| The technology of biomass fast pyrolysis is one of the most important technologies in the fields of renewable Energy. The fluidized bed recator which is one of the advanced biomass pyrolysis reactor is widely used in the world. As a high-quality biomass, bamboo shoot shell high contains cellulose and lignin. Bio-oil from fast pyrolysis of bamboo shoot shell in the fluidized bed takes on important environmental, economic and social benefits. This paper relys on projects"the technologies of saw wood powder pyrolysis for nonpollution fuel and chemicals"which is the national"948"technology projects in the area of energy. In this paper, based on characteristics of fluidized bed and bamboo shoot shell, the reactor of biomass fast pyrolysis were designed and manufactured. Bio-oils from fast pyrolysis of bamboo shoot shell were researched in the reactor. By using FTIR and GC-MS, the bio-oils were anaylzed. The detailed studies are as follows:1. The experimental equipment of biomass fast pyrolysis in the fluidized bed was designed and manufactured. Design method and calculation procession of screwy feed-in implement which holds different diameters and volution distance were used in the equipment. From the treatments of bamboo shoot shell, mass balance and heat balance were carried out and the structures of fluidzied bed reactor were calculated. Cyclone separator was designed rightly by analyzing bio-oil properties and working principles of cyclone separator. In order to quenche, the design ideas of condensation implement which contains two steps cooling were put forward.2. By analysis TG, FTIR and kinetic analysis of pyrolyisi process from the mao bamboo shoot shell, reactive activation energy and kinetic parameters of the thermal decomposition process were achieved. The experimental results showed that the spectra of bamboo shoot shell infrared absorption was mainly made up of absorption bands of alkyl, carbon-group, carbohydrate and benzene-loop and so on. Bamboo shoot shell pyrolysis process (TG curve)was divided into four phases, such as dehydration, pre-pyrolysis, pyrolysis (severe lossing of weight), carbonization (slow lossing of weight). Reaction stage mainly concentrated in about 250～650℃. The speed of bamboo shell pyrolysis depended on the effect factors of raw materials size and heating rate. By using Doyle method, activation energy of bamboo shoot shell in different heating rates which were 120～160 kJ·mol-1 was calculated. By using the kinetic compensative, the corresponding kinetic parameters were obtained and the pyrolysis kinetic equation of bamboo shell was determined. It was considered that the reaction mechanism could be better described by one grade reaction model.3. Pyrolysis experiment with the shoot shell was carried out in the self-designed fluidized bed in which quartz sand was used as the fluidizing medium. The effects of bio-oil yields on pyrolysis temperature, material size, feeding rate, retention time and different additives were studied. The best pyrolysis process conditions of fast pyrolysis were explored. The results showed that additiveⅣwas one of the best additives, pyrolysis temperature would descend about 100℃with the additiveⅣ. Material size below 1mm was adapt to the equipment. As the feeding speed 50 g·min-1, retention time below 1 s, the concentration of additiveⅣ0.4%, bio-oil maximum yields could be 66.7%.4. By using FTIR and GC-MS, the major compositions of bio-oils were analyzed, then elements composition, chemical and physical properties of the bio-oil were measured. The experimental results showed that the performance of bio-oils was a little different from boiler fuels, mainly lying in the calorific value and oxygen content. If bio-oil will be used as fuels, it need to be refined. According to the results of FTIR and GC-MS analysis, the bio-oil composition was very complex. There were 38 kinds of recognizable compounds in the bio-oils from the bamboo shell which were added additiveⅣwhile pyrolysising. The bio-oils mainly contained organic acids, hydrocarbons, hydroxybenzene, phenols, benzene compounds and so on. Due to relatively high content of hydroxybenzene ramification which was up to 55%, the bio-oils could be used to produce the adhesive system.
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