Pyrolysis heater
    1.
    发明授权
    Pyrolysis heater 有权
    热解加热器

    公开(公告)号:US06685893B2

    公开(公告)日:2004-02-03

    申请号:US09841277

    申请日:2001-04-24

    IPC分类号: F23D1412

    摘要: A pyrolysis heater particularly for the cracking of hydrocarbons in the production of olefins has a burner arrangement in the firebox which directly heats the hearth of the firebox such that it becomes a radiant surface. This improves the heat flux in the lower portion of the firebox and produces a more uniform vertical heat flux profile over the firebox elevation. The base burners may fire horizontally across the hearth or may comprise porous ceramic burners as a part of the hearth. The base burners operate along with vertically firing hearth burners and optional wall burners in the upper portion of the firebox.

    摘要翻译: 专门用于在烯烃生产中裂解烃的热解加热器在火箱中具有燃烧器装置,其直接加热火炉的炉床,使其成为辐射表面。 这改善了火箱下部的热通量,并在火箱高度上产生了更均匀的垂直热通量分布。 底座燃烧器可以在炉膛上水平地射出,或者可以包括作为炉膛的一部分的多孔陶瓷燃烧器。 底座燃烧器与火箱上部的垂直燃烧炉底炉和可选的壁式燃烧器一起工作。

    Pyrolysis heater with paired burner zoned firing system
    2.
    发明授权
    Pyrolysis heater with paired burner zoned firing system 失效
    热解加热器配对燃烧器分区射击系统

    公开(公告)号:US06425757B1

    公开(公告)日:2002-07-30

    申请号:US09880588

    申请日:2001-06-13

    IPC分类号: F27B900

    CPC分类号: C10G9/20

    摘要: A pyrolysis heater has the inlet sections of the process coils grouped together and the outlet sections of these same process coils also grouped together. High heat liberation hearth burners are located adjacent to the inlet sections of the coils and lower heat liberation burners are located adjacent to the outlet sections. The secondary fuel tips of the burners are inclined toward the adjacent heater wall. The high heat liberation hearth burners adjacent to the inlet coils are arranged in spaced apart pairs with the secondary burner tips of each of the pair being inclined toward the other burner of the pair.

    摘要翻译: 热解加热器将过程线圈的入口部分组合在一起,并且这些相同过程线圈的出口部分也被组合在一起。 高放热炉底燃烧器邻近线圈的入口部分定位,下部放热燃烧器位于出口部分附近。 燃烧器的二次燃料尖端朝向相邻的加热器壁倾斜。 与入口线圈相邻的高热释放炉膛燃烧器以间隔开的对布置,其中每对的二次燃烧器尖端朝着该对的另一个燃烧器倾斜。

    Double bond hydroisomerization of butenes
    4.
    发明授权
    Double bond hydroisomerization of butenes 有权
    丁烯双键加氢异构化

    公开(公告)号:US07888541B2

    公开(公告)日:2011-02-15

    申请号:US11107059

    申请日:2005-04-15

    IPC分类号: C07C5/22

    摘要: A process is disclosed for the preferential conversion to 2-butene of a C4 stream containing 1-butene and 2-butene. The process involves mixing the C4 stream with a first hydrogen stream to form a feed stream, hydroisomerizing the feed stream in the presence of a first hydroisomerization catalyst in order to convert at least a portion of the 1-butene to 2-butene, thereby producing a hydroisomerization effluent, separating the hydroisomerization effluent in a fractionation column having an upper end and a lower end to form a 1-butene mixture at the upper end, a top effluent stream containing isobutane and isobutylene and a bottoms stream containing 2-butene, and hydroisomerizing the 1-butene mixture at the upper end of the column using a second hydroisomerization catalyst. A corresponding apparatus also is disclosed.

    摘要翻译: 公开了一种优选转化为含有1-丁烯和2-丁烯的C 4流的2-丁烯的方法。 该方法包括将C4流与第一氢气流混合以形成进料流,在第一加氢异构化催化剂存在下使进料流加氢异构化,以将至少一部分1-丁烯转化为2-丁烯,从而产生 加氢异构化流出物,在具有上端和下端的分馏塔中分离加氢异构化流出物,以在上端形成1-丁烯混合物,含有异丁烷和异丁烯的顶部流出物流和含有2-丁烯的塔底物流,以及 使用第二加氢异构化催化剂在柱的上端加氢异构化1-丁烯混合物。 也公开了相应的装置。

    Process for the Double Bond Hydroisomerization of Butenes
    6.
    发明申请
    Process for the Double Bond Hydroisomerization of Butenes 有权
    丁烯双键加氢异构化方法

