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    SYSTEMS AND METHODS FOR IMPROVED SULFUR RECOVERY FROM CLAUS PROCESS TAIL GAS
    1.
    发明公开
    SYSTEMS AND METHODS FOR IMPROVED SULFUR RECOVERY FROM CLAUS PROCESS TAIL GAS 审中-公开

    公开(公告)号：EP4234487A2

    公开(公告)日：2023-08-30

    申请号：EP23172385.9

    申请日：2016-08-01

    申请人： Fluor Technologies Corporation

    发明人： CHOW, Thomas King ,  GRAHAM, Curt

    IPC分类号： C01B17/16

    摘要： A system for reducing SO 2 emissions comprises a hydrogenation reactor, a tail gas cooler, a contact condenser, a hydrolysis reactor, and an absorber. The hydrogenation reactor is configured to receive a Claus tail gas and convert at least a portion of SO 2 in the Claus tail gas to H 2 S to produce a hydrogenated Claus tail gas stream. The hydrolysis reactor is configured to convert at least a portion of COS to H 2 S. The absorber comprises an amine-based solvent and is configured to absorb at least a portion of the H 2 S and recycle the H 2 S to the Claus plant.

    METHODS FOR ACID GAS ENRICHMENT
    4.
    发明授权
    METHODS FOR ACID GAS ENRICHMENT 有权
    酸性气体富集方法

    公开(公告)号：EP3069780B1

    公开(公告)日：2018-04-11

    申请号：EP15201691.1

    申请日：2004-08-18

    申请人： Fluor Technologies Corporation

    发明人： MAK, John ,  NIELSEN, Richard B. ,  CHOW, Thomas King ,  MORGAN, Oliver ,  WONG, Vincent Wai

    IPC分类号： B01D53/14

    CPC分类号： C01B17/167 ,  B01D53/1406 ,  B01D53/1468 ,  B01D2252/20431 ,  B01D2256/22 ,  C01B17/0408 ,  C10L3/10

    摘要： A plant for treating a feed gas (1) having an H2S concentration of less than 10% and comprising carbon dioxide, comprising: a first absorber (51) fluidly coupled to a regenerator (53), wherein the first absorber (51) is configured to promote absorption of hydrogen sulfide from a feed gas (1) by a portion of a lean hydrogen-sulfide-selective solvent (10, 19, 20, 21, 2), and wherein the regenerator (53) is configured to produce the lean hydrogen sulfide-selective solvent (10, 19, 20, 21, 2) and to promote formation of a hydrogen-sulfide rich gas (9) from the hydrogen-sulfide selective solvent (4, 7, 34, 35, 36, 8); a second absorber (72) fluidly coupled to the regenerator (53) and further configured to receive another portion of the lean solvent (10, 19, 20, 21, 32), wherein a portion (17) of the hydrogen sulfide-rich gas (9) of the regenerator (53) is fed to the first absorber (51) to thereby allow for an increase in a hydrogen sulfide concentration in the hydrogen-sulfide-rich gas (9) whose formation is promoted by the regenerator (53); a Claus plant (70) that receives another portion (18) of the hydrogen-sulfide-rich gas (9) of the regenerator (53) and produces a tail gas (30) that is fed to a hydrogenation unit (71) to produce a hydrogenated gas that is fed to the second absorber (72); and wherein the first and second absorbers (51, 52/72) are configured to allow production of an overhead product (3, 23, 24, 33) that is enriched in carbon dioxide and substantially depleted in hydrogen sulfide.