Two-stage process for producing diisopropyl ether using catalytic
distillation
    2.
    发明授权
    Two-stage process for producing diisopropyl ether using catalytic distillation 失效
    使用催化蒸馏生产二异丙醚的两阶段方法

    公开(公告)号:US5744645A

    公开(公告)日:1998-04-28

    申请号:US625859

    申请日:1996-04-01

    IPC分类号: C07C41/05 C07C41/42 C07C41/00

    摘要: A process for the efficient production of diisopropyl ether where catalytic distillation is used to increase the yield of product beyond thermodynamic equilibrium limitations has been developed. In a hydration zone the propylene in a feedstock is reacted with water in the presence of a catalyst to effect hydration to produce an effluent stream containing at least water, unreacted propylene, and isopropyl alcohol, and then, in an etherification zone, at least a portion of the effluent stream is further reacted by catalytic distillation in the presence of a catalyst to effect reaction of propylene and isopropyl alcohol to form diisopropyl ether while concurrently separating an organic portion containing the diisopropyl ether and an aqueous portion, and collecting the organic portion containing the diisopropyl ether.

    摘要翻译: 已经开发了一种有效生产二异丙醚的方法,其中使用催化蒸馏来提高产物的产率超过热力学平衡限制。 在水合区中,原料中的丙烯在催化剂存在下与水反应以进行水合以产生至少含有水,未反应的丙烯和异丙醇的流出物流,然后在醚化区中至少 在催化剂存在下,通过催化蒸馏进一步使部分流出物流进行反应,以使丙烯和异丙醇反应形成二异丙醚,同时分离含有二异丙醚和水溶液部分的有机部分,收集含有 二异丙醚。

    Two-stage process for producing diisopropyl ether using catalytic
distillation
    3.
    发明授权
    Two-stage process for producing diisopropyl ether using catalytic distillation 失效
    使用催化蒸馏生产二异丙醚的两阶段方法

    公开(公告)号:US5504258A

    公开(公告)日:1996-04-02

    申请号:US311993

    申请日:1994-09-26

    IPC分类号: C07C41/05 C07C41/42 C07C41/00

    摘要: A process for the efficient production of diisopropyl ether where catalytic distillation is used to increase the yield of product beyond thermodynamic equilibrium limitations has been developed. In a hydration zone the propylene in a feedstock is reacted with water in the presence of a catalyst to effect hydration to produce an effluent stream containing at least water, unreacted propylene, and isopropyl alcohol, and then, in an etherification zone, at least a portion of the effluent stream is further reacted by catalytic distillation in the presence of a catalyst to effect reaction of propylene and isopropyl alcohol to form diisopropyl ether while concurrently separating a propylene rich portion, a diisopropyl ether rich portion and an aqueous portion, and recovering the diisopropyl ether from the diisopropyl ether rich portion.

    摘要翻译: 已经开发了一种有效生产二异丙醚的方法,其中使用催化蒸馏来提高产物的产率超过热力学平衡限制。 在水合区中,原料中的丙烯在催化剂存在下与水反应以进行水合以产生至少含有水,未反应的丙烯和异丙醇的流出物流,然后在醚化区中至少 在催化剂存在下,通过催化蒸馏进一步反应出一部分流出物流,进行丙烯与异丙醇的反应,生成二异丙醚,同时分离富丙烯部分,富含二异丙醚的部分和水分,并回收 二异丙基醚。

    Production of diesel fuel from renewable feedstocks
    8.
    发明授权
    Production of diesel fuel from renewable feedstocks 有权
    从可再生原料生产柴油

    公开(公告)号:US08193400B2

    公开(公告)日:2012-06-05

    申请号:US12403518

    申请日:2009-03-13

    IPC分类号: C10L5/00 C10L1/16 C07C4/00

    摘要: A process has been developed for producing diesel fuel from renewable feedstocks such as plant oils and greases. The process involves treating a renewable feedstock by hydrogenating and deoxygenating i.e. decarboxylating and/or hydrodeoxygenating to provide a hydrocarbon fraction useful as a diesel fuel. If desired, the hydrocarbon fraction can be isomerized to improve cold flow properties. A portion of the hydrogenated and deoxygenated feedstock is selectively separated and then recycled to the treatment zone to increase the hydrogen solubility of the reaction mixture. A diesel range stream or a naphtha range stream, or a mixture of the two streams is used as a rectification agent in the selective hot high pressure hydrogen stripper to decrease the amount of product carried in the overhead.

