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1. 发明申请

WO2011006059A2 CARBON DIOXIDE ABSORBER AND REGENERATION ASSEMBLIES USEFUL FOR POWER PLANT FLUE GAS 审中-公开
标题翻译：二氧化碳吸收器和再生组件可用于发电厂烟气
公开(公告)号：WO2011006059A2
公开(公告)日：2011-01-13
申请号：PCT/US2010/041513
申请日：2010-07-09
申请人： SOUTHERN COMPANY , VIMALCHAND, Pannalal , LIU, Guohai , PENG, Wan Wang
发明人： VIMALCHAND, Pannalal , LIU, Guohai , PENG, Wan Wang
IPC分类号： B01D53/14 , B01D53/62 , B01D53/78 , B01D47/00
CPC分类号： B01D53/08 , B01D53/62 , B01D2257/504 , F23J2215/50 , F23J2219/60 , Y02A50/2342 , Y02C10/04 , Y02C10/06 , Y02C10/08
摘要： Disclosed are apparatus and method to treat large amounts of flue gas from a pulverized coal combustion power plant. The flue gas is contacted with solid sorbents to selectively absorb CO 2 , which is then released as a nearly pure CO 2 gas stream upon regeneration at higher temperature. The method is capable of handling the necessary sorbent circulation rates of tens of millions of lbs/hr to separate CO 2 from a power plant's flue gas stream. Because pressurizing large amounts of flue gas is cost prohibitive, the method of this invention minimizes the overall pressure drop in the absorption section to less than 25 inches of water column. The internal circulation of sorbent within the absorber assembly in the proposed method not only minimizes temperature increases in the absorber to less than 25 °F, but also increases the CO 2 concentration in the sorbent to near saturation levels. Saturating the sorbent with CO 2 in the absorber section minimizes the heat energy needed for sorbent regeneration. The commercial embodiments of the proposed method can be optimized for sorbents with slower or faster absorption kinetics, low or high heat release rates, low or high saturation capacities and slower or faster regeneration kinetics.
摘要翻译：公开了处理来自粉煤燃烧动力装置的大量烟道气的装置和方法。烟气与固体吸附剂接触以选择性地吸收CO 2 2，然后在较高温度下再生时CO 2 2以近乎纯净的CO 2气流形式释放。该方法能够处理数千万磅/小时的必要吸附剂循环速率，以将CO 2从电厂的烟道气流中分离出来。因为对大量烟气加压是成本过高的，所以本发明的方法将吸收部分的总体压降降至小于25英寸水柱。在所提出的方法中，吸收器组件内的吸附剂的内部循环不仅使吸收器中的温度增加最小化至小于25°F，而且还将吸附剂中的CO 2浓度增加至接近饱和水平。用吸收器部分中的CO 2饱和吸附剂使吸附剂再生所需的热能最小化。所提出方法的商业实施方案可针对具有较慢或较快吸收动力学，低或高热释放速率，低或高饱和容量以及更慢或更快再生动力学的吸附剂进行优化。

2. 发明申请

WO2011084734A3 AN APPARATUS, COMPONENTS AND OPERATING METHODS FOR CIRCULATING FLUIDIZED BED TRANSPORT GASIFIERS AND REACTORS 审中-公开
公开(公告)号：WO2011084734A3
公开(公告)日：2011-07-14
申请号：PCT/US2010/061259
申请日：2010-12-20
申请人： SOUTHERN COMPANY SERVICES, INC. , LIU, Guohai , VIMALCHAND, Pannalal , PENG, Wan, Wang
发明人： LIU, Guohai , VIMALCHAND, Pannalal , PENG, Wan, Wang
IPC分类号： C10J3/56 , C10L3/00
摘要： The improvements proposed in this invention provide a reliable apparatus and method to gasify low rank coals in a class of pressurized circulating fluidized bed reactors termed "transport gasifier." The embodiments overcome a number of operability and reliability problems with existing gasifiers. The systems and methods address issues related to distribution of gasification agent without the use of internals, management of heat release to avoid any agglomeration and clinker formation, specific design of bends to withstand the highly erosive environment due to high solid particles circulation rates, design of a standpipe cyclone to withstand high temperature gasification environment, compact design of seal-leg that can handle high mass solids flux, design of nozzles that eliminate plugging, uniform aeration of large diameter Standpipe, oxidant injection at the cyclone exits to effectively modulate gasifier exit temperature and reduction in overall height of the gasifier with a modified non- mechanical valve.

