摘要
天然气在中国能源结构中的占比不断增加,其主要成分甲烷在燃烧过程中会产生大量CO和CO_(2)。甲烷化学链燃烧技术是CO_(2)捕集的重要技术之一,具有能量梯级利用、避免NO_(x)产生等优点,在提高能量利用率的同时可得到高纯度CO_(2),有利于后续封存和转化利用,对我国“双碳”战略实施具有重要意义。影响化学链燃烧技术的主要因素是氧载体,因此氧载体的选择尤为重要。介绍了化学链燃烧技术的基本原理及特点,重点对以甲烷为燃料的化学链燃烧中的镍基、铜基、铁基、锰基、复合金属和非金属氧载体的研究进展进行了总结,发现氧载体的反应性能主要受其载氧能力、反应活性和抗烧结等性能的影响;同时对甲烷化学链燃烧技术中氧载体未来的发展前景进行了展望。
The proportion of natural gas is increasing in the energy structure of China.Methane,the main component of natural gas,produces large amounts of CO and CO_(2) in the combustion process.Chemical-looping combustion technology of methane is one of the important technologies for CO_(2) capture,with the advantages of energy cascade utilization and NO_(x) avoidance.While improving energy utilization rate,high purity CO_(2) can be obtained,which is beneficial to the subsequent storage and transformation and utilization,and is of great significance to the implementation of the “double carbon” strategy of our country.The main factor affecting the chemicallooping combustion technology is oxygen carrier,so the choice of oxygen carrier is particularly important.The basic principle and characteristics of chemical-looping combustion technology were presented,and the research progress of nickel base,copper base,iron base,manganese base,composite metal and non-metallic oxygen carrier in chemical-looping combustion with methane as fuel was summarized.It is found that the reaction performance of oxygen carrier is mainly affected by its oxygen carrying capacity,reactivity and sintering resistance.At the same time,the future development prospect of oxygen carrier in chemical-looping combustion technology of methane is prospected.
作者
倪永明
邓冀童
乔韦军
王海英
陈彦广
田宇轩
NI Yongming;DENG Jitong;QIAO Weijun;WANG Haiying;CHEN Yanguang;TIAN Yuxuan(Daqing Petrochemical Research Center of Petro China,Daqing 163714,Heilongjiang,China;College of Chemistry and Chemical Engineering,Northeast Petroleum University,Daqing 163318,Heilongjiang,China)
出处
《低碳化学与化工》
CAS
北大核心
2023年第4期8-15,共8页
Low-Carbon Chemistry and Chemical Engineering
关键词
化学链燃烧
甲烷
氧载体
CO_(2)捕集
chemical-looping combustion
methane
oxygen carrier
CO_(2) capture
