| Blast furnace slag is the main production in steelmaking and ironmaking process,each production of1tons pig iron to by-product0.3to0.6tons slag, the temperatureup to1500℃and rich in calories, per-ton of slag contains about （1.26—1.88）×106kJ sensible heat. Now the biomass utilization technology has matured, but inprocess, high production cost and high energy consumption is the main problemwhich restricts the production and application of biomass energy industrialization.The heat which blast furnace slag has can offer free source for biomass energyproduction. Based on this, this paper discusses the utilization of waste heat of hightemperature slag to pyrolysis of biomass.This paper research on the heat transfer between particles, built heat transfermodel and comprehensive a plurality of heat transfer model to formation the total heattransfer model. Research on reaction kinetics of blast furnace slag pyrolysisingbiomass. To do the experiment of pyrolysising biomass which use blast furnace slagas heat carrier, the results show that: bio-oil production through pyrolisising differentkinds of biomass has great difference in the physical and chemical properties, densityof straw-oil is smaller than Korean pine-oil and pH of straw-oil is bigger thanpine-oil. Rising blast furnace slag temperature make production efficiency of bio-oilfirst increased and then decreased. The smaller blast furnace slag size, the higherbio-oil production efficiency and the smaller biomass size, the higher bio-oilproduction efficiency. Bio-oil production efficiency has the highest rate when speedof rotating reactor is7Hz. Blast furnace slag containingCaO—MgO which significantly improve the content ofH2and CO in gasproducts of pyrolysising biomass. |
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