公开(公告)号：US11572325B2

公开(公告)日：2023-02-07

申请号：US17297408

申请日：2019-11-14

Applicant: Robert Piszczek ,  Brian W. Heins ,  Paul Hamilton ,  Terrance C. Osby ,  Dion Zhang ,  Zhongcheng Wang ,  Michael L. Hergenrother ,  Jason A. Nichols

Inventor： Robert Piszczek ,  Brian W. Heins ,  Paul Hamilton ,  Terrance C. Osby ,  Dion Zhang ,  Zhongcheng Wang ,  Michael L. Hergenrother ,  Jason A. Nichols

IPC: C07C7/04 ,  B01D3/14 ,  B01D3/40 ,  C07C7/00

Abstract: Many linear alpha olefin (LAO) syntheses form a range of LAO products when oligomerizing ethylene in the presence of a Ziegler-type catalyst. The range of products typically requires a plurality of distillation columns to separate the LAO products up to a desired carbon count, but such approaches may be energy- and capital-intensive. LAO product separation using at least one dividing wall column may lessen these burdens. Methods for separating LAOs may comprise: providing a pre-processed product stream comprising Cg+ linear alpha olefins (LAOs) to a first of a series of distillation columns, at least one member of the series of distillation columns comprising a dividing wall column; and separating an overhead stream comprising a first LAO from the dividing wall column and one or more side streams from the dividing wall column, each side stream comprising a different LAO that also differs from the first LAO.

公开(公告)号：US20220033327A1

公开(公告)日：2022-02-03

申请号：US17297408

申请日：2019-11-14

Applicant: Robert Piszczek ,  Brian W. Heins ,  Paul Hamilton ,  Terrance C. Osby ,  Dion Zhang ,  Zhongcheng Wang ,  Michael L. Hergenrother ,  Jason A. Nichols

Inventor： Robert Piszczek ,  Brian W. Heins ,  Paul Hamilton ,  Terrance C. Osby ,  Dion Zhang ,  Zhongcheng Wang ,  Michael L. Hergenrother ,  Jason A. Nichols

IPC: C07C7/04 ,  C07C7/00 ,  B01D3/14 ,  B01D3/40

Abstract: Many linear alpha olefin (LAO) syntheses form a range of LAO products when oligomerizing ethylene in the presence of a Ziegler-type catalyst. The range of products typically requires a plurality of distillation columns to separate the LAO products up to a desired carbon count, but such approaches may be energy- and capital-intensive. LAO product separation using at least one dividing wall column may lessen these burdens. Methods for separating LAOs may comprise: providing a pre-processed product stream comprising Cg+ linear alpha olefins (LAOS) to a first of a series of distillation columns, at least one member of the series of distillation columns comprising a dividing wall column; and separating an overhead stream comprising a first LAO from the dividing wall column and one or more side streams from the dividing wall column, each side stream comprising a different LAO that also differs from the first LAO.