CONTROLLING FRACTIONATION USING DYNAMIC COMPETING ECONOMIC OBJECTIVES

    公开(公告)号:US20230193141A1

    公开(公告)日:2023-06-22

    申请号:US18060308

    申请日:2022-11-30

    发明人: Yangdong Pan

    IPC分类号: C10G7/12 G05B13/04

    摘要: Processes and systems for controlling operation of a commercial refinery distillation column and/or splitter operable to separate hydrocarbons. An automated process controller (APC) receives signal from at least one analyzer that provides information about the concentration of at least a first chemical in a first fraction and a second chemical in a second fraction obtained from the distillation column. The APC comprises programming in the form of an algorithm that calculates real-time monetary values for the first chemical and the second chemical and alters the operation of the distillation column to change either the percentage of the first chemical in the second fraction or the percentage of the second chemical in the first fraction, thereby maximizing overall operational profit for the distillation column.

    PROCESS FOR PRODUCING BTX AND LPG
    10.
    发明申请

    公开(公告)号:US20170152447A1

    公开(公告)日:2017-06-01

    申请号:US15324535

    申请日:2015-07-06

    IPC分类号: C10G47/18 C10L3/12 C10G70/06

    摘要: The invention is directed to a process for producing BTX and LPG, comprising: a) contacting a feed stream comprising C5-C12 hydrocarbons in the presence of hydrogen with a hydrocracking catalyst in a hydrocracking reactor to produce a hydrocracking product stream comprising hydrogen, methane, LPG and BTX, b) separating the hydrocracking product stream into a first gas stream and a first liquid stream, c) separating the first gas stream to obtain a second gas stream comprising hydrogen and methane and a second liquid stream comprising LPG and BTX, wherein the separation is performed such that the second liquid stream is substantially free of hydrogen and methane, d) separating the second liquid stream into a third gas stream comprising LPG and a third liquid stream comprising BTX, wherein step (c) involves adding a part of the third liquid stream to the first gas stream to absorb the LPG in the first gas stream to obtain the second liquid stream or adding a part of the third liquid stream to a gas stream sep crated from the first gas stream to absorb the LPG in said gas stream separated from the first gas stream to obtain the second liquid stream.