3. 发明申请

WO2014011541A3 GASIFICATION OF HIGH ASH, HIGH ASH FUSION TEMPERATURE BITUMINOUS COALS 审中-公开
公开(公告)号：WO2014011541A3
公开(公告)日：2014-01-16
申请号：PCT/US2013/049566
申请日：2013-07-08
申请人： SOUTHERN COMPANY
发明人： LIU, Guohai , VIMALCHAND, Pannalal , PENG, Wanwang
IPC分类号： C10J3/54
摘要： 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.

4. 发明申请

WO2010123477A1 CONTINUOUS COARSE ASH DEPRESSURIZATION SYSTEM 审中-公开
标题翻译：连续的ASH减压系统
公开(公告)号：WO2010123477A1
公开(公告)日：2010-10-28
申请号：PCT/US2009/002829
申请日：2009-05-07
申请人： SOUTHERN COMPANY SERVICES, INC. , LIU, Guohai , PENG, Wan, Wang , VIMALCHAND, Pannalal
发明人： LIU, Guohai , PENG, Wan, Wang , VIMALCHAND, Pannalal
IPC分类号： F22B1/00 , F22B37/24
CPC分类号： F23C10/24 , F23C2900/10006
摘要： A system for depressurizing and cooling a high pressure, high temperature dense phase solids stream having coarse solid particles with entrained gas therein. In one aspect, the system has an apparatus for at least partially depressurizing and cooling the high pressure, high temperature dense phase solids stream having gas entrained therein and a pressure letdown device for further depressurization and separating cooled coarse solid particles from a portion of the entrained gas, resulting in a lower temperature, lower pressure outlet of solid particles for downstream processing or discharge to a storage silo for future use and/or disposal. There are no moving parts in the flow path of the solids stream in the system.
摘要翻译：一种用于对其中具有夹带气体的粗固体颗粒进行减压和冷却的高压，高温致密固体物流的系统。在一个方面，该系统具有用于至少部分地减压和冷却具有夹带在其中的气体的高压，高温致密相固体物流的装置，以及用于进一步减压和分离冷却的粗固体颗粒与夹带的一部分的压力降低装置气体，导致较低温度，较低压力的固体颗粒出口，用于下游处理或排放到储存筒仓以备将来使用和/或处置。系统中固体物流的流路中没有运动部件。

5. 发明申请

WO2014035887A1 MULTI-STAGE CIRCULATING FLUIDIZED BED SYNGAS COOLING 审中-公开
标题翻译：多级循环流化床数学冷却
公开(公告)号：WO2014035887A1
公开(公告)日：2014-03-06
申请号：PCT/US2013/056631
申请日：2013-08-26
申请人： SOUTHERN COMPANY
发明人： LIU, Guohai , VIMALCHAND, Pannalal , GUAN, Xiaofeng , PENG, WanWang
IPC分类号： B01J8/28
CPC分类号： F28D13/00 , C10J3/86 , C10J2300/093 , C10J2300/1884 , C10J2300/1892 , C10K3/005 , F28D15/00 , F28D21/0001 , F28D2021/0075 , Y02E20/16 , Y02E20/18
摘要： 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 5 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.
摘要翻译：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5个腐蚀，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。

