公开(公告)号：US20190105634A1

公开(公告)日：2019-04-11

申请号：US16215270

申请日：2018-12-10

Applicant: FINA TECHNOLOGY, INC.

Inventor： Sivadinarayana Chinta ,  Kaushik Gandhi

IPC: B01J23/06 ,  C07C1/20 ,  C07C1/207 ,  B01J23/80 ,  B01J23/36 ,  B01J29/16 ,  B01J23/20 ,  C07C45/00

Abstract: A process includes reacting a feed stream containing ethanol and optionally acetaldehyde in a dehydration reactor in the presence of a dehydration catalyst system having a Group 4 or Group 5 metal oxide and a support. The process includes obtaining a product stream containing butadiene from the dehydration reactor. Another process includes reacting a feed stream containing ethanol and optionally acetaldehyde in a dehydration reactor in the presence of a dehydration catalyst system containing a tungsten oxide supported on a zeolite or a tantalum oxide supported on a zeolite. The process includes obtaining a product stream containing butadiene from the dehydration reactor.

公开(公告)号：US20170081260A1

公开(公告)日：2017-03-23

申请号：US14861316

申请日：2015-09-22

Applicant: FINA TECHNOLOGY, INC.

Inventor： James Assef ,  Scott Cooper ,  Kaushik Gandhi

IPC: C07C5/327 ,  B01J19/24

CPC classification number: C07C5/327 ,  B01D3/40 ,  C10G21/00 ,  C10G35/00 ,  C10G61/04 ,  C10G2300/4081 ,  C10G2400/22

Abstract: A process is provided including subjecting a raw C5 stream containing C5 diolefins to extractive distillation to form C5 diolefins and a raffinate stream. The process includes subjecting the raffinate stream to dehydrogenation to form additional C5 diolefins, which are recycled to the extractive distillation. Another process includes modifying a C5 diolefin extractive distillation unit by forming a recycle loop with a C5 olefin dehydrogenation reactor. A system is provided that includes a C5 diolefin extractive distillation unit and a C5 olefin dehydrogenation reactor that are arranged in a recycle loop. A process is provided that includes subjecting a raffinate stream containing C5 olefins from an extractive distillation unit to dehydrogenation to form C5 diolefins.

公开(公告)号：US10300459B2

公开(公告)日：2019-05-28

申请号：US16215270

申请日：2018-12-10

Applicant: FINA TECHNOLOGY, INC.

Inventor： Sivadinarayana Chinta ,  Kaushik Gandhi

IPC: C07C1/24 ,  C07C1/20 ,  B01J23/06 ,  C07C1/207 ,  B01J23/80 ,  B01J23/36 ,  B01J29/16 ,  B01J23/20 ,  C07C45/00 ,  B01J37/00 ,  B01J23/92 ,  B01J38/10

Abstract: A process includes reacting a feed stream containing ethanol and optionally acetaldehyde in a dehydration reactor in the presence of a dehydration catalyst system having a Group 4 or Group 5 metal oxide and a support. The process includes obtaining a product stream containing butadiene from the dehydration reactor. Another process includes reacting a feed stream containing ethanol and optionally acetaldehyde in a dehydration reactor in the presence of a dehydration catalyst system containing a tungsten oxide supported on a zeolite or a tantalum oxide supported on a zeolite. The process includes obtaining a product stream containing butadiene from the dehydration reactor.

公开(公告)号：US10179323B2

公开(公告)日：2019-01-15

申请号：US15175727

申请日：2016-06-07

Applicant: FINA TECHNOLOGY, INC.

Inventor： Sivadinarayana Chinta ,  Kaushik Gandhi

IPC: C07C1/24 ,  C07C1/20 ,  B01J23/06 ,  B01J23/36 ,  B01J23/20 ,  C07C45/00 ,  C07C1/207 ,  B01J23/80 ,  B01J29/16 ,  B01J38/10 ,  B01J23/92 ,  B01J37/00

Abstract: A process includes reacting a feed stream containing ethanol and optionally acetaldehyde in a dehydration reactor in the presence of a dehydration catalyst system having a Group 4 or Group 5 metal oxide and a support. The process includes obtaining a product stream containing butadiene from the dehydration reactor. Another process includes reacting a feed stream containing ethanol and optionally acetaldehyde in a dehydration reactor in the presence of a dehydration catalyst system containing a tungsten oxide supported on a zeolite or a tantalum oxide supported on a zeolite. The process includes obtaining a product stream containing butadiene from the dehydration reactor.