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    PRODUCTION OF PURE HYDROGEN FROM AMMONIA RICH SOUR WATER STRIPPER OVERHEAD
    2.
    发明申请
    PRODUCTION OF PURE HYDROGEN FROM AMMONIA RICH SOUR WATER STRIPPER OVERHEAD 审中-公开

    公开(公告)号：US20170203963A1

    公开(公告)日：2017-07-20

    申请号：US15000389

    申请日：2016-01-19

    Applicant: Fluor Technologies Corporation

    Inventor： Ravi Ravikumar ,  Paul M. Mathias

    IPC: C01B3/04 ,  C01B17/04

    CPC classification number: C01B3/04 ,  C01B3/047 ,  C01B17/04 ,  C01B17/0408 ,  C01B2203/043 ,  C01B2203/0465 ,  C01B2203/0475 ,  C01B2203/1058 ,  Y02E60/364

    Abstract: A method of producing hydrogen comprising receiving a sour gas comprising CO2, H2S, and ammonia from a sour water stripper; introducing the sour gas to an absorption system to produce an ammonia rich gas and a sulfide rich gas, wherein the ammonia rich gas comprises ammonia and CO2, and wherein the sulfide rich gas comprises H2S and CO2; compressing the ammonia rich gas in a compressing unit to a pressure of 400-600 psig to produce a compressed ammonia rich gas; introducing the compressed ammonia rich gas to an ammonia cracker unit comprising a catalyst to produce a cracked gas, wherein the ammonia cracker unit is characterized by a cracking temperature of 450-550° C., and wherein the cracked gas comprises hydrogen, nitrogen, and CO2; and introducing the cracked gas to a PSA unit to produce hydrogen and a PSA tail gas, wherein the PSA tail gas comprises nitrogen and CO2.

    Methods and systems for improving the energy efficiency of carbon dioxide capture
    3.
    发明授权
    Methods and systems for improving the energy efficiency of carbon dioxide capture 有权

    公开(公告)号：US10376829B2

    公开(公告)日：2019-08-13

    申请号：US15621889

    申请日：2017-06-13

    Applicant: Fluor Technologies Corporation

    Inventor： Paul M. Mathias ,  Satish Reddy ,  Joseph Yonkoski

    IPC: B01D53/14

    Abstract: A system for carbon dioxide capture from a gas mixture comprises a lean solvent comprising 3-amino-1-propanol (AP), 2-dimethylamino-2-methyl-1-propanol (DMAMP), and water; an absorber containing at least a portion of the lean solvent, wherein the absorber is configured to receive the lean solvent and a gaseous stream comprising carbon dioxide, contact the lean solvent with the gaseous stream, and produce a rich solvent stream and a gaseous stream depleted in carbon dioxide; a stripper, wherein the stripper is configured to receive the rich solvent stream; a cross-exchanger fluidly coupled to a rich solvent outlet on the absorber and a rich solvent inlet on the stripper; a reboiler fluidly coupled to a lower portion of the stripper; and a condenser fluidly coupled to a vapor outlet of the stripper.

    Methods and systems for improving the energy efficiency of carbon dioxide capture
    4.
    发明授权
    Methods and systems for improving the energy efficiency of carbon dioxide capture 有权

    公开(公告)号：US11179671B2

    公开(公告)日：2021-11-23

    申请号：US15986453

    申请日：2018-05-22

    Applicant: Fluor Technologies Corporation

    Inventor： Paul M. Mathias ,  Satish Reddy

    IPC: B01D53/62 ,  B01D53/78 ,  B01D53/14

    Abstract: A system for carbon dioxide capture from a gas mixture comprises an absorber that receives a lean solvent system stream (containing a chemical solvent, physical-solvent, and water) from the stripper, a stripper that receives the rich solvent stream from the absorber and produces the product carbon dioxide and the lean solvent through the use of a reboiler in fluid communication with a lower portion of the stripper, a condenser in fluid communication with a vapor outlet of the stripper, a cross-exchanger in fluid communication with a rich solvent system outlet from the absorber and a rich solvent system inlet on the stripper, and a splitter. The splitter is configured to separate the rich solvent system stream into a first portion and second portion, where the first portion directly passes to the stripper and the second portion passes through the cross-exchanger prior to passing to the stripper.

