公开(公告)号：US20230242497A1

公开(公告)日：2023-08-03

申请号：US17908476

申请日：2021-03-05

Applicant: Robert Roger BROEKHUIS ,  Pankaj Singh GAUTAM ,  Tian GU ,  Vidya Sagar Reddy SARSANI ,  SABIC Global Technologies, B.V.

Inventor： Robert Roger BROEKHUIS ,  Pankaj Singh GAUTAM ,  Tian GU ,  Vidya Sagar Reddy SARSANI

IPC: C07D301/08

CPC classification number: C07D301/08

Abstract: An ethylene oxide (EO) production process comprising (a) introducing a first reactant mixture (C2H6, O2) to a first reactor to produce a first effluent stream (C2H4, C2H6, O2); (b) introducing a second reactant mixture to a second reactor to produce a second effluent stream (EO, C2H4, C2H6, O2); wherein the second reactant mixture comprises at least a portion of first effluent stream; (c) separating the second effluent stream into an EO product stream (EO) and recycle stream (C2H4, C2H6, O2); wherein ethylene is not separated from recycle stream and/or first effluent stream; and (d) recycling a first portion of recycle stream to the first reactor, and a second portion of recycle stream to the second reactor; wherein recycle split ratio

公开(公告)号：US20230097182A1

公开(公告)日：2023-03-30

申请号：US17908486

申请日：2021-03-05

Applicant: Robert Roger BROEKHUIS ,  Pankaj Singh GAUTAM ,  Tian GU ,  Vidya Sagar Reddy SARSANI ,  SABIC Global Technologies, B.V.

Inventor： Robert Roger BROEKHUIS ,  Pankaj Singh GAUTAM ,  Tian GU ,  Vidya Sagar Reddy SARSANI

IPC: C07D301/08

Abstract: An ethylene oxide (EO) production process comprising (a) introducing a first reactant mixture (C2H6, C2H4, O2) to a first reactor system to produce a first effluent stream (C2H4, C2H6, O2), wherein the mole fraction of ethylene in first effluent stream is greater than in first reactant mixture; wherein the first reactor system is characterized by a first reactor system operating temperature of 270° C.-320° C.; wherein the first reactor system comprises oxidative dehydrogenation (ODH) stage(s); (b) introducing the first effluent stream to a second reactor to produce a second effluent stream (EO, C2H4, C2H6, O2); (c) separating the second effluent stream into an EO product stream (EO) and recycle stream (C2H4, C2H6, O2); wherein ethylene is not separated from recycle stream and/or first effluent stream; (d) recycling at least a portion of recycle stream to the first reactor system, and a optionally portion of recycle stream to the second reactor.

公开(公告)号：US20160176715A1

公开(公告)日：2016-06-23

申请号：US14907417

申请日：2014-07-25

Applicant: Pankaj Singh GAUTAM ,  SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Pankaj Singh Gautam ,  William E. Hollar, JR.

IPC: C01B31/28 ,  B01J8/06

CPC classification number: C01B31/28 ,  B01J8/0285 ,  B01J8/067 ,  B01J19/006 ,  B01J19/2405 ,  B01J19/2415 ,  B01J19/2425 ,  B01J19/243 ,  B01J2208/00194 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2219/00094 ,  B01J2219/00765 ,  C01B32/80

Abstract: A reactor for producing phosgene, the reactor comprising: tube located in a shell and a space located between the tube and the shell; a cooling medium located in the space and a catalyst located in the tube or cooling medium located in the tube and a catalyst located in the space; a feed inlet; and a product mixture outlet; wherein the tube comprises one or more of: a mini-tube and a second tube section; a first concentric tube concentrically located in the shell; a twisted tube; an internal scaffold; and an external scaffold.

Abstract translation: 一种用于生产光气的反应器，该反应器包括：位于壳体中的管和位于管和壳之间的空间; 位于所述空间中的冷却介质和位于所述管中的管或冷却介质中的催化剂和位于所述空间中的催化剂; 进料口; 和产品混合物出口; 其中所述管包括以下中的一个或多个：微型管和第二管部分; 同心地位于外壳中的第一同心管; 扭管 内部支架 和外部支架。

公开(公告)号：US09364794B2

公开(公告)日：2016-06-14

申请号：US14344378

申请日：2012-09-13

Applicant: Pankaj Singh Gautam ,  Vinod S. Nair

Inventor： Pankaj Singh Gautam ,  Vinod S. Nair

IPC: C01D7/12 ,  B01D53/96 ,  C01D7/26 ,  B01D53/62

CPC classification number: B01D53/96 ,  B01D53/62 ,  B01D2251/304 ,  B01D2251/606 ,  C01D7/26

Abstract: A method to recover caustic from a caustic waste stream comprises reducing the temperature of a caustic waste stream comprising dissolved Na2CO3 to a temperature less than or equal to the temperature at which the Na2CO3 precipitates from the caustic waste stream to form a caustic waste stream comprising precipitated Na2CO3 and separating the precipitated Na2CO3.

Abstract translation: 从苛性废物流中回收苛性碱的方法包括将包含溶解的Na 2 CO 3的苛性废物流的温度降低至低于或等于Na 2 CO 3从苛性碱废物流中沉淀出的温度，形成包含沉淀的 Na 2 CO 3并分离沉淀的Na 2 CO 3。

公开(公告)号：US20080194724A1

公开(公告)日：2008-08-14

申请号：US11673806

申请日：2007-02-12

Applicant: Pankaj Singh Gautam ,  Edward Norman Peters ,  Gerardo Rocha-Galicia

Inventor： Pankaj Singh Gautam ,  Edward Norman Peters ,  Gerardo Rocha-Galicia

IPC: C08J7/02

CPC classification number: C08G65/485 ,  C08L71/12 ,  C08L71/126 ,  C08L2205/05 ,  H05K1/0326 ,  C08L2666/22

Abstract: A crosslinked poly(arylene ether) film is prepared by a method that includes forming a film from a composition that includes a poly(arylene ether) having an intrinsic viscosity of at least 0.25 deciliter per gram and a polydispersity index less than or equal to 10, and irradiating the poly(arylene ether) film with a dosage of about 50 to about 50,000 kiloGrays of accelerated electrons. The films exhibit good flexibility and solvent resistance. Films prepared by the method are described, as are articles that include such films.

Abstract translation: 交联聚（亚芳基醚）膜是通过包括从包含特性粘度至少为0.25分升/克和多分散指数小于或等于10的聚（亚芳基醚）的组合物形成膜的方法制备的 ，并以大约50至大约50,000千赫的加速电子量的剂量照射聚（亚芳基醚）膜。 该膜具有良好的柔韧性和耐溶剂性。 描述了通过该方法制备的膜，以及包括这种膜的制品。