Selecting the optimal conditions of charge preheating before coking at the Western Siberia Iron and Steel Works

Journal Article · Tue Jan 01 04:00:00 EST 1980 · Coke Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5571734

P'yankov, B F; Ryabchenko, A D; Shkoller, M B; Makarov, G N; Zhitov, B N

Extensive laboratory and industrial tests are being conducted at the Western Siberian Iron and Steel Works (I and SW) on the adoption of preheating of coking. The present article describes the results of laboratory investigations of the effect of the free oxygen content in the gaseous heat carrier and the final charge preheating temperature on the technological properties of the charge and the quality of the blast furnace coke, as well as the yield and quality of the coking products: 1. An increase in the free oxygen concentration in the heat carrier to 8% degrades the strength properties of the coke - the crushability and abradability are increased. 2. Charge preheating to 200 to 250/sup 0/C, even with a low oxygen concentration in the heat carrier, is accompanied by degradation of the physical and mechanical properties of the coke. 3. The optimal temperature of charge preheating before coking at the Western Siberia I and SW was found to be in the 150 to 200/sup 0/C range, and the free oxygen concentration in the heat carrier should not significantly exceed 0.4 to 0.6%. 4. Preheating of a coal charge before coking has no significant effect on the yield and quality of the resulting coking products. There is a slight increase in the coke yield, but a decrease in the yield of tar, crude benzol, ammonia and water of combustion. The proportion of benzene in the crude benzol rose and the quantity of toluene and xylene decreased.

• OSTI ID: 5571734
• Journal Information: Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 1; 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
CHEMICAL REACTIONS
COAL
COKE
COKING
DATA
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HEAT TREATMENTS
INERT ATMOSPHERE
INFORMATION
MATERIALS
MECHANICAL PROPERTIES
NONMETALS
NUMERICAL DATA
OPTIMIZATION
OXYGEN
QUANTITY RATIO
YIELDS