Process for the desulfurization of petroleum feeds
    2.
    发明授权
    Process for the desulfurization of petroleum feeds 有权
    石油进料脱硫工艺

    公开(公告)号:US06592750B2

    公开(公告)日:2003-07-15

    申请号:US09886542

    申请日:2001-06-21

    IPC分类号: C10G4500

    摘要: A process for the hydrodesulfurization of a cracked naphtha stream is disclosed where very little of the valuable olefins are saturated. The process is a two staged process wherein the H2S is removed between the stages to prevent recombinant mercaptans formation. Because the H2S is removed between the stages milder conditions can be used in the second stage polishing reactor to achieve the same desulfurization levels with less olefin loss.

    摘要翻译: 公开了一种裂化石脑油流的加氢脱硫方法,其中很少有价值的烯烃是饱和的。 该方法是两阶段方法,其中在阶段之间除去H 2 S以防止重组硫醇形成。 由于H2S在两段之间被去除,较温和的条件可用于第二阶段抛光反应器,以达到与较少烯烃损失相同的脱硫水平。

    Process for the desulfurization of petroleum feeds
    3.
    发明授权
    Process for the desulfurization of petroleum feeds 有权
    石油进料脱硫工艺

    公开(公告)号:US06303020B1

    公开(公告)日:2001-10-16

    申请号:US09502509

    申请日:2000-02-11

    IPC分类号: C10G4500

    摘要: A process for the hydrodesulfurization of a cracked naphtha stream is disclosed where very little of the valuable olefins are saturated. The process is a two staged process wherein the H2S is removed between the stages to prevent recombinant mercaptans formation. Because the H2S is removed between the stages milder conditions can be used in the second stage polishing reactor to achieve the same desulfurization levels with less olefin loss.

    摘要翻译: 公开了一种裂化石脑油流的加氢脱硫方法,其中很少有价值的烯烃是饱和的。 该方法是两阶段方法,其中在阶段之间除去H 2 S以防止重组硫醇形成。 由于H2S在两段之间被去除,较温和的条件可用于第二阶段抛光反应器,以达到与较少烯烃损失相同的脱硫水平。

    Etherification--hydrogenation process
    4.
    发明授权
    Etherification--hydrogenation process 失效
    醚化氢化工艺

    公开(公告)号:US5628880A

    公开(公告)日:1997-05-13

    申请号:US600251

    申请日:1996-02-12

    摘要: A process for removing dienes from etherification uses a hydrogenation zone in the reactor distillation column above the etherification zone. MTBE is produced and the unreacted C.sub.4 stream is also subjected to selective hydrogenation of the butadiene contained in the C.sub.4 feed stream. The C.sub.4 stream is first contacted with methanol in the etherification zone where the MTBE is distilled downward. The unreacted C.sub.4 's then are subjected to selective hydrogenation in the hydrogenation zone where butadiene in the overhead raffinate is reduced by over 90%. The hydrotreated C.sub.4 's are thus suitable for cold acid alkylation or other use wherein butadiene is harmful.

    摘要翻译: 从醚化中除去二烯的方法在醚化区上方的反应器蒸馏塔中使用氢化区。 制备MTBE,并且还对未反应的C4物流进行包含在C 4进料流中的丁二烯的选择性氢化。 首先将C4流与甲醚在醚化区中接触,其中MTBE向下蒸馏。 然后,在氢化区中对未反应的C4进行选择性氢化,其中塔顶残液中的丁二烯减少超过90%。 因此,加氢处理的C4适合于冷酸烷基化或丁二烯有害的其它用途。

    Process and apparatus for catalytic distillations

    公开(公告)号:US07030277B2

    公开(公告)日:2006-04-18

    申请号:US10839401

    申请日:2004-05-05

    摘要: A process for reacting a first component with itself or a second component to produce a third component in which a first material comprising a first component or said first component and a second component is fed to divided wall column having a catalytic distillation structure in at least one of the separate vertical sections of the divided wall column where concurrently: (1) a first component alone or with a second component is contacted with a catalytic distillation structure in a distillation reaction zone thereby catalytically reacting at least a portion of the first component with itself or with the second component to form a product and (2) a first mixture comprising the first component and the product or the first component, the second component and the product; and withdrawing the product from the distillation column reactor; while within the column concurrently with the catalytic reaction and fractionation a second mixture is fractionated, which contains the first component and the product or first and second components (if a second component is present) and the product in a parallel and separate distillation non reaction zone to fractionate the product and withdrawing the product from said distillation non reaction zone. For example, tertiary amyl methyl ether may be prepared by reacting methanol with isoamylene in a C5 stream utilizing a distillation column reactor wherein the distillation column reactor comprises one side of a divided wall column. On one side the product, tertiary amyl methyl ether, is separated from the unreacted methanol and C5's and on the other side the remaining isoamylenes are reacted with methanol and a separation of the tertiary amyl methyl ether and C5's from the methanol/C5 azeotrope is effected.

