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Design and Study on ZKR-200 Rotating Cone Pyrolysis Liquefaction Reactor for Biomass

Author: QiaoGuoChao
Tutor: WangShuYang
School: Northeast Forestry University
Course: Mechanical Design and Theory
Keywords: Biomass Flash pyrolysis Liquefaction Bio-oil Rotating cone
CLC: Q819
Type: Master's thesis
Year: 2006
Downloads: 159
Quote: 6
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Abstract


The energy is the foundation of human survival and the development, Petrochemical fuel has already been the most important energy source of mankind’s for several thousand years. But, at present this was once considered to be the inexhaustible energy treasure house also faces drying up, already verified the petroleum only to be possible to mine for more than 40 years, the natural gas and the coal then may supply separately 67 year and 164 years. The energy crisis have already threatened humanity’s survival seriously, sought and develops the new substitution energy already to be imminent. Bio-energy is a kind of energy with pure, highly effective, the huge new, it is the best substitute for the fuel, it has an effect to alleviate the world energy crisis and the environmental pollution. The various countries already gathered the vision at the biomass development and use.This topic is under such background and take the country "863" and "948" high tech scientific research item as a backing, comprehensively and systematically collected domestic and foreign research materials of flash pyrolysis and liquefaction technology for biomass and carried on deeply study and reach. Under understood and grasped the base principle of biomass pyrolysis and liquefaction I put more attention to study the design thought and method of rotating cone flash pyrolysis and liquefaction main reactor. Through carefully study and research designing a 200 kg / h small prototype, achieved the goal that promoting the technology of pyrolysis and liquefaction for biomass. This article narrated emphatically the design method of the main reactor, including the computing method of the reactor productivity;Using the t-ω image of the time t of solid staying in rotating cone and angle speed ω of rotating cone to explain the effect to biomass pyrolysis and liquefaction process of cone angle. After analyze material stress, using mechanics principle determined the tooth radius of tooth type rotating cone;Structural design and intensity examination of rotating cone;the structural design, supporting way, condensation, seal, intensity examination of rotating axle. Then using the corn stalk, the beanstalk, the white birch, the Oakwood as the experimental raw material to carry on experiment to ZKR-200 rotating cone flash pyrolysis and liquefaction unit for biomass and test the processing ability of the main reactor. Compare with the theoretical calculation result, there is no great deference. Finally carried on the analysis to the experiment data calculated the conversion rate of biomass.The rotating cone flash pyrolysis and liquefaction reactor for biomass is a new unit that can change the little biomass grain into liquid bio-mass. It can produce a kind purely new substituting energy, this technology is important to solve the world energy and environment double gravity.

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