A new approach for hydrogen generation from sewage sludge

Qiwu Zhang; Junya Kano

doi:10.1016/j.biortech.2015.11.055

A new approach for hydrogen generation from sewage sludge

Qiwu Zhang, Junya Kano

IMRAM - Center for Mineral Processing and Metallurgy (CMPM)

Wuhan University of Technology

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

A new process to produce hydrogen efficiently from sewage sludge (SWS) was developed with co-grinding operation of the dried SWS with calcium and nickel hydroxides (Ca(OH)₂ and Ni(OH)₂) and subsequent heating of the ground mixture at relatively low temperature below 600°C. A set of analytical methods were used to characterize the ground samples before heating and the gaseous and solid products after heating. Thermo-mass spectroscopic (TG-MS) analysis showed hydrogen occurrence around 450°C. Hydrogen yield over 70 g per kg SWS with concentration of 93.6% was obtained with the hydroxide additions of Ca to C from SWS at 1:1 and Ni to C at 1:6, respectively. X-ray diffraction (XRD) analysis of the solid residues after heating confirmed the existences of calcium carbonate and nickel metal. Based on the obtained results, possible reaction pathway was proposed.

Original language	English
Pages (from-to)	191-194
Number of pages	4
Journal	Bioresource Technology
Volume	201
DOIs	https://doi.org/10.1016/j.biortech.2015.11.055
Publication status	Published - 2016 Feb 1

Keywords

Catalyst
Hydrogen
Mechanochemical
Nickel hydroxide
Sewage sludge

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2015.11.055

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title = "A new approach for hydrogen generation from sewage sludge",

abstract = "A new process to produce hydrogen efficiently from sewage sludge (SWS) was developed with co-grinding operation of the dried SWS with calcium and nickel hydroxides (Ca(OH)2 and Ni(OH)2) and subsequent heating of the ground mixture at relatively low temperature below 600°C. A set of analytical methods were used to characterize the ground samples before heating and the gaseous and solid products after heating. Thermo-mass spectroscopic (TG-MS) analysis showed hydrogen occurrence around 450°C. Hydrogen yield over 70 g per kg SWS with concentration of 93.6% was obtained with the hydroxide additions of Ca to C from SWS at 1:1 and Ni to C at 1:6, respectively. X-ray diffraction (XRD) analysis of the solid residues after heating confirmed the existences of calcium carbonate and nickel metal. Based on the obtained results, possible reaction pathway was proposed.",

keywords = "Catalyst, Hydrogen, Mechanochemical, Nickel hydroxide, Sewage sludge",

author = "Qiwu Zhang and Junya Kano",

note = "Funding Information: This research was financially supported by N ew E nergy and Industrial Technology D evelopment O rganization ( 13401404-0 ), Japan. Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

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AU - Zhang, Qiwu

AU - Kano, Junya

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AB - A new process to produce hydrogen efficiently from sewage sludge (SWS) was developed with co-grinding operation of the dried SWS with calcium and nickel hydroxides (Ca(OH)2 and Ni(OH)2) and subsequent heating of the ground mixture at relatively low temperature below 600°C. A set of analytical methods were used to characterize the ground samples before heating and the gaseous and solid products after heating. Thermo-mass spectroscopic (TG-MS) analysis showed hydrogen occurrence around 450°C. Hydrogen yield over 70 g per kg SWS with concentration of 93.6% was obtained with the hydroxide additions of Ca to C from SWS at 1:1 and Ni to C at 1:6, respectively. X-ray diffraction (XRD) analysis of the solid residues after heating confirmed the existences of calcium carbonate and nickel metal. Based on the obtained results, possible reaction pathway was proposed.

KW - Catalyst

KW - Hydrogen

KW - Mechanochemical

KW - Nickel hydroxide

KW - Sewage sludge

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A new approach for hydrogen generation from sewage sludge

Abstract

Keywords

UN SDGs

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