    Process for desulfurization of cracked naphtha
    6.
    发明授权
    Process for desulfurization of cracked naphtha 失效
    裂化石脑油脱硫工艺

    公开(公告)号:US06946068B2

    公开(公告)日:2005-09-20

    申请号:US09877277

    申请日:2001-06-08

    摘要: A process for concurrently fractionating and hydrotreating of a full range naphtha stream. The full boiling range naphtha stream, for example which is derived from fluid catalytic cracking, is first subjected to simultaneous hydrogenation of the thiophene contained therein and thioetherification and fractionation to remove the mercaptans the light fraction and then to simultaneous hydrodesulfurization and splitting of the bottoms into an intermediate boiling range naphtha and a heavy boiling range naphtha. The three boiling range naphthas are treated separately according to the amount of sulfur in each cut and the end use of each fraction.

    摘要翻译: 一种用于同时分馏和加氢处理全程石脑油流的方法。 首先对来自流化催化裂化的全沸点石脑油流进行同时氢化其中所含的噻吩和硫醚化和分馏以除去轻馏分的硫醇,然后同时加氢脱硫和将塔底分解成 中间沸点石脑油和重沸点石脑油。 根据每个切割中的硫量和每个馏分的最终使用,分别处理三个沸点范围的石脑油。

    Process and apparatus for catalytic distillations
    7.
    发明授权
    Process and apparatus for catalytic distillations 有权
    催化蒸馏工艺和设备

    公开(公告)号:US06930206B1

    公开(公告)日:2005-08-16

    申请号:US10167196

    申请日:2002-06-11

    摘要: A process for reacting a first component with itself or a second component to produce a third component in which a first material comprising a first component or said first component and a second component is fed to divided wall column having a catalytic distillation structure in at least one of the separate vertical sections of the divided wall column where concurrently: (1) a first component alone or with a second component is contacted with a catalytic distillation structure in a distillation reaction zone thereby catalytically reacting at least a portion of the first component with itself or with the second component to form a product and (2) a first mixture comprising the first component and the product or the first component, the second component and the product; and withdrawing the product from the distillation column reactor; while within the column concurrently with the catalytic reaction and fractionation a second mixture is fractionated, which contains the first component and the product or first and second components (if a second component is present) and the product in a parallel and separate distillation non reaction zone to fractionate the product and withdrawing the product from said distillation non reaction zone. For example, tertiary amyl methyl ether may be prepared by reacting methanol with isoamylene in a C5 stream utilizing a distillation column reactor wherein the distillation column reactor comprises one side of a divided wall column. On one side the product, tertiary amyl methyl ether, is separated from the unreacted methanol and C5's and on the other side the remaining isoamylenes are reacted with methanol and a separation of the tertiary amyl methyl ether and C5's from the methanol/C5 azeotrope is effected.

    摘要翻译: 一种使第一组分与其自身或第二组分反应以产生第三组分的方法,其中将包含第一组分或所述第一组分的第一组分或第二组分加入到具有催化蒸馏结构的至少一种 的分隔壁柱的单独的竖直部分,其中同时:(1)单独的第一组分或与第二组分的第一组分在蒸馏反应区中与催化蒸馏结构接触,从而使第一组分的至少一部分与其自身的催化反应 或与第二组分形成产物和(2)包含第一组分和产物或第一组分,第二组分和产物的第一混合物; 并从蒸馏塔反应器中取出产物; 同时在塔内同时进行催化反应和分馏,将第二混合物分馏,其含有第一组分和产物或第一和第二组分(如果存在第二组分),并且产物在平行和分离的蒸馏非反应区 以分馏产物并从所述蒸馏非反应区抽出产物。 例如,叔戊基甲基醚可以通过使用蒸馏塔反应器的甲醇与C 6 C 5流中的异戊烯反应制备,其中蒸馏塔反应器包括分隔壁塔的一侧。 一方面,将产物叔戊基甲基醚与未反应的甲醇和C 5 S分离,另一侧将剩余的异戊烯与甲醇反应并分离叔戊基甲基醚 和来自甲醇/ C 5 H 3共沸物的C 5 S 5。

    Process for the production of an ultra low sulfur
    9.
    发明授权
    Process for the production of an ultra low sulfur 失效
    生产超低硫的工艺

    公开(公告)号:US06416659B1

    公开(公告)日:2002-07-09

    申请号:US09640835

    申请日:2000-08-17

    IPC分类号: C10G4502

    CPC分类号: C10G45/02 C10G2300/4087

    摘要: A process for the hydrodesulfurization of a diesel boiling range petroleum fraction wherein the hydrodesulfurization is carried out concurrently with a fractional distillation in a distillation column reactor containing a catalyst bed. The diesel is fed above the catalyst bed and hydrogen is fed below the bed. The bottoms from the distillation column reactor is then separated by fractional distillation to remove a bottoms containing most of the unconverted sulfur.

    摘要翻译: 一种柴油沸程石油馏分的加氢脱硫方法,其中加氢脱硫在含有催化剂床的蒸馏塔反应器中与分馏同时进行。 柴油进料到催化剂床上方,氢气被送入床底。 然后通过分馏分离来自蒸馏塔反应器的塔底物以除去含有大部分未转化的硫的塔底物。