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    Hybrid refrigeration cycle for combustion turbine inlet air cooling
    1.
    发明授权
    Hybrid refrigeration cycle for combustion turbine inlet air cooling 有权
    燃气轮机入口空气冷却的混合制冷循环

    公开(公告)号：US06457315B1

    公开(公告)日：2002-10-01

    申请号：US10020085

    申请日：2001-12-07

    申请人： Rong-Jwyn Lee ,  Jong Juh Chen ,  Jame Yao ,  Douglas G. Elliot ,  Pallav Jain

    发明人： Rong-Jwyn Lee ,  Jong Juh Chen ,  Jame Yao ,  Douglas G. Elliot ,  Pallav Jain

    IPC分类号： F02C100

    CPC分类号： F02C7/143 ,  F02C7/16 ,  F05D2210/14 ,  Y02T50/675

    摘要： A method and apparatus for enhancing the power output and operational efficiency of a combustion turbine system using a combined refrigerant substantially comprising a first refrigerant and a second refrigerant, whereby the combined refrigerant exhibits a total pressure substantially greater than each respective first and second refrigerant at a temperature inside an evaporative chiller. In a preferred embodiment, the combined refrigerant cools turbine inlet air through the exchange of heat from the inlet air, in an air chiller, with a coolant which is cooled by the combined refrigerant in the evaporative chiller. The combined refrigerant, after it is used to cool the coolant in the evaporative chiller, is separated through the use of a liquid absorbent which absorbs the second refrigerant to form a solution pair. The non-absorbed first refrigerant is compressed, condensed and then recirculated to eventually join the second refrigerant which is desorbed from the solution pair in a regenerator. The economic advantage of the present invention is enhanced by thermally linking the heat required to regenerate the second absorptive refrigerant from the solution pair with the hot exhaust of heat available from the gas turbine.

    摘要翻译： 一种用于使用基本上包括第一制冷剂和第二制冷剂的组合制冷剂来提高燃料涡轮机系统的功率输出和操作效率的方法和装置，由此组合的制冷剂表现出总体压力基本上大于相应的第一和第二制冷剂的总压力 蒸发式冷水机内部温度。 在一个优选实施例中，组合的制冷剂通过来自空气冷却器中的入口空气的热量与通过蒸发式冷却器中的组合制冷剂冷却的冷却剂来冷却涡轮机入口空气。 组合的制冷剂在用于冷却蒸发冷却器中的冷却剂之后，通过使用吸收第二制冷剂以形成溶液对的液体吸收剂分离。 未吸收的第一制冷剂被压缩，冷凝，然后再循环，以最终连接在再生器中从溶液对解吸的第二制冷剂。 通过将从溶液对再生第二吸收性制冷剂所需的热与从燃气轮机获得的热的热排出热连接来增强本发明的经济优势。

    Propane recovery methods
    4.
    发明授权
    Propane recovery methods 有权
    丙烷回收方法

    公开(公告)号：US6116050A

    公开(公告)日：2000-09-12

    申请号：US209931

    申请日：1998-12-04

    申请人： Jame Yao ,  Jong Juh Chen ,  Rong-Jwyn Lee ,  Douglas G. Elliot

    发明人： Jame Yao ,  Jong Juh Chen ,  Rong-Jwyn Lee ,  Douglas G. Elliot

    IPC分类号： F25J3/02 ,  F25J3/00

    CPC分类号： F25J3/0242 ,  F25J3/0209 ,  F25J3/0219 ,  F25J3/0233 ,  F25J2200/04 ,  F25J2200/50 ,  F25J2200/74 ,  F25J2200/76 ,  F25J2200/78 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2210/12 ,  F25J2230/60 ,  F25J2235/60 ,  F25J2240/02 ,  F25J2270/02 ,  F25J2270/12 ,  F25J2270/60 ,  F25J2270/88 ,  F25J2280/02 ,  F25J2280/40

    摘要： The present invention is directed to methods for separating and recovering propane, propylene and heavier hydrocarbons, i.e., the C.sub.3 + hydrocarbons, from a gas feed, e.g., raw natural gas or a refinery or petroleum plant gas stream. These methods employ sequentially configured first and second distillation columns, e.g., a de-methanizer tower followed by a de-ethanizer tower. A cooled gas feed condensate is separated in the first column into methane and a liquid phase comprising ethane and heavier hydrocarbons. The liquid phase is separated in the second column into a gas phase primarily comprising ethane and a second liquid phase primarily comprising the desired C.sub.3+ hydrocarbons. At least a portion of the second gas phase is introduced into the first distillation column as an overhead reflux to improve the separation of C.sub.3+ hydrocarbons. The methods of the present invention permit separation and recovery of more than about 99% of the C.sub.3+ hydrocarbons in the gas feed at higher operating pressures. Further, by cooling the second gas phase with a liquid condensed in a lower tray of the first column, significant capital and operating costs may be saved. By using the self refrigeration system, the need for external refrigeration is eliminated and the separation efficiency is improved in the first column. Accordingly, the processes of the present invention result in achieving higher liquid recovery levels with lower capital requirements and significant savings in operation.

