Spherical catalysts to convert hydrocarbons to light olefins
    11.
    发明授权
    Spherical catalysts to convert hydrocarbons to light olefins 有权
    将烃转化为轻质烯烃的球形催化剂

    公开(公告)号:US07314963B2

    公开(公告)日:2008-01-01

    申请号:US10951359

    申请日:2004-09-28

    IPC分类号: C07C4/06

    摘要: The present invention comprises a process for producing propylene comprising the steps of contacting an olefin feed containing between about 40 and about 80 wt-% olefins and between about 20 and about 60 wt-% olefins and aromatics with a spherical catalyst to form a cracked product, the catalyst comprising about 30 to about 80 wt-% of a crystalline zeolite, the reaction conditions including a temperature from about 500° to 650° C., a hydrocarbon partial pressure of 70 to 280 kPa (10 to 40 psia), a liquid hourly space velocity in the range of 5 to 40 hr−1 and wherein propylene comprises at least 90 mol-% of the total C3 products.

    摘要翻译: 本发明包括一种生产丙烯的方法,包括以下步骤:将含有约40至约80重量%的烯烃和约20至约60重量%的烯烃和芳族化合物的烯烃进料与球形催化剂接触以形成裂化产物 ,催化剂包含约30至约80重量%的结晶沸石,反应条件包括约500℃至650℃的温度,70至280kPa(10至40psia)的烃分压, 在5至40小时-1的范围内的液时空速,其中丙烯占总C 3 N 3产物的至少90摩尔%。

    Production of ethers by the reaction of alcohols and olefins
    13.
    发明授权
    Production of ethers by the reaction of alcohols and olefins 失效
    通过醇和烯烃的反应生产醚

    公开(公告)号:US5015783A

    公开(公告)日:1991-05-14

    申请号:US445255

    申请日:1989-12-04

    IPC分类号: C07C41/06

    摘要: Processes for the production of ethers from alcohols and isoolefins are disclosed. Isoolefins having four to five carbon atoms per molecule are combined with a monohydroxy alcohol having from one to five carbon atoms per molecule and with a recycle stream comprising alcohol and water to form an etherification zone feed stream which is passed through an etherification zone to produce the desired ether. The effluent from the etherification zone is separated into an ether product and an aqueous product containing unreacted alcohol which is recycled to provide a portion of the etherification zone feed stream. Distillation can be employed to separate the effluent from the etherification zone into a bottoms product stream, comprising the ether, a distillate product comprising other hydrocarbons and the above-mentioned recycle stream. When producing ethyl-tertiary-butyl ether (ETBE), azeotropic grade ethanol, i.e., about 5 vol. % water, is preferably utilized. The utilization of the alcohol/water recycle stream can obviate the need for additional alcohol recovery from the distillate product.

    摘要翻译: 公开了从醇和异烯烃生产醚的方法。 每分子具有4至5个碳原子的异烯烃与每分子具有1至5个碳原子的单羟基醇和包含醇和水的再循环料流组合以形成醚化区进料流,其通过醚化区以产生 所需的醚。 来自醚化区的流出物被分离成醚产物和含有未反应的醇的含水产物,其被再循环以提供一部分醚化区进料流。 可以使用蒸馏将来自醚化区的流出物分离成塔底产物流,其包含醚,包含其它烃的馏出物产物和上述循环物流。 当生产乙基叔丁基醚(ETBE)时,共沸级乙醇即约5体积% %的水。 酒精/水循环流的利用可以避免从馏出物产品中再次进行酒精回收的需要。

    Integrated etherification process with isomerization pretreatment
    14.
    发明授权
    Integrated etherification process with isomerization pretreatment 失效
    综合醚化过程与异构化预处理

