Notice of RetractionFuel gas production from catalytic steam gasification of municipal solid wastes

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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The catalytic steam gasification of municipal solid wastes (MSW) for fuel gas production was experimentally investigated in a combined fixed bed reactor using the newly developed nano-NiO/_γ-Al₂O₃ catalyst. A series of experiments have been performed to explore the effects of catalyst presence, catalytic temperature, steam to MSW ratio (S/M) and MSW particle size on the composition and yield of gasification gases. The experiments results indicated that the supported NiO/_γ-Al₂O₃ catalyst had a high activity of cracking tar and hydrocarbons as well as upgrading the gas quality in catalytic steam gasification of municipal solid wastes. Catalytic temperature was crucial for the overall gasifiation process, a higher temperature contributed to more hydrogen production and gas yield. Comparing with MSW catalytic gasification, the introduction of steam improved gas quality and yield, the S/M ratio of 1.33 was found as the optimum operating condition in the catalytic steam gasification of municipal solid wastes. It was also shown that a smaller particle was more favorable for gas quality and yield.