WO2016208814A1 - Absorbant de gaz acide et composition permettant d'absorber un gaz acide le comprenant - Google Patents

Absorbant de gaz acide et composition permettant d'absorber un gaz acide le comprenant Download PDF

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Publication number
WO2016208814A1
WO2016208814A1 PCT/KR2015/009628 KR2015009628W WO2016208814A1 WO 2016208814 A1 WO2016208814 A1 WO 2016208814A1 KR 2015009628 W KR2015009628 W KR 2015009628W WO 2016208814 A1 WO2016208814 A1 WO 2016208814A1
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Prior art keywords
acid gas
formula
carbon dioxide
composition
weight
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English (en)
Korean (ko)
Inventor
천성남
이정빈
김준한
엄용석
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Korea Electric Power Corp
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Korea Electric Power Corp
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Priority to CN201580080638.3A priority Critical patent/CN107666951B/zh
Publication of WO2016208814A1 publication Critical patent/WO2016208814A1/fr
Anticipated expiration legal-status Critical
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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
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/262—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
    • C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
    • C08L71/12—Polyphenylene oxides
    • 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
    • B01D2252/202—Alcohols or their derivatives
    • B01D2252/2023—Glycols, diols or their derivatives
    • B01D2252/2025—Ethers or esters of alkylene glycols, e.g. ethylene or propylene carbonate
    • 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
    • B01D2252/202—Alcohols or their derivatives
    • B01D2252/2023—Glycols, diols or their derivatives
    • B01D2252/2026—Polyethylene glycol, ethers or esters thereof, e.g. Selexol
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals

