[특허]Partial combustion process for coal

[미국특허] Partial combustion process for coal 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F23D-001/00
출원번호	US-0376725 (1982-05-10)
발명자 / 주소	Bartok William (Westfield NJ) Freund Howard (Somerville NJ)
출원인 / 주소	Exxon Research and Engineering Co. (Florham Park NJ 02)
인용정보	피인용 횟수 : 48 인용 특허 : 7

초록 ▼

Disclosed is a process for combusting coal containing more than 1 wt. % sulfur which process comprises (a) providing a coal containing more than 1 wt. % sulfur and containing an organically bound calcium to sulfur ratio of at least about 0.8 to 1, (b) burning the coal to about 80% to 95% carbon conversion at temperatures greater than about 1,100°C. in a first combustion zone in the presence of an oxidizing agent but under reducing conditions such that the equivalence ratio of coal to oxidizing agent is less than 1.5 but greater than or equal to 1.0, (c) separating the resulting solid effluent from the gaseous effluent from the first combustion zone, and (d) burning the gaseous effluent at a temperature from about 1,000°C. to about 1,500°C. in a second combustion zone under oxidizing conditions. A substantial amount of the sulfur of the coal is captured in the resulting solid effluent.

대표청구항 ▼

A process for partially combusting coal which contains greater than about 1 wt.% sulfur, wherein the generation of SOx is minimized, which process comprises: (a) providing a coal containing more than about 1 wt.% sulfur and containing organically bound calcium to sulfur in a ratio of at least about 0.8 to 1; (b) burning the coal to about 80% to 95% carbon conversion at temperatures greater than about 1,100°C. in a first combustion zone in the presence of an oxidizing agent but under reducing conditions such that the equivalence ratio of coal to oxidizing agent is less than 1.5 but greater than or equal to 1.0; (c) separating the resulting solid effluent from the gaseous effluent from the first combustion zone; and (d) burning the gaseous effluent at a temperature from about 1,000°C. to about 1,500°C. in a second combustion zone under oxidizing conditions.

이 특허에 인용된 특허 (7) 인용/피인용 타임라인 분석

Collin Per Harald (Falun SW), Apparatus for and process of converting carbonaceous materials containing sulphur to an essentially sulphur-free combust.
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Lyon Richard K. (Fanwood NJ) Freund Howard (Warren NJ), Coal combustion process.
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Mehta Arun K. (East Granby CT), Fuel firing method.
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Moss Gerald (Oxford EN) Craig John William Thomas (Wantage EN), Manufacture of combustible gases.
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Tenner Arthur R. (Parsippany NJ), Method and apparatus for reducing NOx from furnaces.
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Smith Robert H. (Plano TX), Process for reducing sulfur contaminant emissions from burning coal or lignite that contains sulfur.
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Buiter Pieter (The Hague NL) VAN DER Burgt Maarten J. (Akersloot NL) Van Helden Henricus J. A. (Haariem Resp NL), Two stage partial combustion process for solid carbonaceous fuels.
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이 특허를 인용한 특허 (48) 인용/피인용 타임라인 분석

