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1. 发明公开

US20240042377A1 COMPOSITE AMINE ABSORBENT, REMOVAL UNIT, AND REMOVAL METHOD 审中-公开
公开(公告)号：US20240042377A1
公开(公告)日：2024-02-08
申请号：US18282154
申请日：2022-04-28
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD. , The Kansai Electric Power Co., Inc.
发明人： Hiroshi Tanaka , Takashi Kamijo , Takuya Hirata , Tatsuya Tsujiuchi , Takuya Sugiura
IPC分类号： B01D53/14 , B01D53/18 , B01D53/52 , B01D53/62 , B01D53/78 , B01D53/96
CPC分类号： B01D53/1493 , B01D53/18 , B01D53/1425 , B01D53/526 , B01D53/1468 , B01D53/1475 , B01D53/1462 , B01D53/62 , B01D53/78 , B01D53/96 , B01D2257/304 , B01D2257/504 , B01D2252/504 , B01D2252/20405 , B01D2252/2041 , B01D2252/20447 , B01D2252/20484
摘要： A composite amine absorbent to absorb at least one of CO2 and H2S in a gas includes: a chain monoamine; a diamine; a cyclic compound represented by the following chemical formula:

where R1: any one of hydrogen, a hydrocarbon group having a carbon number of 1 to 4, and a hydroxyalkyl group, R2: oxygen or N—R3, and R3: any one of hydrogen, a hydrocarbon group having a carbon number of 1 to 4, and a hydroxyalkyl group; and water.

2. 发明授权

US10456734B2 CO2 recovery system and method of recovering CO2 有权
公开(公告)号：US10456734B2
公开(公告)日：2019-10-29
申请号：US15340391
申请日：2016-11-01
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Tatsuya Tsujiuchi , Takashi Kamijo , Masayuki Inui , Osamu Miyamoto
IPC分类号： B01D53/14 , B01D53/18 , B01D53/62 , B01D53/78
摘要： Included are a CO2 absorber for removing CO2 from a CO2-containing flue gas with a CO2 absorbent, an absorbent regenerator for regenerating the absorbent, a rich solution supply line for supplying the rich solution from the absorber to a rich solution supply portion of the regenerator, a rich/lean solution heat exchanger for exchanging heat between the rich solution and the lean solution, a first rich solution dividing line for dividing the rich solution at a first dividing portion in the rich solution supply line and supplying the divided rich solution at a first supply position on a side wall of the regenerator, a first rich solution heat exchanger for preheating the divided rich solution, and a first flow rate control device for controlling a flow rate of the divided rich solution such that the rich solution is preheated to a predetermined temperature in the first rich solution heat exchanger.

3. 发明授权

US10195561B2 Steam supply system and CO2 recovery unit including the same 有权
公开(公告)号：US10195561B2
公开(公告)日：2019-02-05
申请号：US13623491
申请日：2012-09-20
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Koji Nakayama , Takahito Yonekawa , Masayuki Inui , Tatsuya Tsujiuchi , Osamu Miyamoto , Yoshiki Sorimachi
IPC分类号： B01D53/14 , B01D53/62 , B01D53/78 , F23J15/02 , F22B37/00 , B01D3/32
摘要： A steam supply system that can reheat CO2 absorbing liquid without lowering performance of a reboiler by decompressing a condensed water drum is provided. This system includes a reboiler that raises the temperature of absorbing liquid contacted with exhaust gas discharged from a boiler to absorb CO2 in the exhaust gas and heated to eliminate CO2. The reboiler includes a heat exchanger tube to which steam for heating is supplied and a condensed water drum that recovers condensed water of the steam introduced from the heat exchanger tube as steam drain, and the condensed water drum is provided with decompression unit that lowers pressure in the condensed water drum.

