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    Sulfuric acid catalyzed alkylation process
    1.
    发明授权
    Sulfuric acid catalyzed alkylation process 有权

    公开(公告)号：US11639322B2

    公开(公告)日：2023-05-02

    申请号：US17470034

    申请日：2021-09-09

    申请人： UOP LLC

    发明人： Christopher P. Nicholas ,  Susie C. Martins ,  David E. Mackowiak ,  Hayim Abrevaya ,  Joel T. Walenga

    IPC分类号： C07C2/62

    摘要： A process for sulfuric acid catalyzed alkylation involving the use of surfactants which form bi-continuous micro-emulsions with the sulfuric acid and the hydrocarbon is described. The bi-continuous phase facilitates and improves the sulfuric acid catalyzed alkylation reactions. The concentration of the surfactant is selected based on the type of olefin feed. Easy to alkylate feeds, such as 2-butene, use lower concentrations of surfactant, while feeds which are harder to alkylate, such as propene or isobutene, use higher concentrations of the surfactant. In addition, increasing the concentration of sulfuric acid when a surfactant is included resulted in higher calculated RON. The use of a surfactant and a high concentration of sulfuric acid can provide a calculated RON over 100 and close to theoretical yields.

    Reverse acid and hydrocarbon cascading in alkylation
    3.
    发明授权
    Reverse acid and hydrocarbon cascading in alkylation 有权

    公开(公告)号：US11286215B2

    公开(公告)日：2022-03-29

    申请号：US17097176

    申请日：2020-11-13

    申请人： LUMMUS TECHNOLOGY LLC

    发明人： Zan Liu ,  Peter Loezos ,  Jackeline Medina ,  Romain Lemoine

    IPC分类号： C07C2/62 ,  B01J19/24

    摘要： A cascade reactor scheme with acid and hydrocarbon flowing in reverse directions. The systems and processes for alkylation of olefins herein may include providing a first olefin to a first alkylation zone, and a second olefin to a second alkylation zone. Isoparaffin may be provided to the first alkylation zone. The isoparaffin and first olefin may be contacted with a partially spent sulfuric acid in the first alkylation zone to form a spent acid phase and a first hydrocarbon phase including alkylate and unreacted isoparaffin. The first hydrocarbon phase and second olefin may be contacted with a sulfuric acid feed in the second alkylation zone to form a second hydrocarbon phase, also including alkylate and unreacted isoparaffin, and the partially spent sulfuric acid that is fed to the first alkylation zone. Further, the second hydrocarbon phase may be separated, recovering an isoparaffin fraction and an alkylate product fraction.

    REVERSE ACID AND HYDROCARBON CASCADING IN ALKYLATION
    5.
    发明申请
    REVERSE ACID AND HYDROCARBON CASCADING IN ALKYLATION 有权

    公开(公告)号：US20210061731A1

    公开(公告)日：2021-03-04

    申请号：US17097176

    申请日：2020-11-13

    申请人： LUMMUS TECHNOLOGY LLC

    发明人： Zan Liu ,  Peter Loezos ,  Jackeline Medina ,  Romain Lemoine

    IPC分类号： C07C2/62

    摘要： A cascade reactor scheme with acid and hydrocarbon flowing in reverse directions. The systems and processes for alkylation of olefins herein may include providing a first olefin to a first alkylation zone, and a second olefin to a second alkylation zone. Isoparaffin may be provided to the first alkylation zone. The isoparaffin and first olefin may be contacted with a partially spent sulfuric acid in the first alkylation zone to form a spent acid phase and a first hydrocarbon phase including alkylate and unreacted isoparaffin. The first hydrocarbon phase and second olefin may be contacted with a sulfuric acid feed in the second alkylation zone to form a second hydrocarbon phase, also including alkylate and unreacted isoparaffin, and the partially spent sulfuric acid that is fed to the first alkylation zone. Further, the second hydrocarbon phase may be separated, recovering an isoparaffin fraction and an alkylate product fraction.

