利用热等离子体进行生物质液化技术的研究

利用等离子体射流实现生物质快速热解。在０．５～１．５秒的时间内使粉状生物质的温度由常温上升到７５０～９５０Ｋ，再对蒸汽状态的热解产物进行快速冷却，从而实现生物质的液化．本文介绍了等离子体加热生物质热解实验台的结构和性能。用有代表意义的生物质粉一一玉米秸粉，在高温等离子体加热生物质热解实验台上进行了初步实验，研究了加热速率、停留时间、热解最终温度对生物质液化的影响、对生物质液化产物—一生物油利用色质联用法（ＧＣ—ＭＳ）进行了分析。

Biomass Liqucfaction in a High-Temperature Plasma Jet Flow

Biomass liquefaction was studied in a high-tern perature plasma jet flow. Within 0.5l .5sec., the temperature of pulverized biomass was risen from ambient to 750~ 950K.,at which the biomass was pyrolyzed into vapor. Cooled down immediately in a cooling unit, the vapor was condensed into an oil-like liquid, bio-oil. The paper describes the structure and features of the biomass pyrolysis experimental facility built in our lab, the experiments on pulverized corn stalk, typical biomass, investigations on the effects on tile biomass liquefaction by tile factors of heating rate, the residence time, an,d the ultimate pyrolysis temperature. The ingredients of bio-oil from corn stalk was analyzed by the GC-MS method.