Premium
Dynamic Methanation of CO 2 – Effect of Concentration Forcing
Author(s) -
Kreitz Bjarne,
Friedland Jens,
Güttel Robert,
Wehinger Gregor D.,
Turek Thomas
Publication year - 2019
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201800191
Subject(s) - methanation , methane , forcing (mathematics) , catalysis , chemistry , reaction mechanism , chemical engineering , thermodynamics , materials science , organic chemistry , atmospheric sciences , physics , engineering
Investigating the effect of concentration forcing of the CO 2 methanation is not only relevant for power‐to‐gas plants but also for the study of dynamic phenomena of this reaction. In this study a Ni/Al 2 O 3 catalyst is investigated under concentration forcing at industrially relevant conditions. The dynamic experiments allow an evaluation in terms of the reaction rate and enable the study of the reaction mechanism. The experiments show that no methane is formed in the CO 2 ‐rich part of the cycle, whereas a fast hydrogenation of carbonaceous species to methane takes place upon switching to H 2 .