中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

20 records (took 0.012 seconds)

    Flexible manufacturing system for selectively producing different linear alpha olefins
    4.
    发明授权
    Flexible manufacturing system for selectively producing different linear alpha olefins 有权

    公开(公告)号：US10947324B2

    公开(公告)日：2021-03-16

    申请号：US16804265

    申请日：2020-02-28

    Applicant: TPC Group LLC

    Inventor： Michael O. Nutt ,  Baiyi Zhao

    IPC: C08F2/01 ,  C08F4/642 ,  C08F10/14 ,  C08F10/08 ,  C08F4/69 ,  C07C2/30 ,  C07C2/36 ,  C07C11/02 ,  C07C11/08 ,  C07C11/107

    Abstract: A flexible manufacturing system for selectively producing different alpha-olefins from ethylene includes: (a) a reaction section 18 with ethylene feed operative to oligomerize ethylene; (b) a catalyst feed system 12, 14, 16 comprising a plurality of independent homogeneous catalyst feeders connected with the reaction section for alternatively providing different selective homogeneous catalyst compositions to the reaction section; (c) an ethylene recycle column 22 coupled to the reaction section and adapted to receive crude product and unreacted ethylene therefrom, the recycle column being operative to separate ethylene and optionally lower oligomers from the crude product which are recycled to the ethylene feed to the reaction section, the ethylene recycle column being further operative to provide a crude product bottoms stream; (d) a catalyst removal section 20 coupled to the reaction section adapted to remove spent catalyst from the system; and (e) a first product separation column 24 connected to the recycle column receiving the crude product stream therefrom, the product separation column being operative to separate purified oligomer from the crude product stream. Optionally provided is a second product separation column 26.

    Low-fluoride, reactive polyisobutylene
    7.
    发明授权
    Low-fluoride, reactive polyisobutylene 有权

    公开(公告)号：US09617363B1

    公开(公告)日：2017-04-11

    申请号：US15059589

    申请日：2016-03-03

    Applicant: TPC Group LLC

    Inventor： Rajeev Kumar ,  André M Gobin ,  Wayne Ouellette ,  Michael O. Nutt ,  Leonard M. Czupski ,  Peggy J. Macatangay

    IPC: C08F2/00 ,  C08F4/00 ,  C08F210/00 ,  C08F110/10 ,  B01J19/18

    CPC classification number: C08F110/10 ,  B01J4/001 ,  B01J19/18 ,  B01J2219/00094 ,  B01J2219/00768 ,  C08F2500/02 ,  C08F4/14

    Abstract: A method of making a low-fluoride reactive PIB composition includes (a) providing a modified C4 feedstock by way of blending a mixed C4 feedstock with a second feedstock having a lower LB/IsoB ratio; or providing a C4 feedstock with an LB/IsoB index of less than 10%; (b) feeding the modified C4 feedstock or the C4 feedstock with an LB/IsoB index of less than 10% to a CSTR with a homogeneous catalyst comprising BF3 and a modifier selected from alcohols, ethers and mixtures thereof; (c) polymerizing the modified C4 feedstock or the C4 feedstock with an LB/IsoB index of less than 10% in the reactor while maintaining the reactor at a temperature above −15° C. and utilizing a residence time less than 45 minutes to produce a crude PIB composition in a polymerization mixture; and (d) recovering a purified PIB composition from the polymerization mixture having a molecular weight, Mn, from 250 to 5000 Daltons and an alpha vinylidene content of at least 50 mol %. The crude PIB composition suitably has a fluoride content of less than 100 ppm and the purified PIB composition has a fluoride content of less than 20 ppm in preferred embodiments. In the most preferred embodiments, ammonium salts are used to neutralize the catalyst and fluoride salts are sublimed from the product at elevated temperatures.

