Device for preparing synthesis gas by utilizing municipal solid waste and landfill gas and method

Abstract

The invention discloses a device for preparing synthesis gas by utilizing municipal solid waste and landfill gas and a method; the device comprises a landfill gas separating device, an upper suction-type fixed bed and an entrained flow bed; the landfill gas separating device is communicated with a landfill gas pipeline, and an CO2 output port and a CH4 output port are arranged on the landfill gasseparating device; a garbage input port, a gasification agent inlet, a gas output outlet and an ash residue are arranged on the upper suction-type fixed bed, and a gas inlet, a gas outlet and a cooling chamber arranged below the entrained flow bed are arranged on the entrained flow bed; the CO2 output port and a O2 output port are communicated with the gasification agent inlet, a gaseous product output and the CH4 output port are communicated with the gas inlet of the entrained flow bed, the gas outlet of the entrained flow bed is communicated with the cooling chamber, the bottom part of the cooling chamber is provided with a cooling tank, a cooling liquid nozzle is arranged at the position of the gas outlet in the cooling chamber, and a synthesis gas outlet is arranged on the cooling chamber. The invention takes reclamation of the municipal solid waste and landfill gas into consideration, and is environmental protection, energy saving and has high resource utilization rate.

Description

technical field [0001] The invention relates to a device and a method for producing synthetic gas by utilizing municipal domestic garbage and landfill gas. Background technique [0002] At present, the total amount of urban domestic waste in my country is 150 million tons, and the annual growth rate is 8-10%. It is difficult to implement sorting and recycling, the rate of garbage harmless treatment is still low, landfill treatment technology is the main technology, resource utilization rate is low, and environmental pollution is serious. There are more than 1,000 landfills in my country, most of which do not consider the recycling of landfill gas, which pollutes the environment and wastes resources. [0003] Sustainable development requires emphasizing garbage as a "resource" and emphasizing "conservation of energy and raw materials", encouraging the prevention, reuse, recovery of raw materials and heat energy of garbage as an option, and finally only using stabilized garbag...

AI Technical Summary

Problems solved by technology

[0007] As we all know, because in the traditional waste treatment process, the waste is landfilled, the above-mentioned technologies do not consider the treatment and recycling of landfill waste.

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