Laser holographic interferometer system was used to visualize the concentration profiles within the vicinity of the gas-liquid interface under the co-current flowing conditions of gas/liquid two fluids.Interferograms ...Laser holographic interferometer system was used to visualize the concentration profiles within the vicinity of the gas-liquid interface under the co-current flowing conditions of gas/liquid two fluids.Interferograms on different experimental conditions were obtained,and the concentration profiles as well as the thickness of the concentration boundary layer were calculated.Finally the influence of the Reynolds number of the liquid phase on the boundary layer thickness was discussed.展开更多
A new operation policy--quasi-batch distillation for recovering infinitesimal amounts species existing in a mixture is presented. In quasi-batch distillation operation, feed is introduced with a constant flow rate ont...A new operation policy--quasi-batch distillation for recovering infinitesimal amounts species existing in a mixture is presented. In quasi-batch distillation operation, feed is introduced with a constant flow rate onto the feed stage of the column, and the flow rate of the distillate is the same as that of the feed, whereas the bottom product is withdrawn periodically. The behavior of quasi-batch distillation is simulated and analyzed through an example on heavy water separation. Comparing with continuous or batch distillation, the new operation policy is more reliable and efficient to achieve higher recovery of dilute component. This is especially suitable for separating small amount of precious species from large amount of raw material.展开更多
文摘Laser holographic interferometer system was used to visualize the concentration profiles within the vicinity of the gas-liquid interface under the co-current flowing conditions of gas/liquid two fluids.Interferograms on different experimental conditions were obtained,and the concentration profiles as well as the thickness of the concentration boundary layer were calculated.Finally the influence of the Reynolds number of the liquid phase on the boundary layer thickness was discussed.
基金Supported by the National Natural Science Foundation of China (No. 20136010).
文摘A new operation policy--quasi-batch distillation for recovering infinitesimal amounts species existing in a mixture is presented. In quasi-batch distillation operation, feed is introduced with a constant flow rate onto the feed stage of the column, and the flow rate of the distillate is the same as that of the feed, whereas the bottom product is withdrawn periodically. The behavior of quasi-batch distillation is simulated and analyzed through an example on heavy water separation. Comparing with continuous or batch distillation, the new operation policy is more reliable and efficient to achieve higher recovery of dilute component. This is especially suitable for separating small amount of precious species from large amount of raw material.
