[특허]Gas/solid contact method for removing sulfur oxides from gases

[미국특허] Gas/solid contact method for removing sulfur oxides from gases 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01J-008/00 C01B-017/00 B01D-053/02
출원번호	US-0214915 (1988-06-29)
발명자 / 주소	Moore Andrew S. (North Brunswick NJ) Bartholic David B. (Watchung NJ) Barger Dwight F. (High Bridge NJ) Reagan William J. (Englishtown NJ)
출원인 / 주소	Englehard Corporation (Edison NJ 02)
인용정보	피인용 횟수 : 15 인용 특허 : 12

초록 ▼

An improved continuous cyclic process for removing oxides of sulfur from a waste gas with a regenerable particulate adsorbent in which hot adsorbent particles pick up SOx in a first fluid transport riser, followed by separation of clean gas from sulfur-contained particles which are then recycled to a desorber in which they are contacted at elevated temperature with a mixture of reducing gas and water vapor for release of sulfur as hydrogen sulfide. The adsorbent particles are then recycled in the process. Means are provided for removing particulates in the waste gas.

대표청구항 ▼

A process for removing oxides of sulfur from a waste gas which comprises one or more oxides of sulfur and substantially all of the carbon is as carbon dioxide, said process comprising: a. continuously passing a stream of said waste gas into concurrent contact with fluidizable particles of a regenerable sulfur oxide adsorbent in a riser at a gas flow rate sufficiently high to assure fast fluid transport of said particles by said gas through said riser in a solely dilute phase entrained solids contacting zone for a period of time less than 30 seconds, at a superficial gas velocity of between 40 to 80 ft. per second and at a temperature between 250°F. to in excess of 1700°F., employing sufficient of said fluidizable particle to adsorb a desired amount of the oxides of sulfur in said gas, said adsorbent consisting essentially of particles having a particle size distribution suitabl for fluidization and being in the size range of about 20 to 150 microns with an average particle size in the range of 50 to 80 microns. b. immediately separatiing the gas from adsorbent particles now laden with oxides of sulfur at the outlet of said riser in a high efficiency separator to recover the majority of the adsorbent particles, whereby the adsorbent particles and gas containing oxides of sulfur are in contact with each other under conditions such that a bed of adsorbent particles is present, c. continuously passing the separated fluidizable particles of adsorbent into a regeneration zone, which is in flow communication with said adsorption zone, and containing said particles of adsorbent in said regeneration zone with a stream of reducing gas containing an effective amount of water vapor for a time and at a temperature sufficient to release substantially all adsorbed sulfur oxides and form a gas comprising hydrogen sulfide, d. continuously separating said gas comprising hydrogen sulfide from the hot fluidizable particles of absorbent now depleted of sulfur; and e. continuously circulating the fluidizable particles of adsorbent from step (d) to the riser in step (a) for contact with an incoding stream of gas containng one or more oxides of sulfur.

이 특허에 인용된 특허 (12) 인용/피인용 타임라인 분석

Green Gary J. (Yardley PA) Yan Tsoung Y. (Philadelphia PA), Catalyst for reduction of SOx emissions from FCC units.
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Sorrentino Ciro D. (Naperville IL), Catalytic cracking with reduced emission of noxious gas.
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Bartholic David B. (Watchung NJ) Byrne John W. (Saddle Brook NJ), Control of emissions in FCC regenerator flue gas.
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Bartholic David B. (Watchung NJ) Chin Don S. (Woodbridge NJ), Control of emissions in FCC regenerator flue gas.
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Brown Stanley M. (Scotch Plains NJ) Woltermann Gerald M. (North Plainfield NJ), Conversion of nitrogen oxides.
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Cahn Robert P. (Millburn NJ) Longo John M. (New Providence NJ), Desulfurization of hot gas with cerium oxide.
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Blanton ; Jr. William A. (Woodacre CA) Flanders Robert L. (San Anselmo CA), Process for controlling sulfur oxides using an alumina-impregnated catalyst.
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Bertolacini Ralph J. (Naperville IL) Hirschberg Eugene H. (Park Forest IL) Modica Frank S. (Downers Grove IL), Process for removing sulfur oxides from a gas.
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Bertolacini Ralph J. (Naperville IL) Hirschberg Eugene H. (Park Forest IL) Modica Frank S. (Downers Grove IL), Process for removing sulfur oxides from a gas.
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Longo John M. (New Providence NJ), Process for the desulfurization of flue gas.
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Sauer, Harald; Schmidt, Hans-Werner; Fennemann, Wolfgang, Process of removing pollutants from exhaust gases.
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Bhatia, Vinay K., Treatment of flue gas.
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이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

Burba, III, John L.; Hassler, Carl R.; O'Kelley, C. Brock; Lupo, Joseph A.; Pascoe, Joseph R., Apparatus for treating a flow of an aqueous solution containing arsenic.
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Burba, John, Composition and process for making the composition.
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Witham, Richard Donald; McNew, Edward Bayer; Burba, III, John Leslie, Composition for removing arsenic from aqueous streams.
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Burba, III, John L., Composition for treating a fluid.
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White, James H.; Taylor, Jesse W., Metal oxide system for adsorbent applications.
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Maziuk, Jr., John, Method of removing sulfur dioxide from a flue gas stream.
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Maziuk, Jr., John, Method of removing sulfur dioxide from a flue gas stream.
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Maziuk, Jr.,John, Method of removing sulfur trioxide from a flue gas stream.
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Burba, III, John L.; Oriard, Tim L., Process and apparatus for treating a gas containing a contaminant.
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Bhattacharyya Alakananda (Wheaton IL) Foral Michael J. (Aurora IL) Reagan William J. (Naperville IL), Process for removing sulfur oxides or nitrogen oxides from a gaseous mixture.
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Dolan,William Bachop; Byrne,John Warren; Mitariten,Michael John; Butwell,Kenneth; Maglio,Alfonse, Process for the recovery of sulfur from Claus tail gas streams.
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Cable, Robert; Hassler, Carl; Burba, John, Rare earth removal of hydrated and hydroxyl species.
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Psaras, Dimitrios; Gao, Yuan; Haneline, Mason; Lupo, Joseph; Landi, Carol, Removal of arsenic from aqueous streams with cerium (IV) oxide compositions.
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Abdulally Iqbal F. (Randolph NJ), System for cooling and cleaning synthesized gas using ahot gravel bed.
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Witham, Richard Donald; McNew, Edward Bayer; Burba, III, John Leslie, Water purification device for arsenic removal.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Gas/solid contact method for removing sulfur oxides from gases 원문보기