Solid fuel

Abstract

[Object] To provide a solid fuel suitable for thermal power generation by making use of the residue left after beneficial seeds, grains or bulbs are collected. [Solution] A solid fuel which comprises a composition containing 70 wt % or more, on dry basis, of dried Arundo donax, Leucaena leucocephala, Saccharum officinarum, Manihot esculenta , straw, seaweed, seagrass or algae and which is hot compression molded.

1 . A solid fuel which comprises a composition containing 70 wt % or more, on dry basis, of dried  Arundo donax, Leucaena leucocephala, Saccharum officinarum, Manihot esculenta , straw, seaweed, seagrass or algae and which is hot compression molded. 
     
     
         2 . The solid fuel according to  claim 1 , wherein the composition contains 80 wt % or more, on dry basis, of dried  Arundo donax, Leucaena leucocephala, Saccharum officinarum, Manihot esculenta , straw, seaweed, seagrass or algae. 
     
     
         3 . The solid fuel according to  claim 1 , wherein the composition contains 85 wt % or more, on dry basis, of dried  Arundo donax, Leucaena leucocephala, Saccharum officinarum, Manihot esculenta , straw, seaweed, seagrass or algae. 
     
     
         4 . The solid fuel according to  claim 1  which is obtained by compression molding the composition at a temperature of 80 to 150° C. 
     
     
         5 . The solid fuel according to  claim 1 , wherein the composition contains 80 wt % or more, on dry basis, of  Arundo donax.    
     
     
         6 . The solid fuel according to  claim 1 , wherein the composition contains 80 wt % or more, on dry basis, of  Leucaena leucocephala.    
     
     
         7 . The solid fuel according to  claim 1 , wherein the composition contains 80 wt % or more, on dry basis, of  Saccharum officinarum.    
     
     
         8 . The solid fuel according to  claim 1 , wherein the composition contains 80 wt % or more, on dry basis, of Manihot esculenta. 
     
     
         9 . The solid fuel according to  claim 1 , wherein the composition contains 80 wt % or more, on dry basis, of straw. 
     
     
         10 . The solid fuel according to  claim 1 , wherein the composition contains 80 wt % or more, on dry basis, of seaweed. 
     
     
         11 . The solid fuel according to  claim 1 , wherein the composition contains 80 wt % or more, on dry basis, of seagrass. 
     
     
         12 . The solid fuel according to  claim 1 , wherein the composition contains 80 wt % or more, on dry basis, of algae. 
     
     
         13 . The solid fuel according to  claim 1  having a calorific value of 15 to 30 Mj/kg. 
     
     
         14 . The solid fuel according to  claim 1  having an average size of 15 to 3,500 cm 3 . 
     
     
         15 . The solid fuel according to  claim 1  having an apparent specific gravity of 0.3 to 0.6 g/cm 3 . 
     
     
         16 . The solid fuel according to  claim 1  having a fragmentation ratio of 5 wt % or less in a form retention stability test. 
     
     
         17 . The solid fuel according to  claim 1  which is used for power generation. 
     
     
         18 . Use of the solid fuel of  claim 1  as a fuel for power generation.