Biomass downdraft gasifier with internal cyclonic combustion chamber: Design, construction, and experimental results

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• 作者：Krushna Patil ; ^a ; ^{krushna.n.patil@okstate.edu"" rel=""nofollow} ; Prakash Bhoi^a ; ^{prakash.bhoi@okstate.edu"" rel=""nofollow} ; Raymond Huhnke^a ; ^{raymond.huhnke@okstate.edu"" rel=""nofollow} ; Danielle Bellmer^a ; ^{danielle.bellmer@okstate.edu"" rel=""nofollow}
• 关键词：Downdraft ; Gasifier ; Biomass ; Wood shavings ; Syngas
• 刊名：Bioresource Technology
• 出版年：2011
• 出版时间：May 2011
• 年：2011
• 卷：102
• 期：10
• 页码：6286-6290
• 全文大小：362 K

文摘

An exploratory downdraft gasifier design with unique biomass pyrolysis and tar cracking mechanism is evolved at Oklahoma State University. This design has an internal separate combustion section where turbulent, swirling high-temperature combustion flows are generated. A series of research trials were conducted using wood shavings as the gasifier feedstock. Maximum tar cracking temperatures were above 1100 °C. Average volumetric concentration levels of major combustible components in the product gas were 22 % CO and 11 % H₂. Hot and cold gas efficiencies were 72 % and 66 % , respectively.