-
公开(公告)号：US20140008580A1
公开(公告)日：2014-01-09
申请号：US13936457
申请日：2013-07-08
Applicant: The Southern Company
Inventor： Guohai Liu , Pannalal Vimalchand , WanWang Peng
IPC: C10J3/56
CPC classification number: C10J3/56 , C10J3/721 , C10J3/84 , C10J2300/093 , C10J2300/094 , C10J2300/0976 , C10J2300/1838 , C10J2300/1846 , C10J2300/1884 , C10J2300/1892 , C10K1/024 , C10K1/026 , C10K3/005
Abstract: This invention relates to gasification of high ash bituminous coals that have high ash fusion temperatures. The ash content can be in 15 to 45 weight percent range and ash fusion temperatures can be in 1150° C. to 1500° C. range as well as in excess of 1500° C. In a preferred embodiment, such coals are dealt with a two stage gasification process—a relatively low temperature primary gasification step in a circulating fluidized bed transport gasifier followed by a high temperature partial oxidation step of residual char carbon and small quantities of tar. The system to process such coals further includes an internally circulating fluidized bed to effectively cool the high temperature syngas with the aid of an inert media and without the syngas contacting the heat transfer surfaces. A cyclone downstream of the syngas cooler, operating at relatively low temperatures, effectively reduces loading to a dust filtration unit. Nearly dust- and tar-free syngas for chemicals production or power generation and with over 90%, and preferably over about 98%, overall carbon conversion can be achieved with the preferred process, apparatus and methods outlined in this invention.
Abstract translation: 本发明涉及具有高灰熔融温度的高灰烟煤气化。 灰分含量可以在15至45重量％范围内，灰分熔化温度可以在1150℃至1500℃的范围以及超过1500℃。在一个优选的实施方案中，这种煤被处理为 二阶段气化过程 - 循环流化床输送气化器中的相对较低温度的一次气化步骤，接着是残留焦碳和少量焦油的高温部分氧化步骤。 处理这种煤的系统还包括内部循环流化床，借助惰性介质有效地冷却高温合成气，而不使合成气与传热表面接触。 合成气冷却器下游的旋风分离器在相对低的温度下运行，有效地减少了灰尘过滤装置的负荷。 使用本发明概述的优选方法，装置和方法可以实现化学品生产或发电的几乎无灰尘和焦油合成气，并且具有超过90％，优选超过约98％的总碳转化率。
-
公开(公告)号：US09464848B2
公开(公告)日：2016-10-11
申请号：US14010381
申请日：2013-08-26
Applicant: Southern Company
Inventor： Guohai Liu , Pannalal Vimalchand , Xiaofeng Guan , WanWang Peng
CPC classification number: F28D13/00 , C10J3/86 , C10J2300/093 , C10J2300/1884 , C10J2300/1892 , C10K3/005 , F28D15/00 , F28D21/0001 , F28D2021/0075 , Y02E20/16 , Y02E20/18
Abstract: A method and apparatus for cooling hot gas streams in the temperature range 800° C. to 1600° C. using multi-stage circulating fluid bed (CFB) coolers is disclosed. The invention relates to cooling the hot syngas from coal gasifiers in which the hot syngas entrains substances that foul, erode and corrode heat transfer surfaces upon contact in conventional coolers. The hot syngas is cooled by extracting and indirectly transferring heat to heat transfer surfaces with circulating inert solid particles in CFB syngas coolers. The CFB syngas coolers are staged to facilitate generation of steam at multiple conditions and hot boiler feed water that are necessary for power generation in an IGCC process. The multi-stage syngas cooler can include internally circulating fluid bed coolers, externally circulating fluid bed coolers and hybrid coolers that incorporate features of both internally and externally circulating fluid bed coolers. Higher process efficiencies can be realized as the invention can handle hot syngas from various types of gasifiers without the need for a less efficient precooling step.
