Auto thermal biomass gasification produces syngas more energy-efficiently by utilizing the heat released from the reaction between CaO and CO₂. The auto thermal gasification process also reduces CO₂ emissions and gasification temperature. However, the high temperature required for the regeneration of spent CaO consuming large amounts of energy is a challenge for this process. This paper investigated the effect of steam on the regeneration of spent CaO during biomass gasification from an energy-saving perspective. The modelling results indicated that the regeneration temperature could be lowered with the introduction of steam while maintaining the same 60% CaCO₃ calcination efficiency. For example, the introduction of 10 ml h⁻¹ of steam can reduce the regeneration temperature by 50 °C compared to the regeneration under air environment. In addition, SEM and BET analysis confirmed that the steam flow rate needs to be precisely controlled to prevent it from diminishing the surface area of the sorbent and reducing the adsorption capacity of the regenerated CaO.

_{自热生物质气化通过利用 CaO 和 CO 2}之间反应释放的热量来更节能地生产合成气。自动热气化过程还降低了CO ₂排放和气化温度。然而，消耗大量能量的废CaO再生所需的高温是该过程的挑战。本文从节能的角度研究了蒸汽对生物质气化过程中废氧化钙再生的影响。建模结果表明，再生温度可以随着蒸汽的引入而降低，同时保持相同的 60% CaCO ₃煅烧效率。例如，引入 10 ml h ^-1与空气环境下的再生相比，蒸汽可降低再生温度50℃。此外，SEM 和 BET 分析证实，需要精确控制蒸汽流量，以防止其减少吸附剂的表面积并降低再生 CaO 的吸附能力。