生物质微波热解制气研究进展

 生物质微波热解具有反应速率快、易于控制、安全无污染等优点，但在制气方面存在产率不高、热值较低等问题，严重制约了生物质能的全面与高效利用。简述了微波热解原理，梳理了微波辅助热解技术在提升产气产率及热值、高效脱除焦油、抑制污染物生成和降低系统能耗4个方面的国内外最新研究现状，评述了当前实验用焦油模型化合物存在的局限性以及焦油在转化与脱除过程中所面临的问题，并给出了科学合理的建议。

Progress in microwave pyrolysis of biomass for gas production

As one of the leading technologies in the field of the biomass thermochemical treatment, the biomass microwave pyrolysis enjoys the advantages of fast reaction rate, easy control, safety and no pollution. However, there are some problems in the gas production, such as low yield and low calorific value, which seriously restricts the comprehensive and efficient utilization of the biomass energy. In this paper, the principle of the microwave-assisted pyrolysis is introduced. From the latest researches at home and abroad, four aspects of the microwave-assisted pyrolysis technology are highlighted: improving the gas production yield and the calorific value, effectively removing the tar, inhibiting the pollutant generation and reducing the system energy consumption. On this basis, the limitations of the tar model compounds and the problems in the tar conversion and removal are reviewed in detail. In view of the above problems, some scientific and reasonable suggestions are given. Combined with the development trend of the microwave pyrolysis gas production technology, the main development directions based on the future industrial applications such as accelerating the transformation from the theoretical and experimental research to the industrial application research are put forward.