利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

565 条记录 (耗时 0.024 秒)

    METHOD FOR MANUFACTURING PARAXYLENE
    1.
    发明公开
    METHOD FOR MANUFACTURING PARAXYLENE 审中-公开

    公开(公告)号：EP4455113A1

    公开(公告)日：2024-10-30

    申请号：EP22911330.3

    申请日：2022-12-22

    申请人： Chiyoda Corporation

    发明人： HIROHATA, Osamu

    IPC分类号： C07C1/04 ,  C07C1/24 ,  C07C15/08 ,  C07C29/151 ,  C07C31/04 ,  C07B61/00

    摘要： An effective method for adjusting the hydrogen/carbon ratio of synthesis gas, which is a raw material for efficiently directly producing paraxylene, is provided. A method for producing paraxylene from synthesis gas obtained by gasifying carbon-containing raw materials, comprising a mixing step of obtaining a raw material mixed gas by adding hydrogen to the synthesis gas; a reaction step of obtaining a mixed gas product containing paraxylene by introducing the raw material mixed gas into a reactor and bringing it into contact with a paraxylene synthesis catalyst under heating and pressurization; a separation step of separating the mixed gas product into a gas phase composed of non-condensable components, an oil phase containing paraxylene, and an aqueous phase containing water-soluble components by cooling the mixed gas product to condense high-boiling point components; and a purification step of purifying the oil phase to obtain paraxylene,
    wherein the mixing step adds hydrogen so that the obtained raw material mixed gas has a composition in which an R value defined by the following formula (1) R = N H2 − N CO2 N CO + N CO2 falls within a range of 0.7 or more and 2.1 or less.

    METHOD FOR PRODUCING SYNTHESIS GAS AND AROMATIC HYDROCARBON
    4.
    发明公开
    METHOD FOR PRODUCING SYNTHESIS GAS AND AROMATIC HYDROCARBON 审中-公开

    公开(公告)号：EP4174018A1

    公开(公告)日：2023-05-03

    申请号：EP21920105.0

    申请日：2021-12-11

    申请人： LG Chem, Ltd.

    发明人： HWANG, Sung June ,  KIM, Tae Woo ,  KI, Sik ,  LEE, Sung Kyu

    IPC分类号： C01B3/34 ,  C10G7/08 ,  C10G7/12 ,  C07C1/02 ,  C07C15/04 ,  C07C15/06 ,  C07C15/08

    摘要： Provided is a method for preparing synthesis gas and aromatic hydrocarbons, and more particularly, a method for preparing synthesis gas and aromatic hydrocarbons including: supplying a pyrolysis fuel oil (PFO) stream containing PFO and a pyrolysis gas oil (PGO) stream containing PGO to a distillation tower as a feed stream (S10), the PFO stream and the PGO stream being discharged in a naphtha cracking center (NCC) process; and supplying a lower discharge stream from the distillation tower to a combustion chamber for a gasification process and supplying an upper discharge stream from the distillation tower to a BTX preparation process (S20).