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Composite material used for biogas combustion heat storage and preparation method thereof

A composite material, biogas combustion technology, applied in heat exchange materials, chemical instruments and methods, energy input, etc., can solve the problems of flash explosion, difficulty in compression, pipeline leakage, etc., and achieve strong heat storage capacity and simple preparation. , the effect of low cost

Inactive Publication Date: 2013-05-22
栾龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No matter what method and technology is used to generate combustible gas, and no matter how large the scale of biogas production is, the past biogas storage is to directly connect the treated biogas to a special gas storage tank through pipelines, because biogas Gas compression is more difficult, so such storage facilities are generally relatively large in size, the tank itself has a huge risk of inflammability and explosion, and the entire pipeline also has the risk of leakage and flash explosion. The management of system operation safety Difficulty and investment will be greatly increased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The preparation method of the composite material used for biogas combustion heat storage is realized by the following steps:

[0014] Step 1: completely dissolving anhydrous calcium chloride to obtain a calcium chloride saturated solution;

[0015] Step 2: Put copper foam with a particle diameter of 1mm into the saturated calcium chloride solution, sieve the immersed copper foam and calcium chloride solution, leave the foam copper, and heat to evaporate the water;

[0016] Step 3: Mix evaporated copper foam and alumina to obtain a billet of heat storage material, wherein the volume fraction of copper foam is 10%, and the volume fraction of alumina is 90%, and the billet is placed in a high-temperature electric oven at 400°C for continuous Bake for 2 hours to remove water, and the processed material is naturally cooled in a drying oven to obtain the target product.

Embodiment 2

[0018] A method for preparing a composite material for biogas combustion heat storage, characterized in that:

[0019] There are the following steps to achieve:

[0020] Step 1: completely dissolving anhydrous calcium chloride to obtain a calcium chloride saturated solution;

[0021] Step 2: Put copper foam with a particle diameter of 3 mm into the saturated calcium chloride solution, sieve the immersed copper foam and calcium chloride solution, leave foam copper or aluminum foam, and heat to evaporate the water;

[0022] Step 3: Mix evaporated copper foam and zeolite to obtain a blank of heat storage material, wherein the volume fraction of copper foam is 40%, and the volume fraction of zeolite is 60%, and the blank is placed in a high-temperature electric oven at 400°C for continuous baking Carry out water removal treatment for 2 hours, and the treated material is placed in a drying box to cool naturally to obtain the target product.

Embodiment 3

[0024] The preparation method of the composite material used for biogas combustion heat storage is realized by the following steps:

[0025] Step 1: completely dissolving anhydrous magnesium chloride to obtain a saturated solution of magnesium chloride;

[0026] Step 2: put aluminum foam with a sheet diameter of 5 mm into a saturated magnesium chloride solution, sieve the immersed aluminum foam and magnesium chloride solution, leave foam aluminum, and heat to evaporate water;

[0027] Step 3: Mix evaporated aluminum foam and quicklime to obtain a billet of heat storage material, wherein the volume fraction of aluminum foam is 70%, and the volume fraction of quicklime is 30%, and put the billet into a high-temperature electric oven at 400°C for continuous baking Carry out water removal treatment for 2 hours, and the treated material is placed in a drying box to cool naturally to obtain the target product.

[0028] The average heat storage capacity of the heat storage material ...

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Abstract

The invention belongs to the technical field of biogas energy comprehensive utilization and particularly relates to a regenerative composite material used for biogas combustion and a preparation method thereof. In the prior art, biogas is stored with a special biogas storage tank, due to the large difficulty in compression of the biogas, the storage facilities are generally relatively large in size, the tank has high combustible and explosive risk, and the management difficulty and investment for the system safety operation are greatly increased. The regenerative composite material provided by the invention is prepared by mixing zeolite, foamed metal and calcium chloride according to a certain ratio, and can collect and utilize the heat energy generated during biogas combustion by utilizing the latent heat storage properties and thermal conductivity properties of different materials. The regenerative composite material provided by the invention does not store and utilize biogas but collects heat energy of biogas by the biogas combustion, and has the advantages of high safety, low cost, simple preparation process and strong regenerative capability.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of biogas energy, and in particular relates to a composite material used for biogas combustion and heat storage and a preparation method thereof. Background technique [0002] Biogas is a combustible gas with low calorific value. Due to the development of technology and the demand for new energy sources, biogas has become an increasingly widespread new energy source. No matter what method and technology is used to generate combustible gas, and no matter how large the scale of biogas production is, the past biogas storage is to directly connect the treated biogas to a special gas storage tank through pipelines, because biogas Gas compression is more difficult, so such storage facilities are generally relatively large in size, the tank itself has a huge risk of inflammability and explosion, and the entire pipeline also has the risk of leakage and flash explosion. The management of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/14
CPCY02P20/133
Inventor 栾龙
Owner 栾龙