The Influence of Catalyst and Temperature on Pine Sawdust Gasification Performance by an Externally Heated Gasifier

Abstract

In the present study the catalytic steam gasification of biomass to produce hydrogen-rich gas with calcined dolomite and Nano-NiO/γ-Al₂O₃ as catalyst in an externally heated fixed-bed reactor was investigated. The influence of the catalyst and reactor temperature on gasification performance was studied at the temperature range of 700–900°C. Over the ranges of experimental conditions examined, Nano-NiO/γ-Al₂O₃ and calcined dolomite both revealed better catalytic performance, at the presence of steam tar was completely decomposed as temperature increases from 800 to 900°C. A higher temperature resulted in more H₂ and CO₂ production, and dry gas yield. The highest H₂ content of 51.02 V% and the highest H₂ yield of 1.66 m³/kg biomass were observed at the highest temperature level of 900°C.

Keywords:

• biomass
• catalyst
• hydrogen rich gas
• steam gasification

Notes

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