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Simulation and analysis of pressure swing adsorption: ethanol drying process by the electrical analogue

机译:变压吸附的模拟分析:电模拟乙醇干燥工艺

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One column pressure swing adsorption (PSA) for dehydration of mixture of ethanol 93.54% and water 6.46% (wt) was simulated numerically by the electrical analogue model at feed pressure 2.0-5.0 bar, operating temperature 120-150 deg C, and vacuum desorption. Increasing feed pressure may increase recovery and productivity. An anisotropic valve connecting the column entrance with the product tank may improve the operating results to obtain 99.9% ethanol at feed pressure 3.5 bar. Vacuum desorption may raise product purity and recovery to obtain 99.9 ethanol and 60% recovery at feed pressure 2.0 bar and blowdown to 0.4 bar.
机译:通过电模拟模型在进料压力2.0-5.0 bar,工作温度120-150℃和真空脱附的条件下,通过电模拟模型对用于93.54%的乙醇和6.46%(wt)的乙醇混合物脱水的一塔变压吸附(PSA)进行了数值模拟。 。进料压力的增加可以提高回收率和生产率。将色谱柱入口与产品罐连接的各向异性阀可以改善操作结果,以在进料压力3.5 bar下获得99.9%的乙醇。真空解吸可以提高产品纯度和回收率,在进料压力2.0 bar和排污至0.4 bar的条件下获得99.9乙醇和60%的回收率。

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