Double-tray chemical-looping hydrogen production device and method for treating sludge biomass solid waste

Abstract

The invention relates to a double-tray chemical looping hydrogen production device and method for treating sludge biomass solid waste. The device comprises a tower body, an upper-layer tower plate, a lower-layer tower plate, a low-temperature plasma generator, a cyclone separator and a gas separator, the interior of the tower body is divided into an upper-layer chemical-looping hydrogen production reaction zone and a lower-layer low-temperature plasma reaction zone, and an oxygen carrier is laid on an upper-layer tower plate; a solid waste fuel inlet is formed in the upper part of the low-temperature plasma reaction area; and a working gas inlet is formed in one side of an air inlet and ash discharge chamber under the lower-layer tower plate. Based on the principle of reduction, harmlessness and recycling in the solid waste treatment process of sludge, biomass and the like, solid waste fuel is pyrolyzed in combination with a low-temperature plasma technology, and the solid waste fuel and the oxygen carrier are arranged in a layered manner by arranging double trays in the same tower body, so that the influence of ash content on the activity of the oxygen carrier is avoided, and a new thought is opened up for efficient conversion of high-ash biomass solid wastes.

Description

technical field [0001] The invention relates to the technical field of utilization of solid waste resources, in particular to a double-tray chemical chain hydrogen production device and method for treating sludge biomass solid waste. Background technique [0002] With the rapid development of my country's urbanization and the increasingly stringent laws and regulations related to solid waste disposal, seeking efficient treatment methods for solid waste and recycling the energy in them have become the key research directions of solid waste disposal technology. Sludge is a by-product of water treatment. At present, the main treatment methods are sanitary landfill, agricultural composting and incineration. However, the side effects of these treatments include land pollution, accumulation of heavy metals such as N and P, and harmful polluting gases (such as SO x , NO x and gases such as dioxins). The annual sludge production in China is large, and the economic cost of traditi...

AI Technical Summary

Problems solved by technology

Due to the high ash content of the sludge (up to about 50%), it usually reacts with the active components in the oxygen carrier to deactivate part of the oxygen carrier and reduce the use efficiency of the oxygen carrier. Therefore, the ash content becomes One of the potential factors limiting the development of sludge chemical chain technology

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