Catalyst durability in steam reforming of thermally decomposed waste wood

Abstract

Thermal gasifi cation and reforming technologies applicable over a wide temperature range were investigated for high effi ciency and for the calorifi c value of the gas evolved from organic waste such as woody debris. The durability of the reforming catalyst and the availability of catalyst regeneration were investigated using laboratoryscale catalytic reformers and a gasifi er. Commercial Nibased catalyst and calcined limestone (CaO) were applied to the reforming reaction. The results of woody waste gasifi cation and reforming revealed the hydrogen concentration produced to be sustained at a high catalyst temperature of 1123 K, which prevented the catalyst from deactivating. The results also indicated that catalyst regeneration by air oxidation at the same temperature would be effective for enhancing catalytic activity.

Characteristics of Chars from Woody Wastes and Their Application to Immobilization Carriers for Fermentative Hydrogen Production

“…Biohydrogen production and pyrolysis (gasification) are sustainable, carbon-neutral systems of hydrogen production because they utilize biomass. Fermentative hydrogen production is suitable for wet biomass, while gasification is suitable for dry biomass, and the research and development of both processes are advancing (Sano et al, 2006;Kobayashi and Kawamoto, 2010).…”