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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: 2009-10-28
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 municipal solid waste is broken into bags, it is biologically stabilized, sorted and screened, and converted into waste-derived fuels. The specific steps are as follows:

[0018] (1) Biological stability of domestic waste: my country's urban domestic waste has the characteristics of high water content and low calorific value, which is mainly due to the large proportion of biomass components with high water content in waste, generally reaching about 60-70% . The method scheme of the invention utilizes the basic principle of biological aerobic composting to stabilize the garbage, so as to achieve the purposes of reducing the volume and water of the garbage and increasing the calorific value. The garbage is piled in the reaction chamber, and the ventilation is forced inward to promote the rapid growth of microorganisms in the garbage pile, and through their metabolism, the fat, protein and other organic substances in the garbage are degraded into small molecules. ...

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Abstract

The invention relates to a preparation method of garbage-derived fuel capable of transforming urban domestic garbage into energy with high added value. The invention utilizes the biomechanical pretreatment process to realize volume reduction, water reduction, weight reduction, and improvement of the calorific value of domestic waste; the sorted organic residue and stabilized biomass organic waste are used as waste-derived fuels, and Cement kiln calcined cement clinker symbiosis, power plant coal-fired power generation symbiosis, central heating coal-fired symbiosis. The invention can make the garbage harmless, efficiently reduce the amount and convert high value-added energy into resources, and has remarkable social, environmental and economic benefits.

Description

technical field [0001] The invention relates to a preparation method of a derived fuel, in particular to a preparation method of a municipal solid waste derived fuel. Background technique [0002] At present, municipal solid waste has become one of the global environmental problems. With the rapid development of our country's economy and the continuous concentration of population to cities, the urban domestic waste continues to increase, and the impact on environmental pollution is also increasing. Therefore, the harmlessness, reduction and recycling of MSW has become a matter of great concern to the government and the public. [0003] The existing garbage disposal methods in my country are mainly landfill, incineration and composting. The landfill method occupies a large area, which is easy to pollute the groundwater and the atmosphere, and the resources cannot be recycled. Although the incineration method has high treatment efficiency, my country's garbage has high mois...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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