Abstract translation: 公开了一种使用多级循环流化床（CFB）冷却器在800℃至1600℃的温度范围内冷却热气流的方法和装置。 本发明涉及从煤气化炉中冷却热合成气，其中热合成气在常规冷却器接触时夹带污染，腐蚀和腐蚀传热表面的物质。 通过在CFB合成气冷却器中循环惰性固体颗粒提取并间接传递热量至传热表面来冷却热合成气。 CFB合成气冷却器分段，以便在IGCC工艺中发电所需的多种条件下生产蒸汽和热锅炉给水。 多级合成气冷却器可以包括内部循环流化床冷却器，外部循环流化床冷却器和混合冷却器，其结合内部和外部循环流化床冷却器的特征。 可以实现更高的工艺效率，因为本发明可以处理来自各种类型的气化器的热合成气，而不需要较不有效的预冷却步骤。
-
公开(公告)号：US20130145934A1
公开(公告)日：2013-06-13
申请号：US13712491
申请日：2012-12-12
Applicant: The Southern Company
Inventor： Guohai Liu , Pannalal Vimalchand , WanWang Peng , Alexander Bonsu
IPC: B01D53/14
CPC classification number: B01D53/1425 , B01D53/1475 , B01D53/18 , B01D53/62 , B01D53/96 , B01D2257/504 , B01D2258/0283 , Y02C10/04 , Y02C10/06
Abstract: A regenerator that can handle rich loaded chemical solvent containing precipitated absorption reaction products is disclosed. The invention is particularly suitable for separating CO2 from large gas streams that are typical of power plant processes. The internally circulating liquid stream in the regenerator (ICLS regenerator) rapidly heats-up the in-coming rich solvent stream in a downcomer standpipe as well as decreases the overall concentration of CO2 in the mixed stream. Both these actions lead to dissolution of precipitates. Any remaining precipitate further dissolves as heat is transferred to the mixed solution with an inverted bayonet tube heat exchanger in the riser portion of the regenerator. The evolving CO2 bubbles in the riser portion of the regenerator lead to substantial gas hold-up and the large density difference between the solutions in the downcomer standpipe and riser portions promotes internal circulation of the liquid stream in the regenerator. As minor amounts of solvent components present in the exit gas stream are condensed and returned back to the regenerator, pure CO2 gas stream exits the disclosed regenerator and condenser system.
Abstract translation: 公开了一种能够处理含有沉淀的吸收反应产物的富集化学溶剂的再生器。 本发明特别适用于从典型的发电厂工艺的大气流中分离出二氧化碳。 再生器（ICLS再生器）中的内部循环液体流快速加热下降管立管中的未来富溶剂流，并降低混合流中CO 2的总浓度。 这些行为都导致沉淀物的溶解。 任何剩余的沉淀物进一步溶解，因为在再生器的提升管部分中用反转的卡口式热交换器将热量转移到混合溶液中。 在再生器的提升管部分中演变的二氧化碳气泡导致显着的气体滞留，并且降液管立管和提升管部分中的溶液之间的大的密度差促进了再生器中液体流的内部循环。 由于存在于出口气流中的少量溶剂组分被冷凝并返回到再生器中，纯的CO 2气流离开所公开的再生器和冷凝器系统。
-
公开(公告)号：US20170038152A1
公开(公告)日：2017-02-09
申请号：US15272667
申请日：2016-09-22
Applicant: Southern Company
Inventor： Guohai Liu , Pannalal Vimalchand , Xiaofeng Guan , WanWang Peng
CPC classification number: F28D13/00 , C10J3/86 , C10J2300/093 , C10J2300/1884 , C10J2300/1892 , C10K3/005 , F28D15/00 , F28D21/0001 , F28D2021/0075 , Y02E20/16 , Y02E20/18
Abstract: A method and apparatus for cooling hot gas streams in the temperature range 800° C. to 1600° C. using multi-stage circulating fluid bed (CFB) coolers is disclosed. The invention relates to cooling the hot syngas from coal gasifiers in which the hot syngas entrains substances that foul, erode and corrode heat transfer surfaces upon contact in conventional coolers. The hot syngas is cooled by extracting and indirectly transferring heat to heat transfer surfaces with circulating inert solid particles in CFB syngas coolers. The CFB syngas coolers are staged to facilitate generation of steam at multiple conditions and hot boiler feed water that are necessary for power generation in an IGCC process. The multi-stage syngas cooler can include internally circulating fluid bed coolers, externally circulating fluid bed coolers and hybrid coolers that incorporate features of both internally and externally circulating fluid bed coolers.
