WORK-UP OF A 3-METHYL-1-BUTENE-CONTAINING MIXTURE
    13.
    发明申请
    WORK-UP OF A 3-METHYL-1-BUTENE-CONTAINING MIXTURE 失效
    一种含3-甲基-1-丁烯的混合物的研究

    公开(公告)号:US20120116140A1

    公开(公告)日:2012-05-10

    申请号:US13375091

    申请日:2010-04-29

    摘要: The invention is a method for processing a mixture containing water, 3-methyl-1-butene and at least one other methylbutene. The method comprises primary distillation of the mixture, giving a gaseous primary overhead product containing methylbutene and water and a water-free primary bottom product containing 3-methyl-1-butene; condensation of the gaseous primary overhead product so as to give a condensate comprising a liquid aqueous phase and a liquid organic phase; separation of the condensate into a liquid aqueous phase and a liquid organic phase; discharge of the liquid aqueous phase; recirculation of the organic phase to the primary distillation; and finally secondary distillation of the water-free primary bottom product from the primary distillation so as to give a secondary overhead product comprising 3-methyl-1-butene and a secondary bottom product. The secondary overhead product obtained has a purity which enables it to be used directly as monomer or comonomer for preparing polymers or copolymers.

    摘要翻译: 本发明是一种处理含有水,3-甲基-1-丁烯和至少一种其它甲基丁烯的混合物的方法。 该方法包括对该混合物进行一次蒸馏,得到含有甲基丁烯和水的气态初级塔顶馏出物和含有3-甲基-1-丁烯的无水初级底物产物; 气态一级塔顶产物的冷凝,以产生包含液态水相和液体有机相的冷凝物; 将冷凝物分离成液态水相和液体有机相; 液体水相的排出; 将有机相再循环至初级蒸馏; 最后从初级蒸馏二次蒸馏无水初级底部产物,得到包含3-甲基-1-丁烯和二级底部产物的二级塔顶产物。 获得的二次塔顶产物具有使其能够直接用作制备聚合物或共聚物的单体或共聚单体的纯度。

    Work-up of a 3-methyl-1-butene-containing mixture
    14.
    发明授权
    Work-up of a 3-methyl-1-butene-containing mixture 失效
    后处理含3-甲基-1-丁烯的混合物

    公开(公告)号:US08415520B2

    公开(公告)日:2013-04-09

    申请号:US13375091

    申请日:2010-04-29

    IPC分类号: C07C7/04

    摘要: The invention is a method for processing a mixture containing water, 3-methyl-1-butane and at least one other methylbutene. The method comprises primary distillation of the mixture, giving a gaseous primary overhead product containing methylbutene and water and a water-free primary bottom product containing 3-methyl-1-butene; condensation of the gaseous primary overhead product so as to give a condensate comprising a liquid aqueous phase and a liquid organic phase; separation of the condensate into a liquid aqueous phase and a liquid organic phase; discharge of the liquid aqueous phase; recirculation of the organic phase to the primary distillation; and finally secondary distillation of the water-free primary bottom product from the primary distillation so as to give a secondary overhead product comprising 3-methyl-1-butene and a secondary bottom product. The secondary overhead product obtained has a purity which enables it to be used directly as monomer or comonomer for preparing polymers or copolymers.

    摘要翻译: 本发明是一种处理含有水,3-甲基-1-丁烷和至少一种其它甲基丁烯的混合物的方法。 该方法包括对该混合物进行一次蒸馏,得到含有甲基丁烯和水的气态初级塔顶馏出物和含有3-甲基-1-丁烯的无水初级底物产物; 气态一级塔顶产物的冷凝,以产生包含液态水相和液体有机相的冷凝物; 将冷凝物分离成液态水相和液体有机相; 液体水相的排出; 将有机相再循环至初级蒸馏; 最后从初级蒸馏二次蒸馏无水初级底部产物,得到包含3-甲基-1-丁烯和二级底部产物的二级塔顶产物。 获得的二次塔顶产物具有使其能够直接用作制备聚合物或共聚物的单体或共聚单体的纯度。

    PRODUCTION OF 3-METHYLBUT-1-EN BY MEANS OF DEHYDRATION OF 3-METHYLBUTANE-1-OL
    15.
    发明申请
    PRODUCTION OF 3-METHYLBUT-1-EN BY MEANS OF DEHYDRATION OF 3-METHYLBUTANE-1-OL 审中-公开
    通过3-甲基丁-1-醇脱水制备3-甲基-1-

