Research status on biodiesel and preparation methods of its heterogeneous catalysts
The characteristics of biodiesel are introduced from various aspects,mainly including wide source of raw materials,renewable,clean and eco-friendly,excellent physical and chemical properties,high utilization value of by-products and abundant downstream products.The possibility of replacing fossil diesel with biodiesel is demonstrated.The advantages and disadvantages of various heterogeneous catalysts used in the preparation of biodiesel,as well as their catalytic effects on the transesterification and esterification reactions are also introduced.Finally,the future development directions of biodiesel are prospected.
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