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The article gives information on studies of pulverized natural pyrite and wet-and dry-method synthetic iron sulfide\ as coal liquefaction catalysts. Liquefaction tests were conducted on Tanito Harum coal in the process supporting unit. The dry-method iron sulfide gave a higher yield of oil. The oil
The catalytic cracking of polyolefin pyrolysis waxes has been studied under conditions that mimic the operation of a catalytic cracking unit (FCC). Two commercial catalysts of different properties were used. Yields and compositions of the lumps (dry gases, LPG, gasoline and coke) were compared with
Solid fuels (sources. winning, properties) both fundamrntal studies of particle hrcakage and mineral texture. as well a\ industrial work aimed at improving comminution tcchnol. The comminutlon re\carch program i\*, de\crihed. 97100016 Continuity of kinetics between sub-and supercritical regimes in t