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특허 상세정보

Method of removing hydrogen sulfide from gases utilizing a zinc oxide sorbent and regenerating the sorbent

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/34   
미국특허분류(USC) 423/230 ; 423/231 ; 502/38 ; 502/51
출원번호 US-0395894 (1982-07-07)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 21  인용 특허 : 4
초록

A spent solid sorbent resulting from the removal of hydrogen sulfide from a fuel gas flow is regenerated with a steam-air mixture. The mixture of steam and air may also include additional nitrogen or carbon dioxide. The gas mixture contacts the spent sorbent containing metal sulfide at a temperature above 500°C. to regenerate the sulfide to metal oxide or carbonate. Various metal species including the period four transition metals and the lanthanides are suitable sorbents that may be regenerated by this method. In addition, the introduction of carbon dio...

대표
청구항

A method of repetitively generating a spent sorbent containing zinc sulfide to form zinc oxide in conjunction with a hydrogen sulfide sorption process, wherein said zinc oxide sorbent is repetitively spent to form zinc sulfide, said method in each repetition consisting essentially of contacting said spent sorbent with a desorbent gas mixture flow consisting essentially of approximately 55% nitrogen, 25% steam and 20% air (4% oxygen) by volume at a space velocity of about 3200 gas to sorbent volumes per hour at a temperature of about 650°C. for a period o...

이 특허를 인용한 특허 피인용횟수: 21

  1. Denny Patrick J. (Darlington GB2) Carnell Peter J. H. (Stockton-on-Tees GB2). Desulphurization. USP1991014983365.
  2. Denny Patrick J. (Darlington GB3) Shipley David G. (Stockton-on-Tees GB3). Desulphurization. USP1990084946660.
  3. Denny Patrick J. (Darlington GBX). Desulphurization. USP1989084861566.
  4. Brooks Kirtland (3483 Golden Gate Way ; Number 13 ; Lafayette CA 94549). Economical, safe, unsupervised method for in-vessel regeneration of iron-oxide sponge used in wastewater-treatment-plant. USP1989074849191.
  5. Mak, John. Gas purification configurations and methods. USP2014118876951.
  6. Iyer, Mahesh V.; Fan, Liang-Shih; Ramkumar, Shwetha. High purity, high pressure hydrogen production with in-situ COand sulfur capture in a single stage reactor. USP2010117837975.
  7. Iyer, Mahesh V.; Fan, Liang-Shih. High temperature COcapture using engineered eggshells: a route to carbon management. USP2010037678351.
  8. Rebecca Faller ; Mark Holst. In-situ air oxidation treatment of MOCVD process effluent. USP2002126491884.
  9. Wertheim Ronald J. (Hartford CT) Sederquist Richard A. (Newington CT). Integrated fuel cell and fuel conversion apparatus. USP1989034816353.
  10. Gal Eli (Lancaster PA). Method and system for removal of sulfur compounds from gases and for regenerating spent sorbents. USP1989084857285.
  11. Dysard, Jeffrey M.; Stuntz, Gordon F.; Halbert, Thomas R.; Malek, Andrzej. Process for removing sulfur from naphtha. USP2010097799210.
  12. Denny Patrick J. (County Durham GB2) Thomas Alan E. (Cleveland GB2) Carnell Peter J. (Cleveland GB2). Purification of a hydrocarbon mixture. USP1990014894210.
  13. Chen, Jingguang G.; Brown, Leo D.; Baird, Jr., William C.; McVicker, Gary B.; Ellis, Edward S.; Touvelle, Michele S.; Klein, Darryl P.; Vaughan, David E. W.. Regeneration of iron-based hydrogen sulfide sorbents. USP2004046723230.
  14. Joubert James I. (Pittsburgh PA). Removal of sulfur and nitrogen containing pollutants from discharge gases. USP1986054587113.
  15. Pendergraft Paul T. (Tulsa OK). Removal of water vapor diluent after regeneration of metal oxide absorbent to reduce recycle stream. USP1989064842843.
  16. Fan, Liang Shih; Gupta, Himanshu; Iyer, Mahesh V.. Separation of carbon dioxide (CO) from gas mixtures. USP2009117618606.
  17. Fan, Liang-Shih; Gupta, Himanshu; Iyer, Mahesh V.. Separation of carbon dioxide from gas mixtures by calcium based reaction separation. USP2012078226917.
  18. McGovern John J. (Tulsa OK) Pendergraft Paul T. (Tulsa OK) Lee Min-Hsiun (Tulsa OK). Sulfur recovery process using metal oxide absorbent with regenerator recycle to Claus catalytic reactor. USP1989014797268.
  19. Fan Liang Shih ; Agnihotri Rajeev ; Mahuli Suhas K.. Suspension carbonation process for reactivation of partially utilized sorbent. USP2001106309996.
  20. Gal Eli (Lancaster PA). System for removal or sulfur compounds from gases and for regenerating spent sorbents. USP1991065026528.
  21. Grieve,Malcolm James; Weissman,Jeffrey G.; Mukerjee,Subhasish. Trapping method and system for energy conversion devices. USP2006057037615.