Kinetics of the formation of pyrocarbon during the thermal decomposition of methane, ethylene, and benzene on quartz

Journal Article · Tue Apr 01 04:00:00 EST 1986 · Kinet. Catal. (Engl. Transl.); (United States)

OSTI ID:6157463

Tesner, P A; Shein, O G

The kinetics of pyrocarbon formation of quartz filaments during the decomposition of methane, ethylene, and benzene have been studied. It is shown that an initial increase in the rate of pyrocarbon formation is accompanied by an increase in the surface area of the specimens, which is explained by roughness arising in the growing film of pyrocarbon. The steady-state rate of pyrocarbon formation, calculated when taking roughness into account, is established considerably earlier than the steady-state rate calculated for an initial geometrical surface. The results obtained provide an explanation for the disparity observed between the rate constants for pyrocarbon formation on quartz fibers and on carbon black.

• Research Organization: All-Union Scientific-Research Institute for Natural Gases, Moscow, USSR
• OSTI ID: 6157463
• Journal Information: Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 26:5; ISSN KICAA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKANES
ALKENES
AROMATICS
BENZENE
CARBIDES
CARBON
CARBON BLACK
CARBON COMPOUNDS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
ETHYLENE
FIBERS
FILMS
HYDROCARBONS
KINETICS
METHANE
MINERALS
NONMETALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
PYROLYTIC CARBON
QUARTZ
REACTION KINETICS
ROUGHNESS
SILICON COMPOUNDS
SILICON OXIDES
STEADY-STATE CONDITIONS
SURFACE AREA
SURFACE PROPERTIES
SYNTHESIS
THERMOCHEMICAL PROCESSES