公开(公告)号：US11986805B2

公开(公告)日：2024-05-21

申请号：US17431812

申请日：2020-03-26

Applicant: SABIC Global Technologies B.V.

Inventor： Srikant Gopal ,  Turki Al-Smari ,  Shahid Azam ,  Khalid Karim

IPC: B01J23/96 ,  B01J23/28 ,  B01J23/652 ,  B01J38/18 ,  C07C51/215 ,  C07C53/08

CPC classification number: B01J23/96 ,  B01J23/28 ,  B01J23/6525 ,  B01J38/18 ,  C07C51/215 ,  C07C53/08

Abstract: Systems and methods for using and regenerating a catalyst for producing acetic acid from ethane are disclosed. Feed stream comprising ethane and an oxidant including oxygen is flowed to a reactor, in which a catalyst comprising MoVNbPd oxide is disposed. The ethane and the oxidant are reacted in presence of the catalyst under reaction conditions sufficient to produce acetic acid. When the catalyst's ability to catalyze the reaction between the ethane and the oxidant is reduced by a predetermined percentage, the flow of the feed stream to the reactor is ceased. A regenerating gas stream is flowed through the reactor to contact the regenerating gas stream with the catalyst under operating conditions to increase the catalyst's ability to catalyze the reaction between the ethane and the oxidant.

公开(公告)号：US11708315B2

公开(公告)日：2023-07-25

申请号：US17914677

申请日：2021-03-04

Applicant: SABIC Global Technologies B.V.

Inventor： Srikant Gopal ,  Adel Al-Dossari ,  Jintang Duan

IPC: C07C29/76 ,  B01D15/20 ,  B01J47/016 ,  B01J39/05 ,  B01D15/36 ,  B01J39/20

CPC classification number: C07C29/76 ,  B01D15/20 ,  B01D15/362 ,  B01J39/05 ,  B01J39/20 ,  B01J47/016

Abstract: Method for lowering aldehyde content in a mixture comprising (i) diethylene glycol (DEG) and/or triethylene glycol (TEG) and (ii) aldehyde are disclosed. An ion exchange resin is soaked in monoethylene glycol. The mixture comprising 5 to 200 ppm aldehyde is then flowed to make contact with the soaked ion exchange resin to produce a product comprising DEG and/or TEG and less than 15 ppm aldehyde.

公开(公告)号：US11883798B2

公开(公告)日：2024-01-30

申请号：US17250538

申请日：2019-09-17

Applicant: SABIC Global Technologies B.V.

Inventor： Srikant Gopal ,  Turki Al-Smari

IPC: B01J23/652 ,  B01J37/04 ,  B01J37/08 ,  B01J6/00 ,  B01J37/03 ,  C07C51/16

CPC classification number: B01J23/6525 ,  B01J6/001 ,  B01J37/031 ,  B01J37/04 ,  B01J37/08 ,  C07C51/16

Abstract: Methods of producing a catalyst for oxidation of C2 hydrocarbons and methods of using the catalyst are disclosed. Molybdenum, vanadium, and niobium metal or metal containing compounds are used to form a slurry in water. After agitating the slurry for at least 15 minutes, palladium or a palladium containing compound is added to the slurry. After further agitation, a precipitate is collected, dried and calcined to obtain an active catalyst, with palladium primarily distributed on a surface of the catalyst. The active catalyst is capable of catalyzing the conversion of C2 hydrocarbons into acetic acid.