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公开(公告)号：US20220306951A1
公开(公告)日：2022-09-29
申请号：US17430667
申请日：2020-11-09
申请人： LG CHEM, LTD.
发明人： Sung June Hwang , Tae Woo Kim , Sung Kyu Lee
摘要： An apparatus for producing aromatic hydrocarbons including: a C6 separation column; a C7 separation column; a first gasoline hydrogenation unit; a C8 separation column; an extractive distillation column; a hydrodealkylation reaction unit; and a second gasoline hydrogenation unit.
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公开(公告)号：US11667855B2
公开(公告)日：2023-06-06
申请号：US17428932
申请日：2020-11-09
申请人： LG CHEM, LTD.
发明人： Sung June Hwang , Tae Woo Kim , Sung Kyu Lee
CPC分类号： C10G67/02 , B01D3/143 , B01D3/40 , B01D5/006 , B01D5/0075 , C07C7/005 , C07C7/08 , C07C7/163 , C10G53/16 , C10G2400/30
摘要： A method of producing aromatic hydrocarbons including: supplying a raw material stream to a C6 separation column, supplying an upper discharge stream from the C6 separation column to a first gasoline hydrogenation unit, and supplying a lower discharge stream from the C6 separation column to a C7 separation column; supplying an upper discharge stream from the C7 separation column to the first gasoline hydrogenation unit and supplying a lower discharge stream from the C7 separation column to a C8 separation column; separating benzene and toluene from a discharge stream from the first gasoline hydrogenation unit; removing a lower discharge stream from the C8 separation column and supplying an upper discharge stream from the C8 separation column to a second extractive distillation column; and separating styrene from a lower discharge stream from the second extractive distillation column and separating xylene from an upper discharge stream from the second extractive distillation column.
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公开(公告)号：US20220306555A1
公开(公告)日：2022-09-29
申请号：US17430302
申请日：2020-11-09
申请人： LG CHEM, LTD.
发明人： Sung June Hwang , Tae Woo Kim , Sung Kyu Lee
摘要： Method of producing aromatic hydrocarbons including: supplying a raw material stream to a C6 separation column, supplying an upper discharge stream from the C6 separation column to a first gasoline hydrogenation unit, and supplying a lower discharge stream from the C6 separation column to a C7 separation column; supplying an upper discharge stream from the C7 separation column to a hydrodealkylation reaction unit and supplying a lower discharge stream from the C7 separation column to a C8 separation column; separating benzene from discharged streams from the first gasoline hydrogenation unit and the hydrodealkylation reaction unit; removing a lower discharge stream from the C8 separation column and supplying an upper discharge stream from the C8 separation column to a second extractive distillation column; and separating styrene from a lower discharge stream of the second extractive distillation column and separating xylene from an upper discharge stream of the second extractive distillation column.
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公开(公告)号：US11976039B2
公开(公告)日：2024-05-07
申请号：US17430302
申请日：2020-11-09
申请人： LG CHEM, LTD.
发明人： Sung June Hwang , Tae Woo Kim , Sung Kyu Lee
摘要： Method of producing aromatic hydrocarbons including: supplying a raw material stream to a C6 separation column, supplying an upper discharge stream from the C6 separation column to a first gasoline hydrogenation unit, and supplying a lower discharge stream from the C6 separation column to a C7 separation column; supplying an upper discharge stream from the C7 separation column to a hydrodealkylation reaction unit and supplying a lower discharge stream from the C7 separation column to a C8 separation column; separating benzene from discharged streams from the first gasoline hydrogenation unit and the hydrodealkylation reaction unit; removing a lower discharge stream from the C8 separation column and supplying an upper discharge stream from the C8 separation column to a second extractive distillation column; and separating styrene from a lower discharge stream of the second extractive distillation column and separating xylene from an upper discharge stream of the second extractive distillation column.
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公开(公告)号：US20220306950A1
公开(公告)日：2022-09-29
申请号：US17428932
申请日：2020-11-09
申请人： LG CHEM, LTD.
发明人： Sung June Hwang , Tae Woo Kim , Sung Kyu Lee
摘要： A method of producing aromatic hydrocarbons including: supplying a raw material stream to a C6 separation column, supplying an upper discharge stream from the C6 separation column to a first gasoline hydrogenation unit, and supplying a lower discharge stream from the C6 separation column to a C7 separation column; supplying an upper discharge stream from the C7 separation column to the first gasoline hydrogenation unit and supplying a lower discharge stream from the C7 separation column to a C8 separation column; separating benzene and toluene from a discharge stream from the first gasoline hydrogenation unit; removing a lower discharge stream from the C8 separation column and supplying an upper discharge stream from the C8 separation column to a second extractive distillation column; and separating styrene from a lower discharge stream from the second extractive distillation column and separating xylene from an upper discharge stream from the second extractive distillation column.
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