Use of vertical ovens to produce special types of coke

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

OSTI ID:6846053

Nechaeva, G I; Sukhorukov, V I; Chevlytko, N K; Gryaznov, N S

Analysis of experience in the operation of vertical ovens and research conducted by the VUKhIN on the carbonization of poor-caking grade 0 coals has shown that it is both expedient and effective to build high-capacity continuous-action coke ovens for the production of special types of coke. In designing ovens with external heating, one should attempt to increase the height of the heating zone (to 8 m or more) and the length of the oven (to 7 to 8 m or more), as well as to employ a high-temperature heating regime, using a refractory with high heat conductivity for the lining. In order to avoid nonuniformity of charge heating, it is best to have narrow ovens (averaging no more than 400 mm in width). When external heating is employed, it is then possible to intensify the carbonization process. A final charge temperature of 800 to 850/sup 0/C is adequate to produce coke with the required volatile-matter content. Carbonization of graded coals is best carried out in vertical ovens with an internal heating agent. Combined heating is best for the carbonization of graded feedstocks from the standpoint of increased heating rate and uniformity of material heating and reduced dilution of the gaseous carbonization products by stack gases, as well as because it reduces coke losses and improves the material balance.

• OSTI ID: 6846053
• Journal Information: Coke Chem., USSR (Engl. Transl.); (United States), Journal Name: Coke Chem., USSR (Engl. Transl.); (United States) Vol. 5; 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 OVENS
DECOMPOSITION
DESIGN
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS