http://www.sumobrain.com/patents/wipo/Self-sustainable-mobile-biodiesel-production/WO2010085864.html
A self-sustainable, mobile biodiesel production plant and method are characterized by a compact arrangement of biodiesel production equipment that reduces waste and, in addition, makes it possible to re-use or recycle some of waste. The equipment is arranged on a chassis with an axle and wheels, and the plant can be coupled there to and transported to different locations, and has a self-sustainable design, since it uses the fuel it produces to generate the electric energy supplied to the entire plant, whenever necessary.