Biodiesel production from waste cooking oil over alkaline modified zirconia catalyst

Wan Nor Nadyaini Wan Omar; Nor Aishah Saidina Amin

doi:10.1016/j.fuproc.2011.08.009

Biodiesel production from waste cooking oil over alkaline modified zirconia catalyst

Wan Nor Nadyaini Wan Omar
, Nor Aishah Saidina Amin^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

206 Scopus citations

Abstract

Screening and catalytic activity of alkaline modified zirconia i.e. Mg/ZrO₂, Ca/ZrO₂, Sr/ZrO₂, and Ba/ZrO ₂ as heterogeneous catalyst in biodiesel production from waste cooking oil (WCO) have been investigated. The catalysts were prepared via wet impregnation of alkaline nitrate salts supported on zirconia. Physico-chemical characteristics of the catalysts were analyzed by BET surface area, XRD, FESEM and CO₂-NH₃-TPD. Among the catalysts screened, Sr/ZrO ₂ exhibited higher catalytic activities. Characterization results disclosed Sr/ZrO₂ catalyst possessed balanced basic and acid site concentrations with its pore volume, surface area as well as pore diameters suitable for biodiesel production. The balanced active sites facilitated simultaneous transesterification and esterification of WCO. A plausible mechanism has been suggested for the simultaneous reactions. The effects of operating process conditions such as methanol to oil molar ratio, reaction temperature and catalyst loading on biodiesel production in the presence of Sr/ZrO₂ were investigated. Methyl ester (ME) yield at 79.7% was produced over 2.7 wt.% catalyst loading (Sr/ZrO₂), 29:1 methanol to oil molar ratio, 169 min of reaction time and 115.5 °C temperature.

Original language	English
Pages (from-to)	2397-2405
Number of pages	9
Journal	Fuel Processing Technology
Volume	92
Issue number	12
DOIs	https://doi.org/10.1016/j.fuproc.2011.08.009
State	Published - Dec 2011
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Biodiesel
Esterification
Heterogeneous catalyst
Transesterification
Waste cooking oil

ASJC Scopus subject areas

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology

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10.1016/j.fuproc.2011.08.009

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@article{2e7c30761e214a319f87add7c4ff4fce,

title = "Biodiesel production from waste cooking oil over alkaline modified zirconia catalyst",

abstract = "Screening and catalytic activity of alkaline modified zirconia i.e. Mg/ZrO2, Ca/ZrO2, Sr/ZrO2, and Ba/ZrO 2 as heterogeneous catalyst in biodiesel production from waste cooking oil (WCO) have been investigated. The catalysts were prepared via wet impregnation of alkaline nitrate salts supported on zirconia. Physico-chemical characteristics of the catalysts were analyzed by BET surface area, XRD, FESEM and CO2-NH3-TPD. Among the catalysts screened, Sr/ZrO 2 exhibited higher catalytic activities. Characterization results disclosed Sr/ZrO2 catalyst possessed balanced basic and acid site concentrations with its pore volume, surface area as well as pore diameters suitable for biodiesel production. The balanced active sites facilitated simultaneous transesterification and esterification of WCO. A plausible mechanism has been suggested for the simultaneous reactions. The effects of operating process conditions such as methanol to oil molar ratio, reaction temperature and catalyst loading on biodiesel production in the presence of Sr/ZrO2 were investigated. Methyl ester (ME) yield at 79.7\% was produced over 2.7 wt.\% catalyst loading (Sr/ZrO2), 29:1 methanol to oil molar ratio, 169 min of reaction time and 115.5 °C temperature.",

keywords = "Biodiesel, Esterification, Heterogeneous catalyst, Transesterification, Waste cooking oil",

author = "\{Wan Omar\}, \{Wan Nor Nadyaini\} and Amin, \{Nor Aishah Saidina\}",

year = "2011",

month = dec,

doi = "10.1016/j.fuproc.2011.08.009",

language = "English",

volume = "92",

pages = "2397--2405",

journal = "Fuel Processing Technology",

issn = "0378-3820",

publisher = "Elsevier B.V.",

number = "12",

}

TY - JOUR

T1 - Biodiesel production from waste cooking oil over alkaline modified zirconia catalyst

AU - Wan Omar, Wan Nor Nadyaini

AU - Amin, Nor Aishah Saidina

PY - 2011/12

Y1 - 2011/12

N2 - Screening and catalytic activity of alkaline modified zirconia i.e. Mg/ZrO2, Ca/ZrO2, Sr/ZrO2, and Ba/ZrO 2 as heterogeneous catalyst in biodiesel production from waste cooking oil (WCO) have been investigated. The catalysts were prepared via wet impregnation of alkaline nitrate salts supported on zirconia. Physico-chemical characteristics of the catalysts were analyzed by BET surface area, XRD, FESEM and CO2-NH3-TPD. Among the catalysts screened, Sr/ZrO 2 exhibited higher catalytic activities. Characterization results disclosed Sr/ZrO2 catalyst possessed balanced basic and acid site concentrations with its pore volume, surface area as well as pore diameters suitable for biodiesel production. The balanced active sites facilitated simultaneous transesterification and esterification of WCO. A plausible mechanism has been suggested for the simultaneous reactions. The effects of operating process conditions such as methanol to oil molar ratio, reaction temperature and catalyst loading on biodiesel production in the presence of Sr/ZrO2 were investigated. Methyl ester (ME) yield at 79.7% was produced over 2.7 wt.% catalyst loading (Sr/ZrO2), 29:1 methanol to oil molar ratio, 169 min of reaction time and 115.5 °C temperature.

AB - Screening and catalytic activity of alkaline modified zirconia i.e. Mg/ZrO2, Ca/ZrO2, Sr/ZrO2, and Ba/ZrO 2 as heterogeneous catalyst in biodiesel production from waste cooking oil (WCO) have been investigated. The catalysts were prepared via wet impregnation of alkaline nitrate salts supported on zirconia. Physico-chemical characteristics of the catalysts were analyzed by BET surface area, XRD, FESEM and CO2-NH3-TPD. Among the catalysts screened, Sr/ZrO 2 exhibited higher catalytic activities. Characterization results disclosed Sr/ZrO2 catalyst possessed balanced basic and acid site concentrations with its pore volume, surface area as well as pore diameters suitable for biodiesel production. The balanced active sites facilitated simultaneous transesterification and esterification of WCO. A plausible mechanism has been suggested for the simultaneous reactions. The effects of operating process conditions such as methanol to oil molar ratio, reaction temperature and catalyst loading on biodiesel production in the presence of Sr/ZrO2 were investigated. Methyl ester (ME) yield at 79.7% was produced over 2.7 wt.% catalyst loading (Sr/ZrO2), 29:1 methanol to oil molar ratio, 169 min of reaction time and 115.5 °C temperature.

KW - Biodiesel

KW - Esterification

KW - Heterogeneous catalyst

KW - Transesterification

KW - Waste cooking oil

UR - https://www.scopus.com/pages/publications/80053358815

U2 - 10.1016/j.fuproc.2011.08.009

DO - 10.1016/j.fuproc.2011.08.009

M3 - Article

AN - SCOPUS:80053358815

SN - 0378-3820

VL - 92

SP - 2397

EP - 2405

JO - Fuel Processing Technology

JF - Fuel Processing Technology

IS - 12

ER -

Biodiesel production from waste cooking oil over alkaline modified zirconia catalyst

Abstract

UN SDGs

Keywords

ASJC Scopus subject areas

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