Process for cooling the stream leaving an ethylbenzene dehydrogenation reactor
    1.
    发明授权
    Process for cooling the stream leaving an ethylbenzene dehydrogenation reactor 有权
    用于冷却离开乙苯脱氢反应器的流的方法

    公开(公告)号:US08450547B2

    公开(公告)日:2013-05-28

    申请号:US12744683

    申请日:2008-11-21

    CPC classification number: C07C7/09 C07C5/333 C07C2523/745 C07C15/46

    Abstract: The present invention is a process for the production of styrene monomer from ethylbenzene comprising the steps of: a) catalytically dehydrogenating said ethylbenzene in the presence of steam thereby catalytically producing a dehydrogenation effluent gas containing essentially unreacted ethylbenzene, styrene monomer, hydrogen, steam and divinylbenzene; b) quenching said effluent gas with an aqueous reflux in at least a quenching column to cool said effluent gas, and thereby obtaining a gas at the overhead and in the bottom a liquid stream warmer than the aqueous reflux; c) condensing said overhead gas thereby producing a liquid organic phase, an aqueous phase and a gaseous phase; d) using a portion or the whole of said aqueous phase of step c) as reflux for said step b) of quenching; e) sending to a decanter the liquid stream obtained at step b) to recover an aqueous phase and an organic phase.

    Abstract translation: 本发明是一种由乙苯生产苯乙烯单体的方法,包括以下步骤:a)在蒸汽存在下催化脱氢所述乙苯,从而催化产生基本上未反应的乙苯,苯乙烯单体,氢气,蒸汽和二乙烯基苯的脱氢流出气体 ; b)在至少一个淬火塔中用含水回流淬火所述流出气体以冷却所述流出气体,从而在顶部和底部获得比含水回流加热的液体流的气体; c)冷凝所述塔顶气体,从而产生液体有机相,水相和气相; d)使用步骤c)的所述水相的一部分或全部作为所述步骤b)的回流淬火; e)将在步骤b)中获得的液体流送至滗析器以回收水相和有机相。

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    2.
    发明申请
    "PROCESS FOR REMOVING OXYGENATED CONTAMINANTS FROM AN HYDROCARBONSTREAM" 审中-公开
    “从油气藏中除去氧化污染物的方法”

    公开(公告)号:US20130172653A1

    公开(公告)日:2013-07-04

    申请号:US13517065

    申请日:2010-12-20

    Abstract: The present invention is a process for removing oxygenated contaminants and water from an hydrocarbon stream comprising: introducing the contaminated hydrocarbon stream in a gaseous phase in an absorption zone, contacting said hydrocarbon stream in said absorption zone at a pressure of at least 5 bars, advantageously in the range 5 to 40 bars with an alcohol capable to absorb water and oxygenated contaminants at conditions effective to produce an overhead hydrocarbon stream having a reduced oxygenated contaminants and water content and an absorbent bottoms stream comprising the alcohol, hydrocarbons and having an enhanced oxygenated contaminants and water content, sending the overhead of the absorption zone to a wash column (referred to as the high pressure water wash column) at a pressure of at least 5 bars, advantageously in the range 5 to 40 bars, essentially washed with water at conditions effective to produce an overhead hydrocarbon stream having a reduced oxygenated contaminants and an aqueous bottoms stream having an enhanced oxygenated contaminants content. Advantageously the process is further comprising: sending the bottoms stream from the absorption zone to a distillation column (referred to as the alcohol distillation column) operating at a pressure of less than 3 bars absolute and advantageously at a pressure in the range 1-3 bars absolute at conditions effective to produce an overhead comprising essentially oxygenated contaminants and hydrocarbons, optionally treated to recover the hydrocarbons, an alcohol bottoms stream comprising water and essentially free of hydrocarbons and oxygenated contaminants, sending said alcohol bottoms to the process which has produced the hydrocarbon stream comprising oxygenated contaminants and water to be purified.

