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0 1 Solid fuels (derived solid fuels)
Development of bio-briquette and technology transfer to developing countries Kamide, M. Eco Ind., 1997, 2, (7) 28-34. (In Japanese) Comprised of pulverized coal, biomass and lime as a desulfurizer if necessary, the bio-briquette, or bio-coal, represents a promising alternative for kerosene or firewood, of which excess uses are to be limited in view of conservation of natural resources and environment.
After the manufacturing process is briefly described, its combustion characteristics are presented, including good ignition, stable and clean burning with much less emission of smoke, SO, and NO,. The technological transfer of the biobriquette to developing countries is under development.
Effect of addition of boron carbide on the graphitization and oxidation resistance of raw cokes Youm, H. N. et al. Yoop Hokhoechi, 1997, 34, (4). 413-419. (In Korean) Additions of O-25 wt% B4C to cokes were carried out to produce specimens that were subsequently sintered in Ar atmosphere at 2200ยฐC. The effects of B4C content on graphitization and oxidation resistance of cokes were investigated. B4C accelerates the graphitization of cokes and at 2200ยฐC the degree of graphitization increased from 0.33 which is the value of pure carbon to 0.56, which increased bulk density and porosity. Bending strength increased as the graphitization temperature increased. Oxidation resistance property was greatly improved when B4C was added at > 10 wt% at 800ยฐC and at 220 wt% at 1000ยฐC. A thin layer of BzOs glass phase on the surface of the composite was identified to increase the oxidation resistance.
๐ SIMILAR VOLUMES
The coking pressure in a coke oven, which is caused by the internal gas pressure in the coal plastic layer, is determined by the gas permeability of the layer. The gas permeability of the plastic layer depends on its density as well as the physical property of the plastic coal itself. The plastic la
10 Engines (power generation and propulsion, electrical vehicles) that of tar decomposition by Weibull distribution function. The formation and development of anisotropic textures is obstructed by the reaction between the mesophase from the pyrolysis of caking coal and the char from sawdust, in cont