低排放煤炭技术助力零碳亚洲未来（英）-218页_9mb

Summary of "The Role of Low Emission Coal Technologies in a Net Zero Asian Future"

Core Content

This report, authored by Greg Kelsall and Paul Baruya for the International Energy Agency's (IEA) Coal Industry Advisory Board (CIAB), explores the role of low emission coal technologies (LECT) in achieving net zero emissions (NZE) in Asia. It emphasizes that while coal is often seen as incompatible with NZE, it remains a critical component of the energy mix in many Asian countries due to its affordability and availability. The report outlines the importance of LECT in reducing emissions and supporting sustainable development in the region.

Main Viewpoints

• Coal's Continued Relevance: Coal will remain a vital energy source in Asia for decades, especially for electricity generation and industries like steel and cement that are hard to decarbonize.
• Need for Low Emission Technologies: To meet NZE goals, Asian countries must adopt low emission coal technologies, including carbon capture, utilization, and storage (CCUS), cofiring with low-carbon fuels, and high efficiency, low emissions (HELE) power generation.
• CCUS as a Key Technology: CCUS is essential for decarbonizing coal-based industries. It is already operational in several locations, with the potential for cost reductions through scaling and learning by doing.
• Cofiring as a Transitional Strategy: Cofiring coal with biomass, hydrogen, and ammonia can significantly reduce emissions and is a viable intermediate step towards NZE.
• HELE Power Plants: High-efficiency, low-emission (HELE) ultrasupercritical (USC) power plants are recommended for new coal projects, as they are more compatible with CCUS and offer better efficiency.
• Supercritical CO₂ Cycles: Emerging technologies like supercritical CO₂ power cycles, such as the Allam-Fetvedt Cycle, show promise for more efficient and cleaner power generation.
• Regional Cooperation: Countries with limited geological storage capacity can benefit from regional cooperation to manage CO₂ storage and utilization.
• Policy and Financial Support: Strong policy frameworks, financial incentives, and regulatory support are necessary to drive the large-scale deployment of LECT.

Key Information

1. Asia's Energy Context

• Asia is home to over 60% of the world's population.
• It accounts for 90% of its energy needs from oil, coal, and gas.
• Asia is responsible for over half of global CO₂ emissions from fossil fuels.
• Coal provides 57% of the region's electricity, with a large, young fleet of power plants.

2. CCUS in Asia

• CCUS is vital for achieving NZE in Asia, particularly for industries that are difficult to decarbonize.
• There are currently 30 large-scale CCUS facilities operating globally, capturing around 40 MtCO₂/year.
• Asia, especially China, should be a key focus for CCUS expansion.
• Examples of CCUS projects in China include the Jinjie project (0.15 MtCO₂/year) and the Huaneng Longdong Energy Base (1.5 MtCO₂/year capture capacity).

3. Cofiring with Low Carbon Fuels

• Cofiring coal with biomass, hydrogen, and ammonia can reduce GHG emissions.
• Japan is pursuing cofiring with low-emission ammonia, which can be produced from fossil fuels with CCUS or via water electrolysis.
• Cofiring is supported by policy tools in China, Japan, and Indonesia, and is considered a necessary step in the transition to NZE.

4. Power Generation Technologies

• High-efficiency, low-emission (HELE) ultrasupercritical (USC) coal power plants are recommended for new coal projects.
• Supercritical CO₂ (sCO₂) cycles, such as the Allam-Fetvedt Cycle, offer higher efficiency and lower costs compared to traditional systems.
• Fuel cell integration (e.g., solid oxide fuel cells and molten carbonate fuel cells) can further enhance the efficiency of LECT.

5. Industrial Applications

• Steel, cement, and aluminium industries are major contributors to CO₂ emissions in Asia.
• Decarbonization strategies include 'fuel switching' to hydrogen and ammonia, improved energy efficiency, and CCUS.
• In China, the use of coal in steel and cement production is extensive, and these sectors require significant investment in LECT.

6. Challenges and Opportunities

• Asian countries face challenges in phasing out coal due to economic growth, urbanization, and energy security.
• The transition to NZE requires a combination of technologies, including CCUS, HELE, cofiring, and digitalization.
• The report highlights the importance of a portfolio approach to decarbonization, involving both current and emerging technologies.

7. Policy and Financial Support

• Tax credits, carbon pricing, capital grants, and debt/equity financing are important drivers for CCUS deployment.
• The report outlines potential business models and policy incentives to support the commercialization of LECT.

Conclusion

Low emission coal technologies, particularly CCUS and HELE power generation, are crucial for Asia's transition to net zero emissions. While coal will not be phased out entirely, its role can be significantly reduced through technological upgrades and integration with low-carbon alternatives. The report recommends that the IEA and CIAB support the development and deployment of these technologies to align with global climate goals and ensure energy security and affordability in Asia.