Hydrothermal Decarboxylation of Corn Distillers Oil for Fuel-Grade Hydrocarbons

Md. Zakir Hossain, Anil Kumar Jhawar, Muhammad B.I. Chowdhury, William Z. Xu, Paul A. Charpentier

Research output: Contribution to journalArticle

Abstract

Catalytic hydrothermal conversion of non-edible corn distillers oil (CDO), a low-value by-product of the ethanol industries, into high value fuel-grade hydrocarbons was investigated in near-supercritical water. The decarboxylation experiments were conducted using activated carbon in a 300 mL batch stirred tank reactor at reaction temperatures of 300–400 °C with pressure ranges from 2200–2500 psi (≈15–17 MPa), water/CDO (v/v) ratios of 2:1 to 5:1, and reaction times of 0.5 to 4 h at constant stirring speed (800 rpm). For the first time, complete removal of the −COO− group from CDO was achieved at 400 °C with 4 h of reaction time and a water/CDO (v/v) ratio of 4:1. The liquid products obtained were a mixture of saturated hydrocarbons, mainly C8–C16 (selectivity 49.7 %) and heptadecane (48.9 %) which have similar specific gravity, higher heating value (HHV), cloud points, and pour points to those of commercial fuels. 65 % liquid yield was obtained under optimal reaction conditions. The reaction mechanism was found to follow pseudo-first-order kinetics with an activation energy 66.1±3 kJ mol−1, which is much lower than similar reported literature values for the decarboxylation process.

Original languageEnglish
Pages (from-to)1261-1274
Number of pages14
JournalEnergy Technology
Volume6
Issue number7
DOIs
Publication statusPublished - Jul 1 2018

Fingerprint

Hydrocarbons
Water
Liquids
Density (specific gravity)
Activated carbon
Byproducts
Ethanol
Activation energy
Heating
Kinetics
Decarboxylation
Oils
Industry
Experiments
Temperature

Keywords

  • biofuels
  • biomass
  • catalysis
  • fuels
  • supercritical water

ASJC Scopus subject areas

  • Energy(all)

Cite this

Hossain, M. Z., Jhawar, A. K., Chowdhury, M. B. I., Xu, W. Z., & Charpentier, P. A. (2018). Hydrothermal Decarboxylation of Corn Distillers Oil for Fuel-Grade Hydrocarbons. Energy Technology, 6(7), 1261-1274. https://doi.org/10.1002/ente.201700957

Hydrothermal Decarboxylation of Corn Distillers Oil for Fuel-Grade Hydrocarbons. / Hossain, Md. Zakir; Jhawar, Anil Kumar; Chowdhury, Muhammad B.I.; Xu, William Z.; Charpentier, Paul A.

In: Energy Technology, Vol. 6, No. 7, 01.07.2018, p. 1261-1274.

Research output: Contribution to journalArticle

Hossain, MZ, Jhawar, AK, Chowdhury, MBI, Xu, WZ & Charpentier, PA 2018, 'Hydrothermal Decarboxylation of Corn Distillers Oil for Fuel-Grade Hydrocarbons', Energy Technology, vol. 6, no. 7, pp. 1261-1274. https://doi.org/10.1002/ente.201700957
Hossain, Md. Zakir ; Jhawar, Anil Kumar ; Chowdhury, Muhammad B.I. ; Xu, William Z. ; Charpentier, Paul A. / Hydrothermal Decarboxylation of Corn Distillers Oil for Fuel-Grade Hydrocarbons. In: Energy Technology. 2018 ; Vol. 6, No. 7. pp. 1261-1274.
@article{998602f7fc2544be8a22606b58c5d34f,
title = "Hydrothermal Decarboxylation of Corn Distillers Oil for Fuel-Grade Hydrocarbons",
abstract = "Catalytic hydrothermal conversion of non-edible corn distillers oil (CDO), a low-value by-product of the ethanol industries, into high value fuel-grade hydrocarbons was investigated in near-supercritical water. The decarboxylation experiments were conducted using activated carbon in a 300 mL batch stirred tank reactor at reaction temperatures of 300–400 °C with pressure ranges from 2200–2500 psi (≈15–17 MPa), water/CDO (v/v) ratios of 2:1 to 5:1, and reaction times of 0.5 to 4 h at constant stirring speed (800 rpm). For the first time, complete removal of the −COO− group from CDO was achieved at 400 °C with 4 h of reaction time and a water/CDO (v/v) ratio of 4:1. The liquid products obtained were a mixture of saturated hydrocarbons, mainly C8–C16 (selectivity 49.7 {\%}) and heptadecane (48.9 {\%}) which have similar specific gravity, higher heating value (HHV), cloud points, and pour points to those of commercial fuels. 65 {\%} liquid yield was obtained under optimal reaction conditions. The reaction mechanism was found to follow pseudo-first-order kinetics with an activation energy 66.1±3 kJ mol−1, which is much lower than similar reported literature values for the decarboxylation process.",
keywords = "biofuels, biomass, catalysis, fuels, supercritical water",
author = "Hossain, {Md. Zakir} and Jhawar, {Anil Kumar} and Chowdhury, {Muhammad B.I.} and Xu, {William Z.} and Charpentier, {Paul A.}",
year = "2018",
month = "7",
day = "1",
doi = "10.1002/ente.201700957",
language = "English",
volume = "6",
pages = "1261--1274",
journal = "Energy Technology",
issn = "2194-4288",
publisher = "Wiley - VCH Verlag GmbH & CO. KGaA",
number = "7",

