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Process for preparing fuel derived from urban domestic garbage

A technology for municipal solid waste and waste-derived fuel, which is applied in the fields of biofuels, fuels, solid fuels, etc., and can solve the problems of high water content and low calorific value of biomass components, effective separation of incombustible components, and failure to use them. , to achieve the effects of less environmental pollution, high energy conversion efficiency and significant social benefits

Inactive Publication Date: 2007-04-25
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this method is that domestic waste has high moisture content and high organic components, making it difficult to effectively sort combustible components; at the same time, biomass components have not been utilized due to high moisture content and low calorific value.

Method used

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Embodiment Construction

[0017] After the bags are broken, the municipal solid waste is bio-stabilized, sorted and sieved to be converted into refuse-derived fuel. The specific steps are as follows:

[0018] (1) Biological stability of domestic waste: my country's municipal domestic waste has the characteristics of high moisture content and low calorific value. This is mainly due to the relatively large proportion of biomass components with high moisture content in the waste, generally reaching about 60-70% . The method scheme of the present invention uses the basic principle of biological aerobic composting to stabilize the garbage, and achieves the purpose of reducing the volume of the garbage, reducing the water and increasing the heating value. Place the garbage in the reaction chamber and forcefully ventilate it inward to promote the rapid growth of microorganisms in the garbage dump, and through their metabolism, the fat, protein and other organic substances in the garbage are degraded into small mo...

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Abstract

The invention relates to the preparing method of the rubbish derived fuel which can make the city life rubbish be transformed with high added value. The invention adopts biological and mechanical treatment to decrease the volume, decrease the water content, reduce the weight and increase the heating power of the rubbish. The separated organic residue and stabilized organic biomass serve as the rubbish derived fuel which coexists with cement processing material burning in cement factory, electricity generating in power station and coal burning in concentrated heat supply. The invention can make the rubbish less harmful, transform the rubbish with high added value as well as decrease the bulk of the rubbish so the invention has obvious social, environmental and economic returns.

Description

Technical field [0001] The invention relates to a method for preparing derived fuel, in particular to a method for preparing fuel derived from municipal solid waste. Background technique [0002] At present, municipal solid waste has become one of the global environmental problems. With the rapid development of my country's economy and the continuous concentration of population in cities, urban domestic waste continues to grow, and its impact on environmental pollution is also increasing. Therefore, the harmlessness, reduction and resource utilization of municipal solid waste have become a matter of great concern to the government and the public. [0003] The existing waste disposal methods in my country are mainly landfill, incineration and composting. The landfill method occupies a large area and easily pollutes the groundwater and atmosphere, and the resources cannot be recycled. Although the incineration method has high treatment efficiency, my country’s garbage has a high mo...

Claims

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Application Information

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IPC IPC(8): C10L5/46
CPCY02E50/30Y02E50/10
Inventor 钱光人张沛君洪瑞金
Owner SHANGHAI UNIV
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