Transpiring wall reactor can effectively minimize reactor corrosion and salt deposition problems, which seriously hinder the commercialization of supercritical water oxidation. In this work, methanol was selected as organic matter, and the influences of key operating parameters on water film properties and organic matter removal were investigated mainly via numerical simulation. The results show that methanol conversion could be higher than 99% and hardly affected by various feed and transpiration water parameters. The highest value of reactor center temperature significantly increased by about 300 K as feed preheating temperature changed from 673 K to 823 K. Decreasing feed flow rate, feed concentration, feed preheating temperature and transpiration water temperature, and increasing transpiration intensity reduced water film temperature but raised coverage rate, which are beneficial to forming excellent water film with good corrosion and salt deposition resistance. These findings can provide significant reference for the optimization of reactor operating parameters.

蒸腾壁反应器可以有效地减少反应器腐蚀和盐沉积问题，这些问题严重阻碍了超临界水氧化的商业化。本工作以甲醇为有机物，主要通过数值模拟研究了关键操作参数对水膜性质和有机物去除的影响。结果表明，甲醇转化率可达99%以上，几乎不受各种进料和蒸腾水参数的影响。随着进料预热温度从 673 K 变为 823 K，反应器中心温度的最高值显着增加约 300 K。 降低进料流速、进料浓度、进料预热温度和蒸腾水温度，蒸腾强度的增加降低了水膜温度，但提高了覆盖率，有利于形成具有良好耐腐蚀性和抗盐沉积性的优良水膜。这些发现可为反应堆运行参数的优化提供重要参考。