    Oxidative Dehydrogenation Process With Hydrocarbon Moderator Gas and Reduced Nitrogen Feed
    8.
    发明申请
    Oxidative Dehydrogenation Process With Hydrocarbon Moderator Gas and Reduced Nitrogen Feed 有权
    碳氢化合物气体和还原氮气的氧化脱氢方法

    公开(公告)号：US20160002126A1

    公开(公告)日：2016-01-07

    申请号：US14771227

    申请日：2014-03-07

    Applicant: TPC Group LLC

    Inventor： Liana Caciula ,  Clifford A. Maat ,  Mark P. Kaminsky ,  Michael O. Nutt ,  Jillian M. Horn ,  Joseph G. Duff

    IPC: C07C5/48 ,  C07C2/32

    CPC classification number: C07C5/48 ,  B01J2219/00006 ,  C07C2/10 ,  C07C2/32 ,  C07C2523/745 ,  C07C2531/14 ,  C07C2531/22 ,  C07C2531/24 ,  C07C2531/30 ,  C07C11/167 ,  C07C11/08

    Abstract: Oxidative dehydrogenation includes: (a) providing a gaseous feed stream to a catalytic reactor, the feed stream comprising a dehydrogenation reactant, oxygen, superheated steam, hydrocarbon moderator gas and optionally nitrogen, wherein the molar ratio of moderator gas to oxygen in feed stream is typically from 4:1 to 1:1 and the molar ratio of oxygen to nitrogen in the feed stream is at least 2; (b) oxidatively dehydrogenating the reactant in the reactor to provide a dehydrogenated product enriched effluent product stream; and (c) recovering dehydrogenated product from the effluent product stream. One preferred embodiment is a process for making butadiene including dimerizing ethylene to n-butene in a homogeneous reaction medium to provide a hydrocarbonaceous n-butene rich feed stream and oxidatively dehydrogenating the n-butene so formed.

    Abstract translation: 氧化脱氢包括：（a）向催化反应器提供气态进料流，所述进料流包含脱氢反应物，氧气，过热蒸汽，烃缓和剂气体和任选的氮气，其中进料流中的缓和剂气体与氧气的摩尔比为 通常为4:1至1:1，并且进料流中氧与氮的摩尔比为至少2; （b）使反应器中的反应物氧化脱氢以提供富含脱氢产物的流出物流; 和（c）从流出物产物流中回收脱氢产物。 一个优选的实施方案是制备丁二烯的方法，其包括在均匀的反应介质中使乙烯与正丁烯二聚，以提供含烃的富含正丁烯的进料流并使如此形成的正丁烯氧化脱氢。

    Flexible Manufacturing System for Selectively Producing Different Linear Alpha Olefins
    9.
    发明申请
    Flexible Manufacturing System for Selectively Producing Different Linear Alpha Olefins 审中-公开

    公开(公告)号：US20200291140A1

    公开(公告)日：2020-09-17

    申请号：US16804265

    申请日：2020-02-28

    Applicant: TPC Group LLC

    Inventor： Michael O. Nutt ,  Baiyi Zhao

    IPC: C08F2/01 ,  C08F4/642 ,  C08F4/69 ,  C08F10/08 ,  C08F10/14

    Abstract: A flexible manufacturing system for selectively producing different alpha-olefins from ethylene includes: (a) a reaction section 18 with ethylene feed operative to oligomerize ethylene; (b) a catalyst feed system 12, 14, 16 comprising a plurality of independent homogeneous catalyst feeders connected with the reaction section for alternatively providing different selective homogeneous catalyst compositions to the reaction section; (c) an ethylene recycle column 22 coupled to the reaction section and adapted to receive crude product and unreacted ethylene therefrom, the recycle column being operative to separate ethylene and optionally lower oligomers from the crude product which are recycled to the ethylene feed to the reaction section, the ethylene recycle column being further operative to provide a crude product bottoms stream; (d) a catalyst removal section 20 coupled to the reaction section adapted to remove spent catalyst from the system; and (e) a first product separation column 24 connected to the recycle column receiving the crude product stream therefrom, the product separation column being operative to separate purified oligomer from the crude product stream. Optionally provided is a second product separation column 26.

Patent Agency Ranking