}

TY - JOUR

T1 - Hydrothermal Decarboxylation of Corn Distillers Oil for Fuel-Grade Hydrocarbons

AU - Hossain, Md. Zakir

AU - Jhawar, Anil Kumar

AU - Chowdhury, Muhammad B.I.

AU - Xu, William Z.

AU - Charpentier, Paul A.

PY - 2018/7/1

Y1 - 2018/7/1

N2 - Catalytic hydrothermal conversion of non-edible corn distillers oil (CDO), a low-value by-product of the ethanol industries, into high value fuel-grade hydrocarbons was investigated in near-supercritical water. The decarboxylation experiments were conducted using activated carbon in a 300 mL batch stirred tank reactor at reaction temperatures of 300–400 °C with pressure ranges from 2200–2500 psi (≈15–17 MPa), water/CDO (v/v) ratios of 2:1 to 5:1, and reaction times of 0.5 to 4 h at constant stirring speed (800 rpm). For the first time, complete removal of the −COO− group from CDO was achieved at 400 °C with 4 h of reaction time and a water/CDO (v/v) ratio of 4:1. The liquid products obtained were a mixture of saturated hydrocarbons, mainly C8–C16 (selectivity 49.7 %) and heptadecane (48.9 %) which have similar specific gravity, higher heating value (HHV), cloud points, and pour points to those of commercial fuels. 65 % liquid yield was obtained under optimal reaction conditions. The reaction mechanism was found to follow pseudo-first-order kinetics with an activation energy 66.1±3 kJ mol−1, which is much lower than similar reported literature values for the decarboxylation process.

AB - Catalytic hydrothermal conversion of non-edible corn distillers oil (CDO), a low-value by-product of the ethanol industries, into high value fuel-grade hydrocarbons was investigated in near-supercritical water. The decarboxylation experiments were conducted using activated carbon in a 300 mL batch stirred tank reactor at reaction temperatures of 300–400 °C with pressure ranges from 2200–2500 psi (≈15–17 MPa), water/CDO (v/v) ratios of 2:1 to 5:1, and reaction times of 0.5 to 4 h at constant stirring speed (800 rpm). For the first time, complete removal of the −COO− group from CDO was achieved at 400 °C with 4 h of reaction time and a water/CDO (v/v) ratio of 4:1. The liquid products obtained were a mixture of saturated hydrocarbons, mainly C8–C16 (selectivity 49.7 %) and heptadecane (48.9 %) which have similar specific gravity, higher heating value (HHV), cloud points, and pour points to those of commercial fuels. 65 % liquid yield was obtained under optimal reaction conditions. The reaction mechanism was found to follow pseudo-first-order kinetics with an activation energy 66.1±3 kJ mol−1, which is much lower than similar reported literature values for the decarboxylation process.

KW - biofuels

KW - biomass

KW - catalysis

KW - fuels

KW - supercritical water

UR - http://www.scopus.com/inward/record.url?scp=85049773340&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049773340&partnerID=8YFLogxK

U2 - 10.1002/ente.201700957

DO - 10.1002/ente.201700957

M3 - Article

VL - 6

SP - 1261

EP - 1274

JO - Energy Technology

JF - Energy Technology

SN - 2194-4288

IS - 7

ER -