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在常压填料吸收塔中,以清水吸收焦炉气中的氨气。标准状况下,焦炉气中的氨的浓度为0.01kg/m3,流量为5000m3/h。要求回收率不低于99%,若吸收剂用量为最小用量的1.5倍。混合气进塔的温度为30℃,空塔速度为1.1m/s。操作条件下平衡关系为Y=1.2。气体体积吸收系数KYa=200kmol/(m3⋅h)。试分别用对数平均推动力法及数学分析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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