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On the basis of the geochemical method, the associative series of C, O, N isotopes have been determined on the basis of indicator microelements. Their relation with the vitrinite content and degree of reduction of Kuznetsk coal has been shown.
Research is reviewed regarding the composition and thermochemical properties of coal fractions of different density. The properties discussed are the thermogravimetric parameters; the free-swelling index; the plastic-layer thickness; the dilatometric characteristics; the yield of fluid (mobile)...
The limitations of State Standard GOST 20330-91 for determining the swelling index are demonstrated in relation to coal with good clinkering properties. An expanded scale of standard profiles for coal identification is proposed.
Relations of the form M
10 = f(M
25), CSR = f(M
25), CRI = f(M
10) and CSR = f(CRI) are investigated for wet- and dry-slaked coke. The corresponding mathematical models-linear regression equations-describe these relations with a mean square deviation that is consistent with the relevant...
Heat-treated tar from the high-speed pyrolysis of Kansko-Achinsk lignite (Russia) and Baganursk lignite (Mongolia), asphalt from Yaregsk petroleum, A-10 softener, and heavy shale oils from gas-generator stations and UTT-3000 systems are promising binders for the manufacture of cold-rammed hearth...
A new patented atomizer operates effectively in absorbers for the removal of ammonia from cokeoven gas. Its introduction reduces the ammonia losses with coke-oven gas from 0.05 to 0.025 g/m3 (the standard is 0.03 g/m3) and increases the yield of the corresponding byproduct—ammonium sulfate. The...
Research regarding the physicochemical properties and application of mixed organic solvents in extraction is reviewed.
The ozonolithic destruction products of kerogens in fuel shales and sapropelic coal from various deposits are compared. The differences in acidic composition may be attributed to the initial bioorganic material and the lithological and geochemical conditions in which it accumulated.
The ecological and energy problems of coke plants are considered. Within that framework, a promising approach is to create an integrated system that includes the coke battery and a unit for utilizing the heat of its smokestack gases and removing their harmful ingredients.
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