Hydrogen production through hydrothermal gasification of industrial wastewaters using transition metal oxide catalysts

Hydrogen production through hydrothermal gasification of industrial wastewaters using transition... Article history: Hydrothermal gasification of three different industrial waste streams (distillery, oil refinery and petro- Received 4 December 2015 chemical complex) was investigated in a batch reactor. Catalytic activity of three transition metal oxide Received in revised form 29 March 2016 catalysts (MnO , CuO and Co O ) with various catalyst loadings (20, 40 and 60 wt%) was also studied 2 3 4 Accepted 29 March 2016 at various temperatures (300–375 C) and reaction times (15, 30, 45 min). It was revealed that distillery Available online 30 March 2016 wastewater possessed a great potential for hydrogen production compared to other wastewaters. MnO was determined as a weak catalyst for hydrothermal gasification, while Co O was the best choice accord- 3 4 Keywords: ing to both aspects of gasification efficiency and H mole fraction. The order of catalytic activity of catalysts Hydrothermal for hydrogen production was as follow: Co O > CuO > MnO . It was also observed that 40 wt% loading 3 4 2 Gasification of Co O was the optimum value to gain the maximum attainable hydrogen from distillery wastewater. 3 4 Hydrogen Moreover, higher temperature (375 C) and longer reaction time (45 min) were favorable http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Journal of Supercritical Fluids Elsevier

Hydrogen production through hydrothermal gasification of industrial wastewaters using transition metal oxide catalysts

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier B.V.
ISSN
0896-8446
eISSN
1872-8162
D.O.I.
10.1016/j.supflu.2016.03.028
Publisher site
See Article on Publisher Site

Abstract

Article history: Hydrothermal gasification of three different industrial waste streams (distillery, oil refinery and petro- Received 4 December 2015 chemical complex) was investigated in a batch reactor. Catalytic activity of three transition metal oxide Received in revised form 29 March 2016 catalysts (MnO , CuO and Co O ) with various catalyst loadings (20, 40 and 60 wt%) was also studied 2 3 4 Accepted 29 March 2016 at various temperatures (300–375 C) and reaction times (15, 30, 45 min). It was revealed that distillery Available online 30 March 2016 wastewater possessed a great potential for hydrogen production compared to other wastewaters. MnO was determined as a weak catalyst for hydrothermal gasification, while Co O was the best choice accord- 3 4 Keywords: ing to both aspects of gasification efficiency and H mole fraction. The order of catalytic activity of catalysts Hydrothermal for hydrogen production was as follow: Co O > CuO > MnO . It was also observed that 40 wt% loading 3 4 2 Gasification of Co O was the optimum value to gain the maximum attainable hydrogen from distillery wastewater. 3 4 Hydrogen Moreover, higher temperature (375 C) and longer reaction time (45 min) were favorable

Journal

The Journal of Supercritical FluidsElsevier

Published: Aug 1, 2016

References

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