Tubular dual-layer MFI zeolite membrane reactor for hydrogen production via the WGS reaction: Experimental and modeling studies
| Autor: | Y.S. Lin, Xueliang Dong, Zebao Rui, Haibing Wang |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Chemistry(all)
Membrane reactor Hydrogen Chemistry General Chemical Engineering chemistry.chemical_element General Chemistry Industrial and Manufacturing Engineering Water-gas shift reaction Barrier layer Membrane Chemical engineering Chemical Engineering(all) Environmental Chemistry Organic chemistry Zeolite Space velocity Hydrogen production |
| Zdroj: | Chemical Engineering Journal. 268:219-229 |
| ISSN: | 1385-8947 |
| Popis: | Water-gas shift (WGS) reaction is an important intermediate step in converting fossil fuels to hydrogen (H2) for chemical production or power generation. Catalytic membrane reactor with a H2 perm-selective membrane can improve WGS reaction conversion and separate H2 from carbon dioxide (CO2) simulta- neously. In this work, experimental work and modeling analysis were performed on WGS in a tubular ZSM-5/silicalite bilayer membrane composed of a 3 lm ZSM-5 layer, a 8 lm silicalite base layer and a 2 lm YSZ barrier layer supported on a-alumina substrate. The experimental and modeling studies demonstrated that temperature, H2O/CO ratio, gas hourly space velocity (GHSV) and feed pressure are key factors that determine the WGS performance in the tubular zeolite membrane reactor. At 500 C and under 5 atm with the H2O/CO ratio of 3.0 and GHSV of 72,000 h |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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