Upstream and downstream strategies to economize biodiesel production.
In recent years biodiesel has drawn considerable amount of attention as a clean and renewable fuel. Biodiesel is produced from renewable sources such as vegetable oils and animal fat mainly through catalytic or non-catalytic transesterification method as well as supercritical method. However, as a consequence of disadvantages of these methods, the production cost increases dramatically. This article summarizes different biodiesel production methods with a focus on their advantages and disadvantages. The downstream and upstream strategies such as using waste cooking oils, application of non-edible plant oils, plant genetic engineering, using membrane separation technology for biodiesel production, separation and purification, application of crude glycerin as an energy supplement for ruminants, glycerin ultra-purification and their consequent roles in economizing the production process are fully discussed in this article.
Hasheminejad
Meisam
M
Biodiesel Research Team (BRT), Microbial Biotechnology and Biosafety Department, Agricultural Biotechnology Research Institute of Iran (ABRII), Seed and Plant Improvement Institute's Campus, 31535-1897, Mahdasht Road, Karaj, Iran.
Tabatabaei
Meisam
M
Mansourpanah
Yaghoub
Y
Khatami far
Mahdi
M
Javani
Azita
A
D000818:Animals; D056804:Biofuels / Q000032:analysis* / Q000191:economics* / Q000600:supply & distribution; D001709:Biotechnology / Q000191:economics* / Q000379:methods*; D002384:Catalysis; D014866:Waste Products / Q000032:analysis
D056804:Biofuels; D014866:Waste Products