Enhancing Industrial Resource Efficiency via Integrated CO₂ Capture and Utilization: A Feasibility Study
摘要
Tackling global climate change requires urgent, comprehensive strategies to decarbonize industrial sectors, which are among the largest sources of greenhouse gas emissions. In this context, advanced carbon capture and utilization (CCU) technologies present a promising pathway that extends beyond traditional emission reduction approaches. This study assessed the integration of amine-based CO₂ capture with methanol synthesis in cement plants, focusing on energy efficiency and economic feasibility. Simulation results showed that the proposed system can achieve high CO₂ capture efficiency (89.5%) while utilizing waste heat to reduce external energy demands by 28%. Methanol production from captured CO₂ demonstrated a yield of 1.4 tons per ton of CO₂, resulting in potential revenue of $525/ton CO₂. The levelized cost of methanol production was competitive, and a payback period of 6.5 years was achievable under current carbon pricing incentives. These findings suggest that integrating CCU systems into cement operations not only supports emission reduction goals but also enhances industrial profitability through resource utilization and thermal integration.