    Abstract translation: 本发明是一种从烃流中除去氧化污染物和水的方法,包括:将污染的烃物流引入吸收区中的气相,有利地在所述吸收区中以至少5巴的压力接触所述烃流 在5至40巴的范围内具有能够在有效地产生具有降低的氧化污染物和水含量的塔顶烃流的条件下吸收水和含氧污染物的醇,以及包含醇,烃和具有增强的氧化污染物的吸收性底部物流 和水含量,在至少5巴,有利地在5至40巴的范围内,将吸收区的塔顶馏出物送入洗涤塔(称为高压水洗涤塔),基本上用水条件 有效地产生具有减少的氧化污染物的塔顶烃流 以及具有增强的氧化污染物含量的水性底部料流。 有利地,该方法还包括:将塔底物流从吸收区送至蒸馏塔(称为醇蒸馏塔),其工作压力小于3巴绝对压​​力,有利地为1-3巴压力 在有效地产生包含基本上含氧的污染物和烃的塔顶馏出物的条件下是绝对的,任选地被处理以回收烃,包含水并且基本上不含烃和氧化污染物的醇底部物流,将所述醇底物送入产生烃流的方法 包括氧化污染物和要净化的水。

    Process for removing oxygenated contaminants from an hydrocarbon stream

    公开(公告)号:US08846997B2

    公开(公告)日:2014-09-30

    申请号:US13517065

    申请日:2010-12-20

    Abstract: The present invention is a process for removing oxygenated contaminants and water from an hydrocarbon stream comprising: introducing the contaminated hydrocarbon stream in a gaseous phase in an absorption zone, contacting said hydrocarbon stream in said absorption zone at a pressure of at least 5 bars, advantageously in the range 5 to 40 bars with an alcohol capable to absorb water and oxygenated contaminants at conditions effective to produce an overhead hydrocarbon stream having a reduced oxygenated contaminants and water content and an absorbent bottoms stream comprising the alcohol, hydrocarbons and having an enhanced oxygenated contaminants and water content, sending the overhead of the absorption zone to a wash column (referred to as the high pressure water wash column) at a pressure of at least 5 bars, advantageously in the range 5 to 40 bars, essentially washed with water at conditions effective to produce an overhead hydrocarbon stream having a reduced oxygenated contaminants and an aqueous bottoms stream having an enhanced oxygenated contaminants content. Advantageously the process is further comprising: sending the bottoms stream from the absorption zone to a distillation column (referred to as the alcohol distillation column) operating at a pressure of less than 3 bars absolute and advantageously at a pressure in the range 1-3 bars absolute at conditions effective to produce an overhead comprising essentially oxygenated contaminants and hydrocarbons, optionally treated to recover the hydrocarbons, an alcohol bottoms stream comprising water and essentially free of hydrocarbons and oxygenated contaminants, sending said alcohol bottoms to the process which has produced the hydrocarbon stream comprising oxygenated contaminants and water to be purified.

    PROCESS FOR REMOVING OXYGENATED CONTAMINANTS FROM AN HYDROCARBONSTREAM
    4.
    发明申请
    PROCESS FOR REMOVING OXYGENATED CONTAMINANTS FROM AN HYDROCARBONSTREAM 审中-公开
    从油气藏中去除含氧污染物的方法

    公开(公告)号:US20130178683A1

    公开(公告)日:2013-07-11

    申请号:US13517083

    申请日:2010-12-20

    CPC classification number: C07C7/005 C07C7/11 Y02P30/464 C07C11/02

    Abstract: The present invention is a process for removing oxygenated contaminants and water from an hydrocarbon stream comprising: introducing the contaminated hydrocarbon stream in a gaseous phase in an absorption zone, contacting said hydrocarbon stream in said absorption zone with an absorbent capable to absorb water and oxygenated contaminants at conditions effective to produce, an overhead hydrocarbon stream having a reduced oxygenated contaminants and water content and an absorbent bottoms stream comprising the absorbent, hydrocarbons and having an enhanced oxygenated contaminants and water content, introducing the above absorbent bottoms stream in a stripping zone at conditions effective to produce, an absorbent bottoms stream essentially free of hydrocarbons, oxygenated contaminants and water and an overhead stream comprising essentially hydrocarbons, water and the oxygenated contaminants, recycling the absorbent bottoms stream of the stripping zone to the absorption zone, optionally fractionating the overhead stream from the stripping zone to recover the hydrocarbons, optionally sending the overhead of the absorption zone to a caustic wash to remove the acidic components and recovering an hydrocarbon stream essentially free of water and oxygenated contaminants.

