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Oxychlorination-Dehydrochlorination Chemistry on Bifunctional Ceria Catalysts for Intensified Vinyl Chloride Production.
- Source :
-
Angewandte Chemie International Edition . 2/24/2016, Vol. 55 Issue 9, p3068-3072. 5p. - Publication Year :
- 2016
-
Abstract
- Ceria catalyzes the one-step production of the vinyl chloride monomer (VCM) from ethylene with a high yield because of its bifunctional character: redox centers oxychlorinate ethylene to ethylene dichloride (EDC), which is subsequently dehydrochlorinated to VCM over strong acid sites generated in situ. Nanocrystalline CeO2 and CeO2-ZrO2 lead to a VCM yield of 25 % in a single pass, outperforming the best reported systems and reaching industrially attractive levels. The use of CeO2 intensifies the current two-step process within PVC production encompassing CuCl2-catalyzed oxychlorination and thermal cracking. In addition, ceria-based materials offer stability advantages with respect to the archetypical CuCl2-based catalysts. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CHLORINATION
*CERIUM oxides
*VINYL chloride
*BIFUNCTIONAL catalysis
*ETHYLENE
Subjects
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 55
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 113137245
- Full Text :
- https://doi.org/10.1002/anie.201510903