6. 发明申请

WO2012121886A1 DISPERSED BUBBLE REACTOR FOR ENHANCED GAS-LIQUID-SOLIDS CONTACT AND MASS TRANSFER 审中-公开
标题翻译：用于增强气体 - 液体 - 固体接触和传质的分散泡沫反应器
公开(公告)号：WO2012121886A1
公开(公告)日：2012-09-13
申请号：PCT/US2012/026106
申请日：2012-02-22
申请人： SOUTHERN COMPANY , VIMALCHAND, Pannalal , LIU, Guohai , PENG, WanWang , BONSU, Alexander, K.
发明人： VIMALCHAND, Pannalal , LIU, Guohai , PENG, WanWang , BONSU, Alexander, K.
IPC分类号： B01D53/14 , B01D53/18 , B01J8/18 , B01J8/22 , B01J19/18
CPC分类号： B01J8/228 , B01D53/1475 , B01D53/18 , B01D53/62 , B01D2251/206 , B01J8/1827 , B01J8/1836 , B01J8/1872 , B01J19/1881 , B01J2208/00141 , B01J2208/00548 , B01J2219/00083 , B01J2219/00164 , B01J2219/00182 , B01J2219/00247 , Y02A50/2342 , Y02C10/04 , Y02C10/06 , Y02P20/152
摘要： An apparatus to promote gas-liquid contact and facilitate enhanced mass transfer. The dispersed bubble reactor (DBR) operates in the dispersed bubble flow regime to selectively absorb gas phase constituents into the liquid phase. The dispersion is achieved by shearing the large inlet gas bubbles into fine bubbles with circulating liquid and additional pumped liquid solvent when necessary. The DBR is capable of handling precipitates that may form during absorption or fine catalysts that may be necessary to promote liquid phase reactions. The DBR can be configured with multistage counter current flow sections by inserting concentric cylindrical sections into the riser to facilitate annular flow. While the DBR can absorb C02 in liquid solvents that may lead to precipitates at high loadings, it is equally capable of handling many different types of chemical processes involving solids (precipitates/catalysts) along with gas and liquid phases.
摘要翻译：促进气 - 液接触并促进增强传质的装置。分散的气泡反应器（DBR）以分散的气泡流动方式操作，以选择性地吸收气相成分进入液相。通过在需要时将大的入口气泡剪切成具有循环液体的细小气泡和附加的泵送液体溶剂来实现分散。 DBR能够处理可能在吸收过程中形成的沉淀物或可能促进液相反应所需的细小催化剂。 DBR可以通过将同心圆柱形部分插入提升管中以便于环形流动而配置多级逆流部分。虽然DBR可以在液体溶剂中吸收可能导致高负载沉淀物的CO 2，但同样能够处理涉及固体（沉淀/催化剂）以及气相和液相的许多不同类型的化学过程。

7. 发明申请

WO2012021404A2 ASH AND SOLIDS COOLING IN HIGH TEMPERATURE AND HIGH PRESSURE ENVIRONMENT 审中-公开
标题翻译： ASH和SOLID冷却高温和高压环境
公开(公告)号：WO2012021404A2
公开(公告)日：2012-02-16
申请号：PCT/US2011/046765
申请日：2011-08-05
申请人： SOUTHERN COMPANY , VIMALCHAND, Pannalal , LIU, Guohai , PENG, WanWang
发明人： VIMALCHAND, Pannalal , LIU, Guohai , PENG, WanWang
IPC分类号： B01J8/18 , C10J3/56 , F23J15/06 , F23G5/30 , F23J1/02
CPC分类号： F28D21/001 , C10J3/523 , C10J3/76 , C10J2300/093 , C10J2300/1625 , C10J2300/1861 , C10J2300/1892 , C10K1/022 , C10K1/024 , F23C10/24 , F23C2900/10006 , F23J1/02 , F23J2900/01002 , F28D7/12 , F28D13/00 , F28D2021/0045
摘要： Disclosed are cooling and depressurization system equipment, arrangement and methods to cool solid particles from a coal gasifier operating at high temperature and pressure. Ash from the coal needs to be continuously withdrawn from a circulating fluidized bed gasifier to maintain the solids inventory in the gasifier. The system disclosed enables use of conventional materials of construction for heat transfer surfaces. The supports for the cooling surfaces are located on the lower temperature upper section of the primary cooler. The cooled solids along with the fluidizing gas exits the primary cooler to a secondary receiving vessel where the solids can be further cooled by conventional means. The fluidizing and entrained gas entering the secondary vessel is filtered and vented through a vent pressure control valve. The column of cooled solids in the secondary vessel is depressurized by a continuous depressurization system to low pressures which are sufficient for conveying the solids to silos for disposal. The system and methods proposed are equally applicable to many high temperature, high pressure processes that require cooling and depressurization of process solids.
摘要翻译：公开了冷却和减压系统设备，从高温和高压下运行的煤气化炉中固体颗粒冷却的方法。需要从循环流化床气化炉中连续取出煤中的灰分，以保持气化炉中的固体物质。所公开的系统使得能够使用用于传热表面的常规建筑材料。用于冷却表面的支撑件位于主冷却器的较低温度上部。冷却的固体与流化气体一起离开初级冷却器到二次接收容器，其中固体可以通过常规方式进一步冷却。进入二次容器的流化和夹带的气体被过滤并通过排气压力控制阀排出。二次容器中冷却的固体柱通过连续减压系统减压至足以将固体输送到筒仓进行处理的低压。所提出的系统和方法同样适用于需要对工艺固体进行冷却和减压的许多高温高压方法。