4. 发明申请

US20170291138A1 CO2 RECOVERY DEVICE AND CO2 RECOVERY METHOD 审中-公开
公开(公告)号：US20170291138A1
公开(公告)日：2017-10-12
申请号：US15505313
申请日：2015-10-23
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Hiroshi Tanaka , Takuya Hirata , Atsuhiro Yukumoto , Tsuyoshi Oishi , Takahiko Endo , Tatsuya Tsujiuchi
IPC分类号： B01D53/62 , F01K23/10 , F02C6/18 , B01D53/78
CPC分类号： B01D53/62 , B01D53/14 , B01D53/1418 , B01D53/1475 , B01D53/73 , B01D53/78 , B01D53/79 , B01D53/96 , B01D2257/504 , B01D2258/0283 , F01K23/105 , F02C6/18 , Y02A50/2342 , Y02C10/06
摘要： An absorption column is equipped with: a CO2 absorption section absorbing CO2 from CO2-containing exhaust gas using a lean solution; a main rinse section recovering an entrained CO2 absorbent using rinse water; a rinse water circulation line circulating a rinse water containing the CO2 absorbent recovered in a liquid storage section of the main rinse section; a pre-rinse section provided between the CO2 absorption section and the main rinse section; a rinse section extraction liquid supply line extracting a portion of the rinse water containing the CO2 absorbent from the rinse water circulation line, and introducing the same into a reflux section of an absorption liquid regeneration tower; and a refluxed water supply line extracting a portion of refluxed water, introducing the same as pre-rinse water for the pre-rinse section, and connected on the pre-rinse section side.

5. 发明授权

US09433890B2 Dehydration equipment, gas compression system, and dehydration method 有权
标题翻译：脱水设备，气体压缩系统和脱水方法
公开(公告)号：US09433890B2
公开(公告)日：2016-09-06
申请号：US13859339
申请日：2013-04-09
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Masayuki Inui , Takahito Yonekawa , Koji Nakayama , Tatsuya Tsujiuchi , Yoshiki Sorimachi
IPC分类号： B01D53/26
CPC分类号： B01D53/261 , B01D53/0438 , B01D53/265 , B01D2259/402
摘要： In a dehydration equipment, a regenerative gas heater heats a portion of CO2 gas dehydrated in an adsorption tower that is performing an adsorption process and supplies the gas to an adsorption tower that is performing a regeneration process. A regenerative gas preheater performs heat exchange between the CO2 gas that will be supplied to a regenerative gas heater and the CO2 gas sent out from the adsorption tower that is performing the regeneration process. Then, in the dehydration equipment, a regenerative gas cooler cools the CO2 gas that has been sent out from the adsorption tower that is performing the regeneration process and exchanged heat, separates water from the cooled CO2 gas, and returns the resulting gas to the adsorption tower. Thus, the dehydration equipment can prevent an increase in utility consumption due to the regeneration process.
摘要翻译：在脱水设备中，再生气体加热器对正在进行吸附过程的吸附塔中脱水的一部分CO 2气体进行加热，并将气体供给到正在进行再生处理的吸附塔。再生气体预热器在供给再生气体加热器的CO 2气体与从正在进行再生处理的吸附塔排出的CO 2气体之间进行热交换。然后，在脱水装置中，再生气体冷却器冷却从进行再生处理的吸附塔排出的二氧化碳气体并进行热交换，从冷却的CO 2气体中分离出水，并将所得气体返回至吸附塔。因此，脱水设备可以防止由于再生过程而导致的功耗消耗的增加。