Definitions

  • the present invention relates to an acid gas absorption composition and an acid gas absorption composition comprising the same.
  • Gasification technology converts solid fuel such as coal into syngas, and generically refers to a technique using energy, syngas and other chemicals generated in the conversion process.
  • Such gasification technologies typically include gasification combined cycle technology, synthetic natural gas production technology and the like.
  • Integrated Gasification Combined Cycle (IGCC) technology converts fossil fuel into syngas with carbon monoxide as its main component and refines it for combined power generation.
  • the method of producing electricity through gasification combined cycle power generation is more energy efficient than conventional coal-fired coal-fired power generation, has the advantage of excellent economic efficiency.
  • Synthetic Natural Gas (SNG) manufacturing technology produces fossil fuel gas at high temperature and high pressure, and then purifies and methane synthesizes the same gas as natural gas.
  • gasification combined cycle technology and synthetic natural gas production technology has the greatest advantage in that the energy efficiency is excellent while reducing the amount of carbon dioxide generated during the use of fossil fuel.
  • CO2 capture and storage technology can capture carbon dioxide from the source, compress it for storage, or convert it into a useful material.
  • the gasification combined cycle may recover the acid gas generated during power generation in a pre-combustion capture step, a pure oxygen combustion capture step, and a post-combustion capture step.
  • an acidic gas absorber by using an acidic gas absorber, carbon dioxide emissions can be significantly reduced.
  • Conventional acid gas absorbents are known as DMPEG (Dimethyl Ether Polyethylene Glycol) in the Selexol process, methanol in the Rectisol process, or NMP (N-Methyl-2-Pyrrolidone) in the Purisol process.
  • DMPEG Dimethyl Ether Polyethylene Glycol
  • methanol in the Rectisol process
  • NMP N-Methyl-2-Pyrrolidone
  • the conventional acid gas absorbent has a high viscosity, a high energy consumption during the process application, difficult processing of the chemical reaction result, and has a disadvantage of low economic efficiency.
  • the acid gas absorbent should be excellent in acid gas recovery capacity, storage stability and economic efficiency for commercialization. Therefore, there is an increasing demand for an acid gas absorbent that simultaneously satisfies all of these characteristics.
  • One object of the present invention is to provide an acid gas absorbent which is particularly excellent in carbon dioxide absorption capacity, excellent carbon dioxide capture rate, excellent binding stability with carbon dioxide, low viscosity, low energy consumption for circulation.
  • Another object of the present invention is excellent production efficiency, economical efficiency, can improve the energy efficiency of gasification combined cycle power generation, can reduce the power cost of the acid gas collection process, can use the wet process and physical reaction It is to provide a composition for acid gas absorption.
  • One embodiment of the present invention relates to an acid gas absorbent comprising triacetin represented by the following formula (1) and polyethylene glycol represented by the following formula (2).
  • R1 and R2 are each independently hydrogen or a methyl group, n is an integer of 2 to 9.
  • the content of triacetin represented by Formula 1 may be about 5% to about 50% by weight of the total acid gas absorbent.
  • the content of polyethylene glycol represented by Chemical Formula 2 may be about 50% by weight to about 95% by weight of the total acid gas absorbent.
  • the weight ratio of triacetin represented by Formula 1 to polyethylene glycol represented by Formula 2 may be about 1: 1.3 to about 1:18.
  • the weight average molecular weight of the polyethylene glycol represented by Formula 2 may be about 150g / mol to about 550g / mol.
  • Another embodiment of the present invention relates to an acid gas absorbent composition
  • an acid gas absorbent composition comprising about 95% to about 99% by weight of the acidic gas absorbent described above and about 1% to about 5% by weight of distilled water.
  • the acid gas absorbent composition further includes an antifoaming agent, and the amount of the antifoaming agent may be about 1 part by weight to about 5 parts by weight based on 100 parts by weight of the acidic gas absorbent.
  • the antifoaming agent may be at least one selected from the group consisting of oleyl alcohol, amino silicone, dimethyl silicone, and polydimethylsiloxane.
  • the acid gas absorption composition may satisfy all of the following Formulas 1 to 3.
  • S1 to S3 is carbon dioxide solubility for each measurement temperature of the acid gas absorption composition, the measurement temperature of S1 is -20 °C, the measurement temperature of S2 is 0 °C, the measurement temperature of S3 is 20 °C.
  • the acid gas absorption composition may satisfy all of the following Equations 4 to 6.
  • V10 means a viscosity at 10 ° C
  • V20 is a viscosity at 20 ° C
  • V30 is a viscosity at 30 ° C.
  • the acid gas absorption composition may be a wet carbon dioxide absorption composition.
  • Embodiments of the present invention has excellent carbon dioxide absorption capacity, excellent capture rate of carbon dioxide, excellent binding stability with carbon dioxide, low viscosity, low energy consumption for circulating amount, excellent economy, energy of gasification combined cycle power generation It is possible to improve the efficiency, to reduce the power cost of the acid gas collection process, it is possible to provide a composition for absorbing acid gas and a method of manufacturing the same that can use a wet process and physical reaction.
  • Figure 1 is a schematic diagram showing the process simulation conditions for the evaluation of energy usage in the physical property evaluation method.
  • One embodiment of the present invention relates to an acid gas absorbent comprising triacetin represented by Chemical Formula 1 and polyethylene glycol represented by Chemical Formula 2.