8. 发明申请

WO2011084737A2 A HIGH PRESSURE FEEDER AND METHOD OF OPERATION TO FEED GRANULAR OR FINE MATERIALS 审中-公开
标题翻译：高压进料器和进料颗粒或精细材料的操作方法
公开(公告)号：WO2011084737A2
公开(公告)日：2011-07-14
申请号：PCT/US2010/061271
申请日：2010-12-20
申请人： SOUTHERN COMPANY SERVICES, INC. , VIMALCHAND, Pannalal , PENG, Wan, Wang , LIU, Guohai
发明人： VIMALCHAND, Pannalal , PENG, Wan, Wang , LIU, Guohai
IPC分类号： C10J3/50 , G05D7/00
CPC分类号： B01J3/02 , C10J3/30 , C10J3/50 , C10J3/723 , C10J2200/09 , C10J2200/156 , C10J2300/093 , F23K3/02
摘要： 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.
摘要翻译：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。

9. 发明申请

WO2014093308A1 SECOND STAGE GASIFIER IN STAGED GASIFICATION 审中-公开
标题翻译：第二阶段气化器在分类气化
公开(公告)号：WO2014093308A1
公开(公告)日：2014-06-19
申请号：PCT/US2013/074063
申请日：2013-12-10
申请人： SOUTHERN COMPANY
发明人： LIU, Guohai , VIMALCHAND, Pannalal , GUAN, Xiaofeng , PENG, WanWang
IPC分类号： B01J8/18 , B01J8/26 , F23C10/01
CPC分类号： 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
摘要： A second stage gasification unit in a staged gasification integrated process (SGIP) 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.
摘要翻译：公开了分级气化一体化方法（SGIP）流程图和操作方法中的第二级气化装置，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。

10. 发明申请

WO2013090403A1 APPARATUS AND METHODS FOR REGENERATION OF PRECIPITATING SOLVENT 审中-公开
标题翻译：装置和再生方法
公开(公告)号：WO2013090403A1
公开(公告)日：2013-06-20
申请号：PCT/US2012/069204
申请日：2012-12-12
申请人： THE SOUTHERN COMPANY , LIU, Guohai , VIMALCHAND, Pannalal , PENG, WanWang , BONSU, Alexander
发明人： LIU, Guohai , VIMALCHAND, Pannalal , PENG, WanWang , BONSU, Alexander
IPC分类号： B01D53/14 , B01D53/18 , B01D53/62 , B01D53/96
CPC分类号： B01D53/1425 , B01D53/1475 , B01D53/18 , B01D53/62 , B01D53/96 , B01D2257/504 , B01D2258/0283 , Y02C10/04 , Y02C10/06
摘要： A regenerator that can handle rich loaded chemical solvent containing precipitated absorption reaction products is disclosed. The invention is particularly suitable for separating CO 2 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 CO 2 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 CO 2 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 CO 2 gas stream exits the disclosed regenerator and condenser system.
摘要翻译：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。

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