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  • Title: Upstream and downstream strategies to economize biodiesel production.
    Author: Hasheminejad M, Tabatabaei M, Mansourpanah Y, Khatami far M, Javani A.
    Journal: Bioresour Technol; 2011 Jan; 102(2):461-8. PubMed ID: 20974530.
    Abstract:
    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.
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