PROCESS AND APPARATUS FOR THE SIMULATED COUNTER-CURRENT PRODUCTION OF PARA-XYLENE, CONSTITUTED BY TWO ADSORBERS IN SERIES WITH A TOTAL NUMBER OF 22 OR FEWER BEDS
    4.
    发明申请
    PROCESS AND APPARATUS FOR THE SIMULATED COUNTER-CURRENT PRODUCTION OF PARA-XYLENE, CONSTITUTED BY TWO ADSORBERS IN SERIES WITH A TOTAL NUMBER OF 22 OR FEWER BEDS 有权
    用于模拟对流生产对二甲苯的方法和装置,由两个共22个或更少的床上的两个吸烟者组成

    公开(公告)号:US20140121436A1

    公开(公告)日:2014-05-01

    申请号:US14064884

    申请日:2013-10-28

    CPC classification number: C07C7/12 B01D15/1828 C07C7/13 C07C15/08

    Abstract: The present invention describes a novel configuration for simulated counter-current para-xylene production units, constituted by two adsorbers, characterized in that the volume occupied by the solid adsorbent is reduced by at least 8% compared with the volume of solid adsorbent contained in the adsorbers of a prior art unit. This novel configuration can be used to minimize the quantity of solid adsorbent necessary to produce a given quantity of para-xylene.

    Abstract translation: 本发明描述了由两个吸附器构成的模拟逆流对二甲苯生产单元的新型结构,其特征在于固体吸附剂占据的体积与包含在固体吸附剂中的固体吸附剂的体积相比降低了至少8% 现有技术单元的吸附器。 这种新颖的结构可以用于最小化产生给定量的对二甲苯所必需的固体吸附剂的量。

    METHOD FOR PRODUCING GASOLINE WITH LOW SULPHUR AND MERCAPTAN CONTENT

    公开(公告)号:US20220267686A1

    公开(公告)日:2022-08-25

    申请号:US17629087

    申请日:2020-07-06

    Abstract: A process for the treatment of a gasoline containing sulfur compounds and olefins includes the following stages: a) hydrodesulfurization in the presence of a catalyst having an oxide support and an active phase having a metal from group VIB and a metal from group VIII, b) hydrodesulfurization at a higher temperature than that of stage a) and in the presence of a catalyst having an oxide support and an active phase with at least one metal from group VIII, c) separation of H2S formed, d) hydrodesulfurization at a low hydrogen/feedstock ratio and in the presence of a hydrodesulfurization catalyst having an oxide support and an active phase having a metal from group VIB and a metal from group VIII or an active phase with at least one metal from group VIII, and e) further separation of H2S formed.

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