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Title: Integrated conversion of 1-butanol to 1,3-butadiene

Renewed interest in production of 1,3-butadiene from non-petroleum sources has motivated research into novel production routes. In this work, we investigated an integrated process comprising 1-butanol dehydration over a γ-Al 2O 3 catalyst to produce a mixture of linear butenes, coupled with a downstream K-doped Cr 2O 3/Al 2O 3 catalyst to convert the butenes into butadiene. Linear butene yields greater than 90% are achievable at 360 °C in the dehydration step, and single-pass 1,3-butadiene yields greater than 40% are achieved from 1-butene in a N 2 atmosphere in the dehydrogenation step. In the integrated process, 1,3-butadiene yields are 10–15%. In all cases, linear C4 selectivity is greater than 90%, suggesting that 1,3-butadiene yields could be significantly improved in a recycle reactor. Doping the Cr 2O 3 catalyst with different metals to promote H 2 consumption in a CO 2 atmosphere did not have a large effect on catalyst performance compared to an undoped Cr 2O 3 catalyst, although doping with K in an N 2-diluted atmosphere and with Ni in a CO 2-enriched atmosphere showed slight improvement. In contrast, doping with K and Ca in a CO 2-enriched atmosphere showed slightly decreased performance. Similarly, employing a CO 2-enriched atmospheremore » in general did not improve 1,3-butadiene yield or selectivity compared to reactions performed in N 2. Overall, this study suggests that an integrated dehydration/dehydrogenation process to convert 1-butanol into 1,3-butadiene could be feasible with further catalyst and process development.« less
Authors:
ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ;  [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Report Number(s):
NREL/JA-5100-71976
Journal ID: ISSN 2046-2069; RSCACL
Grant/Contract Number:
AC36-08GO28308
Type:
Published Article
Journal Name:
RSC Advances
Additional Journal Information:
Journal Volume: 8; Journal Issue: 42; Journal ID: ISSN 2046-2069
Publisher:
Royal Society of Chemistry
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Laboratory Directed Research and Development (LDRD) Program
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; alumina; aluminum oxide; butenes; carbon dioxide; catalysts; dehydration
OSTI Identifier:
1458600
Alternate Identifier(s):
OSTI ID: 1461364

Kruger, Jacob S., Dong, Tao, Beckham, Gregg T., and Biddy, Mary J.. Integrated conversion of 1-butanol to 1,3-butadiene. United States: N. p., Web. doi:10.1039/C8RA02977F.
Kruger, Jacob S., Dong, Tao, Beckham, Gregg T., & Biddy, Mary J.. Integrated conversion of 1-butanol to 1,3-butadiene. United States. doi:10.1039/C8RA02977F.
Kruger, Jacob S., Dong, Tao, Beckham, Gregg T., and Biddy, Mary J.. 2018. "Integrated conversion of 1-butanol to 1,3-butadiene". United States. doi:10.1039/C8RA02977F.
@article{osti_1458600,
title = {Integrated conversion of 1-butanol to 1,3-butadiene},
author = {Kruger, Jacob S. and Dong, Tao and Beckham, Gregg T. and Biddy, Mary J.},
abstractNote = {Renewed interest in production of 1,3-butadiene from non-petroleum sources has motivated research into novel production routes. In this work, we investigated an integrated process comprising 1-butanol dehydration over a γ-Al2O3 catalyst to produce a mixture of linear butenes, coupled with a downstream K-doped Cr2O3/Al2O3 catalyst to convert the butenes into butadiene. Linear butene yields greater than 90% are achievable at 360 °C in the dehydration step, and single-pass 1,3-butadiene yields greater than 40% are achieved from 1-butene in a N2 atmosphere in the dehydrogenation step. In the integrated process, 1,3-butadiene yields are 10–15%. In all cases, linear C4 selectivity is greater than 90%, suggesting that 1,3-butadiene yields could be significantly improved in a recycle reactor. Doping the Cr2O3 catalyst with different metals to promote H2 consumption in a CO2 atmosphere did not have a large effect on catalyst performance compared to an undoped Cr2O3 catalyst, although doping with K in an N2-diluted atmosphere and with Ni in a CO2-enriched atmosphere showed slight improvement. In contrast, doping with K and Ca in a CO2-enriched atmosphere showed slightly decreased performance. Similarly, employing a CO2-enriched atmosphere in general did not improve 1,3-butadiene yield or selectivity compared to reactions performed in N2. Overall, this study suggests that an integrated dehydration/dehydrogenation process to convert 1-butanol into 1,3-butadiene could be feasible with further catalyst and process development.},
doi = {10.1039/C8RA02977F},
journal = {RSC Advances},
number = 42,
volume = 8,
place = {United States},
year = {2018},
month = {7}
}