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Material pyrolysis gasification process, system and application

A technology of pyrolysis gasification and materials, which is applied in gasification process, granular/powdered fuel gasification, chemical industry, etc. It can solve the problems of high risk of secondary pollution, low calorific value of gas, etc., and achieve energy utilization efficiency High, high comprehensive calorific value, the effect of increased content

Pending Publication Date: 2020-03-24
SHAANXI BLOWER GROUP
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Problems solved by technology

[0004] In view of the deficiencies in the existing technology, the purpose of the present invention is to provide a process and system for pyrolysis and gasification of municipal solid waste, which mainly solves the problem of the low calorific value of gas for pyrolysis and gasification of municipal solid waste, the risk of secondary pollution and the cost high problem

Method used

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  • Material pyrolysis gasification process, system and application
  • Material pyrolysis gasification process, system and application
  • Material pyrolysis gasification process, system and application

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Embodiment 1

[0030] Follow the above technical solutions, such as Figure 1-3 As shown, this embodiment provides a pyrolysis and gasification system. Taking municipal solid waste as an example, the whole process mainly includes feeding, drying, pyrolysis, gasification, and energy recovery and reuse, and specifically includes the following steps:

[0031] First, the sludge, straw and domestic garbage are mixed and preheated after magnetic separation and other pretreatments. The preheated mixture is charged into the inner cylinder of the pyrolysis furnace; the inner cylinder filled with materials is placed in the pyrolysis furnace In the furnace roof, flue gas inlet and outlet pipes and pyrolysis gas outlet pipes are installed at the same time, and the flue gas inlet and outlet are equipped with switching valves to change the inlet heat source to meet the required heat for drying and pyrolysis respectively. The pyrolysis gas outlet is equipped with Gas flow meter and pressure regulating valve a...

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Abstract

Belonging to the field of solid waste / biomass pyrolysis, the invention provides a material pyrolysis gasification process, a system and application. The system comprises a feeding device, a pyrolysisfurnace, a semicoke crusher and a gasifier. The feeding device is used for feeding a mixed material into a pyrolysis furnace; a pyrolysis gas conveying pipeline is connected to the top of the pyrolysis furnace and used for sending pyrolysis gas out, and heating flue gas is introduced into a jacket for drying and pyrolysis of garbage; and pyrolyzed semicoke is cooled and prepared into semicoke powder, which is then sent into the gasifier through water vapor to react with a gasifying agent so as to generate output gas with a high calorific value. The process provided by the invention can realizeself-sufficiency of energy in the garbage pyrolysis gasification process and generate fuel gas with high comprehensive calorific value and an organic product with high additional value, can achieve coupling with a gas boiler / gas turbine, can meet the consumption for water vapor in the pyrolysis gasification process while fully recovering energy, and has the significant advantages of high gasification efficiency, high comprehensive calorific value of fuel gas, high energy utilization efficiency and the like.

Description

Technical field [0001] The invention relates to solid waste / biomass pyrolysis, in particular to a process and application of pyrolysis and gasification of municipal solid waste. Background technique [0002] Domestic waste treatment technologies include three major technologies: landfill, composting, and heat treatment. Heat treatment technology can be divided into direct incineration and pyrolysis gasification. From the perspective of pollutant emissions, secondary pollution caused by the inadequacy of direct incineration, especially the problem of dioxin emission, seriously restricts the The promotion and application of technology, and the pyrolysis gasification process is carried out in an oxygen-poor or oxygen-deficient atmosphere, which in principle reduces the generation of dioxins, and most of the heavy metals will be dissolved in the pyrolysis and gasification process Ash and slag reduce the discharge of heavy metals. [0003] However, the existing domestic garbage pyroly...

Claims

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Application Information

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IPC IPC(8): C10J3/48C10B57/10C10B53/00
CPCC10J3/485C10B53/00C10B57/10C10J2300/0946C10J2300/0976Y02P20/10
Inventor 康雪胡波张瑾张晨赵万虎杨博苏琦王派凤刘成娟吴飞刘斌汪涛田中锋邵一帆王斌宋倩楠刘伟明王珊珊袁浩
Owner SHAANXI BLOWER GROUP
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