公开(公告)号：US12054446B2

公开(公告)日：2024-08-06

申请号：US17776303

申请日：2020-11-10

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Suman Kumar Jana ,  Ninad Loke ,  Selvakumar Subramanian ,  Amit Kumar ,  SreenivasaRao Gajula

IPC: C07C2/76

CPC classification number: C07C2/76 ,  C07C2523/42 ,  C07C2523/62 ,  C07C2529/44

Abstract: A method for the aromatization of hydrocarbons, comprising: introducing a feed stream to an aromatization catalyst in a fixed bed reactor wherein the feed stream comprises a hydrocarbon having 2 to 4 carbon atoms, converting the hydrocarbon having 2 to 4 carbon atoms to form an outlet stream comprising an aromatic hydrocarbon; wherein the feed stream is introduced at a GHSV of greater than or equal to 4,000 milliliters per gram of catalyst per hour (ml·g−1 Cat·h−1), and a pressure of greater than or equal to 0.4 MPa. The feed stream can comprise hydrogen in an amount of at least 0.1 volume percent (vol %) up to 20 vol % based upon total volume of the feed stream.

公开(公告)号：US20230094935A1

公开(公告)日：2023-03-30

申请号：US17802865

申请日：2021-02-24

Applicant: SABIC Global Technologies B.V.

Inventor： Syed Azhar Hashmi ,  Prasanna Kumar Pathath ,  Suman Kumar Jana ,  Vadlamani Chaitanya ,  Naveen Sathu ,  Lee Sangjoo ,  Debasish Das ,  Selvakumar Subramanian

IPC: C07C51/265 ,  B01J27/128 ,  B01J35/12

Abstract: Disclosed is a process for producing terephthalic acid. The process includes contacting p-xylene with a gaseous stream containing oxygen (O2) in presence of a homogeneous catalyst solution, at a reaction temperature of 180° C. to 195° C. to oxidize at least a portion of the p-xylene and form a product stream containing terephthalic acid, said homogeneous catalyst solution contains 350 ppm to 450 ppm cobalt (Co), 170 ppm to 270 ppm manganese (Mn), and 410 ppm to 510 ppm bromine (Br), wherein a Br/(Co+Mn) wt. % ratio is 0.5:1 to 1:1, and a Co to Mn wt. % ratio is 1.5:1 to 2:1.

公开(公告)号：US20210040015A1

公开(公告)日：2021-02-11

申请号：US16976340

申请日：2019-04-29

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sreenivasa Rao Gajula ,  Amit Kumar ,  Ziyad Kottavarithottil ,  Suman Kumar Jana ,  Eswara Rao Mupparaju ,  Vinita Dubey ,  Sivakumar Sreeramagiri

IPC: C07C2/76 ,  B01J29/48 ,  B01J23/28 ,  B01J37/08

Abstract: A process for activating an aromatization catalyst includes contacting an aromatization catalyst with a carburizing gas in a carburization reactor at a carburization pressure in a range of greater than 300 kPa to 800 kPa, or 500 kPa to 600 kPa, to obtain a calcined aromatization catalyst. The carburizing gas provides a carbon source, preferably the carburizing gas comprises at least one of methane, ethane, propane, butane, or carbon monoxide.

公开(公告)号：US20220152599A1

公开(公告)日：2022-05-19

申请号：US17389732

申请日：2021-07-30

Applicant: SABIC Global Technologies B.V.

Inventor： Suman Kumar Jana ,  Selvakumar Subramanian ,  Deepa Govindarajan ,  Ziyad Kottavarithottil ,  Amit Kumar ,  Ninad Loke ,  SreenivasaRao Gajula

IPC: B01J29/44 ,  B01J37/08 ,  B01J37/02 ,  B01J23/63 ,  B01J37/00 ,  B01J37/04 ,  B01J35/10 ,  B01J35/02 ,  C07C2/84

Abstract: A catalyst for converting ethane to monoaromatic hydrocarbons including: a zeolite; cesium oxide, wherein cesium of the cesium oxide is present in an amount of 0.01 to 0.5 weight percent, preferably 0.01 to 0.1 weight percent, more preferably 0.03 to 0.07 weight percent, based on a total weight of the catalyst; platinum oxide, wherein platinum of the platinum oxide is present in an amount of 0.01 to 1 weight percent, preferably 0.01 to 0.5 weight percent, more preferably 0.01 to 0.05 weight percent, based on a total weight of the catalyst; and gallium oxide, wherein gallium of the gallium oxide is present in an amount of 0.01 to 1 weight percent, preferably 0.03 to 0.5 weight percent, more preferably 0.05 to 0.2 weight percent, based on a total weight of the catalyst; wherein the monoaromatic hydrocarbons include benzene, toluene, xylene, or a combination including at least one of the foregoing.

公开(公告)号：US11104623B2

公开(公告)日：2021-08-31

申请号：US16976340

申请日：2019-04-29

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sreenivasa Rao Gajula ,  Amit Kumar ,  Ziyad Kottavarithottil ,  Suman Kumar Jana ,  Eswara Rao Mupparaju ,  Vinita Dubey ,  Sivakumar Sreeramagiri

IPC: C07C2/76 ,  B01J23/28 ,  B01J29/48 ,  B01J37/08

Abstract: A process for activating an aromatization catalyst includes contacting an aromatization catalyst with a carburizing gas in a carburization reactor at a carburization pressure in a range of greater than 300 kPa to 800 kPa, or 500 kPa to 600 kPa, to obtain a calcined aromatization catalyst. The carburizing gas provides a carbon source, preferably the carburizing gas comprises at least one of methane, ethane, propane, butane, or carbon monoxide.

公开(公告)号：US11084764B2

公开(公告)日：2021-08-10

申请号：US16469927

申请日：2017-12-28

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sreenivasarao Gajula ,  Amit Kumar ,  Ziyad Kottavarithottil ,  Anshita Sudarshan ,  Eswara Rao Mupparaju ,  Suman Kumar Jana ,  Anthonisamy Selvanathan ,  Sivakumar Sreeramagiri

IPC: C07C2/76 ,  B01J29/48 ,  B01J37/18 ,  C10G35/095

Abstract: Described herein is a method for producing a zeolite catalyst useful for aromatization of a lower alkane, a zeolite catalyst useful for aromatization of a lower alkane obtainable by said method and a process for aromatization of a lower alkane using the zeolite catalyst.