Fuels from croton nuts?

A Kenyan company, Eco Fuels: 

...uses the oil from the seed of the croton nut we produce a liquid fuel which can replace diesel in large stationary engines such as gensets.
The excess husks and seedcake produce an organic fertilizer and plant health products as well as solid fuel which is a charcoal replacement fuel. This reduces demand for wood charcoal and can be sold at prices lower than charcoal.

A Village Capital enterprise they are: 

...processing bio-fuels and organic fertilizer from a commonly-found indigenous tree with no other commercial value in Kenya. The Kenya fertilizer market is a $5 billion market, and the largest constraint to East Kenyan agricultural productivity is soil depletion. Eco-Fuels’ fertilizermaintains soil productivity while serving the top purchasing need of smallholder farmers across Africa. Their pilot has yielded $2k revenue.