-
公开(公告)号：US06487876B2
公开(公告)日：2002-12-03
申请号：US09801387
申请日：2001-03-08
IPC分类号： F25J300
CPC分类号： C01B3/506 , C01B2203/048 , F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J3/0252 , F25J2200/80 , F25J2210/12 , F25J2215/60 , F25J2215/62 , F25J2270/06 , F25J2270/60
摘要： A method for cooling a process stream in which one of a plurality of open-loop refrigerant streams is cooled by indirect heat exchange with other of the open-loop refrigerant stream in a refrigerant heat exchanger to yield a cooled primary refrigerant stream. The process stream is cooled by indirect heat exchange with a process refrigerant stream in a separate process heat exchanger, wherein the process refrigerant stream comprises at least a portion of the cooled primary refrigerant stream. The method is particularly useful in large process plants which require multiple parallel heat exchangers to cool the process stream.
摘要翻译： 一种用于冷却工艺流的方法，其中多个开环制冷剂流中的一个通过与制冷剂热交换器中的其它开环制冷剂流的间接热交换冷却，以产生冷却的一次制冷剂流。 通过在单独的工艺热交换器中与工艺制冷剂流的间接热交换来冷却工艺流，其中工艺制冷剂流包括冷却的一次制冷剂流的至少一部分。 该方法在需要多个平行热交换器以冷却工艺流的大型工艺设备中特别有用。
-
公开(公告)号：US5802871A
公开(公告)日：1998-09-08
申请号：US951705
申请日：1997-10-16
CPC分类号： F25J3/0233 , F25J3/0209 , F25J3/0257 , F25J2200/80 , F25J2205/02 , F25J2240/12 , Y10S62/927
摘要： Nitrogen is removed from a pressurized feed gas mixture containing nitrogen and methane by cooling, partial condensation, and rectification in one or more dephlegmators. Autorefrigeration is provided by pressure letdown of selected process streams and external refrigeration is not required.
摘要翻译： 通过在一个或多个分馏器中进行冷却，部分冷凝和精馏，从含有氮气和甲烷的加压进料气体混合物中除去氮气。 自动制冷是通过选定工艺流的压力降低而提供的，并且不需要外部制冷。
-
3.发明授权Integrated high pressure NGL recovery in the production of liquefied natural gas 有权综合高压NGL回收液化天然气生产公开(公告)号：US06662589B1
公开(公告)日：2003-12-16
申请号：US10414735
申请日：2003-04-16
IPC分类号： F25J300
CPC分类号： F25J1/0218 , F25J1/0022 , F25J1/005 , F25J1/0052 , F25J1/0072 , F25J1/0217 , F25J1/0231 , F25J1/0241 , F25J1/0271 , F25J1/0292 , F25J3/0209 , F25J3/0233 , F25J3/0242 , F25J3/0247 , F25J2200/02 , F25J2200/74 , F25J2200/92 , F25J2205/50 , F25J2215/64 , F25J2215/66 , F25J2220/62 , F25J2245/02 , F25J2270/12 , F25J2270/60 , F25J2270/66 , F25J2290/50
摘要： Process for the recovery of components heavier than methane from natural gas, wherein the process comprises (a) cooling a natural gas feed to provide a cooled natural gas feed and introducing the cooled natural gas feed into an absorber column at a first location therein; (b) withdrawing from the absorber column a first overhead vapor stream depleted in components heavier than methane and a bottoms stream enriched in components heavier than methane; (c) introducing a methane-rich reflux stream at a second location in the absorber column above the first location; (d) separating the bottoms stream into a stream enriched in methane and one or more streams enriched in components heavier than ethane; and (e) introducing an absorber liquid comprising components heavier than ethane into the absorber column at a location between the first location and the second location.
