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Study of "Solid -air - Liquid" Cogeneration and Product Application in Biomass Energy Conversion Process

Author: ZhangZhongHe
Tutor: YouXiFeng;LiuShengYong
School: Henan Agricultural University
Course: Agricultural Biological Environmental and Energy Engineering
Keywords: "carbon - air - oil - liquid" cogeneration Biomass energy process Product application
CLC: S216
Type: Master's thesis
Year: 2011
Downloads: 29
Quote: 0
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Abstract


The issue of energy supply structure balance and national energy safety in China promotes the development of a number of new renewable energy, such as biomass energy. The development of Biomass energy in China can be largely alleviate the tensions of North coal south shipped and gingral. It can also reduce our dependence on foreign oil and guarantee our country’s national energy security.Around the world, the application technology of biomass energy mainly includes biogas utilization technology, biogas biomass density molding technology, biomass burning power generation technology, biological diesel technology, fuel ethanol technology, biomass gasification power generation technology, cellulose ethanol production, biomass liquefied technology and so forth. Among them,some in industrialized production stage, some in demonstration production stage and some in laboratory study phase, however, they all have extremely strong vitality and excellent development prospect.Biomass energy conversion process of "Carbon - air - oil - liquid" translate Biomass energy into Biological carbon, biological gas, biological tar and wooden vinegar by using Biomass pyrolytic technology and pyrolysis gas recovery separation technology in the same line. All output content recycling without waste emissions, which realizes the purposes of clean and effective development and utilization of biomass energy. Biological carbon is almost pure carbon and rich in pore, which can replenish the soil with organic matter content and preserve moisture and nutrition effectively. Meanwhile soil fertility can be improved and the emissions of greenhouse gases such as nitrogen dioxide and methane can be reduced, which help to slow global warming. Around the world, there are wide-ranging interests in biological carbon. After purification treatment, bio-gas contains tar content below10mg every cubic meter, which is lower than the national standard requirements of 50mg every cubic meter. In using process they won’t cause congestion, pollution. High combustion calorific value, clean and pollution-free can be used for cooking, power generation and industrial gas boiler. Biological tar which is black semiliquids shape, smoke, corrosive, is a kind of organic compounds including hydrocarbons, acids, phenolic. After atomization, biological tar has high calorific value and good combustion characteristic as green fuel substitute for fuel equipment. After processing, Miscellaneous phenolic oil, fight polymerization retarder, flotation foaming agent, biological asphalt were produced. It also can used in medicine, synthetic rubber, metallurgy, disinfectant and preservative, etc. The main component of wood vinegar fluid is organic acid and phenolic substances. Among them, organic acetic acid account for 47%, which has strong sterilization at high concentrations and antibacterial function and can inhibit bacteria proliferate at low concentrations. Wood vinegar in organic agricultural cultivation has been widely application to avoid pests in developed countries.This paper describes the development situation of biomass energy and puts forward name of "carbon - air - oil - liquid" of biomass energy conversion process. Solutions and ideas were advanced aiming at the problems in the production practice process. The main research contents summarized as follows:(1) Influence of temperature, material properties, catalyst, retention time, pressure and heating rate, etc to biomass cracking reaction were studied by referring to some relevant literature material.(2) To draw a general conclusion from the study of "carbon - air - oil - liquid" conversion process type that we should choose appropriate technology to develop biomass energy through combining the characteristics of local biomass materials with target product.(3) The four products component of biological carbon, biological gas, wood tar and wooden vinegar were assayed and analysed in relation to physicochemical properties of products for development and application.Rich variety productions were yielded by "carbon - air - oil - liquid" of biomass energy conversion process, which has broad prospects for development. It can not only solve the problem of rural clean energy supply but also can provide raw materials for other industrial production. China is not only a country of large population,but also a country of rapid economic development.There are two pressures set before us in the 21st century:economic growth and environmental protect .Therefore,it is significance for the development of national economic and environmental protection by establish a sustainable energy system.Such as change the way of energy production, the patterns of consumption,develop and use biomass energy and so forth.Biomass energy conversion process of "Solid-air-liquid" co-generation can produce rich products that not only solve the supply problem of rural clean energy,but also provide raw material for other industrial production,which has a bright prospect of development.

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CLC: > Agricultural Sciences > Agricultural Engineering > Agricultural power,rural energy > Application of bio-energy ( biomass)
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