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Deactivation of nickel catalysts in the methanization of hydrogen/carbon monoxide mixtures under pressure

Abstract

The deactivation course of nickel methanization catalysts was investigated in the temperature range of 310/sup 0/C to 370/sup 0/C and in the pressure region of 20 to 80 bar. Raising the CO partial pressure accelerated the deactivation whereas raising the H/sub 2/ partial pressure slowed it down. An influence of the temperature could not be clearly recognized. The deactivation got slower with greater dwell time and larger degree of conversion. Two hypotheses to explain the deactivation are given.
Authors:
Publication Date:
Jan 01, 1979
Product Type:
Book
Reference Number:
EDB-82-055126
Resource Relation:
Other Information: Thesis
Subject:
10 SYNTHETIC FUELS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CARBON MONOXIDE; METHANATION; CATALYSTS; INACTIVATION; BINARY MIXTURES; CHEMICAL REACTION KINETICS; EXPERIMENTAL DATA; HIGH TEMPERATURE; HYDROGEN; MIXING RATIO; NICKEL; PRESSURE DEPENDENCE; TABLES; TEMPERATURE DEPENDENCE; THERMODYNAMICS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; DATA; DISPERSIONS; ELEMENTS; INFORMATION; KINETICS; METALS; MIXTURES; NONMETALS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; REACTION KINETICS; TRANSITION ELEMENTS; 090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989); 400201 - Chemical & Physicochemical Properties
OSTI ID:
5822332
Country of Origin:
Germany
Language:
German
Submitting Site:
DE
Size:
Pages: 179
Announcement Date:

Citation Formats

Zeeb, H P. Deactivation of nickel catalysts in the methanization of hydrogen/carbon monoxide mixtures under pressure. Germany: N. p., 1979. Web.
Zeeb, H P. Deactivation of nickel catalysts in the methanization of hydrogen/carbon monoxide mixtures under pressure. Germany.
Zeeb, H P. 1979. "Deactivation of nickel catalysts in the methanization of hydrogen/carbon monoxide mixtures under pressure." Germany.
@misc{etde_5822332,
title = {Deactivation of nickel catalysts in the methanization of hydrogen/carbon monoxide mixtures under pressure}
author = {Zeeb, H P}
abstractNote = {The deactivation course of nickel methanization catalysts was investigated in the temperature range of 310/sup 0/C to 370/sup 0/C and in the pressure region of 20 to 80 bar. Raising the CO partial pressure accelerated the deactivation whereas raising the H/sub 2/ partial pressure slowed it down. An influence of the temperature could not be clearly recognized. The deactivation got slower with greater dwell time and larger degree of conversion. Two hypotheses to explain the deactivation are given.}
place = {Germany}
year = {1979}
month = {Jan}
}