Transesterification of camelina sativa oil using supercritical and subcritical methanol with cosolvents

Prafulla D. Patil, Veera Gnaneswar Gude, Shuguang Deng

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Transesterification of camelina oil using supercritical methanol with hexane as a cosolvent and subcritical methanol along with potassium hydroxide as a cosolvent/catalyst was investigated to study the methyl ester conversion process. It was found that cosolvents play a vital role in reducing the severity of critical operational parameters and maximize the biodiesel yield. The experimental results from the process parametric evaluation studies show that supercritical methanol with hexane as a cosolvent could produce maximum methyl esters using the following conditions: reaction temperature of 290 °C, methanol to oil ratio of 45, and reaction time of 40 min. For subcritical methanol condition with 0.3 wt % potassium hydroxide as a cosolvent, methyl ester yields of +90%are obtained using the following conditions: reaction temperature of 180 °C, methanol to oil molar ratio of 30, and a reaction time of 20 min. Process variables critical to the methyl ester conversion are determined to be cosolvent ratio, molar ratio of alcohol to oil, and reaction time. Fuel properties of the biodiesel produced are comparable to those of regular diesel and conform to the ASTM standards. Copyrigh

Original languageEnglish (US)
Pages (from-to)746-751
Number of pages6
JournalEnergy and Fuels
Volume24
Issue number2
DOIs
StatePublished - Feb 18 2010
Externally publishedYes

Fingerprint

Transesterification
Methanol
Oils
Esters
Potassium hydroxide
Biofuels
Hexanes
Biodiesel
Hexane
Alcohols
Temperature
Catalysts

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology

Cite this

Transesterification of camelina sativa oil using supercritical and subcritical methanol with cosolvents. / Patil, Prafulla D.; Gude, Veera Gnaneswar; Deng, Shuguang.

In: Energy and Fuels, Vol. 24, No. 2, 18.02.2010, p. 746-751.

Research output: Contribution to journalArticle

@article{bc474013870b403398ae665c63c4ba44,
title = "Transesterification of camelina sativa oil using supercritical and subcritical methanol with cosolvents",
abstract = "Transesterification of camelina oil using supercritical methanol with hexane as a cosolvent and subcritical methanol along with potassium hydroxide as a cosolvent/catalyst was investigated to study the methyl ester conversion process. It was found that cosolvents play a vital role in reducing the severity of critical operational parameters and maximize the biodiesel yield. The experimental results from the process parametric evaluation studies show that supercritical methanol with hexane as a cosolvent could produce maximum methyl esters using the following conditions: reaction temperature of 290 °C, methanol to oil ratio of 45, and reaction time of 40 min. For subcritical methanol condition with 0.3 wt {\%} potassium hydroxide as a cosolvent, methyl ester yields of +90{\%}are obtained using the following conditions: reaction temperature of 180 °C, methanol to oil molar ratio of 30, and a reaction time of 20 min. Process variables critical to the methyl ester conversion are determined to be cosolvent ratio, molar ratio of alcohol to oil, and reaction time. Fuel properties of the biodiesel produced are comparable to those of regular diesel and conform to the ASTM standards. Copyrigh",
author = "Patil, {Prafulla D.} and Gude, {Veera Gnaneswar} and Shuguang Deng",
year = "2010",
month = "2",
day = "18",
doi = "10.1021/ef900854h",
language = "English (US)",
volume = "24",
pages = "746--751",
journal = "Energy and Fuels",
issn = "0887-0624",
publisher = "American Chemical Society",
number = "2",

}

TY - JOUR

T1 - Transesterification of camelina sativa oil using supercritical and subcritical methanol with cosolvents

AU - Patil, Prafulla D.

AU - Gude, Veera Gnaneswar

AU - Deng, Shuguang

PY - 2010/2/18

Y1 - 2010/2/18

N2 - Transesterification of camelina oil using supercritical methanol with hexane as a cosolvent and subcritical methanol along with potassium hydroxide as a cosolvent/catalyst was investigated to study the methyl ester conversion process. It was found that cosolvents play a vital role in reducing the severity of critical operational parameters and maximize the biodiesel yield. The experimental results from the process parametric evaluation studies show that supercritical methanol with hexane as a cosolvent could produce maximum methyl esters using the following conditions: reaction temperature of 290 °C, methanol to oil ratio of 45, and reaction time of 40 min. For subcritical methanol condition with 0.3 wt % potassium hydroxide as a cosolvent, methyl ester yields of +90%are obtained using the following conditions: reaction temperature of 180 °C, methanol to oil molar ratio of 30, and a reaction time of 20 min. Process variables critical to the methyl ester conversion are determined to be cosolvent ratio, molar ratio of alcohol to oil, and reaction time. Fuel properties of the biodiesel produced are comparable to those of regular diesel and conform to the ASTM standards. Copyrigh

AB - Transesterification of camelina oil using supercritical methanol with hexane as a cosolvent and subcritical methanol along with potassium hydroxide as a cosolvent/catalyst was investigated to study the methyl ester conversion process. It was found that cosolvents play a vital role in reducing the severity of critical operational parameters and maximize the biodiesel yield. The experimental results from the process parametric evaluation studies show that supercritical methanol with hexane as a cosolvent could produce maximum methyl esters using the following conditions: reaction temperature of 290 °C, methanol to oil ratio of 45, and reaction time of 40 min. For subcritical methanol condition with 0.3 wt % potassium hydroxide as a cosolvent, methyl ester yields of +90%are obtained using the following conditions: reaction temperature of 180 °C, methanol to oil molar ratio of 30, and a reaction time of 20 min. Process variables critical to the methyl ester conversion are determined to be cosolvent ratio, molar ratio of alcohol to oil, and reaction time. Fuel properties of the biodiesel produced are comparable to those of regular diesel and conform to the ASTM standards. Copyrigh

UR - http://www.scopus.com/inward/record.url?scp=77649173609&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77649173609&partnerID=8YFLogxK

U2 - 10.1021/ef900854h

DO - 10.1021/ef900854h

M3 - Article

AN - SCOPUS:77649173609

VL - 24

SP - 746

EP - 751

JO - Energy and Fuels

JF - Energy and Fuels

SN - 0887-0624

IS - 2

ER -