  • R1 and R2 are each independently hydrogen or a methyl group, n is an integer of 2 to 9.
  • Such acid gas absorbents have excellent carbon dioxide absorption ability, excellent capture rate of carbon dioxide, and excellent binding stability with carbon dioxide.
  • it is possible to lower the viscosity can reduce the energy consumption for the circulation amount.
  • the acid gas absorbent is very economical because the compounds of the formula (1) and formula (2) used as a raw material is excellent in industrial availability and convenient supply and demand.
  • the acid gas may refer to any one of CO 2 , H 2 S, SO 2 , NO 2, and COS that may occur when syngas is produced in a gasification technique.
  • the acid gas absorbent is particularly excellent in carbon dioxide absorption, it can be used as a carbon dioxide absorbent in the acid gas capture process before combustion of gasification combined cycle power generation.
  • Triacetin represented by Formula 1 may have an interaction energy (single molecule binding energy) with carbon dioxide of about 35 kcal / mol to about 37 kcal / mol.
  • the acid gas absorbent can further improve the carbon dioxide solubility and carbon dioxide solubility of the acid gas absorbent composition, and the ability to use as a physical absorbent can be further improved.
  • the circulation amount of the absorbent used in the acid gas collection process can be reduced, so that the energy efficiency can be improved and the process power cost can be reduced.
  • the content of triacetin represented by Formula 1 may be about 5% to about 50% by weight of the total acid gas absorbent.
  • the carbon dioxide absorption of the acid gas absorbent can be further improved.
  • it is excellent in compatibility with the polyethylene glycol used together, it is possible to further improve the storage stability after carbon dioxide recovery.
  • the triacetin content may be about 5% to about 40%, about 10% to about 40%, or about 15% to about 35% by weight of the total acid gas absorbent.
  • the acid gas absorbent may be compatible with carbon dioxide absorbing power and storage stability to a more excellent level.
  • R1 and R2 may each be hydrogen or a methyl group, n may be an integer of 2 to 9, and a weight average molecular weight may be about 150 g / mol to about 550 g / mol. In this case, it is excellent in compatibility with the triacetin described above can further improve the storage stability after carbon dioxide recovery.
  • the weight average molecular weight of polyethylene glycol may be about 200g / mol to about 400g / mol or about 250g / mol to about 350g / mol.
  • the acid gas absorbent is excellent in stability and is advantageous for use in large-capacity industrial equipment, and when used as a composition for absorbing wet acid gas, the viscosity can be further lowered.
  • the content of polyethylene glycol represented by Chemical Formula 2 may be about 50% by weight to about 95% by weight of the total acid gas absorbent. In this case, the compatibility of the carbon dioxide absorption of the acid gas absorbent and the respective components of the absorbent can be further improved.
  • the content of polyethylene glycol is about 55% to about 95%, about 60% to about 95%, about 65% to about 95%, about 65% to about 90% by weight of the total acid gas absorbent Weight percent or from about 65 weight percent to about 85 weight percent.
  • the acid gas absorbent may be compatible with carbon dioxide absorption ability and carbon dioxide storage stability to a more excellent level.
  • the weight ratio of triacetin represented by Formula 1 to polyethylene glycol represented by Formula 2 may be about 1: 1.3 to about 1:18. In this case, the compatibility of the carbon dioxide absorption of the acid gas absorbent and the respective components of the absorbent can be further improved.
  • the weight ratio of triacetin represented by Formula 1 to polyethylene glycol represented by Formula 2 is about 1: 1.4 to about 1: 8.5, about 1: 1.5 to about 1: 7 or about 1: 2 to about 1 May be:
  • the acid gas absorbent may be compatible with carbon dioxide absorption ability and carbon dioxide storage stability to a more excellent level.
  • the acid gas absorbent composition of one embodiment may include about 95 wt% to about 100 wt% of the acid gas absorbent described above, and may be used by further adding about 0 wt% to about 5 wt% of distilled water.
  • the acid gas absorbent composition may include about 95 wt% to about 99 wt% of the acid gas absorbent described above, and distilled water may include about 1 wt% to about 5 wt% of the acid gas absorbent composition.
  • the composition for acid gas absorption can implement a low viscosity, and at the same time lower the vapor pressure at room temperature (20 °C ⁇ 25 °C). This can reduce the loss of absorbent in the process, minimize the amount of supplemental absorbent, and reduce the circulation of the absorbent.
  • the acid gas absorption composition may further include an antifoaming agent.
  • an antifoaming agent In this case, bubble generation in the case where the acidic gas absorbent is used as the wet acid gas absorption composition can be reduced.
  • the content of the antifoaming agent may be about 1 part by weight to about 5 parts by weight based on 100 parts by weight of the total acid gas absorbent.
  • the content of the antifoaming agent may be about 1 part by weight to about 5 parts by weight based on 100 parts by weight of the total acid gas absorbent.
  • the content of the antifoaming agent may be about 1 part by weight to about 4 parts by weight or about 1 part by weight to about 3 parts by weight based on 100 parts by weight of the total acid gas absorbent. Within this range, compatibility between the components of the acid gas absorbent composition may be further improved.
  • the antifoaming agent may be used, for example, one or more selected from the group consisting of oleyl alcohol, amino silicone, dimethyl silicone and polydimethylsiloxane. Such antifoaming agents may be used alone or in combination of two or more thereof, as necessary.
  • the acid gas absorption composition may satisfy all of the following Formulas 1 to 3.
  • S1 to S3 is carbon dioxide solubility for each measurement temperature of the acid gas absorption composition, the measurement temperature of S1 is -20 °C, the measurement temperature of S2 is 0 °C, the measurement temperature of S3 is 20 °C.
