公开(公告)号：US20240424467A1

公开(公告)日：2024-12-26

申请号：US18684733

申请日：2022-08-16

Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor： Bolaji OLAYIWOLA ,  Vasily SIMANZHENKOV ,  Shahin GOODARZNIA

IPC: B01J19/00 ,  B01J4/00 ,  B01J8/06 ,  C07C11/04

Abstract: A system and method including an oxidative dehydrogenation (ODH) reactor system, feeding ethane and oxygen to an ODH reactor having ODH catalyst, and dehydrogenating ethane to ethylene via the ODH catalyst in presence of the oxygen in the ODH reactor, thereby forming acetic acid in the ODH reactor. The ODH reactor effluent is discharged through a quench heat exchanger, thereby cooling the effluent via the quench heat exchanger to below a temperature threshold, the effluent including ethylene, acetic acid, water, carbon dioxide, carbon monoxide, and unreacted ethane, wherein residence time of the effluent from the ODH reactor to effluent discharge outlet of the quench heat exchanger is less than a specified upper limit.

公开(公告)号：US20230357108A1

公开(公告)日：2023-11-09

申请号：US18030199

申请日：2021-10-28

Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor： Shahin GOODARZNIA ,  Vasily SIMANZHENKOV ,  Bolaji OLAYIWOLA

IPC: C07C5/48 ,  B01J19/24 ,  B01J19/00 ,  B01J29/89 ,  C07C7/04

CPC classification number: C07C5/48 ,  B01J19/2475 ,  B01J19/245 ,  B01J19/0013 ,  B01J29/89 ,  C07C7/04 ,  B01J2219/00076 ,  C07C2529/74

Abstract: This disclosure relates to a process of converting one or more alkanes to one or more alkenes that includes providing a first stream containing one or more alkanes and oxygen to an oxidative dehydrogenation process which converts at least a portion of the one or more alkanes to one or more alkenes in an oxidative dehydrogenation reactor, a second stream exiting the oxidative dehydrogenation process comprising one or more alkanes, and one or more alkenes; and providing at least a portion of the alkanes in the second stream to a catalytic membrane dehydrogenation process containing a catalyst loaded into a catalytic dehydrogenation membrane reactor which converts at least a portion of the alkanes to the corresponding alkenes and hydrogen.

公开(公告)号：US20220396541A1

公开(公告)日：2022-12-15

申请号：US17642774

申请日：2020-09-24

Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor： Vasily SIMANZHENKOV ,  Shahin GOODARZNIA ,  Bolaji OLAYIWOLA

IPC: C07C51/00 ,  C07C1/12 ,  B01J8/06 ,  B01J23/28

Abstract: A system and method for converting carbon dioxide into products by contacting the carbon dioxide with catalyst in the presence of hydrogen in a reactor.

公开(公告)号：US20230364573A1

公开(公告)日：2023-11-16

申请号：US18030329

申请日：2021-11-05

Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor： Shahin GOODARZNIA ,  Vasily SIMANZHENKOV ,  Bolaji OLAYIWOLA ,  David GENT

IPC: B01J8/04 ,  B01J8/00 ,  B01J8/02 ,  C07C5/333

CPC classification number: B01J8/0438 ,  B01J8/003 ,  B01J8/0492 ,  B01J8/0285 ,  C07C5/3332 ,  B01J2208/00115 ,  B01J2208/00752 ,  B01J2208/00805 ,  B01J2208/024 ,  B01J2208/027

Abstract: A fixed bed reactor system for the oxidative dehydrogenation of ethane, comprising a catalyst bed wherein the catalyst capacity profile increases along the length of catalyst bed from the upstream end to the downstream end. The catalyst bed may include one or more sections, across one or more fixed bed reactors, that are identified by a change in catalyst capacity. Catalyst capacity, or the ability to convert ethane into ethylene, may be altered by changing the dilution ratio, void fraction, and or the 35% conversion temperature. A method for loading a fixed bed reactor with an increasing catalyst capacity is also described.

公开(公告)号：US20230202958A1

公开(公告)日：2023-06-29

申请号：US18008312

申请日：2021-05-25

Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor： Bolaji OLAYIWOLA ,  Shahin GOODARZNIA ,  Vasily SIMANZHENKOV ,  Mohamed AIFFA ,  Kamal SERHAL ,  Robert LADD ,  David GENT

IPC: C07C51/16 ,  C07C51/15 ,  C07C53/08

CPC classification number: C07C51/16 ,  C07C51/15 ,  C07C53/08

Abstract: The present disclosure relates to limiting the production of acetic acid in an oxidative dehydrogenation process to convert ethane to ethylene. The process of oxidative dehydrogenation includes feeding acetic acid, along with ethane and oxygen into an oxidative dehydrogenation reactor where contact with a catalyst leads to conversion of the ethane into ethylene and acetic acid. By including acetic acid in the feed, the amount of acetic acid produced may be limited and the ratio of ethylene produced to ethane consumed may increase.