    摘要翻译: 已经开发了用于从可再生原料如植物油和油脂生产柴油的方法。 该方法包括通过氢化和脱氧处理可再生原料,即脱羧和/或加氢脱氧以提供可用作柴油燃料的烃馏分。 如果需要,烃馏分可以被异构化以改善冷流动性能。 氢化和脱氧原料的一部分被选择性分离,然后再循环到处理区以提高反应混合物的氢溶解度。 在选择性热高压氢气汽提器中使用柴油范围流或石脑油流或两股混合物作为精馏剂,以减少在塔顶馏出物中携带的产物的量。

    PRODUCTION OF DIESEL FUEL FROM BIORENEWABLE FEEDSTOCKS WITH SELECTIVE SEPARATION OF CONVERTED OXYGEN
    9.
    发明申请
    PRODUCTION OF DIESEL FUEL FROM BIORENEWABLE FEEDSTOCKS WITH SELECTIVE SEPARATION OF CONVERTED OXYGEN 有权
    通过选择性分离转化的氧气生产可再生能源的柴油燃料

    公开(公告)号:US20110237852A1

    公开(公告)日:2011-09-29

    申请号:US13156976

    申请日:2011-06-09

    IPC分类号: C10G3/00 C10G99/00

    摘要: A process has been developed for producing diesel boiling range fuel from renewable feedstocks such as plant and animal fats and oils, the process providing for sulfur management. The process involves catalytically treating a renewable feedstock by hydrogenating and deoxygenating to provide a hydrocarbon fraction useful as a diesel boiling range fuel. The hydrocarbon fraction is isomerized to improve cold flow properties. A selective separation such as a hot high pressure hydrogen stripper is used to remove at least the carbon oxides from the first zone effluent before entering the isomerization zone, and to provide liquid recycle to the treating zone at pressure and temperature. A vapor stream is separated from the isomerization effluent and at least carbon dioxide is removed using at least one selective or flexible amine solution absorber. The resulting hydrogen-rich stream is recycled to the deoxygenation reaction zone

    摘要翻译: 已经开发了用于从可再生原料如植物和动物脂肪和油生产柴油沸点燃料的方法,该方法提供硫管理。 该方法涉及通过氢化和脱氧催化处理可再生原料以提供可用作柴油沸程燃料的烃馏分。 烃馏分异构化以改善冷流动性能。 在进入异构化区之前,使用诸如热高压氢气汽提器的选择性分离来从第一区流出物中至少除去碳氧化物,并在压力和温度下向处理区提供液体循环。 将蒸汽流与异构化流出物分离,并使用至少一种选择性或柔性的胺溶液吸收剂除去至少二氧化碳。 将所得富氢流循环至脱氧反应区

    Production of diesel fuel from biorenewable feedstocks with selective separation of converted oxygen
    10.
    发明授权
    Production of diesel fuel from biorenewable feedstocks with selective separation of converted oxygen 有权
    从生物可再生原料生产柴油,并选择性分离转化的氧气

    公开(公告)号:US07982077B2

    公开(公告)日:2011-07-19

    申请号:US12193176

    申请日:2008-08-18

    IPC分类号: C07C1/00 C07C4/00

    摘要: A process has been developed for producing diesel boiling range fuel from renewable feedstocks such as fats and oils from plants and animals where the process provides for sulfur-component management. The process involves catalytically treating a renewable feedstock by hydrogenating and deoxygenating to provide a hydrocarbon fraction useful as a diesel boiling range fuel. A selective separation such as a hot high pressure hydrogen stripper may be used to remove at least the carbon oxides from the first zone effluent and provide a liquid recycle stream at pressure and temperature. A vapor stream is separated from the net process effluent and at least carbon dioxide is removed using at least one selective or flexible amine absorber. The resulting hydrogen-rich stream is recycled to the reaction zone.

    摘要翻译: 已经开发了一种从可再生原料生产柴油沸点燃料的方法,例如来自植物和动物的脂肪和油,其中该方法提供硫成分管理。 该方法涉及通过氢化和脱氧催化处理可再生原料以提供可用作柴油沸程燃料的烃馏分。 选择性分离如热的高压氢气汽提器可用于从第一区流出物中至少除去碳氧化物,并在压力和温度下提供液体循环流。 蒸汽流与净处理流出物分离,并且使用至少一种选择性或柔性胺吸收剂除去至少二氧化碳。 将所得富氢流循环至反应区。