Process for alcohol production by selective ether decomposition
    81.
    发明授权
    Process for alcohol production by selective ether decomposition 失效
    通过选择性醚分解生产酒精的方法

    公开(公告)号:US07399891B2

    公开(公告)日:2008-07-15

    申请号:US11147919

    申请日:2005-06-08

    Abstract: This invention relates to a process for the production of an alcohol, the process comprising (a) reacting an olefin and water in the presence of a catalyst under conditions sufficient to form a crude alcohol stream comprising alcohol, and a dialkyl ether; (b) separating at least a portion of the crude alcohol stream into an alcohol-containing stream and a dialkyl ether stream; (c) contacting at least a portion of the dialkyl ether stream with an ether decomposition catalyst, the ether decomposition catalyst comprising a mixed metal oxide having the following composition XmYnZpOq where X is at least one metal selected from Group 4 of the Periodic Table of Elements, Y is at least one metal selected from Group 3 (including the Lanthanides and Actinides) and Group 6 of the Periodic Table of Elements and Z is at least one metal selected from Groups 7, 8, and 11 of the Periodic Table of Elements; m, n, p, and q are the atomic ratios of their respective components and, when m is 1, n is from about 0.01 to about 0.75, p is from 0 to about 0.1, and q is the number of oxygen atoms necessary to satisfy the valence of the other components, to form a crude dialkyl ether decomposition stream comprising alcohol and olefin; (d) recovering at least a portion of the olefin from the crude dialkyl ether decomposition stream; and (e) recycling at least a portion of the olefin recovered in step (d) to step (a).

    Abstract translation: 本发明涉及一种生产醇的方法,该方法包括(a)在足以形成包含醇和二烷基醚的粗醇物流的条件下,在催化剂存在下使烯烃和水反应; (b)将至少一部分粗醇流分离成含醇流和二烷基醚流; (c)使至少一部分二烷基醚料流与醚分解催化剂接触,所述醚分解催化剂包含具有以下组成的混合金属氧化物: 其中X是选自元素周期表第4族的至少一种金属,Y是选自第3族(包括镧系元素)中的至少一种金属 和锕系元素)和元素周期表第6族,Z是选自元素周期表第7,8和11族中的至少一种金属; m,n,p和q是它们各自成分的原子比,当m为1时,n为约0.01至约0.75,p为0至约0.1,q为必需的氧原子数 满足其他组分的化合价,形成包含醇和烯烃的粗二烷基醚分解物流; (d)从粗二烷基醚分解流中回收至少一部分烯烃; 和(e)将步骤(d)中回收的烯烃的至少一部分再循环到步骤(a)。

    Method of high pressure and high capacity oxygenate conversion with catalyst exposure cycle
    84.
    发明申请
    Method of high pressure and high capacity oxygenate conversion with catalyst exposure cycle 有权
    用催化剂曝光循环的高压和高容量含氧化合物转化方法

    公开(公告)号:US20070232844A1

    公开(公告)日:2007-10-04

    申请号:US11698511

    申请日:2007-01-26

    Abstract: A gas-solids reaction system is provided for improving product recovery in a multiple reactor reaction system. An oxygenate feedstock, desirably of high concentration in oxygenate, is reacted with a catalyst having a low to modest acidity and a Si/Al2 ratio of from 0.10 to 0.32. The reaction occurs in a reaction zone of a fluidized bed reactor at an oxygenate partial pressure of at least 45 psia and a reactor gas superficial velocity of at least 10 ft/s, conveying catalyst through the reaction zone to a circulation zone. The catalyst undergoes displacement with an inert gas in the circulation zone at a displacement gas superficial velocity of at least 0.03 m/s, after which at least a portion, preferably a large portion is returned to the reaction zone. The catalyst has a residence time in the circulation zone of at least twice that of the residence time of catalyst in the reaction zone. Extraordinary catalyst activity at high olefin selectivity results despite insignificant changes in coke on catalyst and coke yield when compared to lower pressure operations.

    Abstract translation: 提供了一种气体 - 固体反应系统,用于改善多反应器反应体系中的产物回收。 含氧化合物的含氧化合物原料,优选在含氧化合物中的高浓度与具有低至适度酸度和0.10 / 0.32的Si / Al 2 O比的催化剂反应。 反应在流化床反应器的反应区中发生,氧化分压至少为45psia,反应器气体表观速度为至少10ft / s,将催化剂通过反应区输送到循环区。 催化剂在循环区中以惰性气体置换,位移气体空速为至少0.03m / s,此后至少一部分,优选大部分返回到反应区。 催化剂在循环区中的停留时间至少是催化剂在反应区中的停留时间的两倍。 尽管与较低压力操作相比,尽管催化剂上的焦炭和焦炭产率都没有显着变化,但是在高烯烃选择性方面具有特殊的催化剂活性。

    Conversion of oxygenates to olefins
    87.
    发明申请
    Conversion of oxygenates to olefins 有权
    含氧化合物转化为烯烃

    公开(公告)号:US20060025646A1

    公开(公告)日:2006-02-02

    申请号:US10909014

    申请日:2004-07-30

    Abstract: A process is described for converting an oxygenate-containing feedstock into one or more olefins in which the feedstock is contacted in a reaction zone with a fluidized bed of a particulate catalyst composition comprising a molecular sieve and at least one metal oxide having an uptake of carbon dioxide at 100° C. of at least 0.03 mg/m2 of the metal oxide whereby at least part of the feedstock is converted into a product stream comprising one or more olefins and a carbonaceous material is deposited on the catalyst composition to produce a coked catalyst composition. The coked catalyst composition is separated from the product stream and divided into at least first and second portions. The first portion of the coked catalyst composition is contacted with a regeneration medium in a regeneration zone under conditions to remove at least part of the carbonaceous material from the coked catalyst composition and produce a regenerated catalyst composition, which is subsequently recycled to the reaction zone. The second portion of the coked catalyst composition is also recycled to the reaction zone but without being initially contacted with a regeneration medium.

    Abstract translation: 描述了一种用于将含氧化合物的原料转化成一种或多种烯烃,其中原料在反应区中与包含分子筛和至少一种具有碳吸收性的金属氧化物的颗粒催化剂组合物的流化床接触的烯烃 二氧化碳在100℃下为至少0.03mg / m 2的金属氧化物,由此至少部分原料转化为包含一种或多种烯烃的产物流,并将碳质材料沉积在 用于生产焦化催化剂组合物的催化剂组合物。 将焦炭催化剂组合物与产物流分离并分成至少第一和第二部分。 焦化催化剂组合物的第一部分与再生区中的再生介质接触,在从焦炭催化剂组合物中除去至少一部分含碳材料的条件下,并产生再生的催化剂组合物,随后再循环到反应区。 焦炭催化剂组合物的第二部分也被循环到反应区,但不最初与再生介质接触。

    Production of phenol using reactive distillation
    90.
    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

    Abstract: 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.

    Abstract translation: 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。

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