公开(公告)号：US20190282920A1

公开(公告)日：2019-09-19

申请号：US16315689

申请日：2017-01-19

Applicant: Arkema Inc.

Inventor： Steven G. SCHON ,  Rose AGUIAR ,  Jerome AMSTUTZ ,  Sylvie CAUMIA ,  Andrew R. GODDARD ,  Shashank N. SHAH ,  Gary S. SMITH

IPC: B01D3/14 ,  B01D3/42 ,  B01D3/32 ,  C07C319/30

Abstract: Aspects of the present invention relate to systems and processes for obtaining desired mercaptans or thiophenes from a feed stream containing a mixture of mercaptans, thiophenes and other components. In one aspect of the invention, a system for separating one or more components from a feed stream of mixed mercaptans includes one or more distillation columns in connection with a feed containing mercaptans, the distillation column having a rectification section, a stripping section, and a feed side section separated from a side draw section by a dividing wall that extends from the rectification section to the stripping section. The distillation column further being in connection with a condenser and a reboiler; and a distillate stream, a side drawn stream, and a bottoms stream.