    Claus plant preprocessing systems and methods for removal of ammonia from claus plant feed gases
    5.
    发明授权
    Claus plant preprocessing systems and methods for removal of ammonia from claus plant feed gases 有权
    克劳斯植物预处理系统和从克劳斯植物原料气中除去氨的方法

    公开(公告)号：US09181095B2

    公开(公告)日：2015-11-10

    申请号：US14329725

    申请日：2014-07-11

    Applicant: FLUOR TECHNOLOGIES CORPORATION

    Inventor： Ravi Ravikumar ,  Paul M. Mathias ,  Paul E. Koppel ,  Sanjiv Dabee

    IPC: C01B17/04 ,  B01D53/58 ,  B01D53/75 ,  C01B25/28

    CPC classification number: C01B17/0408 ,  C01B25/28

    Abstract: Systems and methods for pre-treatment of acid gas are presented in which ammonium is removed from the acid gas in an absorber that is operated at significantly elevated temperature using dilute phosphoric acid. While seemingly incompatible, absorbing ammonia at high heat in the absorber will allow for production of a diammonium phosphate product that is ultra-low in residual sulfurous compounds and prevent crystallization of phosphate salts due to the increased solubility of the salts in the hot diluted solvent.

    Abstract translation: 提出了用于预处理酸性气体的系统和方法，其中在使用稀磷酸在显着升高的温度下运行的吸收器中从酸性气体中除去铵。 虽然似乎不兼容，但是在吸收器中吸收高热量的氨将允许生产残留的亚硫酸化合物中超低的磷酸二铵产物，并且由于盐在热稀释溶剂中的溶解度增加而防止磷酸盐的结晶。

    Production of pure hydrogen from ammonia rich sour water stripper overhead
    7.
    发明授权
    Production of pure hydrogen from ammonia rich sour water stripper overhead 有权

    公开(公告)号：US10112829B2

    公开(公告)日：2018-10-30

    申请号：US15000389

    申请日：2016-01-19

    Applicant: Fluor Technologies Corporation

    Inventor： Ravi Ravikumar ,  Paul M. Mathias

    IPC: F04D29/58 ,  F01K27/02 ,  F01K7/16 ,  F04D1/04 ,  F01D15/10 ,  C01B3/04 ,  C01B17/04

    Abstract: A method of producing hydrogen comprising receiving a sour gas comprising CO2, H2S, and ammonia from a sour water stripper; introducing the sour gas to an absorption system to produce an ammonia rich gas and a sulfide rich gas, wherein the ammonia rich gas comprises ammonia and CO2, and wherein the sulfide rich gas comprises H2S and CO2; compressing the ammonia rich gas in a compressing unit to a pressure of 400-600 psig to produce a compressed ammonia rich gas; introducing the compressed ammonia rich gas to an ammonia cracker unit comprising a catalyst to produce a cracked gas, wherein the ammonia cracker unit is characterized by a cracking temperature of 450-550° C., and wherein the cracked gas comprises hydrogen, nitrogen, and CO2; and introducing the cracked gas to a PSA unit to produce hydrogen and a PSA tail gas, wherein the PSA tail gas comprises nitrogen and CO2.

    CLAUS PLANT PREPROCESSING SYSTEMS AND METHODS FOR REMOVAL OF AMMONIA FROM CLAUS PLANT FEED GASES
    9.
    发明申请
    CLAUS PLANT PREPROCESSING SYSTEMS AND METHODS FOR REMOVAL OF AMMONIA FROM CLAUS PLANT FEED GASES 有权
    植物生长因子植物预处理系统和从植物饲料气体中去除氨的方法

    公开(公告)号：US20150014590A1

    公开(公告)日：2015-01-15

    申请号：US14329725

    申请日：2014-07-11

    Applicant: FLUOR TECHNOLOGIES CORPORATION

    Inventor： Ravi Ravikumar ,  Paul M. Mathias ,  Paul E. Koppel ,  Sanjiv Dabee

    IPC: C01B17/04

    CPC classification number: C01B17/0408 ,  C01B25/28

    Abstract: Systems and methods for pre-treatment of acid gas are presented in which ammonium is removed from the acid gas in an absorber that is operated at significantly elevated temperature using dilute phosphoric acid. While seemingly incompatible, absorbing ammonia at high heat in the absorber will allow for production of a diammonium phosphate product that is ultra-low in residual sulfurous compounds and prevent crystallization of phosphate salts due to the increased solubility of the salts in the hot diluted solvent.

    Abstract translation: 提出了用于预处理酸性气体的系统和方法，其中在使用稀磷酸在显着升高的温度下运行的吸收器中从酸性气体中除去铵。 虽然似乎不兼容，但是在吸收器中吸收高热量的氨将允许生产残留的亚硫酸化合物中超低的磷酸二铵产物，并且由于盐在热稀释溶剂中的溶解度增加而防止磷酸盐的结晶。

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