Staged catalytic reforming process

    公开(公告)号:US11834615B2

    公开(公告)日:2023-12-05

    申请号:US16702128

    申请日:2019-12-03

    Abstract: A process and a system for reforming and upgrading a heavy naphtha feedstock may include dehydrogenating naphthenes in the heavy naphtha feedstock to form a first effluent stream comprising aromatics and then separating the aromatics via extraction from the produced first effluent stream to produce a second effluent stream containing raffinate paraffins. The process may then include subjecting the second effluent stream to cyclization reactions to produce a third effluent stream comprising aromatics and then combining the first effluent stream and the third effluent stream prior to extraction.

    CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYETHYLENE VIA REFINERY FCC OR FCC/ALKYLATION UNITS

    公开(公告)号:US20210301209A1

    公开(公告)日:2021-09-30

    申请号:US17131910

    申请日:2020-12-23

    Abstract: Provided in one embodiment is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene, and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a pyrolysis oil and optionally wax comprising a naphtha/diesel and heavy fraction, and char. The pyrolysis oil is passed to a refinery FCC unit from which a liquid petroleum gas C3 olefin/paraffin mixture fraction is recovered, as well as a C4 olefin/paraffin mixture fraction. The liquid petroleum gas C3 olefin/paraffin mixture fraction is passed to a steam cracker for ethylene production. The C4 olefin/paraffin mixture fraction is passed to a refinery alkylation unit, from which a n-butane and naphtha feed for a stream cracker to produce ethylene is recovered.

    Process Development By Parallel Operation Of Paraffin Isomerization Unit With Reformer
    3.
    发明申请
    Process Development By Parallel Operation Of Paraffin Isomerization Unit With Reformer 有权
    石油异构化单元与重整器并联运行的过程开发

    公开(公告)号:US20130026066A1

    公开(公告)日:2013-01-31

    申请号:US13192062

    申请日:2011-07-27

    Abstract: A process for refining naphtha that results in an improved octane value in a subsequent gasoline blend. Certain embodiments include separating a naphtha feed into light naphtha and heavy naphtha; separating the heavy naphtha into a paraffin stream and non-paraffin stream; introducing the light naphtha to a first isomerization unit, introducing the paraffin stream to a second isomerization unit; introducing the non-paraffin stream to a reforming unit and combining the resulting effluents to form a gasoline blend. The resulting gasoline blend has improved characteristics over gasoline blends that are made without introducing the paraffin stream to a second isomerization unit.

    Abstract translation: 精炼石脑油的方法,其导致随后的汽油混合物中改善的辛烷值。 某些实施方案包括将石脑油进料分离成轻质石脑油和重质石脑油; 将重质石脑油分离成石蜡流和非石蜡流; 将轻石脑油引入第一异构化单元,将石蜡流引入第二异构化单元; 将非石蜡流引入重整单元并将所得的流出物组合以形成汽油混合物。 所得到的汽油共混物具有比在不将石蜡流引入第二异构化单元的情况下制备的汽油共混物更好的特性。

    Apparatus and Process for Isomerizing a Hydrocarbon Stream
    4.
    发明申请
    Apparatus and Process for Isomerizing a Hydrocarbon Stream 有权
    用于异构化烃流的装置和方法

    公开(公告)号:US20100314292A1

    公开(公告)日:2010-12-16

    申请号:US12485246

    申请日:2009-06-16

    CPC classification number: C10G45/58

    Abstract: One exemplary embodiment can be an apparatus for isomerizing a hydrocarbon stream rich in a C4 hydrocarbon and/or at least one of a C5 and C6 hydrocarbon. The apparatus can include: a first drier and a second drier adapted to receive a fluid including at least one reactant; and a reaction zone communicating with the first drier to receive the fluid including at least one reactant and with the second drier to receive the regenerant. Generally, the first drier operates at a first condition to dry the fluid including at least one reactant and the second drier operates at a second condition during regeneration with a regenerant. The regenerant can pass through a fluid tapering device for regulating the flow of the regenerant to the reaction zone.

    Abstract translation: 一个示例性实施方案可以是用于异构化富含C 4烃和/或C 5和C 6烃中的至少一种的烃流的装置。 该装置可以包括:第一干燥器和第二干燥器,其适于接收包含至少一种反应物的流体; 以及与第一干燥器连通以接收包含至少一种反应物的流体并与第二干燥器接收再生剂的反应区。 通常,第一干燥器在第一条件下操作以干燥包括至少一种反应物的流体,并且第二干燥器在用再生剂再生期间在第二条件下操作。 再生剂可以通过流体锥形装置,用于调节再生剂流向反应区的流动。

