In this investigation, the CO₂ capture performances of zeolite 13X monoliths with 600 and 800 cells per square inch (cpsi) in the presence of SO₂/NO impurities under dry and humid conditions were evaluated and compared with that of 13X beads. Dynamic breakthrough tests demonstrated a drastic reduction in CO₂ capture capacity and deterioration of kinetics under dry‐clean conditions, whereas, upon switching the feed from a clean gas to contaminated gas which contained SO₂ and NO, different adsorption performance was observed. Specifically, in dry‐contaminated mode, the adsorbents retained their capture capacities with comparable kinetics to that of dry‐clean feed conditions, however, in humid‐contaminated mode, the adsorbents experienced improved CO₂ uptake and CO₂/N₂ selectivity, albeit at the expense of deteriorated kinetics. These findings indicate that the presence of SO₂ and NO contaminants, especially SO₂ contaminants, lead to dramatic changes in the adsorption performance of zeolite 13X monoliths, indicating the importance of evaluating adsorbent materials under realistic conditions.

中文翻译：

---

在存在SOx，NOx和湿气的情况下，分析13X沸石整料上的动态CO2捕获

在这项研究中，评估了在干燥和潮湿条件下，在存在SO ₂ / NO杂质的情况下，每平方英寸600和800孔（cps​​i）的13X沸石单块的CO ₂捕集性能，并将其与13X珠粒进行了比较。动态突破性试验表明，在干洗条件下，CO ₂捕集能力急剧下降，动力学性能下降，而在将进料从清洁气体转换为含有SO _2的污染气体时和NO，观察到不同的吸附性能。具体而言，在干污染模式下，吸附剂保持了与干洗进料条件相当的动力学捕集能力，然而，在湿污染模式下，尽管吸附剂改善了CO ₂吸收和CO ₂ / N ₂选择性以降低动力学性能为代价。这些发现表明，SO ₂和NO污染物，特别是SO ₂污染物的存在导致沸石13X整料的吸附性能的急剧变化，表明在实际条件下评估吸附剂材料的重要性。