公开(公告)号：US09067902B2

公开(公告)日：2015-06-30

申请号：US14152519

申请日：2014-01-10

Applicant: Scientific Design Company, Inc.

Inventor： Ashok S. Padia ,  Hassan Eisa Al-Ahmadi

IPC: C07D301/03 ,  C07C43/00 ,  C07C29/00 ,  C07D301/10 ,  C07D301/08 ,  C07C29/10

CPC classification number: C07D301/10 ,  C07C29/106 ,  C07D301/08 ,  C07C31/202

Abstract: A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having a post-conditioning step where the catalyst is exposed to reactor feed having a chlorides concentration of from about 5 ppm to about 7 ppm and at a temperature of about 215° C. to about 225° C.

Abstract translation: 一种用于烯烃环氧化的方法，包括以下步骤：使含有烯烃，氧和具有后处理步骤的缓和剂的进料气体组合物反应，其中催化剂暴露于反应器进料中，氯化物浓度为约5ppm至 约7ppm和约215℃至约225℃的温度

公开(公告)号：US09221774B2

公开(公告)日：2015-12-29

申请号：US13655000

申请日：2012-10-18

Applicant: Scientific Design Company, Inc.

Inventor： Hassan Eisa Al-Ahmadi ,  Ashok S. Padia

IPC: C07D301/08 ,  C07D301/03 ,  C07D301/04

CPC classification number: C07D301/03 ,  C07D301/04

Abstract: A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having an optimal moderator concentration in the presence of an epoxidation catalyst at a first temperature and having a first selectivity; and increasing the optimal moderator concentration to a second moderator concentration and whereby the first selectivity is lowed to a second selectivity and the first temperature to a second temperature.

Abstract translation: 一种用于烯烃环氧化的方法，包括以下步骤：在第一温度下在含有环氧化催化剂存在下具有最佳缓和剂浓度的含有烯烃，氧气和缓和剂的进料气体组合物反应并具有第一选择性; 并且将最佳缓和剂浓度增加至第二减速剂浓度，由此第一选择性降低至第二选择性，第一温度降低至第二温度。

公开(公告)号：US20140200357A1

公开(公告)日：2014-07-17

申请号：US14152519

申请日：2014-01-10

Applicant: Scientific Design Company, Inc.

Inventor： Ashok S. Padia ,  Hassan Eisa Al-Ahmadi

IPC: C07D301/10 ,  C07C29/132 ,  C07D301/08

CPC classification number: C07D301/10 ,  C07C29/106 ,  C07D301/08 ,  C07C31/202

Abstract: A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having a post-conditioning step where the catalyst is exposed to reactor feed having a chlorides concentration of from about 5 ppm to about 7 ppm and at a temperature of about 215° C. to about 225° C.

Abstract translation: 一种用于烯烃环氧化的方法，包括以下步骤：使含有烯烃，氧和具有后处理步骤的缓和剂的进料气体组合物反应，其中催化剂暴露于反应器进料中，氯化物浓度为约5ppm至 约7ppm和约215℃至约225℃的温度

公开(公告)号：US09975865B2

公开(公告)日：2018-05-22

申请号：US15651191

申请日：2017-07-17

Applicant: Scientific Design Company, Inc.

Inventor： Ashok S. Padia

IPC: C07D301/10 ,  C07D303/06 ,  B01J23/04 ,  B01J23/50 ,  C01D17/00

CPC classification number: C07D301/10 ,  B01J23/04 ,  B01J23/50 ,  C01D17/003 ,  C07D303/06

Abstract: A method for producing ethylene oxide comprising: a) providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; b) contacting the one or more feed components with an ethylene oxide catalyst bed disposed in a reactor tube, the ethylene oxide catalyst bed comprising: (1) an upstream ethylene oxide catalyst having a first cesium concentration and (2) a downstream ethylene oxide catalyst having a second cesium concentration, wherein the first cesium concentration is higher than the second cesium concentration.

公开(公告)号：US20180016248A1

公开(公告)日：2018-01-18

申请号：US15651191

申请日：2017-07-17

Applicant: Scientific Design Company, Inc.

Inventor： Ashok S. Padia

IPC: C07D301/10 ,  C01D17/00 ,  B01J23/50 ,  C07D303/06 ,  B01J23/04

CPC classification number: C07D301/10 ,  B01J23/04 ,  B01J23/50 ,  C01D17/003 ,  C07D303/06

Abstract: A method for producing ethylene oxide comprising: a) providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; b) contacting the one or more feed components with an ethylene oxide catalyst bed disposed in a reactor tube, the ethylene oxide catalyst bed comprising: (1) an upstream ethylene oxide catalyst having a first cesium concentration and (2) a downstream ethylene oxide catalyst having a second cesium concentration, wherein the first cesium concentration is higher than the second cesium concentration.

公开(公告)号：US20130096330A1

公开(公告)日：2013-04-18

申请号：US13655000

申请日：2012-10-18

Applicant: SCIENTIFIC DESIGN COMPANY, INC.

Inventor： Hassan Eisa Al-Ahmadi ,  Ashok S. Padia

IPC: C07D301/03

CPC classification number: C07D301/03 ,  C07D301/04

Abstract: A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having an optimal moderator concentration in the presence of an epoxidation catalyst at a first temperature and having a first selectivity; and increasing the optimal moderator concentration to a second moderator concentration and whereby the first selectivity is lowed to a second selectivity and the first temperature to a second temperature.

Abstract translation: 一种用于烯烃环氧化的方法，包括以下步骤：在第一温度下在含有环氧化催化剂存在下具有最佳缓和剂浓度的含有烯烃，氧气和缓和剂的进料气体组合物反应并具有第一选择性; 并且将最佳缓和剂浓度增加至第二减速剂浓度，由此第一选择性降低至第二选择性，第一温度降低至第二温度。