摘要
煤大规模燃烧产生的CO_2加剧了温室效应,CO_2捕集、利用和储存(CCUS)是一种可实现燃煤电站大规模碳减排的关键技术。固体材料吸附CO_2技术被认为是具有良好应用前景的碳捕集技术。在众多固体CO_2吸附剂中,Mg O因具有较高吸附容量、较低成本、较低再生能耗和广泛可用性被认为是理想的CO_2吸附材料。综述了常规Mg O的CO_2吸附性能,针对Mg O吸附CO_2存在的问题,重点介绍了提高Mg O吸附CO_2性能的方法,主要包括优化结构和添加碱金属熔融盐等可行方法。最后综合分析了Mg O吸附剂用于工业CO_2捕集的优势及面临的挑战,从Mg O的制备工艺、规模化成型及捕集CO_2系统设计优化等方面对今后的研究方向进行了展望。
Due to CO 2 produced by large-scale coal combustion aggravates the greenhouse effect,CO 2 capture,utilization and storage(CCUS)is a key technology to achieve large-scale carbon emission reduction at coal-fired power station.CO 2 adsorption by solid materials is considered as a promising carbon capture technology.Among many solid CO 2 adsorbents,MgO is considered as an ideal CO 2 adsorption material because of its high adsorption capacity,low cost,low regeneration energy consumption and wide availability.In this paper,the CO 2 adsorption performance of conventional MgO adsorbents was reviewed.According to the existing problems of CO 2 adsorption by MgO,the methods to improve the CO 2 adsorption performance by MgO were introduced,including the feasible methods such as optimizing the structure and adding alkali metal molten salt.Finally,the advantages and challenges of MgO adsorbents for industrial CO 2 capture were comprehensively analyzed.In addition,the research direction from the aspects of the fabrication strategy of MgO,large-scale molding of MgO pellets and CO 2 capture system design optimization using MgO in the future were prospected.
作者
徐运飞
李英杰
王涛
雷文涛
XU Yunfei;LI Yingjie;WANG Tao;LEI Wentao(School of Energy and Power Engineering,Shandong University,Jinan 250061,China;Shandong Naxin Electric Power Technology Co.,Ltd.,Jinan 250101,China)
出处
《洁净煤技术》
CAS
北大核心
2021年第1期125-134,共10页
Clean Coal Technology
基金
国家自然科学基金资助项目(51876105)
山东省重点研发计划重大科技创新工程资助项目(2019JZZY020118)。
