Solar hydrogen, power and methanol coproduction and energy storage system and application method thereof

Abstract

The invention provides a solar hydrogen, power and methanol coproduction and energy storage system and an application method thereof. The solar hydrogen, power and methanol coproduction and energy storage system comprises a solar chemical chain reaction system, wherein the solar chemical chain reaction system comprises a first solar chemical chain reactor and a second solar chemical chain reactor;methane and raw water are subjected to chemical chain reforming reaction; a chemical chain reaction manner is adopted so that low-consumption and high-efficiency reforming of the methane is realized.According to the solar hydrogen, power and methanol coproduction and energy storage system provided by the invention, a hydrogen gas purification reactor and a hydrogenation reactor are connected andproduced hydrogen gas is transformed into a liquid-state substance in hydrogenation reactor through hydrogenation reaction, so that a product has a liquid state and the product is easy to store and transport in a large scale. According to the solar hydrogen, power and methanol coproduction and energy storage system provided by the invention, the methane and the raw water are transformed into synthetic gas by utilizing high-temperature solar energy and the absorbed solar energy is stored in chemical energy of biomasses, so that the calorific value of the fuel is improved; a synthesis reactionenergy-releasing system and a steam-water system are used for carrying out subsequent transformation, so that coproduction of the hydrogen gas, methanol and electric power is realized and relatively high economic value is created.

Description

Technical field [0001] The invention belongs to the field of solar energy efficient thermochemical energy storage and solar fuel preparation and utilization, and in particular relates to a solar energy hydrogen, electricity and methanol co-production energy storage system and a use method thereof. Background technique [0002] In the context of the rapid rise in global energy demand and the growing problem of greenhouse gas emissions, solar thermal power generation technology has become an important technology to alleviate the energy crisis and improve the ecological environment. It is currently an important period for my country to promote economic transformation, energy revolution, and institutional innovation , Is also a key stage in the upgrading of the solar energy industry. my country’s solar energy industry has a rare development opportunity. The basic tasks are industrial upgrading, cost reduction, expansion of applications, and market-oriented self-sustainable development ...

AI Technical Summary

Problems solved by technology

[0006] And, in traditional steam reforming of methane, heat is generated by burning methane, in this way The efficiency is very low and will cause high carbon emissions. The ratio of water vapor and methane is as high as 3-5:1, resulting in a large amount of energy being used for steam generation, while the conversion rate of water vapor is very low, resulting in a large amount of energy being wasted , and the cost of carbon dioxide separation in the subsequent process is high

Moreover, both hydrogen and syngas produced by solar methane reforming energy storage technology are gases, which are difficult to store and transport on a large scale

Images