Oxidative Dehydrogenation of Propane to Propylene with Carbon Dioxide

Abstract

Oxidative dehydrogenation of propane in the presence of carbon dioxide (ODPC) is a sustainable approach and an attractive catalytic route for propylene production with less environmental footprint than the conventional oxidative dehydrogenation path with oxygen. Researchers have considered CO₂ as a mild oxidant that can overcome the problems of over-oxidation and low propylene selectivity, that are typically associated with the current synthesis routes. This article provides a critical review on the current mechanistic understanding of three different catalyst types used in the ODPC reaction based on experimental studies; (i) zeolites with different frameworks, (ii) porous materials-supported metal oxides, and (iii) transition metal oxides and other metal catalysts. A detailed review of the literature compares the framework, pore structure, nature of active sites, reducibility, and the role of promoters and supports for each type of catalytic materials in the absence and presence of CO₂, and is followed by a thorough discussion on the promotional effects of CO₂ as a soft oxidant on C-H bond scission. Future directions with respect to materials design, synthesis and reaction conditions are also discussed.

Department(s)

Chemical and Biochemical Engineering

Second Department

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Catalysts; Dehydrogenation; Oxidants; Porous Materials; Propane; Propylene; Transition Metal Compounds; Transition Metals; Catalytic Materials; Environmental Footprints; ODP Reaction; Oxidative Dehydrogenation of Propanes; Oxidative Dehydrogenations; Propylene Production; Propylene Selectivity; Transition-Metal Oxides; Carbon Dioxide; Propane; Propylene

International Standard Serial Number (ISSN)

0926-3373

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2018 Elsevier, All rights reserved.

Publication Date

01 Jan 2018

Link to Full Text

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