    摘要翻译： 本发明涉及用于从气体原料例如原料天然气或炼油厂或石油工厂气流中分离和回收丙烷，丙烯和较重烃（即C 3+烃）的方法。 这些方法采用顺序配置的第一和第二蒸馏塔，例如脱甲烷塔，然后脱乙烷塔。 冷却的气体进料冷凝物在第一塔分离成甲烷和包含乙烷和较重烃的液相。 将液相在第二塔中分离成主要包含乙烷和主要包含所需C 3 +烃的第二液相的气相。 将第二气相的至少一部分作为塔顶回流引入第一蒸馏塔，以改进C3 +烃的分离。 本发明的方法允许在更高的操作压力下分离和回收气体进料中超过约99％的C3 +烃。 此外，通过在第一塔的下塔板中冷凝的液体冷却第二气相，可以节省大量的资本和运营成本。 通过使用自制冷却系统，消除了对外部制冷的需要，并且在第一列中提高了分离效率。 因此，本发明的方法导致获得更高的液体回收水平，具有较低的资本要求和显着的操作节省。

    Internal refrigeration for enhanced NGL recovery
    5.
    发明授权
    Internal refrigeration for enhanced NGL recovery 有权
    内部制冷用于增强NGL恢复

    公开(公告)号：US07257966B2

    公开(公告)日：2007-08-21

    申请号：US11032464

    申请日：2005-01-10

    申请人： Rong-Jwyn Lee ,  Ying Zhang ,  Jame Yao ,  Jong Juh Chen ,  Douglas G. Elliot

    发明人： Rong-Jwyn Lee ,  Ying Zhang ,  Jame Yao ,  Jong Juh Chen ,  Douglas G. Elliot

    IPC分类号： F25J3/00

    CPC分类号： F25J3/0219 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J2200/02 ,  F25J2200/04 ,  F25J2200/40 ,  F25J2200/70 ,  F25J2200/78 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2210/12 ,  F25J2235/60 ,  F25J2240/02 ,  F25J2270/02 ,  F25J2270/12 ,  F25J2270/60 ,  F25J2270/88 ,  F25J2290/40

    摘要： The present invention is directed to methods for improving the efficiency of processes for the recovery of natural gas liquids from a gas feed, e.g., raw natural gas or a refinery or petrochemical plant gas stream. These methods may be employed with most, if not all, conventional separation methods using distillation towers, e.g., a demethanizer and/or deethanizer column. The methods of the present invention involve installing an internal refrigeration system consisting of an open cycle refrigerant withdrawn from a distillation column and a closed cycle refrigerant derived from the open cycle refrigeration system. A separator is installed downstream of the recycle compressor discharge cooler in the open cycle refrigeration scheme. At least a portion of liquid withdrawn from this separator is used as a closed cycle refrigerant by indirect heat exchange with the inlet gas or other process streams. Thus a closed refrigeration cycle enhances the performance of the open refrigeration cycle.

    摘要翻译： 本发明涉及用于提高天然气液体从天然气或原料天然气或炼油厂或石油化工厂气体流中回收天然气液体的方法的效率的方法。 这些方法可以与使用蒸馏塔的大多数（如果不是全部）常规分离方法一起使用，例如脱甲烷塔和/或脱乙烷塔。 本发明的方法涉及安装由从蒸馏塔排出的开放循环制冷剂和来自开式循环制冷系统的封闭循环制冷剂组成的内部制冷系统。 在开放循环制冷方案中，在循环压缩机排放冷却器的下游安装分离器。 从该分离器排出的至少一部分液体通过与入口气体或其它工艺流进行间接热交换而被用作封闭循环制冷剂。 因此，封闭的制冷循环增强了开放制冷循环的性能。

    Lean reflux process for high recovery of ethane and heavier components
    6.
    发明授权
    Lean reflux process for high recovery of ethane and heavier components 有权
    精益回流过程，用于乙烷和较重组分的高回收率

    公开(公告)号：US06244070B1

    公开(公告)日：2001-06-12

    申请号：US09454272

    申请日：1999-12-03

    申请人： Rong-Jwyn Lee ,  Jame Yao ,  Jong Juh Chen ,  Douglas G. Elliot

    发明人： Rong-Jwyn Lee ,  Jame Yao ,  Jong Juh Chen ,  Douglas G. Elliot

    IPC分类号： F25J300

    CPC分类号： F25J3/0238 ,  F25J3/0209 ,  F25J3/0233 ,  F25J2200/04 ,  F25J2200/70 ,  F25J2200/78 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2230/08 ,  F25J2230/60 ,  F25J2235/60 ,  F25J2240/02 ,  F25J2245/02 ,  F25J2270/88 ,  F25J2270/90