Abstract translation: 公开了一种使用多级循环流化床（CFB）冷却器在800℃至1600℃的温度范围内冷却热气流的方法和装置。 本发明涉及从煤气化炉冷却热合成气，其中热合成气夹带在传统冷却器中接触时污染，腐蚀和腐蚀传热表面的物质。 通过在CFB合成气冷却器中循环惰性固体颗粒提取并间接传递热量至传热表面来冷却热合成气。 CFB合成气冷却器分段，以便在IGCC工艺中发电所需的多种条件下生产蒸汽和热锅炉给水。 多级合成气冷却器可以包括内部循环流化床冷却器，外部循环流化床冷却器和混合冷却器，其结合内部和外部循环流化床冷却器的特征。
-
公开(公告)号：US09181502B2
公开(公告)日：2015-11-10
申请号：US13936457
申请日：2013-07-08
Applicant: The Southern Company
Inventor： Guohai Liu , Pannalal Vimalchand , WanWang Peng
CPC classification number: C10J3/56 , C10J3/721 , C10J3/84 , C10J2300/093 , C10J2300/094 , C10J2300/0976 , C10J2300/1838 , C10J2300/1846 , C10J2300/1884 , C10J2300/1892 , C10K1/024 , C10K1/026 , C10K3/005
Abstract: This invention relates to gasification of high ash bituminous coals that have high ash fusion temperatures. The ash content can be in 15 to 45 weight percent range and ash fusion temperatures can be in 1150° C. to 1500° C. range as well as in excess of 1500° C. In a preferred embodiment, such coals are dealt with a two stage gasification process—a relatively low temperature primary gasification step in a circulating fluidized bed transport gasifier followed by a high temperature partial oxidation step of residual char carbon and small quantities of tar. The system to process such coals further includes an internally circulating fluidized bed to effectively cool the high temperature syngas with the aid of an inert media and without the syngas contacting the heat transfer surfaces. A cyclone downstream of the syngas cooler, operating at relatively low temperatures, effectively reduces loading to a dust filtration unit. Nearly dust- and tar-free syngas for chemicals production or power generation and with over 90%, and preferably over about 98%, overall carbon conversion can be achieved with the preferred process, apparatus and methods outlined in this invention.
Abstract translation: 本发明涉及具有高灰熔融温度的高灰烟煤气化。 灰分含量可以在15至45重量％范围内，灰分熔化温度可以在1150℃至1500℃的范围以及超过1500℃。在一个优选的实施方案中，这种煤被处理为 二阶段气化过程 - 循环流化床输送气化器中的相对较低温度的一次气化步骤，接着是残留焦碳和少量焦油的高温部分氧化步骤。 处理这种煤的系统还包括内部循环流化床，借助惰性介质有效地冷却高温合成气，而不使合成气与传热表面接触。 合成气冷却器下游的旋风分离器在相对低的温度下运行，有效地减少了灰尘过滤装置的负荷。 使用本发明概述的优选方法，装置和方法可以实现化学品生产或发电的几乎无灰尘和焦油合成气，并且具有超过90％，优选超过约98％的总碳转化率。
-
Patent Agency Ranking
公开(公告)号：US20140054011A1
公开(公告)日：2014-02-27
申请号：US14010381
申请日：2013-08-26
Applicant: Southern Company
Inventor： Guohai Liu , Pannalal Vimalchand , Xiaofeng Guan , WanWang Peng
IPC: F28D15/00
CPC classification number: F28D13/00 , C10J3/86 , C10J2300/093 , C10J2300/1884 , C10J2300/1892 , C10K3/005 , F28D15/00 , F28D21/0001 , F28D2021/0075 , Y02E20/16 , Y02E20/18
Abstract: A method and apparatus for cooling hot gas streams in the temperature range 800° C. to 1600° C. using multi-stage circulating fluid bed (CFB) coolers is disclosed. The invention relates to cooling the hot syngas from coal gasifiers in which the hot syngas entrains substances that foul, erode and corrode heat transfer surfaces upon contact in conventional coolers. The hot syngas is cooled by extracting and indirectly transferring heat to heat transfer surfaces with circulating inert solid particles in CFB syngas coolers. The CFB syngas coolers are staged to facilitate generation of steam at multiple conditions and hot boiler feed water that are necessary for power generation in an IGCC process. The multi-stage syngas cooler can include internally circulating fluid bed coolers, externally circulating fluid bed coolers and hybrid coolers that incorporate features of both internally and externally circulating fluid bed coolers. Higher process efficiencies can be realized as the invention can handle hot syngas from various types of gasifiers without the need for a less efficient precooling step.
