Patent ID: 9096810
Filing Date: 2015-08-04
Classification: C10L,Y02E

Abstract:
1. A method for producing a bio-coal, comprising the following steps: (a) lowering the moisture content of a fiber residue obtained after oil extraction of oil palm fruit to less than 25%; (b) after step (a), cutting the fiber residue; (c) after step (b), pelletizing the fiber residue into short-fiber pellets; (d) drying the short-fiber pellets to reduce the moisture content of the short-fiber pellets to below 10%; and (e) after step (d), carbonizing the short-fiber pellets at a temperature below 300° C.; wherein, after step (b) and before step (c), the fiber residue is subjected to steam heating at a temperature ranging from 80° C. to 140° C. to adjust the moisture content of the fiber residue to a range between 15% and 30%.