    公开(公告)号:US20120136190A1

    公开(公告)日:2012-05-31

    申请号:US13322527

    申请日:2010-04-28

    IPC分类号: C07C1/20

    CPC分类号: C07C1/24 C07C11/10

    摘要: The invention relates to a process for preparing 3-methyl-1-butene by dehydration of 3-methyl-1-butanol over an aluminium-containing oxide in the temperature range from 200 to 450° C. in the gas phase or mixed liquid/gas phase, characterized in that an aluminium-containing oxide having a predominantly mesoporous pore structure whose:a) relative proportion of macropores is less than 15%;b) distribution of the pore diameter has a monomodal maximum in the range of mesopores from 3.6 to 50 nm;c) average pore diameter of all pores is in the range of mesopores and macropores from 5 to 20 nm;d) composition comprises more than 80% of gamma-aluminium oxide, is used.

    摘要翻译: 本发明涉及通过在气相或混合液体/液体中在200-450℃的含铝氧化物上脱水3-甲基-1-丁醇来制备3-甲基-1-丁烯的方法, 气相,其特征在于具有主要介孔孔结构的含铝氧化物:a)大孔相对比例小于15%; b)孔径分布在介孔范围为3.6〜50nm的单峰最大值; c)所有孔的平均孔径在5〜20nm的介孔和大孔的范围内; d)组合物包含大于80%的γ-氧化铝。

    Method for producing low-odor n-butane
    16.
    发明授权
    Method for producing low-odor n-butane 有权
    生产低气味正丁烷的方法

    公开(公告)号:US08846994B2

    公开(公告)日:2014-09-30

    申请号:US13381735

    申请日:2010-05-21

    CPC分类号: C07C9/10 C07C7/10 C07C7/163

    摘要: The invention relates to a method for producing low-odor n-butane by catalytic hydrogenation of a feed mixture. The aim of the invention is to provide such a method, wherein the feed material, in addition to n-butane, n-butene and up to 1 mass % formic acid and/or up to 1 mass % pentanals and/or up to 0.5 mass % pentanols, also comprises carbon monoxide. The aim is achieved by treating the feed mixture in the temperature range of 15 to 120° C. with an aqueous solution of an alkali metal or alkaline earth metal hydroxide in the concentration range of 0.5 to 30 mass % and subsequently subjecting the feed mixture to the catalytic hydrogenation.

    摘要翻译: 本发明涉及通过进料混合物的催化氢化生产低气味正丁烷的方法。 本发明的目的是提供这样的方法,其中除了正丁烷,正丁烯和至多1质量%的甲酸和/或至多1质量%的戊醛和/或至多0.5的进料之外, 质量%戊醇还含有一氧化碳。 目的是通过在0.5〜30质量%的浓度范围内用碱金属或碱土金属氢氧化物的水溶液处理15〜120℃的温度范围内的进料混合物,然后将进料混合物 催化氢化。

    Preparation of isobutene by dissociation of MTBE
    17.
    发明授权
    Preparation of isobutene by dissociation of MTBE 有权
    通过MTBE离解制备异丁烯

    公开(公告)号:US08940951B2

    公开(公告)日:2015-01-27

    申请号:US13381680

    申请日:2010-06-16

    IPC分类号: C07C1/20 C07C11/09

    CPC分类号: C07C11/09 C07C1/20

    摘要: A process for preparing isobutene by dissociation of MTBE, including: a) reaction of isobutene-containing hydrocarbon mixtures, with methanol, present in one or more methanol-containing streams, over acidic ion exchangers to give a stream, containing MTBE and TBA; b) separation of a stream containing MTBE and TBA, from a stream by distillation; c) dissociation of a stream in the gas phase over a heterogeneous catalyst to give a stream containing at least isobutene, methanol, MTBE and water and possibly TBA, d) separation of a stream by distillation to give a stream containing in each case more than 50% by mass of the amounts of methanol, TBA and water present in another stream and a stream containing isobutene, e) separation of water from stream to below 1% by mass by distillation to give a stream, f) total or partial recirculation of the methanol-containing stream.

