Regeneration and filtration integrated system for high-temperature solar thermal chemical tail gas treatment

Abstract

The invention relates to a regeneration and filtration integrated system for high-temperature solar thermal chemical tail gas treatment. The integrated system comprises a primary filtration and regeneration subsystem, a secondary filtration and regeneration subsystem composed of two heat storage tanks in parallel, a backflushing filter and connecting pipeline valves, wherein insulation layers wrapthe heat storage tanks, and bottom contraction sections are provided with ash discharge ports. The system involved in the invention has two stages of filtration and two stages of regeneration; the staged regeneration of reaction air inlet between the stages can be realized through valve switching and the intermediate backflushing filter; coarse filtration, fine filtration and heat storage and regeneration in the stages are layered in order; the secondary filtration and regeneration subsystem which bears a main heat-generating function is provided with filtration performance, heat exchange strength, sealing effect and piezoresistive loss by means of the coupling of fixed beds and fluidized beds. An operation mode of the system comprises primary regeneration during daytime with non-fluctuating solar irradiation, two stages of regeneration during daytime with fluctuating solar irradiation, auxiliary heat regeneration and release before system start-up, and system ash removal. The systemhas the advantages of high efficiency and wide application range, and realizes gradient utilization of gas production waste heat.

Description

technical field [0001] The invention relates to a heat recovery and filtration integrated system for high-temperature solar thermochemical tail gas treatment. Background technique [0002] The solar high-temperature thermochemical method converts solar energy into chemical energy by converging solar energy to generate high temperature to promote the thermochemical process, which can produce high-grade fuel in a clean and energy-saving manner, and facilitate transportation and storage, realizing the storage of solar energy across time and space And storage scheduling, overcome the problems of low energy density, poor continuity, and uneven distribution that exist in the direct utilization of solar energy. [0003] For example, dry solar gasification technology utilizes high-power concentrated solar energy to generate a high temperature above 1000°C, so that carbon-containing particles and carbon dioxide react in a solar reactor to produce carbon monoxide, which is more carbon...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the shortcomings of the filtration and heat storage systems in the existing high-temperature solar thermochemical fuel production, and propose a solution for the solar thermochemical system to deal with complex radiation fluctuation heat storage, high-temperature gas production heat recovery and gas-solid separation. Thermal filtration integrated system, the present invention has high filtration and heat storage and recovery capacity, low cost and stable performance

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