US20110296871A1 - Method and apparatus for separating nitrogen from a mixed stream comprising nitrogen and methane - Google Patents

Method and apparatus for separating nitrogen from a mixed stream comprising nitrogen and methane Download PDF

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Publication number
US20110296871A1
US20110296871A1 US13/144,322 US201013144322A US2011296871A1 US 20110296871 A1 US20110296871 A1 US 20110296871A1 US 201013144322 A US201013144322 A US 201013144322A US 2011296871 A1 US2011296871 A1 US 2011296871A1
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United States
Prior art keywords
contactor
stream
heat exchange
methane
sorption
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Abandoned
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US13/144,322
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English (en)
Inventor
Esther Lucia Johanna Van Soest-Vercammen
Renze Wijntje
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Shell USA Inc
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Assigned to SHELL OIL COMPANY reassignment SHELL OIL COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VAN SOEST-VERCAMMEN, ESTHER LUCIA JOHANNA, WIJNT JE, RENZE
Publication of US20110296871A1 publication Critical patent/US20110296871A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0462—Temperature swing adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/24—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/416—Further details for adsorption processes and devices involving cryogenic temperature treatment

Definitions

  • the present invention provides a method for separating nitrogen from a mixed stream comprising nitrogen and methane and an apparatus therefore.
  • One reason for removing nitrogen from such a stream may be in order to obtain natural gas having a desired heating value (i.e. energy content when the gas is burned), according to particular gas specifications or the requirements of a consumer.
  • a desired heating value i.e. energy content when the gas is burned
  • FIG. 1 shows a schematic view of a monolith sorbent contactor
  • the amount of adsorbent required in such a thermal swing process to achieve the separation of methane from the nitrogen from a mixed stream having a selected % of methane at a specified flow rate is significantly lower than would be the case in a conventional thermal swing absorption configuration.
  • Desorption may be facilitated by exposing the monolith sorbent contactor to a heat exchange fluid in order to increase its temperature.
  • a heat exchange fluid may also be used to bring the monolith sorbent contactor to low temperature prior to and/or while allowing the mixed stream into the separation flow channels.
  • the sorbent described herein is activated carbon.
  • Activated or active carbon is a form of carbon which has been processed to provide it with a large surface area which can be available for the sorption of molecular species.
  • the BET surface area available for the sorption may be in excess of 500 m 2 /g as determined by a BET surface area method known in the art, such as N 2 adsorption at liquid nitrogen temperature using multipoint pressures of 0.08, 0.14 and 0.20 P/P 0 (relative pressure/vapour pressure), and using adsorption analyzers such as the TriStar 3000 apparatus of Micromeritics Instrument Corporation, USA.
  • BET surface area has been proposed and described by Brunauer, S., Emmett, P. H. & Teller, E. in “Adsorption of gases in multimolecular layers” J. Am. Chem. Soc. 60, pp. 309-319 (1938).
  • the monolith sorbent contactor may have any desired shape, such as a rod-, triangular prismatic- or quadrilateral prismatic-shape etc. Rod-shaped contactors are preferred because these can be most easily integrated into a separation unit.
  • the purging fluid stream may, for instance, be supplied along first auxiliary line 75 to the one or more inlets 2 b of the flow channels 2 a.
  • the purging fluid can remove any residual components of the mixed stream such as nitrogen and any unsorbed methane from the separation flow channels 2 a prior to the desorbing of the methane and any heavier hydrocarbons.
  • the spent purging fluid stream can exit the flow channels 2 a via outlets 2 c and be removed from the contactor 2 via a second auxiliary line (not shown). Countercurrent purging in which the purging fluid stream is passed from flow channel outlets 2 c to flow channel inlets 2 b via the second and first auxiliary lines is also envisaged.
  • the heat exchange fluid stream is preferably warm, i.e. preferably having a temperature higher than that of the contactor 2 .
  • the barrier layer 2 f is provided to prevent the heat exchange fluid reaching the body of the contactor 2 and contaminating the separation flow channels 2 a.
  • a preferred barrier layer is an epoxy resin.
  • two or more contactors 2 can be arranged in parallel, such that when one contactor 2 approaches full loading, the mixed stream 40 can be passed to a second unloaded contactor (not shown), so that continuous processing of the mixed stream 40 can be achieved.
  • the controlled expanded hydrocarbon stream 30 is separated into a gaseous overhead stream, which is a mixed stream 40 comprising nitrogen and methane (removed at outlet 32 ) and a liquid bottom stream 50 (removed at outlet 33 ).
  • outlets 22 and 23 may be separate outlets or one and the same outlet. Further, the person skilled in the art will understand that instead of one contactor 2 , several parallel contactors may be used. Also, several contactors (containing different sorbent materials, at least one of which is the monolith sorption contactor formed of a unitary construction of active carbon described herein) may be placed in series to enable the separation of one or more other streams (including nitrogen).
  • the cool heat exchange fluid stream 110 produced by heating contactor 2 to desorption temperature can be used in the cooling of a natural gas stream in a liquefaction process, or stored to cool the contactor 2 to sorption temperature upon completion of the regeneration operation.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Gases By Adsorption (AREA)
US13/144,322 2009-01-15 2010-01-13 Method and apparatus for separating nitrogen from a mixed stream comprising nitrogen and methane Abandoned US20110296871A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09150637.8 2009-01-15
EP09150637 2009-01-15
PCT/EP2010/050320 WO2010081809A1 (fr) 2009-01-15 2010-01-13 Procédés et appareil pour séparer l'azote d'un courant mixte comprenant de l'azote et du méthane

