Ratio of chemical heat storage material for heat transfer

Abstract

The invention provides a ratio of a chemical heat storage material for heat transfer. The ratio realizes high temperature, large scale, low cost and high efficiency heat storage and is suitable for heat storage and transfer at 10-1500 DEG C. The chemical heat storage material comprises three components such as at least one group of chemical substances capable of reversible reaction, a group of metal particles composed of metal or metal oxide, and a group of microporous particles composed of a microporous material. The above components are mixed into the chemical heat storage material. The metal particles realize heat transfer. The microporous particles realize a reaction of chemical substances so that the chemical reaction is effective and the reaction is an effective contact reaction andthus the chemical heat storage has the practical industrial application value.

Description

technical field [0001] The present invention relates to thermal energy utilization, in particular to materials and formulations that utilize reversible chemical reactions to achieve thermal energy storage. Background technique [0002] The heat accumulator is a device for storing thermal energy. The existing heat accumulators are steam type and liquid heat accumulators. In the field of industrial energy saving, waste heat is recovered and stored, and phase change technology is usually used for heat storage. In the field of low temperature Ice storage technology is used to achieve heat storage; in the field of solar energy, molten salt is used to store heat. Although molten salt can be stored at high temperature, it needs thermal energy to heat it because it needs to be converted from solid to liquid. There are also problems with economy and safety, so the use of molten salt thermal storage is limited. In the field of solar energy, air or other gases are also used for therma...

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Problems solved by technology

The discharge of industrial kilns, steel slag, etc., and the tailings formed by various mine developments have accumulated as above, and there are hidden dangers. How to effectively and economically utilize them will be a very problem that needs to be solved.

The use of reversible chemical reactions for heat storage has become a feasible technology, but it has not been used in industrial production. The main reason is the contradiction between the composition of chemical substances and heat transfer. Many reversible reactions have poor heat transfer performance and cannot be solved. The contradiction between heat transfer and chemical reaction makes it impossible to apply in practice although the principle is possible

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