6. 发明申请

US20140238236A1 COGENERATION SYSTEM CONCEPT FOR CO2 RECOVERY PLANT 审中-公开
标题翻译：二氧化碳回收厂的浓缩系统概念
公开(公告)号：US20140238236A1
公开(公告)日：2014-08-28
申请号：US13775464
申请日：2013-02-25
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Masayuki Inui , Takahito Yonekawa , Tiffany Wu , Tatsuya Tsujiuchi , Shintaro Honjo , Koji Nakayama
IPC分类号： B01D53/14
CPC分类号： B01D53/1425 , B01D53/1475 , B01D2259/65 , Y02C10/04 , Y02C10/06 , Y02E20/14
摘要： A CO2 recovery system and a CO2 recovery method include an absorption apparatus that causes CO2 in an exhaust gas to be absorbed by CO2 absorption liquid, a regeneration apparatus that heats the CO2 absorption liquid to separate CO2; a CO2 compression mechanism of a first turbine driving mechanism that is driven in conjunction with a first steam turbine to compress separated CO2, a reheating boiler that supplies LP steam exhausted from the first steam turbine in order to heat the CO2 absorption liquid, an auxiliary boiler that heats condensed water of the LP steam after the CO2 absorption liquid is heated to generate HP steam and supplies the HP steam to the first steam turbine, and a second turbine driving mechanism that supplies the HP steam generated in the auxiliary boiler to a second steam turbine and is driven in conjunction with the second steam turbine.
摘要翻译：二氧化碳回收系统和二氧化碳回收方法包括使排气中的二氧化碳被二氧化碳吸收液吸收的吸收装置，加热二氧化碳吸收液分离CO 2的再生装置; 与第一蒸汽轮机一起驱动以压缩分离的CO 2的第一涡轮驱动机构的二氧化碳压缩机构，提供从第一蒸汽轮机排出的LP蒸汽以加热二氧化碳吸收液体的再热锅炉，辅助锅炉在所述CO 2吸收液体被加热以产生HP蒸汽并且将HP蒸汽供应到所述第一蒸汽涡轮机之后，加热所述LP蒸汽的冷凝水;以及第二涡轮机驱动机构，其将在所述辅助锅炉中产生的HP蒸汽供应到第二蒸汽涡轮机并且与第二蒸汽轮机一起被驱动。

7. 发明申请

US20130164203A1 CO2 RECOVERY SYSTEM AND CO2 RECOVERY METHOD 有权
标题翻译：二氧化碳回收系统和二氧化碳回收方法
公开(公告)号：US20130164203A1
公开(公告)日：2013-06-27
申请号：US13766082
申请日：2013-02-13
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD. , THE KANSAI ELECTRIC POWER CO., INC.
发明人： Hiromitsu Nagayasu , Takashi Kamijo , Takahito Yonekawa , Hiroshi Tanaka , Shinya Kishimoto , Takuya Hirata , Tatsuya Tsujiuchi , Masaru Chiyomaru , Koji Nakayama , Masahiko Tatsumi , Yasuyuki Yagi , Kazuhiko Kaibara
IPC分类号： B01D53/62
CPC分类号： B01D53/1418 , B01D53/1475 , B01D53/62 , B01D2252/204 , B01D2257/504 , Y02A50/2342 , Y02C10/04 , Y02C10/06
摘要： A CO2 recovery system includes an absorber 2 and a regenerator 3. The absorber 2 includes a CO2 absorbing section 21 and a water-washing section 22. The CO2 absorbing section 21 allows flue gas 101 to come into contact with a basic amine compound absorbent 103 so that the basic amine compound absorbent 103 absorbs CO2 in the flue gas 101. The water-washing section 22 allows the decarbonated flue gas 101A in which the amount of CO2 has been reduced in the CO2 absorbing section 21 to come into contact with circulating wash water 104 and to be washed with the wash water 104 so that the amounts of the basic amine compounds entrained in the decarbonated flue gas 101A are reduced. The regenerator 3 releases CO2 from the basic amine compound absorbent 103 the CO2 absorbed therein.
摘要翻译： CO 2回收系统包括吸收器2和再生器3.吸收器2包括CO 2吸收部分21和水洗部分22.CO 2吸收部分21允许烟道气101与碱性胺化合物吸收剂103接触使得碱性胺化合物吸收剂103吸收烟道气101中的CO 2。水洗部22允许在CO 2吸收部21中CO 2的量减少的脱碳废气101A与循环洗涤物接触水104并用洗涤水104洗涤，使得夹带在脱碳酸烟道气101A中的碱性胺化合物的量减少。再生器3从碱性胺化合物吸收剂103中吸收其中吸收的CO释放二氧化碳。

