期刊
ENERGY CONVERSION AND MANAGEMENT
卷 74, 期 -, 页码 395-402出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2013.04.042
关键词
Biodiesel; Transesterification; Waste/used edible oil; Heterogeneous catalyst; Catalysts from waste
资金
- Ministry of Higher Education Malaysia [RDU121207, RDU121208]
- Universiti Malaysia Pahang under GRS [GRS120336]
- Government of East Borneo
For many years, the cost of production has been the main barrier in commercializing biodiesel, globally. It has been well researched and established in the literature that the cost of feedstock is the major contributor. Biodiesel producers are forced to choose between edible and non-edible feedstock. The use of edible feedstock sparks concern in terms of food security while the inedible feedstock needs additional pretreatment steps. On the other hand, the wide availability of edible feedstock guarantees the supply while the choice of non-edible results in a non-continuous or non-ready supply. With these complications in mind, this review attempts to identify possible solutions by exploring the potential of waste edible oils and waste catalysts in biodiesel preparation. Since edible oils are available and used abundantly, waste or used edible oils have the potential to provide plentiful feedstock for biodiesel. In addition, since traditional homogeneous catalysts are less competent in transesterifying waste/used oils, this review includes the possibility of heterogeneous catalysts from waste sources that are able to aid the transesterification reaction with success. (C) 2013 Elsevier Ltd. All rights reserved.
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