比较了生物质集中供气技术与户用生物质气化技术。通过炉型分析，提出了上吸式生物质气化炉是农村户用气化炉型的理想选择；同时，分析了目前户用生物质气化炉存在的问题，认为催化裂解是户用气化炉焦油净化的有效途径。在分析小型气化炉焦油净化技术的基础上，开发了一种设置二次催化裂解与分离回收装置的新型气化炉。该炉能利用燃气显热，有效回收液态焦油和冷凝水，具有焦油裂解转化效果好、气化炉效率和燃气热值提高等优点。%Comparison of biomass centralized gas supply and household gasification technology .By the characteristic anal-ysis of furnace type ,downdraft gasifier is in the rural the use of the ideal type of furnace .Analysis of problems in the cur-rently used household gasification furnace .That is tar effective purification method for catalytic cracking of tar .Based on the analysis of the existing small gasification furnace purification method , puts forward a two catalytic cracking and sepa-ration device of the gasification furnace .It can use gas sensible heat , recovery of liquid tar and condensed water .It has advantages of high tar cracking efficiency , the gasification efficiency and high heat value of fuel gas .
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