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在常压填料塔中以清水吸收焦炉气中的NH3。标准状况下,焦炉气中NH3的浓度为0.01kg·m-3、流量为5000m3·h-1。要求回收率不低于99%。若吸收剂用量为最小用量的1.5倍。混合气体进塔的温度为30℃,空塔速度为1.1m·s-1,操作条件下的平衡关系为Y=1.2X。气相体积吸收总系数KYa=200kmol·m-3·h-1。试分别用对数平均推动力法及吸收因子法求总传质单元数及填料层高度。
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAA5ElEQVRYR2NkGGDAOMD2M+B0wKpVq9huv/jbxPD/fxwDA4MkhQ59zsDIuEhVgrkuLCzsF7JZOB3QOml5B8P//+UUWoyqnZGxszovsoI4B0xc9gyfzxmZmb2rcsK3IRvWMWm599///7fgcfTz6vwoKWId8B+f75kZGX0q8iK3kugAhur8KJRQxx0FE5fhdQC5UTPqgNEQGA2B0RAYDYHREBgNgaETAuTW96TqG7yt4tbRFhGRIQBqHTP9+8dIoDUMTxqk5AK8zXKYiaDWMYhNpANIaJYPdMdkwLtmpOZnctUPeDkAAP6tmiH1ggTLAAAAAElFTkSuQmCC)
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