    Abstract translation: 本发明是一种从烃流中除去氧化污染物和水的方法,包括:将污染的烃物流引入吸收区中的气相,使所述吸收区中的所述烃流与吸收水和氧化污染物的吸收剂接触 在有效生产的条件下,具有减少的氧化污染物和水含量的塔顶烃流和包含吸收剂,烃并具有增强的氧化污染物和水含量的吸收性底部物流,将条件下的上述吸收性底部物流引入汽提区 有效地生产基本上不含烃,含氧污染物和水的吸收性底部物流和基本上包含烃,水和含氧污染物的塔顶物流,将汽提区的吸收性底部物流再循环到吸收区, 将来自汽提区的塔顶馏出物交叉回收烃,任选地将吸收区的塔顶馏出物送入苛性洗涤液以除去酸性组分并回收基本上不含水和氧化污染物的烃流。

    Process for Cooling the Stream Leaving an Ethylbenzene Dehydrogenation Reactor
    5.
    发明申请
    Process for Cooling the Stream Leaving an Ethylbenzene Dehydrogenation Reactor 有权
    冷却流出乙苯脱氢反应器的流程的方法

    公开(公告)号:US20110065971A1

    公开(公告)日:2011-03-17

    申请号:US12744683

    申请日:2008-11-21

    CPC classification number: C07C7/09 C07C5/333 C07C2523/745 C07C15/46

    Abstract: The present invention is a process for the production of styrene monomer from ethylbenzene comprising the steps of: a) catalytically dehydrogenating said ethylbenzene in the presence of steam thereby catalytically producing a dehydrogenation effluent gas containing essentially unreacted ethylbenzene, styrene monomer, hydrogen, steam and divinylbenzene; b) quenching said effluent gas with an aqueous reflux in at least a quenching column to cool said effluent gas, and thereby obtaining a gas at the overhead and in the bottom a liquid stream warmer than the aqueous reflux; c) condensing said overhead gas thereby producing a liquid organic phase, an aqueous phase and a gaseous phase; d) using a portion or the whole of said aqueous phase of step c) as reflux for said step b) of quenching; e) sending to a decanter the liquid stream obtained at step b) to recover an aqueous phase and an organic phase.

    Abstract translation: 本发明是一种由乙苯生产苯乙烯单体的方法,包括以下步骤:a)在蒸汽存在下催化脱氢所述乙苯,从而催化产生基本上未反应的乙苯,苯乙烯单体,氢气,蒸汽和二乙烯基苯的脱氢流出气体 ; b)在至少一个淬火塔中用含水回流淬火所述流出气体以冷却所述流出气体,从而在顶部和底部获得比含水回流加热的液体流的气体; c)冷凝所述塔顶气体,从而产生液体有机相,水相和气相; d)使用步骤c)的所述水相的一部分或全部作为所述步骤b)的回流淬火; e)将在步骤b)中获得的液体流送至滗析器以回收水相和有机相。

    Process for Cooling the Stream Leaving an Ethylbenzene Dehydrogenation Reactor
    6.
    发明申请
    Process for Cooling the Stream Leaving an Ethylbenzene Dehydrogenation Reactor 有权
    冷却流出乙苯脱氢反应器的流程的方法

    公开(公告)号:US20130303815A1

    公开(公告)日:2013-11-14

    申请号:US13868755

    申请日:2013-04-23

    CPC classification number: C07C7/09 C07C5/333 C07C2523/745 C07C15/46

    Abstract: The present invention is a process for the production of styrene monomer from ethylbenzene comprising the steps of: a) catalytically dehydrogenating said ethylbenzene in the presence of steam thereby catalytically producing a dehydrogenation effluent gas containing essentially unreacted ethylbenzene, styrene monomer, hydrogen, steam and divinylbenzene; b) quenching said effluent gas with an aqueous reflux in at least a quenching column to cool said effluent gas, and thereby obtaining a gas at the overhead and in the bottom a liquid stream warmer than the aqueous reflux;c) condensing said overhead gas thereby producing a liquid organic phase, an aqueous phase and a gaseous phase;d) using a portion or the whole of said aqueous phase of step c) as reflux for said step b) of quenching;e) sending to a decanter the liquid stream obtained at step b) to recover an aqueous phase and an organic phase.

