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    • 84. 发明申请
    • Heat Pump Distillation
    • 热泵蒸馏
    • US20110266131A1
    • 2011-11-03
    • US13182519
    • 2011-07-14
    • Paul A. Sechrist
    • Paul A. Sechrist
    • B01D3/14
    • B01D3/14B01D3/007B01D3/32Y02B30/52
    • A distillation column is disclosed. The column includes a plurality of rectification zones and corresponding stripping zones. Each rectification zone is linked to a heat pump or a stage of a heat pump. Overhead material from the top rectification zone is compressed and used to heat bottoms liquid from the bottom stripping zone. Similarly, overhead material from a lower rectification zone is compressed and used to heat liquid taken from the uppermost or top stripping zone. Optionally, overhead material from a middle rectification zone is compressed and used to heat liquid from a middle stripping zone. A single multiple stage heat pump compressor may be utilized as opposed to a plurality of heat pumps. Because the heat exchanger from each rectification-stripping zone pair has a lower duty, economical stab-in heat exchangers may be utilized.
    • 公开了蒸馏塔。 该柱包括多个整流区和相应的汽提区。 每个整流区域连接到热泵或热泵的阶段。 来自顶部精馏区的顶部材料被压缩并用于从底部汽提区域加热底部液体。 类似地,来自下部精馏区的塔顶材料被压缩并用于加热从最上层或顶部汽提区取出的液体。 任选地,来自中间精馏区的塔顶材料被压缩并用于从中间剥离区加热液体。 可以使用单个多级热泵压缩机,而不是多个热泵。 因为来自每个精馏 - 汽提区对的热交换器具有较低的负荷,所以可以使用经济的刺入式热交换器。
    • 85. 发明授权
    • Heat pump distillation
    • 热泵蒸馏
    • US08002952B2
    • 2011-08-23
    • US11934321
    • 2007-11-02
    • Paul A. Sechrist
    • Paul A. Sechrist
    • B01D1/28B01D3/02F25J3/02
    • B01D3/14B01D3/007B01D3/32Y02B30/52
    • A distillation column is disclosed with a folded design. The column includes a plurality of rectification zones and corresponding stripping zones Each rectification zone is linked to a heat pump or a stage of a heat pump. Overhead vapor from the top rectification zone is compressed and used to heat bottoms liquid from the bottom stripping zone. Similarly, overhead vapor from the middle rectification zone is compressed and used to heat liquid from a middle stripping zone and overhead from a lower rectification zone is compressed and used to heat liquid taken from the uppermost or top stripping zone. A single multiple stage heat pump compressor may be utilized as opposed to a plurality of heat pumps Because the heat exchanger from each rectification-stripping zone pair has a lower duty, economical stab-in heat exchangers may be utilized.
    • 公开了一种具有折叠设计的蒸馏塔。 该柱包括多个整流区和相应的汽提区。每个整流区连接到热泵或热泵的阶段。 来自顶部精馏区的顶部蒸气被压缩并用于从底部汽提区域加热底部液体。 类似地,来自中间精馏区的塔顶蒸气被压缩并用于从中间汽提区加热液体,并且将来自下部精馏区的塔顶馏出物压缩并用于加热从最上层或顶部汽提区取出的液体。 与多个热泵相反,可以使用单个多级热泵压缩机。因为来自每个精馏 - 汽提区对的热交换器具有较低的占空比,所以可以使用经济的刺入式热交换器。
    • 86. 发明授权
    • Splitter with multi-stage heat pump compressor and inter-reboiler
    • 具有多级热泵压缩机和再沸器的分流器
    • US07981256B2
    • 2011-07-19
    • US11937796
    • 2007-11-09
    • David A. WegererPaul A. Sechrist
    • David A. WegererPaul A. Sechrist
    • B01D1/28B01D3/02C07C7/04F25B30/02
    • B01D3/14C07C7/04Y10S203/04Y10S203/08Y10S203/20Y10S203/90C07C11/06
    • A splitter system is disclosed that produces a product stream from a mixed stream of two materials with similar boiling points. A multi-stage heat pump compressor is used in combination with a bottoms reboiler and an intermediate reboiler resulting in reduced utility consumption. The appropriately placed intermediate reboiler enables use of a lower temperature heat source relative to the bottoms reboiler heat source. As a result, a lower pressure overhead vapor stream can be used to deliver heat to both the intermediate and bottoms reboilers, thereby conserving energy. The first stage of the multi-stage heat pump compressor delivers pressurized overhead vapor to the intermediate reboiler and the second stage provides pressurized overhead vapor to the bottoms reboiler. The disclosed design and method lessens the heat pump compressor power consumption and trim condenser duty for a propylene/propane splitter system by over 20%. A third stage of compression upstream of the overhead trim condenser may be used for purposes of making the column pressure and temperatures independent of the trim condenser temperature.
