Abstract This paper investigates the equilibrium performance of CaO hydration and CaCO3/Ca(OH)2 co-calcination in calcium-looping processes. A novel lime hydration configuration is proposed, introducing saturated steam as the reactivating reagent and direct-heat-removal medium. The proposed hydrator generates a substantial amount of superheated steam, used elsewhere as required. The slaked lime and limestone are calcined simultaneously in a methane-concentrated oxy-fuel calciner. The equilibrium performance of the co-calciner is studied at different reactor temperatures, operating pressures, solid/gas feed ratios and feed compositions. A correlation is proposed which estimates the required gaseous feed composition for autothermal, coke-free and complete sorbent regeneration using this novel technology.

中文翻译：

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用于钙环碳捕获的吸附剂蒸汽再活化和甲烷浓缩煅烧：兼容性和局限性

摘要 本文研究了CaO 水合和CaCO3/Ca(OH)2 共煅烧在钙循环过程中的平衡性能。提出了一种新的石灰水化配置，引入饱和蒸汽作为再活化剂和直接除热介质。建议的水化器产生大量过热蒸汽，根据需要在其他地方使用。熟石灰和石灰石在甲烷浓缩氧燃料煅烧炉中同时煅烧。在不同的反应器温度、操作压力、固体/气体进料比和进料组成下研究了共煅烧炉的平衡性能。提出了一种相关性，用于估计使用这种新技术进行自热、无焦炭和完全吸附剂再生所需的气态进料组成。