Process for BTX purification
    52.
    发明授权
    Process for BTX purification 失效
    BTX纯化方法

    公开(公告)号:US06500996B1

    公开(公告)日:2002-12-31

    申请号:US09428762

    申请日:1999-10-28

    IPC分类号: C07C266

    CPC分类号: C10G69/08 C10G59/02 C10G61/02

    摘要: A process for the removal of hydrocarbon contaminants, such as dienes and olefins, from an aromatics reformate by contacting an aromatics reformate stream with a hydrotreating catalyst and/or a molecular sieve. The hydrotreating catalyst substantially converts all dienes to oligomers and partially converts olefins to alkylaromatics. The molecular sieve converts the olefins to alkylaromatics. The process provides an olefin depleted product which can be passed through a clay treater to substantially convert the remaining olefins to alkylaromatics. The hydrotreating catalyst has a metal component of nickel, cobalt, chromium, vanadium, molybdenum, tungsten, nickel-molybdenum, cobalt-nickel-molybdenum, nickel-tungsten, cobalt-molybdenum or nickel-tungsten-titanium, with a nickel molybdenum/alumina catalyst being preferred. The molecular sieve is an intermediate pore size zeolite, preferably MCM-22. The clay treatment can be carried out with any clay suitable for treating hydrocarbons.

    摘要翻译: 通过使芳族化合物重整产物流与加氢处理催化剂和/或分子筛接触,从芳族化合物重整产物中除去烃类污染物如二烯和烯烃的方法。 加氢处理催化剂基本上将所有二烯转化为低聚物并将烯烃部分转化为烷基芳族化合物。 分子筛将烯烃转化为烷基芳族化合物。 该方法提供烯烃消耗产物,其可以通过粘土处理器以将剩余的烯烃基本上转化为烷基芳族化合物。 加氢处理催化剂具有镍,钴,铬,钒,钼,钨,镍 - 钼,钴 - 镍 - 钼,镍 - 钨,钴 - 钼或镍 - 钨 - 钛的金属组分和镍钼/氧化铝 催化剂是优选的。 分子筛是中等孔径的沸石,优选MCM-22。 粘土处理可以用适合于处理碳氢化合物的任何粘土进行。

    Production of monocycloalkyl aromatic compounds
    53.
    发明授权
    Production of monocycloalkyl aromatic compounds 有权
    单环烷基芳族化合物的生产

    公开(公告)号:US06489529B1

    公开(公告)日:2002-12-03

    申请号:US09490435

    申请日:2000-01-24

    IPC分类号: C07C1512

    摘要: There is described a process for the transalkylation of a polycycloalkyl aromatic compound, particularly the transalkylation of dicyclohexylbenzene to produce monocyclohexylbenzene. The process comprises contacting the polycycloalkyl aromatic compound with benzene in the presence of a catalyst selected from the group consisting of an acidic solid comprising a Group IVB metal oxide modified with an oxyanion of a Group VIBA metal oxide, TEA-mordenite, zeolite beta and a porous crystalline material having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom. Preferably the catalyst is a WOx/ZrO2 material.

    摘要翻译: 描述了多环烷基芳族化合物的烷基转移,特别是二环己基苯的烷基转移以产生单环己基苯的方法。 该方法包括在选自以下的催化剂的存在下使多环烷基芳族化合物与苯接触,所述催化剂选自包含用VIBA族金属氧化物的氧阴离子改性的IVB族金属氧化物,TEA-丝光沸石,β沸石和 具有12.4±0.25,6.9±0.15,3.57±0.07和3.42±0.07埃的d间距最大值的X射线衍射图的多孔结晶材料。 优选地,催化剂是WO x / ZrO 2材料。

    Production of phenol using reactive distillation
    54.
    发明授权
    Production of phenol using reactive distillation 失效
    使用反应蒸馏生产苯酚

    公开(公告)号:US06410804B1

    公开(公告)日:2002-06-25

    申请号:US09468465

    申请日:1999-12-21

    IPC分类号: C07C3708

    摘要: A process for producing phenol and acetone from cumene hydroperoxide comprises: i) introducing a cumene hydroperoxide feed into a reactive distillation column comprising at its upper portion a distillation column and at its lower portion a catalyst bed, at a point above said catalyst bed; ii) mixing a diluting portion of acetone with said cumene hydroperoxide to provide a diluted cumene hydroperoxide; iii) directing said diluted cumene hydroperoxide through said catalyst bed under conditions sufficient to effect the exothermic decomposition of said cumene hydroperoxide to a product comprising a heavy fraction comprising phenol and a vaporized light fraction comprising acetone; iv) withdrawing said heavy fraction as bottoms from said column; v) flowing said vaporized light fraction upwards through the catalyst bed and at least a portion of the reactive distillation column; vi) condensing said light fraction to provide at least a portion of said diluting portion of acetone for subsequent mixing with said cumene hydroperoxide feed; vii) optionally withdrawing a portion of said light fraction as overhead from said column; and viii) repeating steps i) through vii). An apparatus for carrying out the process is also provided.

    摘要翻译: 从氢过氧化枯烯生产苯酚和丙酮的方法包括:i)将氢过氧化枯烯进料引入反应性蒸馏塔,反应蒸馏塔在其上部包含蒸馏塔,其下部在催化剂床的上方加入催化剂床; ii 将丙酮的稀释部分与所述异丙基氢过氧化物混合以提供稀释的氢过氧化枯烯; iii)在足以使所述异丙基氢过氧化氢发生放热分解的产物的条件下将所述稀释的氢过氧化枯烯引导通过所述催化剂床,所述产物包含含有苯酚 以及包含丙酮的气化轻馏分; iv)从所述塔中抽出所述重馏分作为塔底物; v)使所述蒸发的轻馏分向上通过催化剂床和至少一部分反应蒸馏塔; vi)将所述轻馏分冷凝至 提供所述丙稀稀释部分的至少一部分用于随后的混合物 g用所述异丙基氢过氧化物进料; vii)任选地将所述轻馏分的一部分从塔中取出; 和viii)重复步骤i)至vii)。 还提供了一种用于执行该过程的装置。

    Catalytic conversion of methanol to linear olefins
    60.
    发明授权
    Catalytic conversion of methanol to linear olefins 失效
    甲醇催化转化为直链烯烃

    公开(公告)号:US5491273A

    公开(公告)日:1996-02-13

    申请号:US340787

    申请日:1994-11-17

    IPC分类号: C07C1/20 C07C1/00

    摘要: This invention covers a process for converting a feed comprising at least one lower aliphatic alcohol having from 1 to 3 carbon atoms or a corresponding ether of such an alcohol to hydrocarbon products comprising linear olefins. The process comprises contacting the feed in a reaction zone with a catalyst comprising material having a large crystal ferrierite aluminosilicate structure. An effluent is withdrawn from the reaction zone, which comprises linear olefins. Linear olefins may then be separated from the effluent. The aliphatic alcohol having from 1 to 3 carbons is generally methanol and the preferred ether is dimethyl ether. ZSM-35 is the preferred large crystal ferrierite structure of this invention.

    摘要翻译: 本发明涵盖了将包含至少一种具有1至3个碳原子的低级脂族醇或这种醇的相应醚转化为包含线性烯烃的烃产物的方法。 该方法包括使反应区中的进料与含有大晶体镁碱沸石硅铝酸盐结构的材料的催化剂接触。 从反应区取出流出物,该反应区包含直链烯烃。 然后可以将线性烯烃与流出物分离。 具有1至3个碳的脂族醇通常是甲醇,优选的醚是二甲醚。 ZSM-35是本发明优选的大晶体镁碱沸石结构。