Integrated process for producing xylenes and high purity benzene
    43.
    发明授权
    Integrated process for producing xylenes and high purity benzene 失效
    生产二甲苯和高纯度苯的综合工艺

    公开(公告)号:US07544848B2

    公开(公告)日:2009-06-09

    申请号:US12146043

    申请日:2008-06-25

    IPC分类号: C07C6/08

    摘要: Processes and apparatus are provided that provide high yields of xylenes per unit of aromatic-containing feed while enabling a high purity benzene co-product to be obtained without the need for an extraction or distillation to remove C6 naphthenes. The processes of this invention include a transalkylation section and a disproportionation section in the benzene and toluene-containing feed is directly provided to the transalkylation section and in which a benzene recycle loop in the transalkylation section isolates the disproportionation section from C6 naphthenes.

    摘要翻译: 提供了提供每单位含芳族化合物的高产率的二甲苯的方法和装置,同时能够获得高纯度苯共同产物,而不需要萃取或蒸馏除去C6环烷烃。 本发明的方法包括烷基转移部分和苯和含甲苯的进料中的歧化部分直接提供给烷基转移部分,其中烷基转移部分中的苯循环回路将歧化部分与C6环烷烃隔离。

    Olefinic feedstock treatment processes
    44.
    发明授权
    Olefinic feedstock treatment processes 有权
    烯烃原料处理工艺

    公开(公告)号:US07396966B2

    公开(公告)日:2008-07-08

    申请号:US11313071

    申请日:2005-12-20

    CPC分类号: C07C15/107 C07C2/66

    摘要: Aromatic by-products are sorbed from mono-olefin-containing feedstocks of olefins having from about 6 to 22 carbon atoms per molecule that contain aromatic by-products having from 7 to 22 carbon atoms per molecule. A benzene-containing regenerant displaces and desorbs the aromatic by-products from the sorbent and a regeneration effluent is provided. The regeneration effluent is treated in a regeneration effluent distillation system to provide a benzene-rich stream and an aromatic by-products-containing stream. The latter is subjected to benzene-forming conditions and recycled to the regeneration effluent distillation system where benzene is recovered.

    摘要翻译: 芳族副产物被从每分子含有约6至22个碳原子的含单烯烃的原料中吸收,每分子含有7至22个碳原子的芳族副产物。 含苯的再生剂从吸附剂中取代并解吸芳族副产物,并提供再生流出物。 再生流出物在再生流出物蒸馏系统中处理以提供富含苯的流和含芳香族副产物的流。 后者经受苯形成条件并再循环至回收苯的再生流出物蒸馏系统。

    Process for Increasing Benzene and Toluene Production
    49.
    发明申请
    Process for Increasing Benzene and Toluene Production 有权
    增加苯和甲苯生产的过程

    公开(公告)号:US20120273392A1

    公开(公告)日:2012-11-01

    申请号:US13428005

    申请日:2012-03-23

    IPC分类号: C10G59/02

    摘要: A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and passing each feedstream to separation reformers. The reformers are operated under different conditions to utilize the differences in the reaction properties of the different hydrocarbon components. The process utilizes a common catalyst, and common downstream processes for recovering the desired aromatic compounds generated.

    摘要翻译: 提出了一种重整烃流的方法。 该方法包括将石脑油进料流分成至少两个进料流并将每个进料流通过分离重整器。 改性剂在不同条件下运行,以利用不同烃组分的反应性质的差异。 该方法利用普通的催化剂和用于回收生成的所需芳族化合物的常见的下游方法。