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Title: Integrated process and dual-function catalyst for olefin epoxidation

Abstract

The invention discloses a dual-functional catalyst composition and an integrated process for production of olefin epoxides including propylene oxide by catalytic reaction of hydrogen peroxide from hydrogen and oxygen with olefin feeds such as propylene. The epoxides and hydrogen peroxide are preferably produced simultaneously in situ. The dual-functional catalyst comprises noble metal crystallites with dimensions on the nanometer scale (on the order of <1 nm to 10 nm), specially dispersed on titanium silicalite substrate particles. The dual functional catalyst catalyzes both the direct reaction of hydrogen and oxygen to generate hydrogen peroxide intermediate on the noble metal catalyst surface and the reaction of the hydrogen peroxide intermediate with the propylene feed to generate propylene oxide product. Combining both these functions in a single catalyst provides a very efficient integrated process operable below the flammability limits of hydrogen and highly selective for the production of hydrogen peroxide to produce olefin oxides such as propylene oxide without formation of undesired co-products.

Inventors:
 [1];  [2]
  1. (Cranbury, NJ)
  2. (Plymouth Meeting, PA)
Issue Date:
Research Org.:
Hydrocarbon Technologies, Inc. (Lawrenceville, NJ)
OSTI Identifier:
875114
Patent Number(s):
6534661
Assignee:
Hydrocarbon Technologies, Inc. (Lawrenceville, NJ) CHO
DOE Contract Number:  
FG02-01ER83350
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
integrated; process; dual-function; catalyst; olefin; epoxidation; discloses; dual-functional; composition; production; epoxides; including; propylene; oxide; catalytic; reaction; hydrogen; peroxide; oxygen; feeds; produced; simultaneously; situ; noble; metal; crystallites; dimensions; nanometer; scale; <1; nm; 10; specially; dispersed; titanium; silicalite; substrate; particles; dual; functional; catalyzes; direct; generate; intermediate; surface; feed; product; combining; functions; single; provides; efficient; operable; below; flammability; limits; highly; selective; produce; oxides; formation; undesired; co-products; noble metal; catalyst composition; /999/423/502/

Citation Formats

Zhou, Bing, and Rueter, Michael. Integrated process and dual-function catalyst for olefin epoxidation. United States: N. p., 2003. Web.
Zhou, Bing, & Rueter, Michael. Integrated process and dual-function catalyst for olefin epoxidation. United States.
Zhou, Bing, and Rueter, Michael. Wed . "Integrated process and dual-function catalyst for olefin epoxidation". United States. https://www.osti.gov/servlets/purl/875114.
@article{osti_875114,
title = {Integrated process and dual-function catalyst for olefin epoxidation},
author = {Zhou, Bing and Rueter, Michael},
abstractNote = {The invention discloses a dual-functional catalyst composition and an integrated process for production of olefin epoxides including propylene oxide by catalytic reaction of hydrogen peroxide from hydrogen and oxygen with olefin feeds such as propylene. The epoxides and hydrogen peroxide are preferably produced simultaneously in situ. The dual-functional catalyst comprises noble metal crystallites with dimensions on the nanometer scale (on the order of <1 nm to 10 nm), specially dispersed on titanium silicalite substrate particles. The dual functional catalyst catalyzes both the direct reaction of hydrogen and oxygen to generate hydrogen peroxide intermediate on the noble metal catalyst surface and the reaction of the hydrogen peroxide intermediate with the propylene feed to generate propylene oxide product. Combining both these functions in a single catalyst provides a very efficient integrated process operable below the flammability limits of hydrogen and highly selective for the production of hydrogen peroxide to produce olefin oxides such as propylene oxide without formation of undesired co-products.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}

Patent:

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