会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • PRODUCING ISOBUTENE BY CRACKING MTBE
    • 通过分解MTBE,现代制造异丁烯
    • WO2011000696A3
    • 2011-06-16
    • PCT/EP2010058424
    • 2010-06-16
    • EVONIK OXENO GMBHWINTERBERG MARKUSROETTGER DIRKRIX ARMINBUKOHL REINERLUH WALTERWIEDERHOLD HOLGERSCHILLING GUNNARBOEING CHRISTIAN
    • WINTERBERG MARKUSROETTGER DIRKRIX ARMINBUKOHL REINERLUH WALTERWIEDERHOLD HOLGERSCHILLING GUNNARBOEING CHRISTIAN
    • C07C11/09C07C1/20F28D7/00
    • C07C11/09C07C1/20
    • 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.
    • 本发明涉及一种用于通过MTBE裂解制备异丁烯的方法,其特征在于,通过以下步骤:a)MTBE合成; 包含在一个或多个含甲醇的流(VIII,IX),酸性离子交换剂,以获得流含MTBE和TBA(IV)的烃混合物,(II),用甲醇(III)含异丁烯的,B)的MTBE反应 分离; 含MTBE和TBA从电流(IV)中,c)MTBE裂解流(V)的蒸馏分离; 含有至少异丁烯,甲醇,MTBE和水和任选的TBA的电流(V)的裂解在在气相中,以获得一个流(VI)的非均相催化剂,D)异丁烯去除; 的电流(VI)的蒸馏分离,得到流(VII),(VI)中的功率的每个包含多于50质量%含有甲醇,TBA和水的水平,和含异丁烯的电流(XVII), e)水分离; 蒸馏除去水从流(VII)至低于1%的质量百分比,以获得流(VIII)中,f)返回; 在MTBE合成含甲醇的流(VIII)的完全或部分再循环。 本发明的下一个主题是具有下列元素的管装置:i)所述管束,ⅱ)管板,III)挡板,静脉内)内护套,ⅳ)承压外护套,其包括至少一个入口和出口,ⅵ)的壳空间包括热 发射或接收流体,其特征在于,该内壳没有间隙或具有小的间隙与所述附着在管束偏转板的长度和管板连接,其中在围绕在两侧的内包层中的壳空间中的流体。
    • 4. 发明申请
    • PROCESS FOR PRODUCTION OF ISOBUTENE BY CRACKING MTBE-CONTAINING MIXTURES
    • 通过剪切含MTBE的混合物制备异丁醇的方法
    • WO2010006832A3
    • 2010-04-15
    • PCT/EP2009056069
    • 2009-05-19
    • EVONIK OXENO GMBHWINTERBERG MARKUSROETTGER DIRKBUKOHL REINERWIEDERHOLD HOLGERLUH WALTER
    • WINTERBERG MARKUSROETTGER DIRKBUKOHL REINERWIEDERHOLD HOLGERLUH WALTER
    • C07C1/20C07C11/09
    • C07C1/20C07C7/04C07C2521/12C07C2523/02C07C11/09
    • The invention relates to a process for production of isobutene from MTBE-containing mixtures which comprises the following steps a) cracking, in a reactor R, a mixture obtained from an MTBE-containing feedstock (1a) and/or an MTBE-containing stream (13, 5), delivering a stream (6) of reaction products consisting of isobutene, methanol, MTBE and also by-products, wherein these consist 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 from 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) separation of stream (6) by distillation into a stream (7) which contains the product isobutene and low boilers and a stream (8) which contains MTBE, methanol, medium boilers and high boilers; c) separating the stream (8) by distillation obtaining an MTBE-containing stream (10, 12) and a methanol-containing high-boiler stream (9, 11); d) recirculating an MTBE-containing stream (10, 12, 13) to step a) of the process, wherein the medium-boilers are completely or partially separated off from the medium-boiler-rich streams (10, 12) upstream of step d).
    • 本发明涉及一种方法,用于从含MTBE的混合物制备异丁烯,包括:a)分离的步骤在反应器R A(从含MTBE原料1a)和/或含MTBE的流(13,5 )由异丁烯,甲醇,MTBE和副产物组成的反应产物流(6),这些产物来自a1)高沸点化合物,沸点范围高于55℃,压力为0.1MPa; a2)在0.1MPa的压力下沸程为12-55℃的中级锅炉; 和a3)在0.1MPa的压力下具有低于12℃的沸程的低沸点物; b)将所述物流(6)蒸馏分离成含有产物异丁烯和低沸物的物流(7)和含有MTBE,甲醇,介质锅炉和高沸点物流的物流(8); c)蒸馏分离物流(8)以获得含有MTBE的物流(10,12)和含甲醇的高沸点物流(9,11); d)回收在步骤a的方法的含MTBE的流(10,12,13)),其中,被执行(从中间沸点组分丰富的流10,12)到步骤d)之前的介质锅炉的完全或部分分离。