    摘要翻译: 一种通过MTBE离解制备异丁烯的方法,包括:a)通过酸性离子交换剂使存在于一个或多个含甲醇的物流中的含异丁烯的烃混合物与甲醇反应,得到含有MTBE和TBA的物流; b)通过蒸馏从流中分离含有MTBE和TBA的物流; c)气相中的物流在非均相催化剂上的解离,得到至少含有异丁烯,甲醇,MTBE和水以及可能的TBA的物流,d)通过蒸馏分离物流,得到含有多于 50重量%的甲醇,TBA和存在于另一个流中的水和含有异丁烯的物流,e)通过蒸馏将水从流分离成低于1质量%,得到流,f)全部或部分再循环 含甲醇的流。

    PREPARATION OF ISOBUTENE BY DISSOCIATION OF MTBE
    18.
    发明申请
    PREPARATION OF ISOBUTENE BY DISSOCIATION OF MTBE 有权
    通过MTBE的分离制备ISOBUTEN

    公开(公告)号:US20120142985A1

    公开(公告)日:2012-06-07

    申请号:US13381680

    申请日:2010-06-16

    IPC分类号: C07C1/20 F28F1/00

    CPC分类号: C07C11/09 C07C1/20

    摘要: The invention relates to a method for producing isobutene by cracking MTBE, wherein the following steps are carried out: a) MTBE synthesis; reacting isobutene-containing hydrocarbon mixtures (II) with methanol (III), contained in one or more methanol-containing streams (VIII, IX), on acidic ion exchangers obtaining a stream (IV) containing MTBE and TBA, b) MTBE separation; separating a stream (V) containing MTBE and TBA from stream (IV) by means of distillation, c) MTBE cracking; cracking the stream (V) on a heterogenic catalyst in the gas phase, thus obtaining a stream (VI) which contains at least isobutene, methanol, MTBE, water, and optionally TBA, d) isobutene separation; separating the stream (VI) by means of distillation, thus obtaining a stream (VII) containing more than 50 mass % of the amounts of methanol, TBA, and water contained in stream (VI), and a stream (XVII) containing isobutene, e) water separation; separating, water from the stream (VII) to below 1 mass % by means of distillation, thus obtaining a stream (VIII), f) recirculating; complete or partial recirculation of the methanol-containing stream (VIII) into the MTBE synthesis. The invention further relates to a tube bundle device comprising the following elements: i) tube bundle, ii) tube bottom, iii) deflection plates, iv) inner shell, iv) pressure bearing outer shell, comprising at least one inlet and outlet, vi) shell chamber, comprising a fluid releasing or absorbing heat, characterized in that the inner shell is connected to the deflection plates attached over the length of the tube bundle without a gap, or with a small gap, and is connected to the tube bottom, wherein the fluid present in the shell chamber encloses the inner shell on both sides.

    摘要翻译: 本发明涉及通过裂解MTBE生产异丁烯的方法,其中进行以下步骤:a)MTBE合成; 使含异丁烯的烃混合物(II)与含有一种或多种含甲醇的物流(VIII,IX)中的甲醇(III)在酸性离子交换剂上反应,得到含有MTBE和TBA的物流(Ⅳ),b)MTBE分离; 通过蒸馏从流(IV)分离含有MTBE和TBA的物流(V); c)MTBE裂解; 在气相中的异源催化剂上裂解物流(V),从而获得至少含有异丁烯,甲醇,MTBE,水和任选的TBA的流(VI),d)异丁烯分离; 通过蒸馏分离料流(VI),从而获得含有大于50质量%的流(VI)中所含的甲醇,TBA和水量的流(VII)和含有异丁烯的料流(XVII) e)水分离; 通过蒸馏从水(VII)中将水分离成低于1质量%,从而获得流(VIII),f)再循环; 将含甲醇的物流(VIII)完全或部分再循环到MT​​BE合成中。 本发明还涉及一种管束装置,其包括以下元件:i)管束,ii)管底,iii)偏转板,iv)内壳,iv)承压外壳,包括至少一个入口和出口,vi )壳体,其包括释放或吸收热量的流体,其特征在于,所述内壳连接到在所述管束的长度上连接的所述偏转板,而没有间隙或具有小间隙,并且连接到所述管底部, 其中存在于壳室中的流体在两侧封闭内壳。

