WSU researchers developed a combined heterogeneous and homogeneous catalyst that reduces overall production costs, expands feedstock options, and enables large volume production in a continuous process as compared to traditional homogeneous biodiesel catalysts.
This unique catalytic transesterification process works better with ethanol compared to methanol can be used in continuous or batch biodiesel production processes and has advantages over existing homogeneous catalyst processes including:- Eliminates use of caustic catalysts that generate significant soap formation and environmental issues - Eliminates large volume of water used to remove homogeneous catalysts and soap by-product - Simplifies the catalyst and biodiesel/glycerol separation process - Catalyst can be recycled
Patent Issued: 8,070,836