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Title: Oxidation Reactions of Ethane over Ba-Ce-O Based Perovskites

Abstract

Ethane oxidation reactions were studied over pure and Ca-, Mg-, Sr-, La-, Nd-, and Y-substituted BaCeO{sub 3} perovskites under oxygen limited conditions. Several of the materials, notably the Ca- and Y-substituted materials, show activity for complete oxidation of the hydrocarbon to CO{sub 2} at temperatures below 650 C. At higher temperatures, the oxidative dehydrogenation (ODH) to ethylene becomes significant. Conversions and ethylene yields are enhanced by the perovskites above the thermal reaction in our system in some cases. The perovskite structure is not retained in the high temperature reaction environment. Rather, a mixture of carbonates and oxides is formed. Loss of the perovskite structure correlates with a loss of activity and selectivity to ethylene.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
9872
Report Number(s):
SAND99-2142J
TRN: AH200125%%82
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article
Journal Name:
Applied Catalysis A: General
Additional Journal Information:
Other Information: Submitted to Applied Catalysis A: General; PBD: 18 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; BARIUM OXIDES; CERIUM OXIDES; DEHYDROGENATION; ETHANE; ETHYLENE; OXIDATION; CATALYTIC EFFECTS; CHEMICAL REACTION KINETICS; CALCIUM; YTTRIUM; MAGNESIUM; STRONTIUM; LANTHANUM; NEODYMIUM

Citation Formats

Miller, James E., Sault, Allen G., Trudell, Daniel E., Nenoff, Tina M., Thoma, Steven G., and Jackson, Nancy B. Oxidation Reactions of Ethane over Ba-Ce-O Based Perovskites. United States: N. p., 1999. Web.
Miller, James E., Sault, Allen G., Trudell, Daniel E., Nenoff, Tina M., Thoma, Steven G., & Jackson, Nancy B. Oxidation Reactions of Ethane over Ba-Ce-O Based Perovskites. United States.
Miller, James E., Sault, Allen G., Trudell, Daniel E., Nenoff, Tina M., Thoma, Steven G., and Jackson, Nancy B. Wed . "Oxidation Reactions of Ethane over Ba-Ce-O Based Perovskites". United States. https://www.osti.gov/servlets/purl/9872.
@article{osti_9872,
title = {Oxidation Reactions of Ethane over Ba-Ce-O Based Perovskites},
author = {Miller, James E. and Sault, Allen G. and Trudell, Daniel E. and Nenoff, Tina M. and Thoma, Steven G. and Jackson, Nancy B.},
abstractNote = {Ethane oxidation reactions were studied over pure and Ca-, Mg-, Sr-, La-, Nd-, and Y-substituted BaCeO{sub 3} perovskites under oxygen limited conditions. Several of the materials, notably the Ca- and Y-substituted materials, show activity for complete oxidation of the hydrocarbon to CO{sub 2} at temperatures below 650 C. At higher temperatures, the oxidative dehydrogenation (ODH) to ethylene becomes significant. Conversions and ethylene yields are enhanced by the perovskites above the thermal reaction in our system in some cases. The perovskite structure is not retained in the high temperature reaction environment. Rather, a mixture of carbonates and oxides is formed. Loss of the perovskite structure correlates with a loss of activity and selectivity to ethylene.},
doi = {},
journal = {Applied Catalysis A: General},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}