    公开(公告)号:US20090280041A1

    公开(公告)日:2009-11-12

    申请号:US12460253

    申请日:2009-07-16

    IPC分类号: B01J8/04 B01J12/00

    摘要: A process is disclosed for the preferential conversion to 2-butene of a stream containing C4 compounds including 1-butene and 2-butene. The process involves mixing the C4 stream with a first hydrogen stream to form a feed stream, hydroisomerizing the feed stream in the presence of a first hydroisomerization catalyst in order to convert at least a portion of the 1-butene to 2-butene, thereby producing a hydroisomerization effluent, passing the hydroisomerization effluent through a fractionation column to form a top stream comprising isobutane and isobutylene and a bottoms stream comprising 2-butene, withdrawing a recycle stream from said fractionation column at a location above the feed point at which the weight ratio of 1-butene to 2-butene is high, and combining the recycle stream with at least one of the C4 stream and the feed stream upstream from the hydroisomerization catalyst. A corresponding apparatus also is disclosed.

    摘要翻译: 公开了一种优选转化为包含1-丁烯和2-丁烯的C4化合物的物流的2-丁烯的方法。 该方法包括将C4流与第一氢气流混合以形成进料流,在第一加氢异构化催化剂存在下使进料流加氢异构化,以将至少一部分1-丁烯转化为2-丁烯,从而产生 加氢异构化流出物,使加氢异构化流出物通过分馏塔以形成包含异丁烷和异丁烯的顶部料流和含有2-丁烯的塔底料流,在进料点上方的位置上取出来自所述分馏塔的再循环料流, 的1-丁烯与2-丁烯的摩尔比高,并且将再循环流与加氢异构化催化剂上游的C 4流和进料流中的至少一个混合。 也公开了相应的装置。

    Processing C4 olefin streams for the maximum production of propylene
    7.
    发明授权
    Processing C4 olefin streams for the maximum production of propylene 有权
    加工C4烯烃流以最大限度地生产丙烯

    公开(公告)号:US07214841B2

    公开(公告)日:2007-05-08

    申请号:US10620186

    申请日:2003-07-15

    IPC分类号: C07C6/04

    摘要: In order to maximize the production of propylene when the external supply of ethylene is limited, the C4 cut from a hydrocarbon cracking process is first subjected to autometathesis prior to any isobutylene removal and without any ethylene addition. This favors the reactions which produce propylene and pentenes. The ethylene and propylene produced are then removed leaving a stream of the C4's and heavier components. The C5 and heavier components are then removed leaving a mixture of 1-butene, 2-butene, isobutylene, and iso- and normal butanes. The isobutylene is next removed preferably by a catalytic distillation hydroisomerization de-isobutyleneizer. The isobutylene-free C4 stream is then mixed with the product ethylene removed from the autometathesis product together with any fresh external ethylene needed and subjected to conventional metathesis producing additional propylene.

    摘要翻译: 为了在限制乙烯的外部供应时最大限度地生产丙烯,从烃裂解过程切割的C 4 O 3首先在任何异丁烯去除之前和没有任何乙烯加成之前进行自动化。 这有利于产生丙烯和戊烯的反应。 然后除去生成的乙烯和丙烯,留下C 4+和较重组分的流。 然后除去C 5+和更重的组分,留下1-丁烯,2-丁烯,异丁烯和异丁烷和正丁烷的混合物。 接下来,异丁烯通过催化蒸馏加氢异构化脱异丁烯化处理。 然后将不含异丁烯的C 4 H 4流与从自动分离产物中除去的产物乙烯与所需的任何新鲜的外部乙烯混合,并进行常规复分解产生另外的丙烯。

    Solids feeding device and system
    10.
    发明授权
    Solids feeding device and system 失效
    固体饲养装置和系统

    公开(公告)号:US4390502A

    公开(公告)日:1983-06-28

    申请号:US318926

    申请日:1981-11-06

    摘要: The present invention is an apparatus continuously feeding particulate solids to a TRC reaction chamber or zone at a controlled rate of flow, and for admixing the solids with fluid simultaneously introduced to the reaction zone. This invention utilized one or more conduits, preferably tubular, to transfer the solids from a solids reservoir chamber to the reaction chamber at a controlled rate of flow, the conduits being in open communication with both the reservoir chamber and with the reaction chamber. The conduits are in the nature of orifices, and are symmetrically located across the reactor cross section, said orifices or conduits also being specially oriented with respect to the fluid reactant inlet to promote rapid and intimate mixing of the two phases.

    摘要翻译: 本发明是一种将颗粒固体以受控流速连续供给到TRC反应室或区域的装置,并且用于将固体与同时引入反应区的流体混合。 本发明利用一个或多个导管,优选管状,以固定的流量将固体从固体储存室转移到反应室,导管与贮存室和反应室都开放连通。 导管具有孔的性质,并且对称地位于反应器横截面上,所述孔或导管也相对于流体反应物入口特别定向以促进两相的快速和紧密混合。