Process for direct coal liquefaction
    1.
    发明授权
    Process for direct coal liquefaction 有权
    直接煤液化过程

    公开(公告)号:US07763167B2

    公开(公告)日:2010-07-27

    申请号:US11572638

    申请日:2005-07-27

    IPC分类号: C10G1/06 C10G1/00

    摘要: Process for direct coal liquefaction of coal, including: (1) preparing a coal slurry from raw coal; (2) preheating the coal slurry, then feeding it into reaction system to undergo liquefaction reaction; (3) separating reaction products in a separator to form a liquid phase and a gas phase, wherein the liquid phase is fractionated in an atmospheric tower into a light oil fraction and a bottom product; (4) feeding the atmospheric tower bottom product to a vacuum tower to separate into distillate and vacuum residue; (5) mixing the light oil fraction and the distillate to form a mixture, then feeding the mixture to a suspended bed hydrotreating reactor with forced circulation for hydrogenation; (6) fractionating hydrogenation products into oil products and a hydrogen donor recycling solvent. The process can operate long periods, with higher reactor efficiency and utilization factor, increased liquid oil yield and can supply high-quality feedstock for further processing.

    摘要翻译: 煤炭直接煤液化工艺,包括:(1)从原煤制备煤浆; (2)预热煤浆,然后送入反应体系进行液化反应; (3)在分离器中分离反应产物以形成液相和气相,其中将液相在常压塔中分馏成轻油馏分和底部产物; (4)将大气塔底产物供给真空塔分离成馏出物和减压渣油; (5)将轻油馏分和馏出物混合以形成混合物,然后将混合物进料到具有强制循环氢化的悬浮床加氢处理反应器中; (6)将氢化产物分馏成油产物和氢供体回收溶剂。 该工艺可长时间运行,反应器效率更高,利用率更高,液体油产量提高,可供应优质原料进一步加工。

    PROCESS FOR DIRECT COAL LIQUEFACTION
    2.
    发明申请
    PROCESS FOR DIRECT COAL LIQUEFACTION 有权
    直接煤气化过程

    公开(公告)号:US20090152171A1

    公开(公告)日:2009-06-18

    申请号:US11572638

    申请日:2005-07-27

    IPC分类号: C10G1/06

    摘要: Process for direct coal liquefaction of coal, including: (1) preparing a coal slurry from raw coal; (2) preheating the coal slurry, then feeding it into reaction system to undergo liquefaction reaction; (3) separating reaction products in a separator to form a liquid phase and a gas phase, wherein the liquid phase is fractionated in an atmospheric tower into a light oil fraction and a bottom product; (4) feeding the atmospheric tower bottom product to a vacuum tower to separate into distillate and vacuum residue; (5) mixing the light oil fraction and the distillate to form a mixture, then feeding the mixture to a suspended bed hydrotreating reactor with forced circulation for hydrogenation; (6) fractionating hydrogenation products into oil products and a hydrogen donor recycling solvent. The process can operate long periods, with higher reactor efficiency and utilization factor, increased liquid oil yield and can supply high-quality feedstock for further processing.

    摘要翻译: 煤炭直接煤液化工艺,包括:(1)从原煤制备煤浆; (2)预热煤浆,然后送入反应体系进行液化反应; (3)在分离器中分离反应产物以形成液相和气相,其中将液相在常压塔中分馏成轻油馏分和底部产物; (4)将大气塔底产物供给真空塔分离成馏出物和减压渣油; (5)将轻油馏分和馏出物混合以形成混合物,然后将混合物进料到具有强制循环氢化的悬浮床加氢处理反应器中; (6)将氢化产物分馏成油产物和氢供体回收溶剂。 该工艺可长时间运行,反应器效率更高,利用率更高,液体油产量提高,可供应优质原料进一步加工。

    A PROCESS FOR DIRECT LIQUEFACTION OF COAL
    3.
    发明申请
    A PROCESS FOR DIRECT LIQUEFACTION OF COAL 有权
    煤的直接液化过程

    公开(公告)号:US20090283450A2

    公开(公告)日:2009-11-19

    申请号:US11572638

    申请日:2008-09-03

    IPC分类号: C10G1/06

    摘要: Process for direct coal liquefaction of coal, including: (1) preparing a coal slurry from raw coal; (2) preheating the coal slurry, then feeding it into reaction system to undergo liquefaction reaction; (3) separating reaction products in a separator to form a liquid phase and a gas phase, wherein the liquid phase is fractionated in an atmospheric tower into a light oil fraction and a bottom product; (4) feeding the atmospheric tower bottom product to a vacuum tower to separate into distillate and vacuum residue; (5) mixing the light oil fraction and the distillate to form a mixture, then feeding the mixture to a suspended bed hydrotreating reactor with forced circulation for hydrogenation; (6) fractionating hydrogenation products into oil products and a hydrogen donor recycling solvent. The process can operate long periods, with higher reactor efficiency and utilization factor, increased liquid oil yield and can supply high-quality feedstock for further processing.

    摘要翻译: 煤炭直接煤液化工艺,包括:(1)从原煤制备煤浆; (2)预热煤浆,然后送入反应体系进行液化反应; (3)在分离器中分离反应产物以形成液相和气相,其中将液相在常压塔中分馏成轻油馏分和底部产物; (4)将大气塔底产物供给真空塔分离成馏出物和减压渣油; (5)将轻油馏分和馏出物混合以形成混合物,然后将混合物进料到具有强制循环氢化的悬浮床加氢处理反应器中; (6)将氢化产物分馏成油产物和氢供体回收溶剂。 该工艺可长时间运行,反应器效率更高,利用率更高,液体油产量提高,可供应优质原料进一步加工。