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01 Solid fuels (preparation) a sludge, onto coal surface. Treatment of coal may also be carried out by oxidation of Fe*+ in the wastewater to Fe3+ prior to addition of the crushed coal, followed by increase of pH to 2-5 for deposition of Fe (III) compound onto coal surface. Gas oil is obtained at high yield in gasification of coal, manufacture of tar, char, etc.
Microbial solubilization of oxidized coal and lignite with Poria cocos in air-lift fermentor
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Boiler ash deposits generated during combustion of coal, biomass, black liquor, and energetic materials affect both the net plant efficiency and operating strategy of essentially all boilers. Such deposits decrease convective and radiative heat exchange with boiler heat transfer surfaces. In many ca
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.