Robinson, Earl T.; Keckler, Kenneth P.; Raman, Pattabhi K.; Sirdeshpande, Avinash, Agglomerated particulate low-rank coal feedstock and uses thereof.
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Robinson, Earl T.; Keckler, Kenneth P.; Raman, Pattabhi K.; Sirdeshpande, Avinash, Agglomerated particulate low-rank coal feedstock and uses thereof.
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Robinson, Earl T.; Keckler, Kenneth P.; Raman, Pattabhi K.; Sirdeshpande, Avinash, Agglomerated particulate low-rank coal feedstock and uses thereof.
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Raman, Pattabhi K.; Hippo, Edwin J.; Yee, Nelson, Biomass compositions for catalytic gasification.
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Robinson, Earl T., Carbonaceous fines recycle.
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Rappas, Alkis S.; Salem, George Frederick; Hippo, Edwin J., Catalyst-loaded coal compositions, methods of making and use.
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Raman, Pattabhi K.; Yee, Nelson, Catalytic gasification particulate compositions.
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Rappas, Alkis S.; Spitz, Robert A., Catalytic gasification process with recovery of alkali metal from char.
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Nahas, Nicholas Charles, Catalytic steam gasification of petroleum coke to methane.
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Hippo, Edwin J.; Reiling, Vincent G.; Robinson, Earl T.; Raman, Pattabhi K.; Smith, Jeffery; Mims, Charles; Nahas, Nicholas Charles, Char methanation catalyst and its use in gasification processes.
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Hippo, Edwin J.; Raman, Pattabhi K., Co-feed of biomass as source of makeup catalysts for catalytic coal gasification.
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Dykema Owen W. (Canoga Park CA), Coal additives.
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Rappas, Alkis S.; Salem, George Frederick, Coal compositions for catalytic gasification.
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Rappas, Alkis S.; Salem, George Frederick, Coal compositions for catalytic gasification.
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Robinson, Earl T.; Raman, Pattabhi K.; Wu, Wenyuan, Conversion of liquid heavy hydrocarbon feedstocks to gaseous products.
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Brown Melvin H. (Freeport PA), Fuel burning method to reduce sulfur emissions and form non-toxic sulfur compounds.
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Raman, Pattabhi K.; Jiradilok, Veeraya; Robinson, Earl T.; Sirdeshpande, Avinash, Hydromethanation of a carbonaceous feedstock.
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Robinson, Earl T.; Raman, Pattabhi K., Hydromethanation of a carbonaceous feedstock.
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Sirdeshpande, Avinash, Hydromethanation of a carbonaceous feedstock.
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Sirdeshpande, Avinash, Hydromethanation of a carbonaceous feedstock.
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Rappas, Alkis S.; Spitz, Robert A., Hydromethanation of a carbonaceous feedstock with nickel recovery.
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Rappas, Alkis S.; Spitz, Robert A., Hydromethanation of a carbonaceous feedstock with vanadium recovery.
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Preston, William E., Integrated enhanced oil recovery process.
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Raman, Pattabhi K., Integrated enhanced oil recovery process.
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Wallace, Paul, Integrated enhanced oil recovery process.
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Powell, Charles Allen; Raman, Pattabhi K.; Robinson, Earl T.; Sirdeshpande, Avinash, Integrated hydromethanation fuel cell power generation.
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Sirdeshpande, Avinash, Integrated hydromethanation fuel cell power generation.
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Tanca Michael C. (Tariffville CT), Integrated process for gasifying and combusting a carbonaceous fuel.
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Collin Per (Orrspelsvagen 4 Stocksund S-182 75 SEX), Method and a device for producing fuels.
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Gurries Richard M. (Saratoga CA) Johnson Jay K. (La Honda CA) Nering Eric A. (Moss Beach CA), Method and apparatus for burning solid waste products using a plurality of multiple hearth furnaces.
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Booth Richard C. (North Huntingdon PA) Breen Bernard P. (Pittsburgh PA) Glickert Roger W. (Washington DC), Method of retaining sulfur in ash during coal combustion.
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Breen Bernard P. (Laguna Beach CA) Gabrielson James E. (Plymouth MN) Pohl John H. (Mission Viejo CA), Method to enhance removal of sulfur compounds by slag.
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Reiling, Vincent G.; Robinson, Earl T.; Nahas, Nicholas Charles; Smith, Jeffery; Mims, Charles, Processes for gasification of a carbonaceous feedstock.
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Robinson, Earl T.; Lau, Francis S.; Raman, Pattabhi K.; Reiling, Vincent G.; Dodson, Dwain; Rahman, Mustafiz; Nahas, Nicholas Charles, Processes for gasification of a carbonaceous feedstock.
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Robinson, Earl T.; Reiling, Vincent G.; Raman, Pattabhi K.; Gal, Eli, Processes for gasification of a carbonaceous feedstock.
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Reiling, Vincent G.; Robinson, Earl T.; Sirdeshpande, Avinash; Nahas, Nicholas Charles, Processes for hydromethanation of a carbonaceous feedstock.
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Robinson, Earl T.; Raman, Pattabhi K.; Reiling, Vincent G., Processes for hydromethanation of a carbonaceous feedstock.
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Sirdeshpande, Avinash; Robinson, Earl T., Processes for hydromethanation of a carbonaceous feedstock.
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Robinson, Earl T., Processes for making syngas-derived products.
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Rappas, Alkis S.; Spitz, Robert A., Processes for preparing a catalyzed carbonaceous particulate.
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Rappas, Alkis S.; Spitz, Robert A.; Salem, George Frederick, Processes for preparing a catalyzed coal particulate.
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Raman, Pattabhi K.; Lau, Francis S.; Robinson, Earl T., Processes for the separation of methane from a gas stream.
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Raman, Pattabhi K.; Lau, Francis S.; Robinson, Earl T.; Anthony, Donald, Reduced carbon footprint steam generation processes.
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Raman, Pattabhi K.; Lau, Francis S.; Robinson, Earl T., Sour shift process for the removal of carbon monoxide from a gas stream.
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Lau, Francis S.; Robinson, Earl T., Steam generating slurry gasifier for the catalytic gasification of a carbonaceous feedstock.
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Raman, Pattabhi K.; Anthony, Donald, Steam generation processes utilizing biomass feedstocks.
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Brown, Melvin H.; DeYoung, David H., Three-stage process for burning fuel containing sulfur to reduce emission of particulates and sulfur-containing gases.
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Sirdeshpande, Avinash; Keckler, Kenneth P.; Robinson, Earl T.; Raman, Pattabhi K., Use of contaminated low-rank coal for combustion.
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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] Partial combustion process for coal 원문보기