Abstract translation: 公开了一种使用多级循环流化床（CFB）冷却器在800℃至1600℃的温度范围内冷却热气流的方法和装置。 本发明涉及从煤气化炉冷却热合成气，其中热合成气夹带在传统冷却器中接触时污染，腐蚀和腐蚀传热表面的物质。 通过在CFB合成气冷却器中循环惰性固体颗粒提取并间接传递热量至传热表面来冷却热合成气。 CFB合成气冷却器分段，以便在IGCC工艺中发电所需的多种条件下生产蒸汽和热锅炉给水。 多级合成气冷却器可以包括内部循环流化床冷却器，外部循环流化床冷却器和混合冷却器，其结合内部和外部循环流化床冷却器的特征。 可以实现更高的工艺效率，因为本发明可以处理来自各种类型的气化器的热合成气，而不需要较不有效的预冷却步骤。
-
公开(公告)号：US10309727B2
公开(公告)日：2019-06-04
申请号：US15272667
申请日：2016-09-22
Applicant: Southern Company
Inventor： Guohai Liu , Pannalal Vimalchand , Xiaofeng Guan , WanWang Peng
Abstract: A method and apparatus for cooling hot gas streams in the temperature range 800° C. to 1600° C. using multi-stage circulating fluid bed (CFB) coolers is disclosed. The invention relates to cooling the hot syngas from coal gasifiers in which the hot syngas entrains substances that foul, erode and corrode heat transfer surfaces upon contact in conventional coolers. The hot syngas is cooled by extracting and indirectly transferring heat to heat transfer surfaces with circulating inert solid particles in CFB syngas coolers. The CFB syngas coolers are staged to facilitate generation of steam at multiple conditions and hot boiler feed water that are necessary for power generation in an IGCC process. The multi-stage syngas cooler can include internally circulating fluid bed coolers, externally circulating fluid bed coolers and hybrid coolers that incorporate features of both internally and externally circulating fluid bed coolers.
-
公开(公告)号：US09150800B2
公开(公告)日：2015-10-06
申请号：US14102327
申请日：2013-12-10
Applicant: Southern Company
Inventor： Guohai Liu , Pannalal Vimalchand , WanWang Peng
CPC classification number: C10J3/482 , C01B3/30 , C01B2203/0277 , C01B2203/04 , C01B2203/049 , C10J3/721 , C10J2300/093 , C10J2300/0956 , C10J2300/0976 , C10J2300/0993 , C10J2300/1807 , C10K3/005 , Y02E20/18 , Y02P20/125
Abstract: A second stage gasification unit in a staged gasification integrated process flow scheme and operating methods are disclosed to gasify a wide range of low reactivity fuels. The inclusion of second stage gasification unit operating at high temperatures closer to ash fusion temperatures in the bed provides sufficient flexibility in unit configurations, operating conditions and methods to achieve an overall carbon conversion of over 95% for low reactivity materials such as bituminous and anthracite coals, petroleum residues and coke. The second stage gasification unit includes a stationary fluidized bed gasifier operating with a sufficiently turbulent bed of predefined inert bed material with lean char carbon content. The second stage gasifier fluidized bed is operated at relatively high temperatures up to 1400° C. Steam and oxidant mixture can be injected to further increase the freeboard region operating temperature in the range of approximately from 50 to 100° C. above the bed temperature.