  • the specific method of measuring carbon dioxide solubility is performed as described in the Examples below.
  • the acid gas absorption composition not only has excellent solubility of carbon dioxide at low temperature (-20 ° C), but also has excellent solubility of carbon dioxide at 0 ° C and room temperature (20 ° C), so that the temperature control energy of the acid gas collection process can be improved. It can lower and further improve the collection efficiency.
  • the acid gas absorption composition may satisfy all of the following Equations 4 to 6.
  • V10 means a viscosity at 10 ° C
  • V20 is a viscosity at 20 ° C
  • V30 is a viscosity at 30 ° C.
  • the acid gas absorption composition can maintain the viscosity in a range suitable for industrial use.
  • the composition for acid gas absorption can reduce the energy consumption for the circulation amount while reducing the process circulation amount, and at the same time can reduce the power cost of the process.
  • the acid gas absorption composition may be a wet carbon dioxide absorption composition.
  • the wet carbon dioxide absorption composition may be used, for example, in an acid gas collection process before combustion of gasification combined cycle power generation. In this case, the carbon dioxide capture efficiency and carbon dioxide emission reduction effect is more excellent.
  • Triacetin of Formula 1 and polyethylene glycol of Formula 2 having a weight average molecular weight of 250 g / mol were mixed according to the composition shown in Table 1 below to prepare an acid gas absorbent. Distilled water was added to the acid gas absorbent prepared as described in Table 1, followed by stirring to prepare an acid gas absorbent composition having a total volume of 1L.
  • composition shown in Table 1 acidic in the same manner as in Example 1 except for changing the polyethylene glycol of the formula (2) having a weight average molecular weight of 250 g / mol to polyethylene glycol of the formula (2) having a weight average molecular weight of 280 g / mol
  • a gas absorption composition was prepared.
  • Triacetin content (% by weight) Polyethylene glycol content (% by weight) Distilled water content (% by weight) Weight average molecular weight of polyethylene glycol (g / mol)
  • Example 1 5 90 5 250
  • Example 2 10 85 5 250
  • Example 4 30 65 5 250
  • Example 5 40 55 5 250
  • Example 6 20 75 5 280
  • Example 7 20 75 5 350
  • Example 8 20 75 5 400 Comparative Example 1 0 100 (DMPEG) 0 250 Comparative Example 2 0 95 5 250 Comparative Example 3 100 0 0 -
  • Carbon dioxide solubility at 30 bar by using an absorber capable of treating 1 L / min of simulated gas (CO 2 + N 2 ) with respect to the acid gas absorption compositions prepared in Examples 1 to 8 and Comparative Examples 1 to 3 was measured.
  • the pressure in the absorber was adjusted by installing a back pressure regulator at the rear end of the absorber.
  • the simulated gas (CO 2 + N 2 ) was fed into the absorber containing a certain amount of the absorbent composition at a constant temperature and pressure using a chiller and a pressurizing device, and the carbon dioxide was absorbed at each measured temperature and pressure.
  • the concentration of carbon dioxide in the water absorbed and discharged was measured using a carbon dioxide concentration analyzer, and the change in the flow rate caused by the carbon dioxide absorption was measured by the flow rate and carbon dioxide concentration supplied to the absorber and the carbon dioxide concentration measured at the rear end. Calculated.
  • the amount of carbon dioxide absorbed by the absorbent composition in the absorber described above was calculated by subtracting the total amount of carbon dioxide emitted by the product of the concentration value of the carbon dioxide at the rear end of the absorber and the flow rate from the total amount of carbon dioxide supplied to the absorber. The results calculated through this process are shown in Table 2.
  • FIG. 1 specifically shows the process conditions and the flow rate of the composition for absorption.
  • the method for evaluating energy usage circulates the absorbent compositions prepared in Example 4 and Comparative Example 1, and evaluates the separated recovery amount of carbon dioxide by measuring carbon dioxide absorption and release processes.
  • the Aspen plus simulation process is a synthesis gas injection device 101, mixer 1 (411), mixer 2 (412), H 2 S ABS 201, CO 2 ABS (202), N 2 PERGE (103) , N 2 STRIP 301, Compress 102, Heater 1 421, Cooler 1 424, Cooler 2 423, Cooler 3 422, Pumps 401, 402, 403, Stripper 203 ), A carbon dioxide discharge device 106, a clean gas discharge device 104, a flash 1 302, a flash 2 303, and the like.
  • the compressor 102 is 30 bar; N 2 STRIP 301 is 25 bar; Heater 1 421 is 25 bar, 50 ° C .; The stripper 203 is 1 bar; Cooler 3 422 includes 34 bar, w / DMC -7 ° C, w / DEC -8 ° C, and others -5 ° C; Cooler 2 423 includes 34 bar, DMPEG -5 ° C, w / DMC 7 ° C, and others -5 ° C; Flash 1 302 is DMPEG 2.37 ° C., w / DMC 10.48 ° C., w / DEC 4.16 ° C., w / THF 10.8 ° C., w / TAT 1.84 ° C .; Flash 2 303 is DMPEG -4.75 ° C, w / DMC 5.92 ° C, w / DEC -5.02 ° C, w / THF -5.40 ° C, w / TAT
  • Example 4 Comparative Example 1 Remove H 2 S Reboiler duty (kW) 26.389 29.699 Condener duty (kW) 2.303 2.836 Heating energy (kW) 5.485 6.036 Cooling energy (kW) 9.661 10.434 Compressor and pump energy (kW) 4.902 5.287 Sum (kW) 48.740 54.292
  • the acid gas absorption composition of Examples 1 to 8 has a low viscosity measured at 10 °C, 20 °C and 30 °C excellent industrial usability, can reduce the circulation amount, energy consumption and power for this The cost was low.
  • Example 4 energy consumption was reduced by 5 kW or more compared with Comparative Example 1 in which only ethylene glycol was used as the absorbent.
  • the composition for absorbing acid gas of Examples 1 to 8 has superior carbon dioxide absorption ability and less energy consumption than Comparative Examples 1 to 3, and thus, the carbon dioxide recovery rate and storage stability and recovery after recovery in acid gas collection process are excellent. It can be seen.

