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Sun J.-L.,Northwest University, China | Chu Y.-Z.,Northwest University, China | Guo J.-G.,Shaanxi Weihe Coal Chemical Industry Group Co. | Liu Y.,Xian Three Dimensional Distillation Engineering Co. | Ma X.-X.,Northwest University, China
Huaxue Gongcheng/Chemical Engineering (China) | Year: 2012

The structural features and experimental studies of parabolic elliptic slant hole tray (PEST) were presented. The pressure drop, entrainment, weeping rate were determined by using air-water system; the tray efficiency was determined by CO 2 desorption, which were compared with sieve tray under the same conditions. The results show that within the operating flexibility and range, the entrainment rate and weeping rate are almost reduced by 29.6% and 55.5% respectively on average compared with those of traditional sieve tray, and the tray efficiency of PEST is improved by 37.7%, so PEST is a new slant hole tray with better comprehensive properties. Source


Du L.,Northwest University, China | Wang L.,Xian Three Dimensional Distillation Engineering Co. | Liu S.,Beijing Petrochemical Engineering Corporation Ltd | Chu Y.-Z.,Northwest University, China | Ma X.-X.,Northwest University, China
Xiandai Huagong/Modern Chemical Industry | Year: 2012

The liquid elevated quantity of the new bubble-cap tridimensional sieve (N-BTS) is studied by varying the operation parameters such as the gas and liquid flow rates, the height of clear liquid, the types of bubble-cap tridimensional sieve and the length of stretch. The optimal operating parameters are obtained. Based on the experimental data, the correlative equation can be achieved for calculating the liquid elevated quantity. Compared N-BTS with BTS and VST, the results showed that the N-BTS is better than VST and BTS. Source


Wang R.,Northwest University, China | Chu Y.-Z.,Northwest University, China | Wang L.,Xian Three Dimensional Distillation Engineering Co. | Liu Y.,Xian Three Dimensional Distillation Engineering Co. | Ma X.-X.,Northwest University, China
Xiandai Huagong/Modern Chemical Industry | Year: 2013

Four gas-liquid separators including gravity type, bumping type, filter type and spiral-flow type are introduced. The separation process and mechanism are briefly described. Combined gas-liquid separators are developed as well. Their structures are studied and the components are analyzed. Interactive multistage separation is formed in these combined gas-liquid separators to improve separation efficiency. Source

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