Effective utilization of waste: Development of CH4 dry reforming catalysts from spent nickel metal hydride battery for resource recovery

T. Kanamori; R. Hayashi; M. Matsuda; M. Miyake

doi:10.2495/WM060241

Effective utilization of waste: Development of CH₄ dry reforming catalysts from spent nickel metal hydride battery for resource recovery

T. Kanamori, R. Hayashi, M. Matsuda, M. Miyake

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The resource recovery of nickel metal from the spent nickel metal hydride (Ni-MH) battery was investigated by using the CH₄ dry reforming, aiming at reusing it as a raw material of the Ni-MH battery. From the results, a compound identified as a single phase of NiO by XRD was successfully prepared from the spent Ni-MH battery by a series of chemical processes using HCl and NH₃ aq. solutions followed by calcinations. The resulting NiO exhibited excellent CH₄ conversion in the CH₄ dry reforming, i.e., the CH₄ conversion higher than 96% continued for 50 h when the flow rates of injection gases were controlled at CH ₄/CO₂/Ar = 10:10:80 ml·min^-1. Although the XRD pattern revealed the reduction of NiO to Ni⁰ and the deposition of carbon after the CH₄ dry reforming, the deposition of carbon could be suppressed by changing the injection gas ratio. The resource recovery of nickel metal was, therefore, concluded to be possible through the CH₄ dry reforming over NiO prepared from the spent Ni-MH battery.

Original language	English
Title of host publication	Waste Management and the Environment III
Publisher	WITPress
Pages	217-224
Number of pages	8
Volume	92
ISBN (Print)	1845641736, 9781845641733
DOIs	https://doi.org/10.2495/WM060241
Publication status	Published - 2006
Event	3rd International Conference on Waste Management and the Environment, WASTE MANAGEMENT 2006, WM06 - Malta, Malta Duration: Jun 21 2006 → Jun 23 2006

Other

Other	3rd International Conference on Waste Management and the Environment, WASTE MANAGEMENT 2006, WM06
Country/Territory	Malta
City	Malta
Period	6/21/06 → 6/23/06

Keywords

Nickel metal
Nickel metal hydride secondary battery
Nickel-based catalyst
Resource recovery

ASJC Scopus subject areas

Environmental Science(all)

Access to Document

10.2495/WM060241

Cite this

Kanamori, T, Hayashi, R, Matsuda, M & Miyake, M 2006, Effective utilization of waste: Development of CH₄ dry reforming catalysts from spent nickel metal hydride battery for resource recovery. in Waste Management and the Environment III. vol. 92, WITPress, pp. 217-224, 3rd International Conference on Waste Management and the Environment, WASTE MANAGEMENT 2006, WM06, Malta, Malta, 6/21/06. https://doi.org/10.2495/WM060241

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