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  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

La présente invention concerne un absorbant de gaz acide contenant un composé d'ester de glycérine et un composé d'éthylène glycol, et une composition permettant d'absorber un gaz acide le comprenant. Ainsi, un absorbant de gaz acide et une composition permettant d'absorber un gaz acide le comprenant peuvent être fournis, l'absorbant de gaz acide ayant une excellente capacité d'absorption de dioxyde de carbone, un excellent taux de collecte de dioxyde de carbone, une excellente stabilité de liaison avec le dioxyde de carbone, une faible consommation d'énergie de quantité de circulation à travers une faible viscosité, et une excellente faisabilité économique, pouvant améliorer l'efficacité énergétique du cycle combiné de gazéification intégré, pouvant économiser le coût de puissance pour un procédé de collecte de gaz acide, et pouvant utiliser un procédé de mouillage et une réaction physique.
PCT/KR2015/009628 2015-06-26 2015-09-14 Absorbant de gaz acide et composition permettant d'absorber un gaz acide le comprenant Ceased WO2016208814A1 (fr)

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CN201580080638.3A CN107666951B (zh) 2015-06-26 2015-09-14 酸性气体吸收剂和包括此的用于吸收酸性气体的组成物

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KR10-2015-0091035 2015-06-26
KR1020150091035A KR101861995B1 (ko) 2015-06-26 2015-06-26 산성가스 흡수제 및 이를 포함하는 산성가스 흡수용 조성물

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11452969B2 (en) * 2016-09-02 2022-09-27 The Board Of Trustees Of The University Of Alabama Reducing acid gases from streams

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US4345918A (en) * 1979-01-31 1982-08-24 Institute Of Gas Technology Process for purification of gas streams
KR20080091154A (ko) * 2005-12-23 2008-10-09 프랙스에어 테크놀로지, 인코포레이티드 연도가스 등으로부터의 이산화탄소 회수
JP2013017993A (ja) * 2011-06-13 2013-01-31 National Institute Of Advanced Industrial Science & Technology 酸性ガス吸収液及び該酸性ガス吸収液を用いる酸性ガスの選択的分離回収法
WO2014178991A1 (fr) * 2013-04-30 2014-11-06 Uop Llc Mélanges de solvants d'absorption physique et liquides ioniques pour la séparation de gaz
KR20150034472A (ko) * 2013-09-26 2015-04-03 한국전력공사 산성가스 제거용 흡수 조성물

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