公开(公告)号：US09861948B2

公开(公告)日：2018-01-09

申请号：US15196288

申请日：2016-06-29

Applicant: Arkema Inc.

Inventor： Michael S. Decourcy ,  John L. Steinbach ,  Nicolas Dupont ,  Roger L. Roundy

IPC: B01J8/06 ,  B01J8/04 ,  C07C51/235 ,  C07C51/215 ,  C07C51/25 ,  B01J15/00 ,  B01J19/00 ,  B01J19/24

CPC classification number: B01J15/005 ,  B01J8/0453 ,  B01J8/048 ,  B01J8/065 ,  B01J8/067 ,  B01J19/0046 ,  B01J19/242 ,  B01J2208/00221 ,  B01J2208/00849 ,  B01J2208/0092 ,  B01J2208/025 ,  B01J2219/00479 ,  B01J2219/00495 ,  B01J2219/0059 ,  B01J2219/00594 ,  B01J2219/0072 ,  B01J2219/30226 ,  B01J2219/30265 ,  B01J2219/30475 ,  C07C51/215 ,  C07C51/235 ,  C07C51/252 ,  C07C57/04

Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.

公开(公告)号：US10532338B2

公开(公告)日：2020-01-14

申请号：US16297855

申请日：2019-03-11

Applicant: Arkema Inc.

Inventor： Michael S. Decourcy ,  John L. Steinbach ,  Nicolas Dupont ,  Roger L. Roundy

IPC: B01J8/06 ,  C07C51/25 ,  C07C51/235 ,  B01J8/04 ,  C07C51/215 ,  B01J15/00 ,  B01J19/00 ,  B01J19/24 ,  F28D21/00

Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.

公开(公告)号：US10112885B2

公开(公告)日：2018-10-30

申请号：US15118126

申请日：2015-02-12

Applicant: Arkema Inc.

Inventor： Michael S. Decourcy

IPC: C07C51/44 ,  C07C51/42 ,  B01D3/10 ,  B01D3/14 ,  B01D5/00

Abstract: A process for recovering (meth)acrylic acid includes distilling a mixture comprising (meth)acrylic acid in a finishing column at less than atmospheric pressure to produce a finishing column overhead stream and a finishing column bottoms stream. An overhead aspirating direct contact condenser system at least partially condenses the finishing column overhead stream to form a finishing column overhead condensate and an overhead non-condensables vent stream. A finishing column vapor-phase side draw may also be recovered. An aspirating direct contact condenser system may be used to at least partially condense the vapor-phase side draw.