Supercritical water treatment wet garbage poly-generation comprehensive utilization system and treatment process

Abstract

The invention relates to a supercritical water treatment wet garbage poly-generation comprehensive utilization system and a treatment process, and the system comprises a liquid fertilizer output unit which is used for converting liquid in wet garbage into high-quality liquid fertilizer and comprises a wet garbage wet liquid supply branch and a supercritical water supply branch; the commercial oil output unit is used for converting solids in the wet garbage into commercial oil and comprises an oil phase supply branch and a solid phase supply branch; the wet garbage wet liquid supply branch and the supercritical water supply branch are overlapped on the high-temperature steam shower device (2) and the oxidation reactor (24); and the liquid fertilizer output unit further comprises a leachate collector (6). Compared with the prior art, the supercritical water, the wet garbage solid-phase dry distillation furnace, the gas combustion furnace, the semi-coke combustion furnace and the first-stage high-pressure spiral heat exchanger are organically combined, and scientific, efficient and comprehensive utilization of wet garbage waste is achieved.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of biomass resources, in particular to a supercritical water treatment wet garbage polygeneration comprehensive utilization system and a treatment process. Background technique [0002] With the development of our country's economy and the improvement of people's living standards, people are increasingly aware of the importance of protecting the environment and non-renewable energy. At the same time, urban organic waste has also increased with the improvement of people's living standards. Since 1979, my country's urban waste has grown at an average rate of 8.98% per year. The ever-increasing domestic waste has become a major problem that plagues economic development and environmental governance. Therefore, how to turn waste into treasure and realize resource recycling of waste is an important topic in modern urban management. [0003] Patent CN 206828339U discloses a device for...

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Problems solved by technology

[0003] Patent CN 206828339U discloses a device for treating municipal sludge with supercritical water. After the device treats municipal sludge, it reduces the pollution of garbage, fully saves energy and reduces consumption, but the process is relatively complicated and does not produce a lot of effective utilization. Product; Patent CN 105295982A discloses a comprehensive utilization system and process for the polygeneration of oil shale associated biomass. The system mixes biomass with oil shale to achieve comprehensive utilization of oil shale, but secondary cracking may occur , thereby reducing the quality and output of pyrolysis oil

In addition, the above-mentioned patents all use solid waste and gas circulation to realize heat recovery and reuse, and there is no report on the comprehensive utilization of waste gas and semi-coke

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