Firstly based on the endowment of coal mine resources and geological characteristics the combination of power-to-gas and gas storage and utilization is used to construct a multi-resource circular util

This framework involves the conversion of excess renewable energy into hydrogen through electrolysis, which is then combined with carbon dioxide from the coal mine to produce synthetic natural gas (SNG) through the Sabatier process. The SNG is stored and transported through existing gas infrastructure, and can be used for power generation, heating, and transportation.

In addition, the framework includes the utilization of waste heat from the power generation process for coal mine heating and the recovery of methane from coal seams for further gas production. This circular utilization approach not only reduces greenhouse gas emissions and promotes energy transition, but also improves the economic value of coal mines and enhances their sustainability.

Furthermore, the implementation of this framework requires close collaboration between different stakeholders, including coal mine operators, renewable energy developers, gas companies, and government agencies. It also involves the development of appropriate regulatory and financial incentives to encourage investment and innovation.

Overall, the multi-resource circular utilization framework for coal mines containing gas-electricity blending has the potential to transform coal mines into sustainable energy hubs and contribute to the transition towards a low-carbon and circular economy.