Hydrothermal catalysis of waste greases into green gasoline, jet, and diesel biofuels in continuous flow supercritical water
Abstract
Production of green gasoline, jet, and diesel biofuels from waste greases was achieved using a novel hydrothermal, continuous-flow catalytic process operating under supercritical water conditions, with recycled water the only added chemical. Thermally and chemically stable catalysts were explored to optimize yields of liquid biofuels and to minimize production of gases and acidic compounds. A 50:50 mixture of brown and yellow waste greases converted into 76.6 wt% liquid biocrude (BC); the remainder converted to water and gases. Less than 0.2% of the FS formed carbon char (mainly amongst catalyst particles). Various tubular reactors (Inconel, ® Hastelloy®, titanium, stainless) showed no interior defects, erosion, or mass loss after runs. Here, the titanium catalyst was fully recovered and regenerated back to its original potency. The BC was further refined into 28%, 48%, 20%, and 4 wt%, respectively for green gasoline, jet, diesel, and bunker. Biofuels were analyzed for compound class compositions and reaction mechanisms were proposed. The hundreds of identified fuel products (C3-C35) from processing oleic acid as a pure model compound were identified. The neat green gasoline and diesel biofuels along with a 50% green jet blend (with petroleum Jet A) were tested in appropriate spark ignition, turbine, and diesel enginesmore »
- Authors:
-
[1];
- SarTec Corporation, Anoka, MN (United States)
- Univ. of Minnesota, Minneapolis, MN (United States)
- Publication Date:
- Research Org.:
- SarTec Corporation, Anoka, MN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Bioenergy Technologies Office
- OSTI Identifier:
- 1841565
- Grant/Contract Number:
- SC0018792
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Biofuels, Bioproducts & Biorefining
- Additional Journal Information:
- Journal Volume: 16; Journal Issue: 2; Related Information: McNeff, Clayton V.; McNeff, Larry A.; Greuel, Peter G.;Yan, Bingwen; Nowlan, Daniel T.; Wynborny, Shane; Rupp, Steven J.; "A Continuous Hydrothermolytic Catalytic Reactor System for the Production of Bio-crude Biofuels", Biofuels, Bioproducts, & Biorefining, Vol. 9, 2015.; Journal ID: ISSN 1932-104X
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 09 BIOMASS FUELS; hydrothermal; continuous; metal oxide catalyst; supercritical water; biofuels; green fuels; renewable fuels
Citation Formats
Fedie, Ronald L., McNeff, Clayton V., McNeff, Charles V., McNeff, Larry C., Greuel, Peter G., Yan, Bingwen, Jenkins, Julie A., Brethorst, Jason T., Frost, Grant B., and Hoye, Thomas R. Hydrothermal catalysis of waste greases into green gasoline, jet, and diesel biofuels in continuous flow supercritical water. United States: N. p., 2021.
Web. doi:10.1002/bbb.2322.
Fedie, Ronald L., McNeff, Clayton V., McNeff, Charles V., McNeff, Larry C., Greuel, Peter G., Yan, Bingwen, Jenkins, Julie A., Brethorst, Jason T., Frost, Grant B., & Hoye, Thomas R. Hydrothermal catalysis of waste greases into green gasoline, jet, and diesel biofuels in continuous flow supercritical water. United States. https://doi.org/10.1002/bbb.2322
Fedie, Ronald L., McNeff, Clayton V., McNeff, Charles V., McNeff, Larry C., Greuel, Peter G., Yan, Bingwen, Jenkins, Julie A., Brethorst, Jason T., Frost, Grant B., and Hoye, Thomas R. Tue .
"Hydrothermal catalysis of waste greases into green gasoline, jet, and diesel biofuels in continuous flow supercritical water". United States. https://doi.org/10.1002/bbb.2322. https://www.osti.gov/servlets/purl/1841565.
@article{osti_1841565,
title = {Hydrothermal catalysis of waste greases into green gasoline, jet, and diesel biofuels in continuous flow supercritical water},
author = {Fedie, Ronald L. and McNeff, Clayton V. and McNeff, Charles V. and McNeff, Larry C. and Greuel, Peter G. and Yan, Bingwen and Jenkins, Julie A. and Brethorst, Jason T. and Frost, Grant B. and Hoye, Thomas R.},
abstractNote = {Production of green gasoline, jet, and diesel biofuels from waste greases was achieved using a novel hydrothermal, continuous-flow catalytic process operating under supercritical water conditions, with recycled water the only added chemical. Thermally and chemically stable catalysts were explored to optimize yields of liquid biofuels and to minimize production of gases and acidic compounds. A 50:50 mixture of brown and yellow waste greases converted into 76.6 wt% liquid biocrude (BC); the remainder converted to water and gases. Less than 0.2% of the FS formed carbon char (mainly amongst catalyst particles). Various tubular reactors (Inconel, ® Hastelloy®, titanium, stainless) showed no interior defects, erosion, or mass loss after runs. Here, the titanium catalyst was fully recovered and regenerated back to its original potency. The BC was further refined into 28%, 48%, 20%, and 4 wt%, respectively for green gasoline, jet, diesel, and bunker. Biofuels were analyzed for compound class compositions and reaction mechanisms were proposed. The hundreds of identified fuel products (C3-C35) from processing oleic acid as a pure model compound were identified. The neat green gasoline and diesel biofuels along with a 50% green jet blend (with petroleum Jet A) were tested in appropriate spark ignition, turbine, and diesel engines at University of MN Engine Labs. Biofuels achieved 107.7%, 97.2%, and 101.3% engine power performance levels relative to petroleum fuels (91-Octane, Jet A, #2 Diesel) along with lower CO and pollutant emissions. Biofuels passed ASTM fuel specifications (D4814, D7566, D975) including mandated corrosion and low sulfur limits of all three biofuels.},
doi = {10.1002/bbb.2322},
journal = {Biofuels, Bioproducts & Biorefining},
number = 2,
volume = 16,
place = {United States},
year = {Tue Dec 07 00:00:00 EST 2021},
month = {Tue Dec 07 00:00:00 EST 2021}
}
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