Application of a diffusion limiting model to a tube-wall methanation reactor

Journal Article · Fri Apr 01 04:00:00 EST 1977 · Ind. Eng. Chem., Process Des. Dev.; (United States)

DOI:https://doi.org/10.1021/i260062a012· OSTI ID:6618947

Schehl, R R; Weber, J K

The model, developed by Senkam et al. did not correlate the experimentally measured carbon monoxide mole fraction profiles in an annular tube-wall methanation reactor (outer tube 2.0 in. dia coated on the inside with Raney nickel catalyst and solid inner tube 1.5 in. dia) at 300 psig and 385/sup 0/C, with a 3 : 1 hydrogen/carbon monoxide feed at a flow rate of 450 std cu ft/hr. Results showed that the reaction is not diffusion-limited and that kinetic resistance must be included. By using a model for methanation reactors with thermally sprayed catalyst which includes both diffusion and kinetic resistance, e.g., that of Lee and Feldkirchner (Abstract No. S3-528), a remarkably good agreement with experimental data was obtained. The model predicted a CO conversion of 93.7% compared with the measured 91.3%.

• OSTI ID: 6618947
• Journal Information: Ind. Eng. Chem., Process Des. Dev.; (United States), Journal Name: Ind. Eng. Chem., Process Des. Dev.; (United States) Vol. 16:2; ISSN IEPDA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMICAL REACTORS
ELEMENTS
FLUIDS
GASES
MATHEMATICAL MODELS
METALS
METHANATION
NICKEL
OXIDES
OXYGEN COMPOUNDS
SYNTHESIS GAS
TRANSITION ELEMENTS