    PROCESS AND APPARATUS FOR PRODUCING A REFORMATE BY INTRODUCING n-BUTANE
    5.
    发明申请
    PROCESS AND APPARATUS FOR PRODUCING A REFORMATE BY INTRODUCING n-BUTANE 审中-公开
    通过引入正丁醇生产改性剂的方法和装置

    公开(公告)号:US20100018900A1

    公开(公告)日:2010-01-28

    申请号:US12179542

    申请日:2008-07-24

    CPC classification number: C10G35/04

    Abstract: One exemplary embodiment can be a process for producing a reformate by combining a stream having an effective amount of n-butane and a stream having an effective amount of naphtha for reforming. Generally, the naphtha has not less than about 95%, by weight, of one or more compounds having a boiling point of about 38—about 260° C. as determined by ASTM D86-07. The process can include introducing the combined stream to a reforming reaction zone. Typically, the combined stream has an n-butane:naphtha mass ratio of about 0.10:1.00—about 1.00:1.00.

    Abstract translation: 一个示例性实施方案可以是通过将具有有效量的正丁烷的流和具有有效量的石脑油的流组合用于重整来生产重整产品的方法。 通常,根据ASTM D86-07测定,石脑油具有不小于约95重量%的一种或多种沸点为约38-约260℃的化合物。 该方法可以包括将组合的流引入重整反应区。 通常,组合物流的正丁烷:石脑油质量比为约0.10:1.00-约1.00:1.00。

    Production of light hydrocarbons by treatment of heavy hydrocarbons with
water
    6.
    发明授权
    Production of light hydrocarbons by treatment of heavy hydrocarbons with water 失效
    通过用水处理重质烃来生产轻烃

    公开(公告)号:US4543177A

    公开(公告)日:1985-09-24

    申请号:US619663

    申请日:1984-06-11

    CPC classification number: C10G9/00 C10G31/08

    Abstract: A process is disclosed for converting heavy hydrocarbons into light hydrocarbons which comprises contacting, in a first zone, a heavy hydrocarbon having an API gravity at 25.degree. C. of less than about 20, such as Boscan heavy crude oil and tar sand bitumen, with a liquid comprising water, in the absence of externally added catalyst and hydrogen, while maintaining the first zone at a temperature between 400.degree. and about 480.degree. C. and at a pressure at least about 690 kPa (about 100 psig, about 6.76 atm) and less than about 5,000 kPa (about 725 psig, about 148 atm), for a contact time under continuous flow conditions sufficient to produce a uniform (i.e., intimate) reaction mixture; forwarding the uniform reaction mixture to a second zone wherein the temperature and pressure conditions of the first zone are maintained at substantially steady state conditions for a time sufficient to separate the uniform mixture into a residue and a phase comprising light hydrocarbons, gas and water, withdrawing the residue and said phase from the second zone; and recovering a light hydrocarbon product having an API gravity at 25.degree. C. of greater than about 20 and substantially free of vanadium and nickel values, i.e., less than 50 ppm, preferably less than 10 or 5 ppm, a gaseous product, and a residue.

    Abstract translation: 公开了一种将重质烃转化为轻质烃的方法,其包括在第一区域中将具有小于约20的API重力在25℃的重质烃如Boscan重质原油和焦油砂沥青与 在没有外加催化剂和氢的情况下,包含水的液体,同时将第一区域保持在400至约480℃之间的温度和至少约690kPa(约100psig,约6.76atm)的压力下, 和约5,000kPa(约725psig,约148atm),在足以产生均匀(即紧密)的反应混合物的连续流动条件下的接触时间; 将均匀的反应混合物转移到第二区,其中第一区的温度和压力条件保持在基本上稳定的状态条件下足以将均匀混合物分离成残余物的时间和包含轻质烃,气体和水的相,抽出 残留物和来自第二区的所述相; 并回收具有大于约20的API重力在25℃下的基本上不含钒和镍值的轻烃产物,即小于50ppm,优选小于10或5ppm的气态产物,以及 残留物

    Circular economy for plastic waste to polyethylene via refinery FCC or FCC/alkylation units

    公开(公告)号:US11306253B2

    公开(公告)日:2022-04-19

    申请号:US17131910

    申请日:2020-12-23

    Abstract: Provided in one embodiment is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene, and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a pyrolysis oil and optionally wax comprising a naphtha/diesel and heavy fraction, and char. The pyrolysis oil is passed to a refinery FCC unit from which a liquid petroleum gas C3 olefin/paraffin mixture fraction is recovered, as well as a C4 olefin/paraffin mixture fraction. The liquid petroleum gas C3 olefin/paraffin mixture fraction is passed to a steam cracker for ethylene production. The C4 olefin/paraffin mixture fraction is passed to a refinery alkylation unit, from which a n-butane and naphtha feed for a stream cracker to produce ethylene is recovered.

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