Method of transforming a crop waste into a solid fuel and a solid fuel made by the method

Abstract

A method of transforming a crop waste into a solid fuel includes the steps of dehydrating the crop waste such as rice husks, rice stalks, hays, or plant stems to have a water content of from 18% to 30% by weight, smashing and stirring; adding an additive having clay ingredient, and compressing at a temperature of 150 to 210 degrees Celsius and a pressure of 300 Psi/cm 2 to 600 Psi/cm 2 to form a block-shaped fuel.

1 . A method of transforming a crop waste into a solid fuel, comprising the following steps of:
 A. dehydrating: the crop waste being dehydrated to have a water content of from 18% to 30% by weight;   B. smashing and stirring: smashing the crop waste into small particles or powders and stirring evenly;   C. adding additive: adding an additive having clay into the crop waste; and   D. compressing: compressing the crop waste into a block-shaped fuel at a temperature of from 150° C. to 210° C. and a pressure of from 300 Psi/cm 2  to 600 Psi/cm 2 .   
   
   
       2 . The method of transforming a crop waste into a solid fuel, as claimed in  claim 1 , wherein the dehydrating in step A is done by exposure to sunlight or machine processing. 
   
   
       3 . The method of transforming a crop waste into a solid fuel, as claimed in  claim 1 , wherein the crop waste is dehydrated to have a water content of 25% by weight. 
   
   
       4 . The method of transforming a crop waste into a solid fuel, as claimed in  claim 1 , wherein the compressing in step D is formed by a mold and processed with heat and instant cooling. 
   
   
       5 . The method of transforming a crop waste into a solid fuel, as claimed in  claim 1 , wherein the block-shaped fuel is treated with carbonization. 
   
   
       6 . A solid fuel made by the method of transforming a crop waste into a solid fuel as claimed in  claim 1 . 
   
   
       7 . The solid fuel, as claimed in  claim 6 , wherein the crop waste is selected from one of rice husk, rice stalk, hay and plant stem. 
   
   
       8 . The solid fuel, as claimed in  claim 6 , wherein the clay is aluminosilicate.