    • 公开了一种分离器系统,其从具有相似沸点的两种材料的混合流产生产物流。 多级热泵压缩机与底部再沸器和中间再沸器组合使用,导致降低的功耗。 适当放置的中间再沸器使得能够使用相对于底​​部再沸器热源的较低温度的热源。 结果,可以使用较低压力的塔顶蒸汽流将热量传递到中间和底部再沸器,从而节省能量。 多级热泵压缩机的第一级将加压的塔顶蒸气输送到中间再沸器,第二级向底部再沸器提供加压的顶部蒸气。 所公开的设计和方法将丙烯/丙烷分配器系统的热泵压缩机功率消耗和修整电容器负载降低20%以上。 顶置式冷凝器上游的第三级压缩可用于使柱压力和温度与修整冷凝器温度无关。
    • 88. 发明申请
    • HYDROCARBON CONVERSION UNIT INCLUDING A REACTION ZONE RECEIVING TRANSFERRED CATALYST
    • 油气转化单元,包括接收转移催化剂的反应区
    • US20100316541A1
    • 2010-12-16
    • US12858888
    • 2010-08-18
    • David J. FecteauPaul A. SechristChristopher Naunheimer
    • David J. FecteauPaul A. SechristChristopher Naunheimer
    • B01J8/08
    • C10G11/14B01J8/125B01J2219/00006C10G35/10C10G49/10C10G2300/4012
    • One exemplary embodiment can include an apparatus for transferring catalyst from a regeneration zone to a reaction zone in a hydrocarbon conversion unit. The hydrocarbon conversion unit can include a transfer vessel, and first, second, and third lines. The transfer vessel can transfer regenerated catalyst from the regeneration zone at a first pressure to the reaction zone at a second pressure where the second pressure is greater than the first pressure. Generally, the first line communicates the catalyst to the transfer vessel and is coupled to a first valve to allow catalyst into the transfer vessel and the second line communicates the catalyst from the transfer vessel and is coupled to a second valve to allow catalyst out of the transfer vessel. The third line for allowing the passage of gas therethrough may be at a pressure higher than the first pressure having a first portion communicating with the transfer vessel and having a second portion coupled to third and fourth valves. Each of the third and fourth valves can have a first position that is open and a second position that is closed, which may correspond, respectively, to the opening and closing of the first and second valves to allow gas to pass therethrough.
    • 一个示例性实施例可以包括用于将催化剂从再生区转移到烃转化单元中的反应区的装置。 烃转化单元可以包括转移容器,以及第一,第二和第三管线。 转移容器可以在第二压力大于第一压力的第二压力下将再生催化剂在第一压力下从再生区转移到反应区。 通常,第一管线将催化剂连接到转移容器并且耦合到第一阀以允许催化剂进入转移容器,并且第二管线将催化剂与转移容器连通并且联接到第二阀,以使催化剂脱离 转运船。 用于允许气体通过的第三条线可以处于比第一压力高的压力,该第一压力具有与转移容器连通的第一部分,并具有连接到第三和第四阀的第二部分。 第三阀和第四阀中的每一个可以具有打开的第一位置和关闭的第二位置,其可以分别对应于第一和第二阀的打开和关闭以允许气体通过。