    公开(公告)号:US4754078A

    公开(公告)日:1988-06-28

    申请号:US020806

    申请日:1987-03-02

    IPC分类号: C07C5/27 C07C41/06

    CPC分类号: C07C41/06 C07C5/2791

    摘要: A multistep hydrocarbon conversion process for the production of ethers including methyl tertiary butyl ether (MTBE) from light paraffins and alcohols is disclosed. A mixture of C.sub.4 isoparaffins, normal paraffins, an etherification recycle and butane isomerization effluent enter a deisobutanizer column. Normal paraffins withdrawn from the fractionator are isomerized and returned to the fractionator, and isoparaffins are withdrawn from the fractionator and dehyrogenated. The resulting olefins enter an etherification zone for reaction of isobutene with a C.sub.2 -C.sub.5 alcohol. Unreacted paraffins and olefins comprise the etherification effluent entering the deisobutanizer. Normal butanes and olefins are withdrawn as a sidecut from the deisobutanizer. Hydrogenation of the sidecut saturates any olefins contained therein which would interfere with the isomerization of normal butanes. The saturated sidecut passes to an isomerization zone and a mixture of isobutane and normal butane is recycled to the deisobutanizer. In a highly perferred embodiment, spent catalyst from the isomerization zone fulfills the catalyst requirement of the dehydrogenation zone.

    摘要翻译: 公开了一种用于从轻链烷烃和醇生产包括甲基叔丁基醚(MTBE)的醚的多步烃转化方法。 C4异构烷烃,正链烷烃,醚化再循环和丁烷异构化流出物的混合物进入脱异丁烷塔。 从分馏器中取出的正链烷烃被异构化并返回到分馏器中,并从分馏器中取出异链烷烃并进行脱氢。 所得烯烃进入醚化区以使异丁烯与C 2 -C 5醇反应。 未反应的链烷烃和烯烃包含进入脱异丁烷的醚化流出物。 正丁烷和烯烃作为脱离异构化剂的副反应物被排出。 旁路的氢化使其中含有的任何烯烃饱和会干扰正常丁烷的异构化。 饱和侧面经过异构化区,异丁烷和正丁烷的混合物再循环到脱异丁烷。 在高度推断的实施方案中,来自异构化区域的废催化剂满足脱氢区的催化剂需求。

    Preparing a light-olefin containing product stream from an oxygenate-containing feed steam using reactors directing a flow of a fluidized dual-function catalyst system
    15.
    发明授权
    Preparing a light-olefin containing product stream from an oxygenate-containing feed steam using reactors directing a flow of a fluidized dual-function catalyst system 有权
    使用引导流化双功能催化剂体系流的反应器从含氧化合物的进料蒸汽制备含轻烯烃的产物流

    公开(公告)号:US08735639B2

    公开(公告)日:2014-05-27

    申请号:US12755632

    申请日:2010-04-07

    IPC分类号: B01J8/00 C07C2/00

    摘要: The present process provides a method for converting an oxygenate-containing feed stream to an olefin-containing product stream. The method includes: (1) providing a first fluidized catalytic reactor for converting methanol to propylene, the first reactor having a fluidized catalyst system comprising a first catalyst and a second catalyst; (2) providing a second fluidized catalytic reactor communicating with the first fluidized catalytic reactor for cracking heavy olefins having four carbon atoms or greater into propylene, the second reactor having the fluidized catalyst system; (3) providing an oxygenate containing feed to the first reactor; and (4) fluidizing the catalyst system with the oxygenate containing feed.

    摘要翻译: 本发明方法提供了将含氧化合物的进料流转化为含烯烃的产物流的方法。 该方法包括:(1)提供用于将甲醇转化为丙烯的第一流化催化反应器,所述第一反应器具有包含第一催化剂和第二催化剂的流化催化剂体系; (2)提供与第一流化催化反应器连通的第二流化催化反应器,用于将具有四个或更多碳原子的重质烯烃裂解成丙烯,第二反应器具有流化催化剂体系; (3)向第一反应器提供含氧化合物进料; 和(4)用含氧化合物进料使催化剂体系流化。

    Preparing A Light-Olefin Containing Product Stream from an Oxygenate-Containing Feed Steam Using Reactors Directing a Flow of a Fluidized Dual-Function Catalyst System
    16.
    发明申请
    Preparing A Light-Olefin Containing Product Stream from an Oxygenate-Containing Feed Steam Using Reactors Directing a Flow of a Fluidized Dual-Function Catalyst System 有权
    使用引导流化双功能催化剂体系流动的反应器,从含氧化合物的进料蒸汽制备含有轻烯烃的轻质烯烃

    公开(公告)号:US20100204530A1

    公开(公告)日:2010-08-12

    申请号:US12755632

    申请日:2010-04-07

    IPC分类号: C07C1/20

    摘要: The present invention provides a reactor system for converting an oxygenate-containing feed stream to an olefin-containing product stream. The system includes: (1) a first fluidized catalytic reactor for converting methanol to propylene, the first reactor having a fluidized catalyst system comprising a first catalyst and a second catalyst; (2) a second fluidized catalytic reactor communicating with the first fluidized catalytic reactor for cracking heavy olefins having four carbon atoms or greater into propylene, the second reactor having the fluidized catalyst system; (3) wherein the first catalyst is a non-zeolite molecular sieve catalyst; and (4) wherein the second catalyst is a zeolite molecular sieve catalyst.