8. 发明授权

US11772041B2 Composite amine absorbent, and device and method for removing CO2 or H2S, or both of CO2 and H2S 有权
公开(公告)号：US11772041B2
公开(公告)日：2023-10-03
申请号：US17424093
申请日：2019-12-04
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD. , The Kansai Electric Power Co., Inc.
发明人： Hiroshi Tanaka , Takuya Hirata , Tatsuya Tsujiuchi , Takashi Kamijo , Tomoki Noborisato
IPC分类号： B01D53/14 , B01D53/62 , B01D53/96
CPC分类号： B01D53/1468 , B01D53/1475 , B01D53/62 , B01D53/96 , B01D2252/2041 , B01D2252/20405 , B01D2257/304 , B01D2257/504
摘要： A composite amine absorbent according to the present invention is an absorbent for absorbing CO2 or H2S, or both of CO2 and H2S in a gas. The absorbent is obtained by dissolving (1) a linear monoamine, (2) a diamine, and (3) propylene glycol alkyl ether, for example, represented by the following chemical formula (I) in water. In the composite amine absorbent, the components complexly interact, and the synergistic effect thereof provides good absorbability of CO2 or H2S, or both of CO2 and H2S and good releasability of CO2 or H2S absorbed during regeneration of the absorbent. Furthermore, the amount of water vapor in a reboiler 26 used during regeneration of the absorbent in a CO2 recovery unit 12 can be reduced.

R1—O—(R2—O)n—R3 (I)

9. 发明授权

US10456737B2 Absorbing liquid, method for preparing absorbing liquid, and device and method for removing CO2 or H2S or both 有权
公开(公告)号：US10456737B2
公开(公告)日：2019-10-29
申请号：US15522432
申请日：2015-10-23
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Hiroshi Tanaka , Takuya Hirata , Atsuhiro Yukumoto , Tsuyoshi Oishi , Takahiko Endo , Tatsuya Tsujiuchi
IPC分类号： B01D53/62 , B01D53/14 , C01B32/50 , B01D53/52 , B01D53/96
摘要： An absorbing liquid which absorbs the CO2 or H2S or both contained in a gas, and which comprises 1) at least one tertiary-monoamine main agent selected from a tertiary-monoamine group and 2) at least one secondary-diamine first additive selected from a secondary-diamine group, the secondary-diamine concentration being within the range of 0.05 to 0.5 in terms of the additive concentration index represented by the following expression (I). (Additive concentration index)=[(secondary-diamine acid dissociation index) (pKa)/(tertiary-monoamine acid dissociation index) (pKa)] (index ratio)×[(secondary-diamine molar concentration) (mol/L)/(tertiary-monoamine molar concentration) (mol/L)] (molar ratio) (I).

10. 发明授权

US10201781B2 CO2 recovery device and CO2 recovery method 有权
公开(公告)号：US10201781B2
公开(公告)日：2019-02-12
申请号：US15505313
申请日：2015-10-23
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Hiroshi Tanaka , Takuya Hirata , Atsuhiro Yukumoto , Tsuyoshi Oishi , Takahiko Endo , Tatsuya Tsujiuchi
IPC分类号： B01D53/62 , B01D53/78 , F01K23/10 , F02C6/18 , B01D53/14 , B01D53/73 , B01D53/79 , B01D53/96
摘要： An absorption column is equipped with: a CO2 absorption section absorbing CO2 from CO2-containing exhaust gas using a lean solution; a main rinse section recovering an entrained CO2 absorbent using rinse water; a rinse water circulation line circulating a rinse water containing the CO2 absorbent recovered in a liquid storage section of the main rinse section; a pre-rinse section provided between the CO2 absorption section and the main rinse section; a rinse section extraction liquid supply line extracting a portion of the rinse water containing the CO2 absorbent from the rinse water circulation line, and introducing the same into a reflux section of an absorption liquid regeneration tower; and a refluxed water supply line extracting a portion of refluxed water, introducing the same as pre-rinse water for the pre-rinse section, and connected on the pre-rinse section side.

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