    Method for producing 1,3-butadiene by dehydrogenating n-butenes, a material flow containing butanes and 2-butenes being provided
    6.
    发明授权
    Method for producing 1,3-butadiene by dehydrogenating n-butenes, a material flow containing butanes and 2-butenes being provided 有权

    公开(公告)号：US10384990B2

    公开(公告)日：2019-08-20

    申请号：US15525330

    申请日：2015-11-09

    申请人： BASF SE ,  Linde AG

    发明人： Jan Ungelenk ,  Philipp Grüne ,  Christian Walsdorff ,  Jan Pablo Josch ,  Michael Bender

    IPC分类号： C07C5/48 ,  C07C2/10 ,  C07C2/62 ,  C07C6/04 ,  C07C7/08 ,  C07C7/11 ,  C07C2/06 ,  C07C2/56 ,  C07C9/16 ,  C07C11/06 ,  C07C11/167

    摘要： The invention relates to a process for preparing 1,3-butadiene from n-butenes, comprising the steps of: A) providing an input gas stream a comprising butanes, 1-butene, 2-butene and isobutene, with or without 1,3-butadiene, from a fluid catalytic cracking plant; B) removing isobutene from the input gas stream a, giving a stream b comprising butanes, 1-butene and 2-butene, with or without 1,3-butadiene; C) feeding the stream b comprising butanes, 1-butene and 2-butene and optionally an, oxygenous gas and optionally water vapor into at least one dehydrogenating zone and dehydrogenating 1-butene and 2-butene to 1,3-butadiene, giving a product gas stream c comprising 1,3-butadiene, butanes, 2-butene and water vapor, with or without oxygen, with low-boiling hydrocarbons, with high-boiling secondary components, with or without carbon oxides and with or without inert gases; D) cooling and compressing the product gas stream c, giving at least one aqueous condensate stream d1 and a gas stream d2 comprising 1,3-butadiene, butanes, 2-butene and water vapor, with or without oxygen, with low-boiling hydrocarbons, with or without carbon oxides and with or without inert gases; Ea) removing uncondensable and low-boiling gas constituents comprising low-boiling hydrocarbons, with or without oxygen, with or without carbon oxides and with or without inert gases, as gas stream e2 from the gas stream d2 by absorbing the C4 hydrocarbons comprising 1,3-butadiene, butanes and 2-butene in an absorbent, giving an absorbent stream laden with C4 hydrocarbons and the gas stream e2, and Eb) subsequently desorbing the C4 hydrocarbons from the laden absorbent stream, giving a C4 hydrocarbon stream e1; F) separating the C4 hydrocarbon stream e1 by extractive distillation with a 1,3-butadiene-selective solvent into a stream f1 comprising 1,3-butadiene and the selective solvent and a stream f2 comprising butanes and 2-butene, wherein at least 90% of the 1-butene present in stream b is converted in step C) and a product stream f2 comprising butanes and 2-butene is obtained in step F.

    High viscosity index lubricants by isoalkane alkylation
    10.
    发明授权
    High viscosity index lubricants by isoalkane alkylation 有权

    公开(公告)号：US10093594B2

    公开(公告)日：2018-10-09

    申请号：US15159205

    申请日：2016-05-19

    申请人： Chevron U.S.A. Inc.

    发明人： Sven Ivar Hommeltoft

    IPC分类号： C07C2/62 ,  C10M105/04

    摘要： An isoalkane alkylate base oil and a process to make an isoalkane alkylate base oil having a VI higher than 90, comprising: a. selecting an isoalkane feed containing at least one isoalkane and an olefin feed containing at least one linear olefin such that a combined carbon number of the isoalkane feed and the olefin feed is from 20 to 60; and b. alkylating the isoalkane feed with the olefin feed in the presence of an acidic alkylation catalyst under alkylation conditions to make the isoalkane alkylate base oil having the VI higher than 90; wherein the isoalkane alkylate base oil has a kinematic viscosity at 100° C. from 2 to 30 mm2/s, a pour point less than 0° C., and a bromine index less than 2000 mg Br/100 g.