Investigation on the effect of water vapor on the catalytic combustion of methane on platinum. (3rd April 2018)

• Record Type: Journal Article
• Authors: Zhang, Peng; Ran, Jingyu; Zhang, Zhien; Du, Xuesen; Qi, Wenjie; Niu, Juntian
• Is Part Of: Petroleum science and technology. Volume 36:Number 7(2018)
• Page Start: 494
• Page End: 499
• Publication Date: 2018-04-03
• Subjects: micro-scale -- H2O vapor -- ignition temperature -- catalytic combustion; Liquid fuels -- Periodicals; Petroleum -- Periodicals; 665.505
• DOI: 10.1080/10916466.2017.1421970
• Languages: English
• ISSNs: 1091-6466

Abstract

ABSTRACT: The effect of H2 O on the catalytic combustion of CH4 on Pt was investigated experimentally and numerically. The ignition temperature obtained by measuring the exit temperature of the H2 O/CH4 /Air mixtures flow through Pt coated honeycomb channels showed that the ignition temperature was related to the CH4 and H2 O mole fraction. The numerical results showed that the adsorption of H2 O blocked CH4 oxidation, leading to the increase of the ignition temperature and the reforming reaction did not occur with C/O ratio less than 0.43. However, with C/O ratio increasing, H2 O could produce catalytic reforming reaction with CH4, and H2 produced in the reaction could increase the conversion of CH4 . This study is helpful to provide some useful information for the design of the micro-combustor.