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Title: Ketonization of levulinic acid and γ-valerolactone to hydrocarbon fuel precursors

We studied a new process for direct conversion of either levulinic acid (LA) or γ-valerolactone (GVL) to hydrocarbon fuel precursors. The process involves passing an aqueous solution of LA or GVL containing a reducing agent, such as ethylene glycol or formic acid, over a ketonization catalyst at 380–400 °C and atmospheric pressure to form a biphasic liquid product. The organic phase is significantly oligomerized and deoxygenated and comprises a complex mixture of open-chain alkanes and olefins, aromatics, and low concentrations of ketones, alcohols, ethers, and carboxylates or lactones. Carbon content in the aqueous phase decreases with decreasing feed rate; the aqueous phase can be reprocessed through the same catalyst to form additional organic oils to improve carbon yield. Catalysts are readily regenerated to restore initial activity. Furthermore, the process might be valuable in converting cellulosics to biorenewable gasoline, jet, and diesel fuels as a means to decrease petroleum use and decrease greenhouse gas emissions.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Report Number(s):
PNNL-SA-127729
Journal ID: ISSN 0920-5861; PII: S0920586117304637
Grant/Contract Number:
AC05-76RL01830
Type:
Accepted Manuscript
Journal Name:
Catalysis Today
Additional Journal Information:
Journal Volume: 302; Journal ID: ISSN 0920-5861
Publisher:
Elsevier
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Levulinic acid; Gamma-valerolactone; Ketonization; Distillate fuels; Biomass
OSTI Identifier:
1390574

Lilga, Michael A., Padmaperuma, Asanga B., Auberry, Deanna L., Job, Heather M., and Swita, Marie S.. Ketonization of levulinic acid and γ-valerolactone to hydrocarbon fuel precursors. United States: N. p., Web. doi:10.1016/j.cattod.2017.06.021.
Lilga, Michael A., Padmaperuma, Asanga B., Auberry, Deanna L., Job, Heather M., & Swita, Marie S.. Ketonization of levulinic acid and γ-valerolactone to hydrocarbon fuel precursors. United States. doi:10.1016/j.cattod.2017.06.021.
Lilga, Michael A., Padmaperuma, Asanga B., Auberry, Deanna L., Job, Heather M., and Swita, Marie S.. 2017. "Ketonization of levulinic acid and γ-valerolactone to hydrocarbon fuel precursors". United States. doi:10.1016/j.cattod.2017.06.021. https://www.osti.gov/servlets/purl/1390574.
@article{osti_1390574,
title = {Ketonization of levulinic acid and γ-valerolactone to hydrocarbon fuel precursors},
author = {Lilga, Michael A. and Padmaperuma, Asanga B. and Auberry, Deanna L. and Job, Heather M. and Swita, Marie S.},
abstractNote = {We studied a new process for direct conversion of either levulinic acid (LA) or γ-valerolactone (GVL) to hydrocarbon fuel precursors. The process involves passing an aqueous solution of LA or GVL containing a reducing agent, such as ethylene glycol or formic acid, over a ketonization catalyst at 380–400 °C and atmospheric pressure to form a biphasic liquid product. The organic phase is significantly oligomerized and deoxygenated and comprises a complex mixture of open-chain alkanes and olefins, aromatics, and low concentrations of ketones, alcohols, ethers, and carboxylates or lactones. Carbon content in the aqueous phase decreases with decreasing feed rate; the aqueous phase can be reprocessed through the same catalyst to form additional organic oils to improve carbon yield. Catalysts are readily regenerated to restore initial activity. Furthermore, the process might be valuable in converting cellulosics to biorenewable gasoline, jet, and diesel fuels as a means to decrease petroleum use and decrease greenhouse gas emissions.},
doi = {10.1016/j.cattod.2017.06.021},
journal = {Catalysis Today},
number = ,
volume = 302,
place = {United States},
year = {2017},
month = {6}
}