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Title: Selective Oxidative Cracking of n–Butane to Light Olefins over Hexagonal Boron Nitride with Limited Formation of COx

Abstract

Abstract In recent years, hexagonal boron nitride (hBN) has emerged as an unexpected catalyst for the oxidative dehydrogenation of alkanes. Here, the versatility of hBN was extended to alkane oxidative cracking chemistry by investigating the production of ethylene and propylene from n ‐butane. Cracking selectivity was primarily controlled by the ratio of n ‐butane to O 2 within the reactant feed. Under O 2 ‐lean conditions, increasing temperature led to increased selectivity to ethylene and propylene and decreased selectivity to CO x . In addition to surface‐mediated chemistry, homogeneous gas‐phase reactions likely contributed to the observed product distribution, and a reaction mechanism was proposed based on these observations. The catalyst showed good stability under oxidative cracking conditions for 100 h time‐on‐stream while maintaining high selectivity to ethylene and propylene.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
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  1. Univ. of Wisconsin, Madison, WI (United States)
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1866355
Alternate Identifier(s):
OSTI ID: 1570048
Grant/Contract Number:  
SC0017918
Resource Type:
Accepted Manuscript
Journal Name:
ChemSusChem
Additional Journal Information:
Journal Volume: 13; Journal Issue: 1; Journal ID: ISSN 1864-5631
Publisher:
ChemPubSoc Europe
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; 36 MATERIALS SCIENCE; 42 ENGINEERING; hexagonal boron nitride; hydrocarbon upgrading; oxidation; oxidative cracking; radicals

Citation Formats

McDermott, William P., Venegas, Juan, and Hermans, Ive. Selective Oxidative Cracking of n–Butane to Light Olefins over Hexagonal Boron Nitride with Limited Formation of COx. United States: N. p., 2019. Web. doi:10.1002/cssc.201901663.
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McDermott, William P., Venegas, Juan, & Hermans, Ive. Selective Oxidative Cracking of n–Butane to Light Olefins over Hexagonal Boron Nitride with Limited Formation of COx. United States. https://doi.org/10.1002/cssc.201901663
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McDermott, William P., Venegas, Juan, and Hermans, Ive. Mon . "Selective Oxidative Cracking of n–Butane to Light Olefins over Hexagonal Boron Nitride with Limited Formation of COx". United States. https://doi.org/10.1002/cssc.201901663. https://www.osti.gov/servlets/purl/1866355.
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@article{osti_1866355,
title = {Selective Oxidative Cracking of n–Butane to Light Olefins over Hexagonal Boron Nitride with Limited Formation of COx},
author = {McDermott, William P. and Venegas, Juan and Hermans, Ive},
abstractNote = {Abstract In recent years, hexagonal boron nitride (hBN) has emerged as an unexpected catalyst for the oxidative dehydrogenation of alkanes. Here, the versatility of hBN was extended to alkane oxidative cracking chemistry by investigating the production of ethylene and propylene from n ‐butane. Cracking selectivity was primarily controlled by the ratio of n ‐butane to O 2 within the reactant feed. Under O 2 ‐lean conditions, increasing temperature led to increased selectivity to ethylene and propylene and decreased selectivity to CO x . In addition to surface‐mediated chemistry, homogeneous gas‐phase reactions likely contributed to the observed product distribution, and a reaction mechanism was proposed based on these observations. The catalyst showed good stability under oxidative cracking conditions for 100 h time‐on‐stream while maintaining high selectivity to ethylene and propylene.},
doi = {10.1002/cssc.201901663},
journal = {ChemSusChem},
number = 1,
volume = 13,
place = {United States},
year = {Mon Aug 19 00:00:00 EDT 2019},
month = {Mon Aug 19 00:00:00 EDT 2019}
}
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https://doi.org/10.1002/cssc.201901663
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Cited by: 24 works
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