    Abstract translation: 本发明是一种由乙苯生产苯乙烯单体的方法,包括以下步骤:a)在蒸汽存在下催化脱氢所述乙苯,从而催化产生基本上未反应的乙苯,苯乙烯单体,氢气,蒸汽和二乙烯基苯的脱氢流出气体 ; b)在至少一个淬火塔中用含水回流淬火所述流出气体以冷却所述流出气体,从而在顶部和底部获得比含水回流加热的液体流的气体; c)冷凝所述塔顶气体,从而产生液体有机相,水相和气相; d)使用步骤c)的所述水相的一部分或全部作为所述步骤b)的回流淬火; e)将在步骤b)中获得的液体流送至滗析器以回收水相和有机相。

    Use of Solvent to Decrease Caustic Scrubber Fouling
    7.
    发明申请
    Use of Solvent to Decrease Caustic Scrubber Fouling 失效
    使用溶剂降低苛性洗涤剂结垢

    公开(公告)号:US20130237740A1

    公开(公告)日:2013-09-12

    申请号:US13695076

    申请日:2011-05-03

    Abstract: The present invention is a method of reducing the formation of fouling deposits occurring in a caustic scrubber used to remove acid gases comprising: a) providing a caustic scrubber fed with an alkaline aqueous solution comprising essentially one or more of NaOH, KOH or LiOH, b) providing an olefin-containing hydrocarbon stream, contaminated with oxygenated compounds and acid gases, and said oxygenated compounds are capable to make polymeric fouling deposits in the presence of the alkaline solution of the scrubber, c) sending the above hydrocarbon stream to the caustic scrubber to recover an olefin-containing hydrocarbon stream essentially free of acid gases, wherein, d) an efficient amount of a solvent capable to reduce the formation of fouling deposits is introduced in the caustic scrubber and/or in the alkaline solution fed to the scrubber, e) the liquid outlet of the scrubber is sent to means to separate the solvent from the alkaline solution, f) optionally an additive capable to reduce the conversion of the oxygenated compounds to polymeric fouling deposits in the presence of the alkaline solution of the scrubber is introduced in the caustic scrubber and/or in the alkaline solution fed to the scrubber. In an embodiment the solvent separated from the alkaline solution at step e) is treated to eliminate heavies and recycled at step d). Said treatment can be a stripping or a distillation.In an embodiment the means of step e) to separate the solvent from the alkaline solution are located in the bottom of the scrubber.In an embodiment the caustic scrubber has several stages with various caustic concentrations. The solvent injection and removal can be located at each stage.

    Abstract translation: 本发明是一种减少在用于除去酸性气体的苛性碱洗涤器中发生的结垢沉积物的形成的方法,包括:a)提供碱性洗涤器,所述苛性碱洗涤器用基本上包含NaOH,KOH或LiOH,b )提供含氧化合物烃流,被氧化的化合物和酸性气体污染,所述含氧化合物能够在洗涤器的碱性溶液存在下形成聚合物结垢沉积物; c)将上述烃流送入苛性碱洗涤器 以回收基本上不含酸性气体的含烯烃的烃流,其中,d)将有效量的能够减少结垢沉积物形成的溶剂引入苛性碱洗涤器和/或供给洗涤器的碱性溶液中, e)将洗涤器的液体出口送入将溶剂与碱性溶液分离的方法,f)任选的能够使r 在洗涤器的碱性溶液的存在下,将含氧化合物转化为聚合物结垢沉积物被导入苛性碱洗涤器和/或送入洗涤器的碱性溶液中。 在一个实施方案中,处理在步骤e)从碱性溶液中分离的溶剂以除去重质物并在步骤d)中再循环。 所述处理可以是汽提或蒸馏。 在一个实施方案中,步骤e)将溶剂与碱性溶液分离的方法位于洗涤器的底部。 在一个实施方案中,苛性碱洗涤器具有几个具有各种苛性碱浓度的阶段。 溶剂注入和去除可以位于每个阶段。

    PROCESS FOR REMOVING OXYGENATED CONTAMINANTS FROM AN HYDROCARBON STREAM
    8.
    发明申请
    PROCESS FOR REMOVING OXYGENATED CONTAMINANTS FROM AN HYDROCARBON STREAM 审中-公开
    从油气田中除去含氧污染物的方法

