甲醛工艺化学反应余热及尾气的综合利用北京化工三厂在甲醛生产过程中，甲醇气体被氧化成甲醛气体，反应时大量放热，温度高达７００℃，然后用大量的冷却水将此气体急剧冷却到２６０℃以下，否则高温下的甲醛将近一步氧化成甲酸，严重影响到甲醛的产品质量和产量。尾气中... Formaldehyde Chemical Reactance Waste Heat and Tail Gas Utilization In the process of formaldehyde production in Beijing Chemical Industry Third Factory, methanol gas is oxidized to form formaldehyde gas, which is exothermic during the reaction and reaches a temperature of 700 ° C. The gas is then rapidly cooled with a large amount of cooling water To 260 ℃ below, or the formaldehyde at a high temperature oxidation step into formic acid, seriously affecting the formaldehyde product quality and yield. Exhaust ...