公开(公告)号：US20160271554A1

公开(公告)日：2016-09-22

申请号：US15153917

申请日：2016-05-13

Applicant: APACHE CORPORATION

Inventor： James A. RITTER ,  Armin D. EBNER ,  Jason G.S. HO

IPC: B01D53/047

CPC classification number: B01D53/047 ,  B01D53/053 ,  B01D2253/102 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/204 ,  B01D2256/12 ,  B01D2256/16 ,  B01D2256/245 ,  B01D2257/102 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2258/0283 ,  B01D2259/4003 ,  B01D2259/40041 ,  B01D2259/40075 ,  B01D2259/40079 ,  B01D2259/40081 ,  B01D2259/403 ,  B01D2259/404 ,  B01D2259/4145 ,  C01B3/56 ,  C01B13/0259 ,  C01B2203/043 ,  C10L3/105 ,  C10L2290/543 ,  Y02C10/08 ,  Y02P20/152

Abstract: A pressure swing adsorption (PSA) system and a PSA process including a PSA cycle schedule are disclosed. The PSA cycle schedule includes an unlimited number of equalization steps, no idle steps, no dead time and a minimum number of three PSA adsorbent beds assisted with two or more equalization tanks. The PSA system, process and cycle schedule include the following sequence of cycle steps: a feed step, two or more down equalization steps either between beds or between a bed and a tank, an optional forced cocurrent depressurization step coupled with a forced intermediary light end pressurization step, a countercurrent depressurization step, a light reflux step, two or more up equalization steps between beds or between a bed and a tank, an optional forced intermediary light end pressurization step coupled with the forced cocurrent depressurization step, and a light product pressurization step.

Abstract translation: 公开了一种变压吸附（PSA）系统和包括PSA循环进度的PSA方法。 PSA循环计划包括无限数量的均衡步骤，无空闲步骤，无死区时间以及由两个或多个均衡罐辅助的三个PSA吸附床的最小数量。 PSA系统，过程和循环计划包括循环步骤的以下顺序：进料步骤，在床之间或床与罐之间的两个或更多个下调均衡步骤，与强制中间光端耦合的任选的强制并流减压步骤 加压步骤，逆流减压步骤，轻回流步骤，床之间或床与罐之间的两个或多个上升平衡步骤，与强制并流减压步骤相结合的任选的强制中间轻端加压步骤，以及轻质产品加压 步。

公开(公告)号：US20160250581A1

公开(公告)日：2016-09-01

申请号：US15148569

申请日：2016-05-06

Applicant: APACHE CORPORATION

Inventor： Jason G.S. HO ,  J. Calvin COOPER

IPC: B01D53/047 ,  B01D53/22

CPC classification number: B01D53/047 ,  B01D53/229 ,  B01D2256/245 ,  B01D2257/304 ,  B01D2257/504 ,  C01B32/50 ,  C10L3/103 ,  C10L3/104 ,  C10L2290/542 ,  C10L2290/548 ,  Y02C10/08 ,  Y02C10/10 ,  Y02C20/20 ,  Y02P20/152

Abstract: Methods and systems of enhanced carbon dioxide recovery from an inlet gas stream are provided, by introducing the gas stream to one or more membrane-based separation units to produce a permeate byproduct gas stream having increased concentration of carbon dioxide compared to the inlet gas stream and then introducing the permeate byproduct gas stream to one or more pressure swing adsorption units or trains to enhance recovery of hydrocarbons, such as methane, lost in the byproduct stream and to produce a substantially pure carbon dioxide stream, while minimizing process compression and eliminating process heat for process regeneration. The methods introduced herein are for enhancing product recovery by enhancing carbon dioxide recovery from gas streams with pressures greater than atmospheric conditions. Further refinement to the methods would be the introduction of hydrogen sulfide polishing units within the process to produce product that meets or exceeds sales quality specifications.