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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 2200Β°C. The effects of B4C content on graphitization and oxidation resistance of cokes were investigated. B4C accelerates the graphitization of cokes and at 2200Β°C 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 800Β°C and at 220 wt% at 1000Β°C. A thin layer of BzOs glass phase on the surface of the composite was identified to increase the oxidation resistance.
π SIMILAR VOLUMES
03 Gaseous fuels (sources, propetiies, recovery, treatment) ## 98103678 Technology of methyl ester production and its application to biodiesel Gutsche, B. FettlLipid, 1997, 99, (12) 418-427. (In German) Over the last decade, rapid development of the technology for Me ester production from plant o
efficiency; the former gave the similar oil yield to that with tetralin solvent, while the latter did the lower yield because of its too high hydrogen acceptability. The liquefaction scheme for the higher efficiency is discussed in terms of reaction conditions including catalysts and solvents.
03 Gaseous fuels (sources, properties, recovety, treatment) results suggest that the particle break-up that occurred on Raney Fe was along the narrow crack and did not cause continuous formation of powders. However, the varying distribution of the catalyst particle had a slight effect on the activit
In Japanese) Coal briquettes are manufactured with this mixing-heating apparatus. It includes a spiral vane positioned on the outer surface of rotation shaft for mixing raw materials along guideways of axial direction and a heating method for heating the raw materials. Heating is done inside the rot