Abstract translation: 公开了分级气化一体化工艺流程图和操作方法中的第二阶段气化单元以气化各种低反应性燃料。 包含第二阶段气化单元在较高温度下工作，接近床层的灰熔融温度，为单体配置，操作条件和方法提供了足够的灵活性，以实现低反应性材料如沥青和无烟煤的总体转化率超过95％ ，石油残渣和焦炭。 第二阶段气化单元包括固定的流化床气化器，其操作有具有贫碳含量的预定惰性床材料的充分湍流床。 第二级气化器流化床在高达1400℃的较高温度下操作。可以注入蒸汽和氧化剂混合物，以进一步将干舷区域操作温度提高到高于床温度的约50至100℃的范围内。
-
9.发明申请High Pressure Feeder and Method of Operating to Feed Granular or Fine Materials 审中-公开高压给料机和操作进料颗粒或精细材料的方法公开(公告)号：US20150044014A1
公开(公告)日：2015-02-12
申请号：US14488323
申请日：2014-09-17
Applicant: Southern Company Services, Inc.
Inventor： Pannalal Vimalchand , Guohai Liu , Wan Wang Peng
CPC classification number: B01J3/02 , C10J3/30 , C10J3/50 , C10J3/723 , C10J2200/09 , C10J2200/156 , C10J2300/093 , F23K3/02
Abstract: A coal feed system to feed pulverized low rank coals containing up to 25 wt % moisture to gasifiers operating up to 1000 psig pressure is described. The system includes gas distributor and collector gas permeable pipes imbedded in the lock vessel. Different methods of operation of the feed system are disclosed to minimize feed problems associated with bridging and packing of the pulverized coal. The method of maintaining the feed system and feeder device exit pressures using gas addition or extraction with the pressure control device is also described.
Abstract translation: 描述了一种供料系统，其将含有高达25重量％水分的粉末状低级煤料送入高达1000psig压力的气化器。 该系统包括嵌入在锁定容器中的气体分配器和集气器透气管。 公开了进料系统的不同操作方法以最小化与粉煤的桥接和包装相关的进料问题。 还描述了使用气体添加或用压力控制装置提取来维持进料系统和进料装置出口压力的方法。
-
10.发明授权High pressure feeder and method of operating to feed granular or fine materials 有权高压进料器和操作方法来进料颗粒或精细材料公开(公告)号：US09409136B2
公开(公告)日：2016-08-09
申请号：US14488323
申请日：2014-09-17
Applicant: Southern Company Services, Inc.
Inventor： Pannalal Vimalchand , Guohai Liu , Wan Wang Peng
CPC classification number: B01J3/02 , C10J3/30 , C10J3/50 , C10J3/723 , C10J2200/09 , C10J2200/156 , C10J2300/093 , F23K3/02
Abstract: A coal feed system to feed pulverized low rank coals containing up to 25 wt % moisture to gasifiers operating up to 1000 psig pressure is described. The system includes gas distributor and collector gas permeable pipes imbedded in the lock vessel. Different methods of operation of the feed system are disclosed to minimize feed problems associated with bridging and packing of the pulverized coal. The method of maintaining the feed system and feeder device exit pressures using gas addition or extraction with the pressure control device is also described.
Abstract translation: 描述了一种供料系统，其将含有高达25重量％水分的粉末状低级煤料送入高达1000psig压力的气化器。 该系统包括嵌入在锁定容器中的气体分配器和集气器透气管。 公开了进料系统的不同操作方法以最小化与粉煤的桥接和包装相关的进料问题。 还描述了使用气体添加或用压力控制装置提取来维持进料系统和进料装置出口压力的方法。
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.013 seconds)