Publications (1)

Publication Number Publication Date
US20110296871A1 true US20110296871A1 (en) 2011-12-08

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US13/144,322 Abandoned US20110296871A1 (en) 2009-01-15 2010-01-13 Method and apparatus for separating nitrogen from a mixed stream comprising nitrogen and methane

Country Status (5)

Country Link
US (1) US20110296871A1 (fr)
CN (1) CN102281936A (fr)
AU (1) AU2010205669B2 (fr)
GB (1) GB2478488B (fr)
WO (1) WO2010081809A1 (fr)

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EP2857782A1 (fr) 2013-10-04 2015-04-08 Shell International Research Maatschappij B.V. Échangeur de chaleur à bobine enroulée et procédé de refroidissement d'un flux de procédé
US9358493B2 (en) 2011-03-01 2016-06-07 Exxonmobil Upstream Research Company Apparatus and systems having an encased adsorbent contactor and swing adsorption processes related thereto
US9675925B2 (en) 2014-07-25 2017-06-13 Exxonmobil Upstream Research Company Apparatus and system having a valve assembly and swing adsorption processes related thereto
US9713787B2 (en) 2014-12-10 2017-07-25 Exxonmobil Upstream Research Company Adsorbent-incorporated polymer fibers in packed bed and fabric contactors, and methods and devices using same
US9744521B2 (en) 2014-12-23 2017-08-29 Exxonmobil Upstream Research Company Structured adsorbent beds, methods of producing the same and uses thereof
US9751041B2 (en) 2015-05-15 2017-09-05 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
US9861929B2 (en) 2015-05-15 2018-01-09 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
US10040022B2 (en) 2015-10-27 2018-08-07 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
US10080991B2 (en) 2015-09-02 2018-09-25 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
US10220345B2 (en) 2015-09-02 2019-03-05 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
US10220346B2 (en) 2015-10-27 2019-03-05 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
US10322365B2 (en) 2015-10-27 2019-06-18 Exxonmobil Upstream Reseach Company Apparatus and system for swing adsorption processes related thereto
US10328382B2 (en) 2016-09-29 2019-06-25 Exxonmobil Upstream Research Company Apparatus and system for testing swing adsorption processes
US10427088B2 (en) 2016-03-18 2019-10-01 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
US10427091B2 (en) 2016-05-31 2019-10-01 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes
US10427089B2 (en) 2016-05-31 2019-10-01 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes
US10434458B2 (en) 2016-08-31 2019-10-08 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
US10549230B2 (en) 2016-12-21 2020-02-04 Exxonmobil Upstream Research Company Self-supporting structures having active materials
US10603626B2 (en) 2016-09-01 2020-03-31 Exxonmobil Upstream Research Company Swing adsorption processes using zeolite structures
US10675615B2 (en) 2014-11-11 2020-06-09 Exxonmobil Upstream Research Company High capacity structures and monoliths via paste imprinting
US10710053B2 (en) 2016-12-21 2020-07-14 Exxonmobil Upstream Research Company Self-supporting structures having active materials
US10744449B2 (en) 2015-11-16 2020-08-18 Exxonmobil Upstream Research Company Adsorbent materials and methods of adsorbing carbon dioxide
US11318410B2 (en) 2018-12-21 2022-05-03 Exxonmobil Upstream Research Company Flow modulation systems, apparatus, and methods for cyclical swing adsorption
US11331620B2 (en) 2018-01-24 2022-05-17 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes
US11376545B2 (en) 2019-04-30 2022-07-05 Exxonmobil Upstream Research Company Rapid cycle adsorbent bed
US11413567B2 (en) 2018-02-28 2022-08-16 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes
US11433346B2 (en) 2019-10-16 2022-09-06 Exxonmobil Upstream Research Company Dehydration processes utilizing cationic zeolite RHO
US11655910B2 (en) 2019-10-07 2023-05-23 ExxonMobil Technology and Engineering Company Adsorption processes and systems utilizing step lift control of hydraulically actuated poppet valves

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JP5889288B2 (ja) 2010-05-28 2016-03-22 エクソンモービル アップストリーム リサーチ カンパニー 一体型吸着器ヘッド及び弁設計及びこれと関連したスイング吸着法
WO2012118757A1 (fr) 2011-03-01 2012-09-07 Exxonmobil Upstream Research Company Appareil et systèmes ayant un ensemble tête de soupape à va-et-vient et procédés d'adsorption d'oscillation associés à ceux-ci
FR2974735B1 (fr) 2011-05-03 2015-11-20 Air Liquide Adsorbeur comprenant des contacteurs a passages paralleles avec isolation integree
CN105363316B (zh) * 2015-11-24 2018-01-02 工业和信息化部电子第五研究所 吸附装置及用于汽车voc检测的干燥装置

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US10016715B2 (en) 2011-03-01 2018-07-10 Exxonmobil Upstream Research Company Apparatus and systems having an encased adsorbent contactor and swing adsorption processes related thereto
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Also Published As

Publication number Publication date
AU2010205669A1 (en) 2011-07-28
AU2010205669B2 (en) 2013-03-28
GB2478488A (en) 2011-09-07
GB2478488B (en) 2013-10-30
CN102281936A (zh) 2011-12-14
WO2010081809A1 (fr) 2010-07-22
GB201111264D0 (en) 2011-08-17

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