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公开(公告)号：EP2998012B1
公开(公告)日：2019-10-09
申请号：EP15743873.0
申请日：2015-01-21
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公开(公告)号：EP3366364A1
公开(公告)日：2018-08-29
申请号：EP16851353.9
申请日：2016-09-23
CPC分类号： B01D53/1493 , B01D53/14 , B01D53/52 , B01D53/526 , B01D53/62 , B01D53/78 , B01D2252/20405 , B01D2252/20421 , B01D2252/20426 , B01D2252/20431 , B01D2252/20447 , B01D2252/20484 , Y02A50/2342 , Y02C10/06 , Y02P20/152
摘要： The present invention provides an absorbent liquid for CO 2 and/or H 2 S, and an apparatus and a method using the same, which make it possible to reduce the amount of reboiler heat when regenerating the absorbent liquid. The absorbent liquid according to the present invention is an absorbent liquid which absorbs CO 2 and/or H 2 S in a gas, including components of: (a) a secondary linear monoamine; (b1) a tertiary linear monoamine or (b2) a sterically hindered primary monoamine; and (c) a secondary cyclic diamine, in which a concentration of each of the components is less than 30% by weight.
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公开(公告)号：EP4112155A1
公开(公告)日：2023-01-04
申请号：EP21780193.5
申请日：2021-01-13
摘要： A CO 2 recovery unit of the present invention includes: a CO 2 absorber 14 that removes CO 2 from an introduced gas 11A having a low CO 2 concentration with use of a CO 2 absorbent; and an absorbent regenerator 15 that regenerates a rich solution 13C. The CO 2 absorber 14 has at least two or more stages 141A, 141B of the CO 2 absorption section. The CO 2 recovery unit further includes: absorbent circulation lines L 11 , L 12 that each discharge the CO 2 absorbent from a lower side of one of the CO 2 absorption stages 141A, 141B and supply the CO 2 absorbent as a circulation solution 13B to an upper side of the corresponding CO 2 absorption stage 141A, 141B used for the discharge; and absorbent discharge lines L 21 , L 1 that discharge a part of the circulation solution 13B, 13C from the absorbent circulation lines L 11 , L 12 and supply the solution as the discharged solution 13B-1, 13C to an adjacent stage immediately below the stage for the discharge.
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公开(公告)号：EP3827893A1
公开(公告)日：2021-06-02
申请号：EP20213454.0
申请日：2016-09-23
摘要： The present invention provides an absorbent liquid for CO2 and/or H2S, and an apparatus and a method using the same, which make it possible to reduce the amount of reboiler heat when regenerating the absorbent liquid. The absorbent liquid according to the present invention is an absorbent liquid which absorbs CO2 and/or H2S in a gas, including components of: (a) a secondary linear monoamine; (b2) a sterically hindered primary monoamine; and (c) a secondary cyclic diamine, in which a concentration of each of the components is less than 30% by weight and in total 70% or less, the concentration of (a) and (b2) is more than 10%, the concentration of (c) is less than that of (a) and of (b2)
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公开(公告)号：EP3705172A1
公开(公告)日：2020-09-09
申请号：EP18874215.9
申请日：2018-10-24
摘要： An acid gas regenerator includes a regenerator condenser 40 that condenses moisture from entraining gas 41 entraining a corrosive substance and acid gas discharged from a column top portion of a regenerator 14 that regenerates acid gas absorbent. The regenerator condenser 40 includes: a gas discharge line that discharges the entraining gas 41 from the column top portion of the regenerator; a cooler 42 installed on the discharge line; a gas-liquid separator 43 that separates CO 2 gas from regenerator condensed water 44 obtained by condensing vapor using the cooler; a reflux line 40b that refluxes the regenerator condensed water 44 closer to the column top portion than the rich solution introducing unit 14a; a condensed water receiver 14e storing the condensed water 44 introduced by the reflux line 40b; and a first condensed water extraction line 14g-1 that extracts the condensed water 44 from a condensed water extractor 14f of the condensed water receiver 14e and is connected to a lean solution supply line 53.
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公开(公告)号：EP2799836B1
公开(公告)日：2019-02-06
申请号：EP12862677.7
申请日：2012-12-19
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公开(公告)号：EP2848298B1
公开(公告)日：2018-12-26
申请号：EP13788078.7
申请日：2013-04-25
CPC分类号： B01D53/526 , B01D53/1425 , B01D53/1462 , B01D53/1493 , B01D53/78 , B01D2252/20405 , B01D2252/2041 , B01D2252/20421 , B01D2252/20426 , B01D2252/20447 , B01D2252/20484 , B01D2252/504 , B01D2257/304 , B01D2257/504 , B01D2258/0283 , B01J20/22 , Y02C10/04 , Y02C10/06
摘要： An absorbent is prepared by dissolving in water 1) monoethanolamine (MEA) and 2) a primary amine represented by the following formula (1) and having high steric hindrance. Releasability of CO 2 or H 2 S during regeneration of the absorbent is thereby improved, and the amount of water vapor used during regeneration of the absorbent in a facility for recovering CO 2 or H 2 S can be reduced. R 1 to R 3 : H or a hydrocarbon group having 1 to 3 carbon atoms, at least one of R 1 to R 3 being a hydrocarbon.
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公开(公告)号：EP3373001A1
公开(公告)日：2018-09-12
申请号：EP16861976.5
申请日：2016-10-26
CPC分类号： G01N11/00 , B01D53/14 , B01D53/1412 , B01D53/1425 , B01D53/1475 , B01D53/62 , B01D53/78 , B01D53/96 , B01D2252/204 , G01N29/024 , G01N33/00 , Y02A50/2342 , Y02C10/04 , Y02C10/06
摘要： Provided are: a system for analyzing the CO 2 concentration of an amine absorbing solution whereby the CO 2 concentration of an amine absorbing solution can be automatically measured on-line, regardless of whether the absorbing solution has a high or low amine concentration; a CO 2 recovery system; and a method for operating the same. To analyze the CO 2 concentration of an amine absorbing solution which is utilized while being circulated between an absorption column 10, in which the amine absorbing solution is brought into a gas-liquid contact with a CO 2 -containing gas to be treated so as to absorb CO 2 , and a regeneration column 20 for regenerating the absorbing solution having absorbed CO 2 , at least one factor selected from among viscosity, electric conductivity and ultrasonic wave propagation speed of the amine absorbing solution is measured by a measurement device 40 and then the CO 2 concentration of the amine absorbing solution is computed by a controller 50 on the basis of the measurement result(s).
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9.发明公开
公开(公告)号：EP3936219A1
公开(公告)日：2022-01-12
申请号：EP20788092.3
申请日：2020-02-26
摘要： An absorbent according to the present invention is an absorbent for absorbing CO 2 or H 2 S, or both of CO 2 and H 2 S in a gas. The absorbent contains, as components, (a) a secondary linear monoamine, (b) a tertiary linear monoamine, and (c) a secondary cyclic diamine. When the concentration of the secondary linear monoamine (a) is more than 30% by weight and less than 45% by weight and the concentration of the tertiary linear monoamine (b) is more than 15% by weight and less than 30% by weight, absorbability of CO 2 or H 2 S, or both of CO 2 and H 2 S is good, and releasability of CO 2 or H 2 S that have been absorbed during regeneration of the absorbent is good. The amount of steam of a reboiler 26 used during regeneration of the absorbent in a CO 2 recovery unit 12 can be thus reduced.
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公开(公告)号：EP3476462B1
公开(公告)日：2020-09-09
申请号：EP18743953.4
申请日：2018-01-24
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