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A Study on the N2O Separation Process from Crude N2O  

Cho, Jungho (Department of Chemical Engineering, DongYang University)
Lee, Taekhong (Department of Chemical Engineering, Hoseo University)
Park, Jongki (Korea Institute of Energy Research)
Publication Information
Korean Chemical Engineering Research / v.43, no.4, 2005 , pp. 467-473 More about this Journal
Abstract
Liquid phase nitrous oxide ($N_2O$) contains air, carbon monoxide, water, carbon dioxide and NOx as main impurities. It is known to be very dangerous to obtain a very pure $N_2O$ product by using solidification at low temperature. In this study a new method to obtain a high purity of $N_2O$ product based on a continuous distillation process was introduced. For the modeling of the continuous distillation process to obtain a product having a purity over 99.999％ of $N_2O$ stream, Intalox wire gauze packing- No. SCH-80S gauze packing column was used. Peng-Robinson equation of state was used for the modeling of the continuous distillation process and refrigeration system. Computational results performed in this work showed a good agreement with Aspen Plus simulation results.
Keywords
Nitrous Oxide; Continuous Distillation; Modeling; Peng-Robinson Equation of State;
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