Comparative study of carbon formation on supported in catalysts during CH4 reforming using TEOM, TPO-IR, TPD-IR and TGA techniques

Jian Zheng, Chunshan Song, Wei Pan, Lu Sun, Shankar Nataraj, Frederick Wilhelm, John N. Armor

Research output: Contribution to journalConference article

6 Scopus citations

Abstract

Four different methods (TEOM, TPO-IR, TPD-IR, and TPO-TGA) were used comparatively for more accurate and reliable measurements of carbon formation on used Ni/Al2O3 reforming catalysts with and without Ca-promotion. TPO-TGA could not discriminate carbon burn off and Ni oxidation, especially when only a trace amount of carbon was formed that needs to be detected. TEOM was run on-line during methane reforming, it could avoid any other effects besides the reforming reactions. There was a fairly good correlation between the two techniques. The un-promoted C11-9-09 showed a better consistence between the two methods, noting that the slope of the linear trend line is very close to 1, while G-91 showed larger amount of carbon detected by TEOM than by TPO-IR.

Original languageEnglish (US)
Pages (from-to)801-803
Number of pages3
JournalACS Division of Fuel Chemistry, Preprints
Volume48
Issue number2
StatePublished - Sep 1 2003

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All Science Journal Classification (ASJC) codes

  • Energy(all)

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