Technical-economic evaluation of Donbas coals as a feedstock for production of metallurgical coke

Journal Article · Sat Jan 01 04:00:00 EST 1977 · Coke Chem., USSR (Engl. Transl.); (United States)

OSTI ID:5891694

Barannik, A G; Kaftan, Yu S; Toryanik, E I; Morozova, V I; Agarkova, A V

This article proposes a method for determination of the comparative technological value of individual grades and technological groups of Donbas coals as feedstocks for production of metallurgical coke. Coal costs account for about 80% of the total cost of chemical-carbonization-product manufacture at Ukrainian plants; these expenditures amount to 85 to 90% of the total in coke production itself. Thus, a change in the cost of coal by only 1% is equivalent to a change of 6 to 9% in total costs for coal mining, preparation, and carbonization. Hence it is important to evaluate coals correctly, in accordance with their technological properties, which govern the yield and quality of such carbonization products as coke, coke-oven gas, coal tar, and crude benzole. If this is not done, the changes in feedstock costs due to variations in coal grade are not compensated for by an appropriate change in the price of the commercial product and the plant is subject to unplanned losses that are difficult to recover. Our proposed method makes it possible to determine the comparative technological value of coals as feedstocks for production of metallurgical coke. By use of composite evaluation techniques, the influence of the comparative technological value of individual grades and technological groups of Donbas coals on carbonization-product yield and quality can be represented by definite coefficients. The scale of current wholesale prices for Donbas coking coals requires refinement. Taking into account the average technological-value coefficients of individual coal grades and the incentive factors for preferential use of grade-G and -GZh coals for carbonization, we can recommend that wholesale prices be scaled more accurately by grades.

• OSTI ID: 5891694
• Journal Information: Coke Chem., USSR (Engl. Transl.); (United States), Journal Name: Coke Chem., USSR (Engl. Transl.); (United States) Vol. 7; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010401* -- Coal & Coal Products-- Carbonization-- (-1987)
CARBONACEOUS MATERIALS
CARBONIZATION
CHARGES
CHEMICAL REACTIONS
COAL
COKE
COKING
COMPARATIVE EVALUATIONS
DECOMPOSITION
ENERGY SOURCES
EUROPE
FOSSIL FUELS
FUELS
MECHANICAL PROPERTIES
MIXING
USSR
YIELDS