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A review on non-edible oil as a potential feedstock for biodiesel: physicochemical properties and production technologies
Authors:Marwan Abdul Hakim Shaah  Md. Sohrab Hossain  Faisal Aboelksim Salem Allafi  Alyaa Alsaedi  Norli Ismail  Mohd Omar Ab Kadir  Mardiana Idayu Ahmad
Affiliation:School of Industrial Technology, Universiti Sains Malaysia, 11800 USM Penang Malaysia, Fax: +6046533678, +6046532216, +6046532214 ; Pultex Sdn Bhd, Jalan Kampung Jawa, Bayan Baru, 11950 Bayan Lepas Penang Malaysia
Abstract:There is increasing concern regarding alleviating world energy demand by determining an alternative to petroleum-derived fuels due to the rapid depletion of fossil fuels, rapid population growth, and urbanization. Biodiesel can be utilized as an alternative fuel to petroleum-derived diesel for the combustion engine. At present, edible crops are the primary source of biodiesel production. However, the excessive utilization of these edible crops for large-scale biodiesel production might cause food supply depletion and economic imbalance. Moreover, the utilization of edible oil as a biodiesel feedstock increases biodiesel production costs due to the high price of edible oils. A possible solution to overcome the existing limitations of biodiesel production is to utilize non-edible crops oil as a feedstock. The present study was conducted to determine the possibility and challenges of utilizing non-edible oil as a potential feedstock for biodiesel production. Several aspects related to non-edible oil as a biodiesel feedstock such as overview of biodiesel feedstocks, non-edible oil resources, non-edible oil extraction technology, its physicochemical and fatty acid properties, biodiesel production technologies, advantages and limitation of using non-edible oil as a feedstock for biodiesel production have been reviewed in various recent publications. The finding of the present study reveals that there is a huge opportunity to utilize non-edible oil as a feedstock for biodiesel production.

There is increasing concern regarding alleviating world energy demand by determining an alternative to petroleum-derived fuels due to the rapid depletion of fossil fuels, rapid population growth, and urbanization.
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