Prospects of CCUS technology under resource utilization and environmental risks.

Area of Science:

• Environmental Science
• Climate Change Mitigation Technologies
• Chemical Engineering

Background:

• Carbon dioxide capture, utilization, and storage (CCUS) is crucial for global climate mitigation.
• CCUS supports low-carbon fossil fuel use and decarbonization in challenging sectors.
• Various CCUS technologies present different trade-offs regarding energy, resources, and environmental effects.

Purpose of the Study:

• To systematically review energy consumption, resource implications, and environmental risks of CCUS technologies.
• To evaluate the full CCUS chain for a comprehensive understanding.
• To identify pathways for optimizing CCUS integration and managing associated risks.

Main Methods:

• Systematic evaluation of energy consumption patterns.
• Assessment of resource utilization (water, land).
• Analysis of environmental risks (leakage, acidification, supply chain).

Main Results:

• CCUS contributes to energy security and enables negative emissions but requires substantial energy input.
• Improvements in water use and land productivity are achievable, offering socioeconomic advantages.
• Large-scale CCUS deployment introduces risks like CO2 leakage, acidification, and supply-chain vulnerabilities.

Conclusions:

• CCUS technologies present a complex balance of benefits and risks.
• Optimizing CCUS integration requires strategic development pathways.
• Informed policy and technological advancements are essential for effective CCUS risk management.