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Effect of Catalyst Supports on Water‐Gas Shift Reaction at Ultrahigh Temperatures Using Syngas
Author(s) -
Chein Rei-Yu,
Fang Chien-Min,
Chyou Yau-Ping,
Chang Shih-Hsien
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201700223
Subject(s) - syngas , catalysis , bimetallic strip , water gas shift reaction , yield (engineering) , materials science , chemical engineering , raw material , composite number , carbon fibers , chemistry , metallurgy , composite material , organic chemistry , engineering
Monometallic and bimetallic catalysts (Pt, Ni, and Pt‐Ni) with single support (Al 2 O 3 , TiO 2 ) and composite support (CeO 2 /Al 2 O 3 , CeO 2 /TiO 2 ) were prepared and tested for water‐gas shift reaction in a tubular quartz reactor. Syngas and steam with different steam‐to‐carbon ratios served as feedstock. The operating pressure was fixed while the reaction temperature was varied. The measured results indicated that the monometallic Ni/Al 2 O 3 catalyst exhibits the lowest CO conversion and H 2 yield as compared with other catalysts. About the same CO conversion can be obtained from Pt and Pt‐Ni catalysts with single or composite support. However, higher H 2 yield can be achieved from the TiO 2 ‐supported catalyst compared with those supported by Al 2 O 3 . The experimental data also indicated that good thermal stability can be reached for the Pt‐based catalysts studied.