Enormous efforts have been devoted to improving the cyclic reactivity of the Ca-based sorbent for cyclic CO₂ capture. Steam reactivation is one of the most promising technologies to regenerate the CO₂ capture performance of the Ca-based sorbent remarkably. However, the strength of the pellets during the steam reactivation process is insufficiently investigated. This study examined the influences of steam addition during calcination on the CO₂ capture capacity and mechanical strength of the bio-templated sorbent over multiple carbonation-calcination cycles. A CO₂ uptake of 0.31 g/g was achieved after 20 cycles by adding 30 % steam into the calcination atmosphere, which is 2.2 times higher than the cycles without steam injection. After the long-term test up to 100 cycles with 30 % steam in the calcination environment, a 6-fold increase in the average crushing force of the pellets was observed. The enhancement of the mechanical strength was attributed to the synergy effect of thermal sintering and atmosphere-induced sintering. Generally, steam addition during calcination demonstrated great potential in retaining CO₂ capture capacity and improving the mechanical strength of the bio-templated sorbent.

已经付出了巨大的努力来提高用于循环CO ₂捕获的基于Ca 的吸附剂的循环反应性。蒸汽再活化是显着再生Ca基吸附剂的CO ₂捕获性能的最有前景的技术之一。然而，在蒸汽再活化过程中球团的强度研究不足。本研究检查了在煅烧过程中添加蒸汽对生物模板吸附剂在多个碳酸化-煅烧循环中的 CO _{2捕获能力和机械强度的影响。}一氧化碳₂通过在煅烧气氛中加入 30% 的蒸汽，在 20 个循环后达到 0.31 g/g，这是没有蒸汽注入循环的 2.2 倍。在煅烧环境中使用 30% 的蒸汽进行长达 100 次的长期测试后，观察到粒料的平均压碎力增加了 6 倍。机械强度的提高归因于热烧结和气氛诱导烧结的协同作用。通常，在煅烧期间添加蒸汽在保持CO ₂捕获能力和提高生物模板吸附剂的机械强度方面表现出巨大潜力。