatively larger.
H in table 4.CCJ-2# decarburization lean (richness) liquid2S and CO2Content
As shown in Table 5, decarburizer of the present invention, not only removal efficiency is high, and regenerability is good, and sour gas load is big.
Examples detailed above simply for technology design and the technical characterstic of the present invention are described, can not limit the scope of the invention with this.All equivalent transformations done according to the essence of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (10)
1. one kind is used for removing gas middle and high concentration CO2Composite liquid decarburizer, it is characterized in that, raw material including following percentage by weight: the water of absorbent 40-45%, activator 0.3-10%, defoamer 0.01-0.2%, pH corrosion inhibiter 1-6% and surplus, after absorbent, activator, defoamer, pH corrosion inhibiter are dissolved in water, stir and obtain described composite liquid decarburizer.
2. composite liquid decarburizer according to claim 1, it is characterised in that described absorbent is N methyldiethanol amine.
3. composite liquid decarburizer according to claim 1, it is characterized in that, described activator is any one in primary amine compound, secondary-amine compound, heterocyclic amine compound, alcamine compound, alcohol ether compound, or two kinds and the above mixture mixed with arbitrary proportion.
4. composite liquid decarburizer according to claim 3, it is characterized in that, described activator is any one in monoethanolamine, diethanolamine, triethanolamine, piperazine, aminoethyl piperazine, N-hydroxyethyl piperazine, or two kinds and the above mixture mixed with arbitrary proportion.
5. composite liquid decarburizer according to claim 1, it is characterised in that described defoamer is siloxanes.
6. composite liquid decarburizer according to claim 5, it is characterized in that, described defoamer is any one in methyl-silicone oil, ethyl silicon oil, phenyl silicone oil, methyl phenyl silicone oil or MethylethoxylsiliconFluid Fluid, or two kinds and the above mixture mixed with arbitrary proportion.
7. composite liquid decarburizer according to claim 1, it is characterised in that described pH corrosion inhibiter is any one or two kinds of mixture mixed with arbitrary proportion in organic pH corrosion inhibiter, inorganic pH corrosion inhibiter.
8. composite liquid decarburizer according to claim 7, it is characterized in that, described organic pH corrosion inhibiter is 2-amino-2-methyl-1-propanol, butylethanolamine, 2-amino-2-ethyl-1, any one in ammediol, ethylene glycol monoethyl ether, or two kinds and the above mixture mixed with arbitrary proportion; Described inorganic pH corrosion inhibiter is sodium borate/boric acid corrosion inhibiter, Na2CO3/NaHCO3Any one or two kinds of mixture mixed with arbitrary proportion in corrosion inhibiter.
9. the application of composite liquid decarburizer described in a claim 1, it is characterised in that be mainly used in the CO of elimination unstrpped gas middle and high concentration2, described unstrpped gas be natural gas, coal gas, biogas, shale gas, refinery gas and other contain a large amount of CO2Industrial waste gas.
10. application according to claim 9, it is characterised in that be used for removing high concentration CO2Time, described liquid complex and described unstrpped gas are passed in traditional desulfurization and decarburization device, carries out de-CO when normal pressure to 7.0MPa scope2, CO in liquid complex and unstrpped gas2Volume ratio be 100:1-8, CO in liquid complex and unstrpped gas2Weight ratio be 100:0.5-7.0, the gas liquid ratio of liquid complex and unstrpped gas is 1m3: 500-1000m3。
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| CN108568190A (en) * | 2017-03-07 | 2018-09-25 | 北京国环清华环境工程设计研究院有限公司 | One kind is used for while removing CO in biogas2And H2The activated form efficient absorption liquid of S |
| CN108722115A (en) * | 2017-04-18 | 2018-11-02 | 中国石油化工股份有限公司 | One kind removing CO from gaseous mixture2Special absorptive liquid |
| CN109420409A (en) * | 2017-08-22 | 2019-03-05 | 中国石油化工股份有限公司 | It is selectively removed from air-flow containing H2S and CO2Sour gas absorbent and method |
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| CN112143536A (en) * | 2019-06-27 | 2020-12-29 | 中石化南京化工研究院有限公司 | Absorption liquid for corrosion prevention of decarburization system in natural gas |
| CN113134282A (en) * | 2021-05-10 | 2021-07-20 | 重庆丰淼生态环境科技有限责任公司 | Flue gas decarbonizing agent |
| CN113528206A (en) * | 2020-04-13 | 2021-10-22 | 中国石油天然气股份有限公司 | Desulfurization system and method |
| CN114163205A (en) * | 2021-12-02 | 2022-03-11 | 山东汉博昱洲新材料有限公司 | Steel slag-based carbonized material and preparation method and application thereof |
| CN116550118A (en) * | 2023-07-09 | 2023-08-08 | 浙江百能科技有限公司 | Integrated separation device and method for activating absorption crystallization |
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