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...

Examples

Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] figure 1 It is a schematic diagram of the structure and work flow of the regenerative filtration integrated system in Example 1 of the present invention. Such as figure 1 As shown, the heat recovery and filtration integrated system includes a primary filter heat recovery subsystem, a secondary filter heat recovery subsystem, a blowback filter, and pipelines. The primary filter heat recovery subsystem, the secondary filter heat recovery subsystem and the blowback filter are connected in sequence through pipelines.

[0038] The primary filtration heat recovery subsystem includes at least a fourth heat storage tank 4 wrapped with an insulation layer, the tank body is cylindrical, and the bottom and top of the tank body are shrinkage sections that play the role of diverting and collecting filter particles. The small mouth end of the botto...

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...

Examples

Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] figure 1 It is a schematic diagram of the structure and work flow of the regenerative filtration integrated system in Example 1 of the present invention. Such as figure 1 As shown, the heat recovery and filtration integrated system includes a primary filter heat recovery subsystem, a secondary filter heat recovery subsystem, a blowback filter, and pipelines. The primary filter heat recovery subsystem, the secondary filter heat recovery subsystem and the blowback filter are connected in sequence through pipelines.

[0038] The primary filtration heat recovery subsystem includes at least a fourth heat storage tank 4 wrapped with an insulation layer, the tank body is cylindrical, and the bottom and top of the tank body are shrinkage sections that play the role of diverting and collecting filter particles. The small mouth end of the botto...

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