    公开(公告)号:US20130172655A1

    公开(公告)日:2013-07-04

    申请号:US13517076

    申请日:2010-12-20

    Abstract: The present invention is a process for removing oxygenated contaminants and water from an hydrocarbon stream comprising: introducing the contaminated hydrocarbon stream in a gaseous phase in an absorption zone, contacting said hydrocarbon stream in said absorption zone at a pressure of at least 5 bars, advantageously in the range 5 to 40 bars with an alcohol capable to absorb water and oxygenated contaminants at conditions effective to produce an overhead hydrocarbon stream having a reduced oxygenated contaminants and water content and an absorbent bottoms stream comprising the alcohol, hydrocarbons and having an enhanced oxygenated contaminants and water content, sending the overhead of the absorption zone to a wash column (referred to as the high pressure water wash column) at a pressure of at least 5 bars, advantageously in the range 5 to 40 bars, essentially washed with water at conditions effective to produce an overhead hydrocarbon stream having a reduced oxygenated contaminants and an aqueous bottoms stream having an enhanced oxygenated contaminants content. Advantageously the process is further comprising: sending the bottoms stream from the absorption zone to a distillation column (referred to as the alcohol distillation column) operating at a pressure of less than 3 bars absolute and advantageously at a pressure in the range 1-3 bars absolute at conditions effective to produce an overhead comprising essentially oxygenated contaminants and hydrocarbons, optionally treated to recover the hydrocarbons, an alcohol bottoms stream comprising water and essentially free of hydrocarbons and oxygenated contaminants, sending said alcohol bottoms to the process which has produced the hydrocarbon stream comprising oxygenated contaminants and water to be purified.

    Abstract translation: 本发明是一种从烃流中除去氧化污染物和水的方法,包括:将污染的烃物流引入吸收区中的气相,有利地在所述吸收区中以至少5巴的压力接触所述烃流 在5至40巴的范围内具有能够在有效地产生具有降低的氧化污染物和水含量的塔顶烃流的条件下吸收水和含氧污染物的醇,以及包含醇,烃和具有增强的氧化污染物的吸收性底部物流 和水含量,在至少5巴,有利地在5至40巴的范围内,将吸收区的塔顶馏出物送入洗涤塔(称为高压水洗涤塔),基本上用水条件 有效地产生具有减少的氧化污染物的塔顶烃流 以及具有增强的氧化污染物含量的水性底部料流。 有利地,该方法还包括:将塔底物流从吸收区送至蒸馏塔(称为醇蒸馏塔),其工作压力小于3巴绝对压​​力,有利地为1-3巴压力 在有效地产生包含基本上含氧的污染物和烃的塔顶馏出物的条件下是绝对的,任选地被处理以回收烃,包含水并且基本上不含烃和氧化污染物的醇底部物流,将所述醇底物送入产生烃流的方法 包括氧化污染物和要净化的水。

    Use of solvent to decrease caustic scrubber fouling
    9.
    发明授权
    Use of solvent to decrease caustic scrubber fouling 失效
    使用溶剂来减少苛性碱洗涤器污垢

    公开(公告)号:US08722954B2

    公开(公告)日:2014-05-13

    申请号:US13695076

    申请日:2011-05-03

    Abstract: The present invention is a method of reducing the formation of fouling deposits occurring in a caustic scrubber used to remove acid gases comprising: a) providing a caustic scrubber fed with an alkaline aqueous solution comprising essentially one or more of NaOH, KOH or LiOH, b) providing an olefin-containing hydrocarbon stream, contaminated with oxygenated compounds and acid gases, and said oxygenated compounds are capable to make polymeric fouling deposits in the presence of the alkaline solution of the scrubber, c) sending the above hydrocarbon stream to the caustic scrubber to recover an olefin-containing hydrocarbon stream essentially free of acid gases, wherein, d) an efficient amount of a solvent capable to reduce the formation of fouling deposits is introduced in the caustic scrubber and/or in the alkaline solution fed to the scrubber, e) the liquid outlet of the scrubber is sent to means to separate the solvent from the alkaline solution, and wherein the caustic scrubber has several stages with various caustic concentrations, and wherein the solvent injection and removal can be located at each stage.

    Abstract translation: 本发明是一种减少在用于除去酸性气体的苛性碱洗涤器中发生的结垢沉积物的形成的方法,包括:a)提供碱性洗涤器,所述苛性碱洗涤器用基本上包含NaOH,KOH或LiOH,b )提供含氧化合物烃流,被氧化的化合物和酸性气体污染,所述含氧化合物能够在洗涤器的碱性溶液存在下形成聚合物结垢沉积物; c)将上述烃流送入苛性碱洗涤器 以回收基本上不含酸性气体的含烯烃的烃流,其中,d)将有效量的能够减少结垢沉积物形成的溶剂引入苛性碱洗涤器和/或供给洗涤器的碱性溶液中, e)将洗涤器的液体出口送入将溶剂与碱性溶液分离的装置,其中苛性碱洗涤器具有 具有各种苛性碱浓度的几个阶段,并且其中溶剂注入和去除可以位于每个阶段。

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