Influence of heating rate on quality of needle coke in calcining

Journal Article · Tue May 01 00:00:00 EDT 1984 · Chem. Technol. Fuels Oils (Engl. Transl.); (United States)

OSTI ID:6785161

Akhmetov, M M; Karpinskaya, N M; Shipkov, N N

This article examines the calcination of raw coke in hearth and chamber furnaces. Three coke samples with identical degrees of calcining were taken from each furnace. The heating rate was calculated from measurements of the coke temperature as it moved in the furnace under conditions of a stable and characteristic calcining regime. The coke temperature was measured by means of a chromel-alumel thermocouple. Electric resistivity and carbon and hydrogen contents are practically identical for the cokes calcined in the hearth and chamber furnaces. The difference between the quality indexes of the cokes is attributed to the difference in the heating rates. The results indicate that a major disadvantage of the hearth furnace is its high heating rate. It is suggested that the hearth furnace should not be used in calcining cokes that must meet rigid quality requirements.

• Research Organization: Bashkirian Sci-Res Inst. for Petroleum Processing
• OSTI ID: 6785161
• Journal Information: Chem. Technol. Fuels Oils (Engl. Transl.); (United States), Vol. 19:9; Other Information: Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 9, pp. 13-15, September 1983
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
COKE
CALCINATION
HEATING RATE
PETROLEUM PRODUCTS
CARBON
ELECTRIC CONDUCTIVITY
FURNACES
HYDROGEN
QUALITY CONTROL
SAMPLING
STABILITY
TEMPERATURE MEASUREMENT
THERMOCOUPLES
CHEMICAL REACTIONS
CONTROL
DECOMPOSITION
ELECTRICAL PROPERTIES
ELEMENTS
MEASURING INSTRUMENTS
NONMETALS
PHYSICAL PROPERTIES
PYROLYSIS
THERMOCHEMICAL PROCESSES
020500* - Petroleum- Products & By-Products