High-Temperature Water Gas Shift Reaction Over Fe/Al/Cu Oxide Based Catalysts Using Simulated Waste-Derived Synthesis Gas

• Published in: Catalysis letters 2013-05, Vol.143 (5), p.438-444
• Main Authors: Jeong, Dae-Woon, Subramanian, Vijayanand, Shim, Jae-Oh, Jang, Won-Jun, Seo, Yong-Chil, Roh, Hyun-Seog, Gu, Jae Hoi, Lim, Yong Taek
• Format: Article
• Language: English
• Subjects: Aluminum; Carbon monoxide; Catalysis; Catalysts; Chemistry; Chemistry and Materials Science; Chromium; Computer simulation; Copper; Copper oxides; Exact sciences and technology; General and physical chemistry; High temperature; Hydrogen production; Industrial Chemistry/Chemical Engineering; Iron oxides; Organometallic Chemistry; Physical Chemistry; Selectivity; Shift reaction; Synthesis gas; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Water gas
• ISSN: 1011-372X; 1572-879X
• DOI: 10.1007/s10562-013-0981-y

Simulated waste-derived synthesis gas has been tested for hydrogen production through water gas shift (WGS) reaction in the temperature range of 350–550 °C over chromium free Fe/Al/Cu oxide based catalysts. The CuO loading amount was optimized to get highly active Fe/Al/Cu oxide based catalysts for the high temperature WGS. Despite the high CO content in the feed gas (38.2 % dry basis), 15 % CuO catalyst exhibited the highest CO conversion (86 %) and 100 % selectivity to CO 2 at a very high gas hourly space velocity (GHSV) of 40,057 h −1 due to easier reducibility, the synergy effect of copper and aluminum, and the stability of the active phase (magnetite: Fe 3 O 4 ). Graphical Abstract