摘要翻译： 用于从天然气中回收比甲烷重的组分的方法，其中所述方法包括（a）冷却天然气进料以提供冷却的天然气进料，并将冷却的天然气进料引入到其中的第一位置的吸收塔中; （b）从吸收塔中排出一部分比甲烷重的组分，以及富含比甲烷重的组分的底部物流; （c）在第一位置上方的吸收塔中的第二位置处引入富甲烷回流; （d）将底部物流分离成富含甲烷的流和富含比乙烷重的组分的一种或多种流; 和（e）在第一位置和第二位置之间的位置处将包含比乙烷重的组分的吸收剂液体引入吸收塔。
-
公开(公告)号：US06349566B1
公开(公告)日：2002-02-26
申请号：US09663477
申请日：2000-09-15
申请人： Lee Jarvis Howard , Howard Charles Rowles , Randy James Nickel , Gene Anthony Lucadamo , Bruce Moodie Hill
发明人： Lee Jarvis Howard , Howard Charles Rowles , Randy James Nickel , Gene Anthony Lucadamo , Bruce Moodie Hill
IPC分类号： F25J100
CPC分类号： F25J3/0238 , F25J3/0209 , F25J3/0219 , F25J3/0223 , F25J3/0233 , F25J3/0252 , F25J3/0257 , F25J3/0261 , F25J3/0295 , F25J5/007 , F25J2200/80 , F25J2210/12 , F25J2250/10 , F25J2250/20 , F25J2270/12 , F25J2270/66 , F25J2290/30 , F25J2290/50 , F28D9/0068 , Y10S62/903
摘要： Dephlegmator system without headers, collectors, or distributors at the bottom end of feed circuits in plate and fin exchangers operating in condensing or rectifying service. Each dephlegmator is installed within a pressure vessel, thereby eliminating the need for headers, collectors, or distributors at the bottom end of the feed circuits. In an alternative embodiment of the invention, upper and lower segments of the pressure vessel are isolated by a mid-vessel seal between the vessel and dephlegmator walls, and headers or collectors are not required at the upper and lower ends of the feed circuits.
摘要翻译： 分凝器系统，在冷凝或整流服务的板式和翅片式换热器的进料回路底部没有集管，收集器或分配器。 每个分凝器安装在压力容器内，从而消除了在进料回路底端对集管，收集器或分配器的需要。 在本发明的替代实施例中，压力容器的上段和下段通过容器和分凝器壁之间的中间容器密封隔离，并且在进料回路的上端和下端不需要集管或收集器。
-
公开(公告)号：US5741350A
公开(公告)日：1998-04-21
申请号：US677673
申请日：1996-07-08
CPC分类号： C07C7/005 , B01D53/1487 , B01J8/24 , C07C7/11 , C08F6/005 , F25J3/0219 , F25J3/0238 , F25J3/0247 , F25J3/0257 , F25J3/062 , F25J3/064 , F25J3/065 , F25J3/066 , B01D2257/702 , F25J2200/80 , F25J2205/40 , F25J2205/50 , F25J2210/06 , F25J2210/12 , F25J2215/62 , F25J2245/42 , F25J2260/42 , F25J2260/60 , F25J2270/02 , F25J2270/90
摘要： Hydrocarbons are recovered from the product purge gas in an alkene polymerization process by absorption of heavier hydrocarbons from the purge gas by an intermediate hydrocarbon stream to yield a vapor rich in inert gas and alkene monomer. Alkene monomer is condensed and rectified by dephlegmation at low temperatures from the inert gas, flashed and vaporized to provide refrigeration for the condensation step, and recycled to the polymerization process. The intermediate hydrocarbon from the absorption step is recycled to the polymerization process. Optionally a portion of the inert gas is reused for purge gas.
摘要翻译： 在烯烃聚合过程中，通过用中间体烃流吸收来自吹扫气体的较重烃，从而产生富含惰性气体和烯烃单体的蒸汽，从产物吹扫气中回收碳氢化合物。 烯烃单体通过在惰性气体的低温下分馏而冷凝和整流，闪蒸并汽化，为冷凝步骤提供冷却，并循环到聚合过程中。 将来自吸收步骤的中间体烃再循环到聚合过程中。 可选地，一部分惰性气体被再次用于净化气体。
-
6.发明授权Separation of hydrogen-hydrocarbon gas mixtures using closed-loop gas expander refrigeration 有权使用闭环气体膨胀机制冷分离氢 - 烃气体混合物公开(公告)号：US06560989B1
公开(公告)日：2003-05-13
申请号：US10165654
申请日：2002-06-07
申请人： Mark Julian Roberts , Christopher Francis Harris , Christopher Michael Ott , Howard Charles Rowles , Daniel Lewis Longhurst , Brian Alfred McNeil
发明人： Mark Julian Roberts , Christopher Francis Harris , Christopher Michael Ott , Howard Charles Rowles , Daniel Lewis Longhurst , Brian Alfred McNeil
IPC分类号： F25J300
CPC分类号： F25J3/0252 , F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J2200/02 , F25J2200/70 , F25J2205/04 , F25J2210/12 , F25J2235/60 , F25J2270/02 , F25J2270/12 , F25J2270/16 , F25J2270/42 , F25J2270/60 , F25J2270/66 , Y10S62/912 , Y10S62/932
摘要： A method for the recovery of hydrogen and one or more hydrocarbons having one or more carbon atoms from a feed gas containing hydrogen and the one or more hydrocarbons, which process comprises cooling and partially condensing the feed gas to provide a partially condensed feed; separating the partially condensed feed to provide a first liquid stream enriched in the one or more hydrocarbons and a first vapor stream enriched in hydrogen; further cooling and partially condensing the first vapor stream to provide an intermediate two-phase stream; and separating the intermediate two-phase stream to yield a further-enriched hydrogen stream and a hydrogen-depleted residual hydrocarbon stream. Some or all of the cooling is provided by indirect heat exchange with cold gas refrigerant generated in a closed-loop gas expander refrigeration cycle.
