甲烷化
替代天然气
环境科学
烟气
废物管理
碳纤维
化学
甲烷
计算机科学
工程类
合成气
催化作用
算法
生物化学
复合数
有机化学
作者
Zongze Lv,Hong Du,Shaojun Xu,Tao Deng,Jiaqi Ruan,Changlei Qin
出处
期刊:Applied Energy
[Elsevier]
日期:2024-02-01
卷期号:355: 122242-122242
被引量:4
标识
DOI:10.1016/j.apenergy.2023.122242
摘要
Carbon capture and utilization (CCU) by methanation combines CO2 capture and Power-to-Gas (PtG) routes, and could simultaneously realize excess clean energy storage and industrial flue gas carbon mitigation. However, a problem of large energy consumption is associated with the long-chain CCU-methanation process. In contrast, integrated carbon capture and utilization (ICCU) could largely reduce energy consumption by integrating CO2 capture and methanation in just one reaction device. Although progressive work has been done on the development of ICCU-methanation, it still lacks of quantitative evaluation on the energy consumption and production cost. Herein, techno-economic analysis is conducted on calcium looping-based ICCU-methanation and the reference CCU-methanation. Results show that ICCU-methanation only requires 1/3 coal consumed by CCU-methanation to complete carbon capture of a 1000 MWe coal-fired power plant. When waste heat recovery is considered, the plant equipped with ICCU releases 83.6 kg CO2 per 1 MWe h−1 of electricity comparing to 148.93 kg of CCU. Meanwhile, CH4 cost by ICCU scheme is 837.1 € t−1, much lower than the 962.86 € t−1 of CCU. After taking the recovery of waste heat and carbon tax into account, the cost of CH4 produced by ICCU becomes to be 443.26 € t−1, approaching the market price of natural gas (429 € t−1), showing a promising application perspective.
科研通智能强力驱动
Strongly Powered by AbleSci AI