    摘要： A simple, efficient, and cost effective process for separating components of a feed gas, e.g., containing methane and heavier hydrocarbons has been devised. First, feed gas is condensed to provide a vapor component and a liquid component. The vapor component is divided into at least a first, major portion a second portion, and a remaining portion. The second portion is directed to a lean reflux absorber, and the remaining portion is condensed and fed to the top of the lean reflux absorber. A bottom fluid stream, generally a liquid intermediate product, is recovered from the bottom of the lean reflux absorber, and lean vapor is recovered from the top of the lean reflux absorber. The liquid component, the first, major portion of the first vapor component, the liquid product from the bottom of the lean reflux absorber, and the lean vapor from the top of the lean reflux absorber are all fed to different feed points on a cryogenic distillation column. An optional cold side reboiler may be used to bring the cooling and heating curves into a more parallel relationship to improve process efficiency.

    摘要翻译： 已经设计了用于分离进料气体的组分（例如含有甲烷和较重烃）的简单，有效和成本有效的方法。 首先，进料气体被冷凝以提供蒸汽组分和液体组分。 蒸气成分至少分成第一部分，第二部分和第二部分，剩余部分。 第二部分被引导到贫回流吸收器，并且剩余部分被冷凝并进料到贫回流吸收器的顶部。 从贫回流吸收器的底部回收底部流体流，通常为液体中间产物，并从贫回流吸收器的顶部回收贫蒸汽。 液体组分，第一蒸气组分的第一个主要部分，来自贫回流吸收器的底部的液体产物和来自贫回流吸收器顶部的贫蒸汽都全部进料到低温蒸馏的不同进料点 柱。 可以使用可选的冷侧再沸器来使冷却和加热曲线进入更平行的关系，以提高加工效率。

    Enhanced NGL recovery processes
    9.
    发明授权
    Enhanced NGL recovery processes 失效
    增强的NGL恢复过程

    公开(公告)号：US5992175A

    公开(公告)日：1999-11-30

    申请号：US987183

    申请日：1997-12-08

    申请人： Jame Yao ,  Jong Juh Chen ,  Douglas G. Elliot

    发明人： Jame Yao ,  Jong Juh Chen ,  Douglas G. Elliot

    IPC分类号： F25J3/02

    CPC分类号： F25J3/0238 ,  F25J3/0209 ,  F25J3/0219 ,  F25J3/0233 ,  F25J3/0242 ,  F25J2200/02 ,  F25J2200/40 ,  F25J2200/70 ,  F25J2205/04 ,  F25J2210/12 ,  F25J2240/02 ,  F25J2245/02 ,  F25J2270/12 ,  F25J2270/60 ,  F25J2270/88 ,  F25J2280/02

    摘要： The present invention is directed to methods for improving the efficiency and economy of processes for the recovery of natural gas liquids (NGL) from a gas feed, e.g., raw natural gas or a refinery or petrochemical plant gas stream. These methods may be employed with most, if not all, conventional separation methods using a distillation tower, e.g., a demethanizer or deethanizer column. In the methods of the present invention, a portion of a hydrocarbon liquid condensed on a chimney tray disposed below the lowest feed tray of the column is withdrawn from the tower. This withdrawn liquid hydrocarbon is expanded and heated to produce a two-phase system for separation into a heavy, liquid hydrocarbon product and a vapor phase for recycle to the column, preferably as a stripping gas. The withdrawn hydrocarbon liquid is preferably heated by indirect heat exchange with the inlet gas, thus reducing or eliminating the external refrigeration requirements of the process. The expanded, heated vapor recycled to the column increases the ethane and propane concentration in the column, thus reducing the tray temperature profile and increasing the separation efficiency. Accordingly, the column may be operated at lower temperatures and higher pressures, resulting in significant energy savings and economies of operation.

    摘要翻译： 本发明涉及用于提高天然气液体（NGL）从原料天然气或炼油厂或石油化工厂气体流中回收天然气液体（NGL）的方法的效率和经济性的方法。 使用蒸馏塔的大多数（如果不是全部）常规分离方法可以使用这些方法，例如脱甲烷塔或脱乙烷塔。 在本发明的方法中，冷凝在设置在塔的最低进料盘下方的烟囱式塔板上的一部分烃液体从塔中排出。 将该取出的液体烃膨胀和加热以产生用于分离成重质液体烃产物和气相的两相系统，用于再循环至塔，优选作为汽提气体。 取出的烃液体优选通过与入口气体的间接热交换来加热，从而减少或消除了该方法的外部制冷要求。 再循环到塔中的膨胀的加热蒸气增加了塔中的乙烷和丙烷浓度，从而降低了塔盘温度分布并提高了分离效率。 因此，该柱可以在较低的温度和更高的压力下操作，导致显着的能量节省和操作的经济性。