摘要翻译： 一种从含有氢气和一种或多种烃的进料气中回收氢气和一种或多种具有一个或多个碳原子的烃的方法，该方法包括冷却并部分冷凝进料气体以提供部分冷凝的进料; 分离部分冷凝的进料以提供富含一种或多种烃的第一液态物流和富含氢的第一蒸气物流; 进一步冷却和部分冷凝第一蒸气流以提供中间两相流; 并分离中间两相流以产生进一步富集的氢气流和贫氢的残余烃流。 通过与在闭环气体膨胀机制冷循环中产生的冷气体制冷剂进行间接热交换来提供部分或全部冷却。
-
公开(公告)号：US06266977B1
公开(公告)日：2001-07-31
申请号：US09552927
申请日：2000-04-19
IPC分类号： F25J100
CPC分类号： F25J3/0242 , F25J3/0219 , F25J3/0238 , F25J2200/80 , F25J2205/02 , F25J2210/12 , F25J2235/60 , F25J2270/14 , F25J2270/16 , F25J2270/40 , F25J2270/42 , F25J2270/60 , F25J2270/66 , Y10S62/912
摘要： C2 and C3 hydrocarbons, particularly ethylene and propylene, are recovered from refinery or petrochemical plant gas mixtures by cooling and fractionating a feed gas mixture containing these hydrocarbons and lighter components. Refrigeration for the process is provided by a closed-loop gas expander refrigeration process cycle which preferably uses nitrogen as the recirculating refrigerant. Cooling and fractionation may be effected in a dephlegmator.
摘要翻译： 通过冷却和分馏含有这些烃和较轻组分的进料气体混合物，从精炼厂或石油化工厂气体混合物中回收C2和C3烃，特别是乙烯和丙烯。 该方法的制冷通过闭环气体膨胀器制冷工艺循环提供，该循环优选使用氮气作为循环制冷剂。 冷却和分馏可以在分凝器中进行。
-
公开(公告)号：US5983665A
公开(公告)日：1999-11-16
申请号：US34052
申请日：1998-03-03
申请人： Lee Jarvis Howard , Howard Charles Rowles , Richard Alan Wright , Christopher Francis Harris , Glenn Eugene Kinard , Robert Newton Davis
发明人： Lee Jarvis Howard , Howard Charles Rowles , Richard Alan Wright , Christopher Francis Harris , Glenn Eugene Kinard , Robert Newton Davis
CPC分类号： F25J3/0238 , F25J1/0022 , F25J1/0045 , F25J1/0052 , F25J1/0207 , F25J1/021 , F25J1/0212 , F25J1/0217 , F25J1/0219 , F25J3/0209 , F25J3/0233 , F25J2200/80 , F25J2215/04 , F25J2215/60 , F25J2270/02 , F25J2270/12 , F25J2270/66 , F25J2270/90
摘要： A high purity methane product is recovered from a feed gas mixture containing methane and one or more hydrocarbons heavier than methane by cooling, condensing, and rectifying the feed in a dephlegmator. The high purity methane product, containing at least 98 mole % methane, can be liquefied and stored for use as a fuel for internal combustion engines. A hydrocarbon product containing components heavier than methane is also recovered.Methane recovery and C.sub.2.sup.+ hydrocarbon product purity can be improved by the use of a combined stripping heat exchanger and feed gas cooler. External refrigeration is utilized and can be supplemented in part by autorefrigeration provided by vaporizing dephlegmator liquid.
摘要翻译： 通过在分馏塔中冷却，冷凝和精馏进料，从含有甲烷和一种或多于甲烷重的烃的进料气体混合物回收高纯度甲烷产物。 含有至少98摩尔％甲烷的高纯度甲烷产物可以液化并储存，用作内燃机的燃料。 含有比甲烷重的组分的烃产物也被回收。 通过使用组合汽提热交换器和进料气体冷却器可以提高甲烷回收率和C2 +烃产物纯度。 使用外部制冷，部分可以通过蒸发分凝器液体提供的自动制冷来补充。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.015 秒)
