Biomass powder and its manufacturing method, and a biomass composite molding from oil palm and manufacturing method thereof

Biomass powder from a suitable oil palm as a homogeneous industrial fibrous materials and using the same, provides an excellent composite compact mechanical properties. Biomass powder from oil palm, in the derivative curve of thermogravimetric reduction not have a peak in the temperature range of one hundred and eighty to three hundred twenty ° C., has a peak at a temperature range of 300 to 400 ° C., 50% by mass or more major axis 1μm~ It is in the range of 500μm. Biomass composite compacts, the prepolymer of the biomass powder and a thermoplastic resin or a thermosetting resin 5: 95 to 80: obtained by molding a composition containing 20 mass ratio of.