铁钼催化剂固定床法生产低醇甲醛在我国实现工业化后,显出了不少优越性,受到了某些产业部门的欢迎。但它的缺点是甲醇与空气的浓度配比只能在爆炸下限操作,设备生产能力较低。提高生产能力的关键在于能否突破爆炸下限的限制,采用沸腾床工艺在爆炸区安全生产。沸腾床工 Iron-molybdenum catalyst fixed bed production of low-alcohol formaldehyde in China to achieve industrialization, showing a lot of advantages, has been welcomed by some industries. However, its disadvantage is that the concentration ratio of methanol and air can only operate at the lower explosion limit, and the equipment production capacity is lower. The key to improving production capacity lies in whether it can break through the lower explosion limit and adopt the ebullated bed process to produce safely in the blasting area. Ebb bed