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Kinetic modelling for photosynthesis of hydrogen and Methane through catalytic reduction of carbon dioxide with water vapour

conference contribution
posted on 2006-01-01, 00:00 authored by Seng Sing Tan, L Zou, Eric Hu
In a photocatalytic reduction process when products formed are not effectively desorbed, they could hinder the diffusion of intermediates on the surface of the catalyst, as well as increase the chance of collisions among the products, resulting photo-oxidation in a reserve reaction on the surface. This paper analyses a simple kinetic model incorporating the coupled effect of the adsorptive photocatalytic reduction and oxidation. The development is based on Langmuir–Hinshelwood mechanism to model the formation rates of hydrogen and methane through photocatalytic reduction of carbon dioxide with water vapour. Experimental data obtained from literatures have achieved a very good fit. Such model could aid as a tool for related areas of studies. A comparative study using the model developed, showed that product concentration in term of ppm would be an effective measurement of product yields through photocatalytic reduction of carbon dioxide with water vapour.

History

Event

Asia Pacific Congress on Catalysis (4th : 2006 : Singapore)

Series

Catalysis today, v. 131, nos. 1-4.

Pagination

125 - 129

Publisher

Nanyang Technological University

Location

Singapore

Place of publication

Singapore

Start date

2006-12-06

End date

2006-12-08

Language

eng

Publication classification

E2 Full written paper - non-refereed / Abstract reviewed

Title of proceedings

Recent advances in catalysis : selected papers from APCAT 4, Singapore, 6-8 December 2006