Jump to main content
US EPA
United States Environmental Protection Agency
Search
Search
Main menu
Environmental Topics
Laws & Regulations
About EPA
Health & Environmental Research Online (HERO)
Contact Us
Print
Feedback
Export to File
Search:
This record has one attached file:
Add More Files
Attach File(s):
Display Name for File*:
Save
Citation
Tags
HERO ID
4972381
Reference Type
Journal Article
Title
A study on three-phase CO2 methanation reaction kinetics in a continuous stirred-tank slurry reactor
Author(s)
Lefebvre, J; Trudel, N; Bajohr, S; Kolb, T
Year
2018
Is Peer Reviewed?
1
Journal
Fuel
ISSN:
0016-2361
EISSN:
1873-7153
Publisher
Elsevier
Volume
217
Issue
Elsevier
Page Numbers
151-159
DOI
10.1016/j.fuel.2017.12.082
Web of Science Id
WOS:000427818900017
URL
https://linkinghub.elsevier.com/retrieve/pii/S0016236117316642
Exit
Abstract
The reaction kinetics of the three-phase CO2 methanation for a commercial Ni/SiO2 catalyst suspended in a liquid phase is studied in a continuous stirred-tank slurry reactor at a CO2 partial pressure of 1 bar and temperatures from 220 degrees C to 320 degrees C. By applying different liquids, namely squalane, octadecane, and dibenzyltoluene, showing different gas solubilities, it is found that the gas concentration in the liquid phase and not the partial pressure in the gas phase is the driving force for the CO2 methanation reaction kinetics. The liquid phase does not influence the reaction kinetics but reduces the available gas concentrations and H-2/CO2 ratio on the catalyst surface. Based on these findings, a kinetic rate equation for the three-phase CO2 methanation is developed additionally incorporating the chemical equilibrium limitations relevant in the temperature regime.
Keywords
CO2 methanation; Reaction kinetics; Three-phase methanation; Liquid influence on reaction kinetics; Slurry bubble column reactor
Tags
OPPT
•
Squalane
Literature Search
Fate
WOS (private)
Environmental Hazard
Proquest (private)
Home
Learn about HERO
Using HERO
Search HERO
Projects in HERO
Risk Assessment
Transparency & Integrity