    摘要翻译: 本发明提供了一种用于将含氧化合物的进料流转化为含烯烃的产物流的反应器系统。 该系统包括:(1)用于将甲醇转化成丙烯的第一流化催化反应器,所述第一反应器具有包含第一催化剂和第二催化剂的流化催化剂体系; (2)与第一流化催化反应器连通的第二流化催化反应器,用于将具有四个或更多碳原子的重质烯烃裂解成丙烯,第二反应器具有流化催化剂体系; (3)其中第一催化剂是非沸石分子筛催化剂; 和(4)其中第二催化剂是沸石分子筛催化剂。

    Preparing a light-olefin containing product stream from an oxygenate-containing feed stream using reactors directing a flow of a fluidized dual-function catalyst system
    17.
    发明授权
    Preparing a light-olefin containing product stream from an oxygenate-containing feed stream using reactors directing a flow of a fluidized dual-function catalyst system 有权
    使用引导流化双功能催化剂体系流的反应器从含氧化合物的进料流中制备含轻烯烃的产物流

    公开(公告)号:US07722825B1

    公开(公告)日:2010-05-25

    申请号:US11461288

    申请日:2006-07-31

    IPC分类号: F27B15/00 C07C1/00

    摘要: The present invention provides a reactor system for converting an oxygenate-containing feed stream to an olefin-containing product stream. The system includes: (1) a first fluidized catalytic reactor for converting methanol to propylene, the first reactor having a fluidized catalyst system comprising a first catalyst and a second catalyst; (2) a second fluidized catalytic reactor communicating with the first fluidized catalytic reactor for cracking heavy olefins having four carbon atoms or greater into propylene, the second reactor having the fluidized catalyst system; (3) wherein the first catalyst is a non-zeolite molecular sieve catalyst; and (4) wherein the second catalyst is a zeolite molecular sieve catalyst.

    摘要翻译: 本发明提供了一种用于将含氧化合物的进料流转化为含烯烃的产物流的反应器系统。 该系统包括:(1)用于将甲醇转化成丙烯的第一流化催化反应器,所述第一反应器具有包含第一催化剂和第二催化剂的流化催化剂体系; (2)与第一流化催化反应器连通的第二流化催化反应器,用于将具有四个或更多碳原子的重质烯烃裂解成丙烯,第二反应器具有流化催化剂体系; (3)其中第一催化剂是非沸石分子筛催化剂; 和(4)其中第二催化剂是沸石分子筛催化剂。

    Adsorptive removal of carbonyl impurities from oxygenated organic liquids
    18.
    发明授权
    Adsorptive removal of carbonyl impurities from oxygenated organic liquids 失效
    从含氧有机液体中吸附去除羰基杂质

    公开(公告)号:US06346645B1

    公开(公告)日:2002-02-12

    申请号:US09551642

    申请日:2000-04-18

    IPC分类号: C07C5112

    CPC分类号: C07C51/12 C07C51/48 C07C53/08

    摘要: Carbonyl compounds (e.g. acetone and acetaldehyde) are often present as impurities in oxygenated organic liquids such as acetic acid made by the carbonylation of methanol or in phenol produced by the oxidation of cumene. These impurities can render petrochemical products unsuitable for long-term storage or otherwise adversely affect downstream processing operations. It has now been found that detrimental carbonyl impurities can be easily removed from oxygenated organic liquids by contact with resins having amine functional groups.

    摘要翻译: 羰基化合物(例如丙酮和乙醛)通常作为杂质存在于氧化的有机液体中,例如通过羰基化甲醇或通过异丙苯的氧化产生的苯酚制得的乙酸。 这些杂质可能导致石化产品不适合长期储存或以其他方式不利地影响下游加工操作。 现在已经发现,通过与具有胺官能团的树脂接触,可以容易地从有氧氧化有机液体中除去有害的羰基杂质。