    PROCESS FOR PREPARING ISOBUTENE BY CLEAVING MTBE-CONTAINING MIXTURES
    19.
    发明申请
    PROCESS FOR PREPARING ISOBUTENE BY CLEAVING MTBE-CONTAINING MIXTURES 有权
    通过清除含MTBE的混合物制备ISOBUTEN的方法

    公开(公告)号:US20110118523A1

    公开(公告)日:2011-05-19

    申请号:US13054115

    申请日:2009-05-19

    IPC分类号: C07C1/20

    摘要: A process for preparing isobutene from MTBE-containing mixtures, including: a) in a reactor, cleaving a mixture obtained from an MTBE-containing feedstock and/or an MTBE-containing stream, affording a stream of reaction products including isobutene, methanol, MTBE, and by-products, which are a1) high boilers having a boiling range above 55° C. at a pressure of 0.1 MPa, a2) medium boilers having a boiling range of 12 to 55° C. at a pressure of 0.1 MPa, and a3) low boilers having a boiling range below 12° C. at a pressure of 0.1 MPa; b) distillatively separating stream into a stream which contains the isobutene product and low boilers, and a stream which contains MTBE, methanol, medium boilers and high boilers; c) distillatively separating stream to obtain an MTBE-containing stream and a methanol-containing high boiler stream; and d) recycling an MTBE-containing stream into a) of the process, the medium boilers being removed completely or partially before d) from the streams rich in medium boilers.

    摘要翻译: 一种从含MTBE的混合物制备异丁烯的方法,包括:a)在反应器中,裂解从含有MTBE的原料和/或含MTBE的料流获得的混合物,得到包括异丁烯,甲醇,MTBE ,副产物,a1)沸点范围在55℃以上,压力为0.1MPa的高锅炉,a2)沸点范围为12〜55℃,压力为0.1MPa的中等锅炉, 和a3)在0.1MPa的压力下沸点低于12℃的低锅炉; b)蒸馏分离成含有异丁烯产物和低锅炉的料流,以及含有MTBE,甲醇,中等锅炉和高锅炉的料流; c)蒸馏分离料流以获得含MTBE的料流和含甲醇的高锅炉料流; 和d)将含MTBE的流再循环到该方法的一个步骤中,在d)从富含中等锅炉的物流中完全或部分地去除中等锅炉。

    Process for preparing isobutene by cleaving MTBE-containing mixtures
    20.
    发明授权
    Process for preparing isobutene by cleaving MTBE-containing mixtures 有权
    通过裂解含MTBE的混合物制备异丁烯的方法

    公开(公告)号:US08633345B2

    公开(公告)日:2014-01-21

    申请号:US13054115

    申请日:2009-05-19

    IPC分类号: C07C4/02

    摘要: A process for preparing isobutene including cleaving a mixture obtained from an MTBE-containing feedstock and/or an MTBE-containing stream, affording a stream of reaction products consisting of isobutene, methanol, MTBE and by-products, the latter consisting of a1) high boilers having a boiling range above 55° C. at a pressure of 0.1 MPa; a2) medium boilers having a boiling range of 12 to 55° C. at a pressure of 0.1 MPa; and a3) low boilers having a boiling range below 12° C. at a pressure of 0.1 MPa; distillatively separating into a stream which contains the isobutene product and low boilers, and a stream which contains MTBE, methanol, medium boilers and high boilers; distillatively separating to obtain an MTBE-containing stream and a methanol-containing high boiler stream; recycling an MTBE-containing stream in which the medium boilers being removed completely or partially before recycling.

    摘要翻译: 一种制备异丁烯的方法,包括切割由含MTBE的原料和/或含MTBE的料流获得的混合物,得到由异丁烯,甲醇,MTBE和副产物组成的反应产物流,后者由a1)高 锅炉沸点范围在55℃以上,压力为0.1MPa; a2)沸点范围为12〜55℃,压力为0.1MPa的中压锅炉; 和a3)在0.1MPa的压力下沸点低于12℃的低锅炉; 蒸馏分离成含有异丁烯产物和低锅炉的料流,以及含有MTBE,甲醇,中等锅炉和高锅炉的料流; 蒸馏分离得到含MTBE的料流和含甲醇的高锅炉料流; 回收含MTBE的流,其中中等锅炉在再循环之前被完全或部分去除。