公开(公告)号：US20180119032A1

公开(公告)日：2018-05-03

申请号：US15675025

申请日：2017-08-11

Applicant: UOP LLC

Inventor： Priyesh Jayendrakumar Jani ,  Deepak Bisht ,  Tuhin Suvra Khan ,  Ram Ganesh Rokkam ,  Pijus Kanti Roy ,  Steven F. Zink ,  Avnish Kumar

IPC: C10G45/02 ,  C07C5/02 ,  B01D3/14 ,  B01D53/14 ,  B01D53/52 ,  C10G45/44 ,  C10G35/04

CPC classification number: C10G45/02 ,  B01D3/14 ,  B01D3/143 ,  B01D53/1468 ,  B01D53/52 ,  B01J23/85 ,  C07C5/02 ,  C07C7/148 ,  C07C9/22 ,  C07C15/20 ,  C07D335/08 ,  C10G35/04 ,  C10G45/44 ,  C10G2300/202 ,  C10G2400/02

Abstract: A process and apparatus for reducing the sulfur content of naphtha. The process includes introducing at least a portion of a naphtha feed stream to a selective hydrodesulfurization zone under selective hydrodesulfurization conditions in the presence of a selective hydrodesulfurization catalyst to form a low sulfur stream which contains mercaptan and thiophene compounds. At least a portion of the low sulfur stream is separated into at least two streams, a mercaptan rich stream containing mercaptan and thiophene compounds and an overhead stream containing hydrogen sulfide and liquid petroleum gas. The mercaptan rich stream is treated in an adsorbent zone to remove at least a portion of the mercaptan and thiophene compounds to form a mercaptan lean stream.

公开(公告)号：US10443001B2

公开(公告)日：2019-10-15

申请号：US15675025

申请日：2017-08-11

Applicant: UOP LLC

Inventor： Priyesh Jayendrakumar Jani ,  Deepak Bisht ,  Tuhin Suvra Khan ,  Ram Ganesh Rokkam ,  Pijus Kanti Roy ,  Steven F. Zink ,  Avnish Kumar

IPC: C10G45/02 ,  B01D3/14 ,  B01D53/14 ,  B01D53/52 ,  C07C5/02 ,  C10G35/04 ,  C10G45/44 ,  C07C7/148 ,  B01J23/85 ,  C07C9/22 ,  C07C15/20 ,  C07D335/08

Abstract: A process and apparatus for reducing the sulfur content of naphtha. The process includes introducing at least a portion of a naphtha feed stream to a selective hydrodesulfurization zone under selective hydrodesulfurization conditions in the presence of a selective hydrodesulfurization catalyst to form a low sulfur stream which contains mercaptan and thiophene compounds. At least a portion of the low sulfur stream is separated into at least two streams, a mercaptan rich stream containing mercaptan and thiophene compounds and an overhead stream containing hydrogen sulfide and liquid petroleum gas. The mercaptan rich stream is treated in an adsorbent zone to remove at least a portion of the mercaptan and thiophene compounds to form a mercaptan lean stream.