Activation Strategies for Calcium-Based Sorbents for CO2 Capture: A Perspective
Activation Strategies for Calcium-Based Sorbents for CO2 Capture: A Perspective
复制标题
DOI：
10.1021/ie200802y
复制
发表时间：
2012-02
影响因子：
4.2
通讯作者：
Fu-Chen Yu;Nihar Phalak;Zhenchao Sun;L. Fan
中科院分区：
文献类型：
--
作者：
Fu-Chen Yu;Nihar Phalak;Zhenchao Sun;L. Fan
化学链工艺（CLP）是一种可行的CO2控制技术，它利用钙基吸附剂在含碳燃料转化之前、期间或之后通过循环碳酸化-煅烧反应（CCR）捕获CO2。通过过去和现在的大量研究工作，人们发现基本过程概念在更大规模上具有吸引力。此外，基于实验结果的工艺模拟表明，与低温工艺如胺基工艺相比，该高温工艺的寄生能量消耗相对较低。钙基吸收剂在苛刻操作条件下循环反应中保持稳定的反应活性和物理完整性的能力是钙链技术成功的最重要标准之一。尽管来源于天然前体的钙基吸收剂资源丰富且价格低廉，但在高温下反应活性迅速劣化。
The chemical looping process (CLP) using calcium-based sorbents to capture CO2 through cyclic carbonation–calcination reaction (CCR) before, during, or after the conversion of carbonaceous fuel occurs, is a viable CO2 control technology. With extensive past and current research efforts, the basic process concept has been found to be attractive at larger scales. Additionally, process simulations based on experimental results indicate that the parasitic energy consumption for this high temperature process is relatively low compared to low temperature processes such as the amine-based process. The ability of the calcium-based sorbents to maintain stable reactivity and physical integrity in cyclic reaction under severe operating conditions is one of the most important criteria for the success of the calcium looping technology. Despite being abundant and cheap, calcium-based sorbents derived from naturally occurring precursors, such as limestone and dolomite, suffer from rapid reactivity deterioration after hi...