公开(公告)号：US20220241744A1

公开(公告)日：2022-08-04

申请号：US17611770

申请日：2020-07-15

Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor： Vasily SIMANZHENKOV ,  Shahin GOODARZNIA ,  Bolaji OLAYIWOLA ,  Kamal SERHAL ,  Michael KOSELEK

IPC: B01J7/02 ,  B01J4/00

Abstract: A method of safely mixing a hydrocarbon with an oxidant is provided. The hydrocarbon and oxidant are saturated with a non-flammable liquid in pre-mix zones that are flooded with the non-flammable liquid and fluidly connected to a common mixing zone that is partially flooded with the non-flammable liquid. The saturated hydrocarbon and oxidant combine within the common mixing zone forming bubbles of a homogeneous gas mixture of hydrocarbon and oxidant, preferably in a ratio of hydrocarbon to oxidant that is outside of the flammability limit, that can exit the non-flammable liquid into a headspace where it can be retrieved for use in an oxidative reaction process such as oxidative dehydrogenation.

公开(公告)号：US20240368058A1

公开(公告)日：2024-11-07

申请号：US18684746

申请日：2022-08-23

Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor： Bolaji OLAYIWOLA ,  Vasily SIMANZHENKOV ,  Shahin GOODARZNIA ,  David GENT ,  Mohammad KESHTKAR

IPC: C07C5/48 ,  C07C7/148

Abstract: A method and a system for converting ethane to ethylene are provided. An exemplary method includes providing a feed stream including the ethane and oxygen to an oxidative dehydrogenation reactor and converting at least a portion of the ethane to ethylene in the oxidative dehydrogenation reactor to provide a reactor effluent stream including ethane, ethylene, and oxygen, acetylene, or both. The method includes cooling the reactor effluent stream to form a cooled effluent stream and providing the cooled effluent stream to an oxygen removal reactor including an ODH catalyst bed. A deoxygenation stream including water and an alcohol is provided to the oxygen removal reactor to form a deoxygenated effluent.

公开(公告)号：US20240336544A1

公开(公告)日：2024-10-10

申请号：US18682200

申请日：2022-07-28

Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor： Vasily SIMANZHENKOV ,  Shahin GOODARZNIA ,  Bolaji OLAYIWOLA ,  Jeffrey KLUTHE

IPC: C07C5/48 ,  B01J23/00

CPC classification number: C07C5/48 ,  B01J23/002 ,  B01J2523/55 ,  B01J2523/56 ,  B01J2523/64 ,  B01J2523/68 ,  C07C2523/20 ,  C07C2523/22 ,  C07C2523/28 ,  C07C2523/32

Abstract: A feed stream including ethane is flowed to a purification unit that includes a first oxidative dehydrogenation catalyst. The feed stream is contacted with the first oxidative dehydrogenation catalyst at a first temperature to reduce a concentration of impurities in the feed stream to produce a purified feed stream. The purified feed stream is flowed to an oxidative dehydrogenation unit that includes a second oxidative dehydrogenation catalyst. The purified feed stream is contacted with the second oxidative dehydrogenation catalyst in the presence of oxygen at a second temperature greater than the first temperature to dehydrogenate ethane to produce a product stream that includes ethylene.

公开(公告)号：US20230348343A1

公开(公告)日：2023-11-02

申请号：US18025556

申请日：2021-09-20

Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor： Shahin GOODARZNIA ,  Vasily SIMANZHENKOV ,  Mohamed AIFFA ,  Bolaji OLAYIWOLA

IPC: C07C5/333 ,  B01J19/00

CPC classification number: C07C5/3332 ,  B01J19/0033 ,  C07C2521/04

Abstract: The product distribution from an oxidative dehydrogenation process can be altered by co-feeding different ratios of ethanol to steam, in the range of 0.01 to 0.50 ethanol:steam to an oxidative dehydrogenation reactor. Increasing the ethanol to steam ratio was found to: increase ethylene yield; decrease acetic acid yield; increase, or decrease, or cause no effect on CO or CO2 yield; and have negligible effect on ethane conversion. The feed ethanol is converted to carbonaceous products without negatively effecting the catalyst activity.

公开(公告)号：US20230212105A1

公开(公告)日：2023-07-06

申请号：US18008783

申请日：2021-05-25

Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.

Inventor： Shahin GOODARZNIA ,  Bolaji OLAYIWOLA ,  Vasily SIMANZHENKOV ,  Aashish GAURAV

IPC: C07C51/16 ,  C07C51/42 ,  C07C51/15 ,  B01J23/652 ,  B01J8/06

CPC classification number: C07C51/16 ,  C07C51/42 ,  C07C51/15 ,  B01J23/6525 ,  B01J8/065 ,  B01J2208/02 ,  B01J2208/065 ,  B01J2208/00053 ,  B01J2208/00212

Abstract: Methods and a reactor system for producing acetic acid in a selective oxidation (SO) reactor are provided. An example method includes providing a fresh feed stream to the SO reactor, wherein the fresh feed stream includes a methane feed stream, a carbon dioxide feed stream, and a steam feed stream. Acetic acid is formed in the SO reactor. An acetic acid product stream is separated from a reactor effluent stream in a scrubber. A recycle gas stream is obtained from the scrubber. At least a portion of the recycle gas stream is combined into the fresh feed stream to the SO reactor.