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公开(公告)号：US10131855B2
公开(公告)日：2018-11-20
申请号：US15167997
申请日：2016-05-28
Inventor： Yanfeng Zhang , Liang Zhang , Yilong Chen
Abstract: A method for pressurized pyrolysis of biomass in a pressurized pyrolysis furnace, including: 1) crushing and screening biomass; collecting biomass having desired particle sizes; and delivering the biomass having desired particle sizes to a pulse-type feeding system; 2) transporting the biomass to a pyrolysis furnace via the pulse-type feeding system; synchronously initiating microwave and a plasma torch, the microwave producing a microwave field in the pyrolysis furnace, working gas of the plasma torch being ionized for the first time to produce plasma jet entering the pyrolysis furnace; and 3) allowing the syngas generated in 2) to continue moving upwards and introducing the syngas out from the top of the pyrolysis furnace; chilling the syngas; introducing the syngas to a cyclone separator to separate residues; and then cooling and purifying the syngas using a cooling device and a purifying device, respectively, to produce clean syngas.
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公开(公告)号：US10077407B2
公开(公告)日：2018-09-18
申请号：US15261988
申请日：2016-09-11
Inventor： Yanfeng Zhang , Liang Zhang , Minggui Xia , Wenyan Liu
CPC classification number: C10J3/82 , C10G2/32 , C10G2/34 , C10G2300/1011 , C10J3/482 , C10J3/72 , C10J2200/15 , C10J2300/0916 , C10J2300/0969 , C10J2300/123 , C10J2300/1238 , C10J2300/1269 , C10J2300/1292 , C10J2300/1659 , C10J2300/1693 , C10J2300/1815 , C10J2300/1861 , C10J2300/1884 , C10J2300/1892 , C10K1/004 , C10K1/02 , C10K1/026 , C10K1/08 , C10K3/04 , Y02E50/32 , Y02P20/129 , Y02P20/134 , Y02P20/145 , Y02P30/20
Abstract: A biomass gasification system. The system includes: a) a gasifier; b) a waste heat exchanger; c) a waste heat boiler; d) a cyclone separator; e) a gas scrubber; f) a shift reactor; g) a desulfurizing tower; h) a first decarburizing tower; i) a synthesizing tower; and j) a second decarburizing tower. In the system, the gasifier, the waste heat exchanger, the cyclone separator, the gas scrubber, the shift reactor, the desulfurizing tower, the first decarburizing tower, the synthesizing tower, and the second decarburizing tower are connected sequentially. In addition, CO2 outlets of the first decarburizing tower and the second decarburizing tower are both connected to a cold medium inlet of the waste heat exchanger; and a cold medium outlet of the waste heat exchanger is connected to a gasifying agent entrance of the gasifier.
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3.发明授权公开(公告)号：US09469820B2
公开(公告)日：2016-10-18
申请号：US14607020
申请日：2015-01-27
Inventor： Yanfeng Zhang , Liang Zhang , Minggui Xia , Wenyan Liu
CPC classification number: C10J3/82 , C10G2/32 , C10G2/34 , C10G2300/1011 , C10J3/482 , C10J3/72 , C10J2200/15 , C10J2300/0916 , C10J2300/0969 , C10J2300/123 , C10J2300/1238 , C10J2300/1269 , C10J2300/1292 , C10J2300/1659 , C10J2300/1693 , C10J2300/1815 , C10J2300/1861 , C10J2300/1884 , C10J2300/1892 , C10K1/004 , C10K1/02 , C10K1/026 , C10K1/08 , C10K3/04 , Y02E50/32 , Y02P20/129 , Y02P20/134 , Y02P20/145 , Y02P30/20
Abstract: A method for recycling carbon dioxide from biomass gasification. The method includes: 1) employing carbon dioxide as a gasifying agent, allowing the carbon dioxide to gasify biomass to yield syngas; 2) cooling the syngas; 3) introduced cooled syngas to a cyclone separator and a gas scrubber for dust removal and purification; 4) allowing purified syngas in 3) to react with the vapor to modify a ratio of hydrogen to carbon monoxide of the syngas; 5) desulfurizing modified syngas to remove H2S and COS therein; 6) decarburizing desulfurized syngas to separate carbon dioxide therein; 7) introducing desulfurized and decarburized syngas to a synthesizing tower to yield oil products and exhaust gas including carbon dioxide; 8) decarburizing the exhaust gas including carbon dioxide and separating the carbon dioxide; and 9) introducing the carbon dioxide separated in 6) and 8) to 1) as the gasifying agent for gasification.
Abstract translation: 从生物质气化中回收二氧化碳的方法。 该方法包括：1）使用二氧化碳作为气化剂，使二氧化碳气化生物质，得到合成气; 2）冷却合成气; 3）将冷却的合成气引入旋风分离器和用于除尘和净化的气体洗涤器; 4）允许3）中的纯化合成气与蒸汽反应以改变合成气的氢气与一氧化碳的比例; 5）脱硫改性合成气以除去其中的H 2 S和COS; 6）脱碳脱硫合成气分离二氧化碳; 7）将脱硫脱碳合成气引入合成塔，得到含油产物和二氧化碳的废气; 8）对包括二氧化碳在内的废气进行脱碳并分离二氧化碳; 和9）将在6）和8）中分离的二氧化碳引入1）作为气化气化剂。
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公开(公告)号：US09873841B2
公开(公告)日：2018-01-23
申请号：US15344569
申请日：2016-11-06
Inventor： Yilong Chen , Yanfeng Zhang , Minggui Xia , Liang Zhang
CPC classification number: C10J3/72 , C10J3/18 , C10J3/466 , C10J3/485 , C10J3/506 , C10J3/723 , C10J2200/152 , C10J2300/0906 , C10J2300/0916 , C10J2300/0959 , C10J2300/0976 , C10J2300/1238 , Y02P20/145
Abstract: A method for gasifying biomass using a gasifier, the gasifier including a furnace body and a fuel pretreatment system. The method includes 1) crushing and sieving a biomass fuel to yield particle size-qualified fuel particles, 2) exciting working gas to yield plasma, and spraying the plasma into the gasifier, 3) spraying the particle size-qualified fuel particles into the gasifier via nozzles, synchronously spraying an oxidizer via an oxygen/vapor inlet into the gasifier, and 4) monitoring the temperature and components of the syngas, regulating an oxygen flow rate, a vapor flow rate, and microwave power to maintain the process parameters within a preset range and to control a temperature of the syngas to be between 900 and 1200° C., collecting the syngas from the syngas outlet at the top of the furnace body, and discharging liquid slag from the slag outlet.
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