Guo X J, Xiao B, Zhang X L, Luo S Y, He M Y
School of Environment and Materials Engineering, Yantai University, Road. Qingquan 32, Yantai 264005, China.
Bioresour Technol. 2009 Jan;100(2):1003-6. doi: 10.1016/j.biortech.2008.07.007. Epub 2008 Aug 17.
Based on biomass micron fuel (BMF) with particle size of less than 250 microm, a cyclone gasifier concept has been considered in our laboratory for biomass gasification. The concept combines and integrates partial oxidation, fast pyrolysis, gasification, and tar cracking, as well as a shift reaction, with the purpose of producing a high quality of gas. In this paper, experiments of BMF air-stream gasification were carried out by the gasifier, with energy for BMF gasification produced by partial combustion of BMF within the gasifier using a hypostoichiometric amount of air. The effects of ER (0.22-0.37) and S/B (0.15-0.59) and biomass particle size on the performances of BMF gasification and the gasification temperature were studied. Under the experimental conditions, the temperature, gas yields, LHV of the gas fuel, carbon conversion efficiency, stream decomposition and gasification efficiency varied in the range of 586-845 degrees C, 1.42-2.21 N m(3)/kg biomass, 3806-4921 kJ/m(3), 54.44%-85.45%, 37.98%-70.72%, and 36.35%-56.55%, respectively. The experimental results showed that the gasification performance was best with ER being 3.7 and S/B being 0.31 and smaller particle, as well as H(2)-content. And the BMF gasification by air and low temperature stream in the cyclone gasifier with the energy self-sufficiency is reliable.
基于粒径小于250微米的生物质微燃料（BMF），我们实验室考虑了一种用于生物质气化的旋风式气化炉概念。该概念结合并整合了部分氧化、快速热解、气化、焦油裂解以及变换反应，旨在生产高质量的气体。本文通过该气化炉进行了BMF气流气化实验，BMF气化所需能量由气化炉内使用化学计量比不足的空气对BMF进行部分燃烧产生。研究了当量比（ER，0.22 - 0.37）、蒸汽/生物质比（S/B，0.15 - 0.59）以及生物质粒径对BMF气化性能和气化温度的影响。在实验条件下，温度、气体产率、气体燃料的低位发热量、碳转化效率、蒸汽分解率和气化效率分别在586 - 845℃、1.42 - 2.21 N m³/kg生物质、3806 - 4921 kJ/m³、54.44% - 85.45%、37.98% - 70.72%和36.35% - 56.55%的范围内变化。实验结果表明，当量比为0.37、蒸汽/生物质比为0.31且颗粒较小时，气化性能最佳，同时氢气含量也最高。并且，在具有能量自给能力的旋风式气化炉中，通过空气和低温蒸汽进行的BMF气化是可靠的。
