Prospects for including L'Vovsk-Volynsk coals in carbonization blends for Ukrainian plants

Journal Article · Thu Jan 01 04:00:00 EST 1981 · Coke Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5629098

Tyutyunnikov, Yu B; Koyuda, V A; Kaftan, Yu S; Drozdnik, I D; Pustovoit, M I; Shifrin, S I; Pivnyak, V I

The Ukrainian coking industry is currently experiencing difficulties over coal supplies. It is therefore necessary to consider the possibility of carbonizing coals from the L'vovsk-Volynsk coalfield. The mining costs in the L'vovsk-Volynsk coalfield are much lower than in the Donbas (by 36 to 37%) but higher than in the Kuzbas (by 4 to 7%). The cost of coal mined by the Ukrzapadugol Combine in 1977 for example was 10.59 rubles/ton. In June 1978, it was decided to include L'vovsk-Volynsk coals in the blend carbonized at the Dneprodzerzhinsk C and CW. These coals were substituted for 10 to 14% of coals from the Samarskaya pit (Western Donbas), leaving the proportions of the other coals in the blend virtually unchanged. The material balance for the coke ovens showed increased yields of coke-oven gas (0.2% up) and crude benzol (0.05% up). More coke-oven gas was produced during the experimental period, although the volatile matter of the charge was lower. The reason lies in the lower thermal stability of the vapor phase formed by the volatile substances; this is confirmed by the 0.4% increment in the hydrogen content of the coke-oven gas formed under comparable carbonization conditions. The introduction of L'vovsk-Volynsk coals in the blend carbonized at the Dneprodzerzhinsk C and CW increased the yield of >25 mm coke and reduced that of <10 mm coke. The M25 strength index was improved by 0.2%, while the M10 index was 0.07% poorer.The overall economic effect of introducing L'vovsk-Volynsk coals (after correction for the change in coke quality) amounted to savings in 1978 of 896,100 rubles. The coals mined in the Velikomostovsk and Mezherechensk regions of the L'vovsk-Volynsk coalfield, which have hitherto been used solely as fuels, should be reserved for the Ukrainian coking plants and used to produce metallurgical coke.

• OSTI ID: 5629098
• Journal Information: Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 4; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010401* -- Coal &amp; Coal Products-- Carbonization-- (-1987)
AMMONIA
AROMATICS
ASIA
CARBONACEOUS MATERIALS
CARBONIZATION
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COAL
COAL TAR
COKING
DATA
DECOMPOSITION
EASTERN EUROPE
ENERGY SOURCES
EUROPE
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
MATERIALS
MIXING
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHENOLS
TAR
USSR
YIELDS