The impact of wind-solar capacity ratio on the technical and
The coal chemical industry requires a stable and continuous hydrogen supply, yet it predominantly depends on gray hydrogen derived from fossil fuels like natural gas and coal cracking,
The integration of coal chemical industries with green hydrogen production enables the organic combination of coal mining, coal chemicals, and renewable electricity, marking a critical pathway for the decarbonization of the coal chemical sector.
Coal-fired power generation is one of the main methods of electricity production around the world. However, this process suffers from large amounts of GHG emissions. Combining CO 2 captured from its flue gas with green hydrogen for producing methanol is considered a promising energy pathway.
This study aims to fill this gap by providing a detailed comparative analysis of the life cycle assessment and ecological footprints of SPPG and coal power generation. The significance of this research lies in its potential to inform policymakers and stakeholders about the environmental implications of energy choices.
This normalization allows for an immediate visual grasp of how each system performs relative to the baseline coal power generation across multiple environmental criteria. The SPPG system, a renewable energy source, generally outperforms coal power in environmental impact, with a GWP that is 17.78% lower.
The coal chemical industry requires a stable and continuous hydrogen supply, yet it predominantly depends on gray hydrogen derived from fossil fuels like natural gas and coal cracking,
This study conducts a comprehensive comparison of the environmental impacts of solar photovoltaic power generation (SPPG) and coal power, employing both life cycle assessment and
Given the extensive land requirements for dedicated wind and solar generation, the renewablization of coal-based chemical plants is feasible primarily in remote coal-mining regions with
On the other hand, coal chemical production requires a highly continuous and stable hydrogen supply, yet the inherent intermittency and volatility of wind and solar resources result in
This study establishes a green electricity–hydrogen coupled coal chemical system and proposes a robust optimization model incorporating uncertainties in wind and solar power. First, a
We allo-cate GHG emission changes in coal production, grid electricity gen-eration, and solar power facility manufacturing to provincial regions based on provincial production of coal,
Highlights • A solar-coal thermochemical hybrid power generation system is proposed. • Net power generation efficiency and exergy efficiency can reach 53.06 % and 52.24 %. • The
Coal-fired power generation is one of the main methods of electricity production around the world. However, this process suffers from large amounts of GHG emissions. Combining CO2
The impact of wind-solar capacity ratio on the technical and economic feasibility of a coal chemical coupled off-grid/weakly grid-connected green hydrogen production system Shunliang Ding,
Moreover, it summarizes the major forms, technical characteristics, and application status of the integrated development from the aspects of four scenarios: integration of coal mining,
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