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Rotating packed bed is a new type of mass transfer equipment , the use of high-speed rotation , making the material mass transfer reactions are hypergravity environment . Because overweight force environment , the white fluid shear force to overcome the surface tension between the molecules , so that the phase boundary between the contact area greatly improved significantly improved , while making mass transfer effects . High Gravity machines compared to traditional mass transfer tower equipment size exponentially decreases the mass transfer effect is very ideal , in some fields , including chemical refining, bio-pharmaceuticals, Nanomaterials applied the technology for industrialization operation with a good prospect of application . This study investigated the rotating packed bed under atmospheric pressure , the use of the effective mass transfer chemical absorption method for the determination of mesh packing specific surface area and the liquid-phase mass transfer coefficient . Legend than the surface area and the liquid mass transfer for a high concentration of sodium hydroxide solution , the effective mass transfer coefficient can be regarded as independent of variables can be used to surface renewal theory, by measurement at the outlet of the liquid phase concentration of the solution and a gas phase of carbon dioxide gas partial pressure , the effective mass specific surface area can be calculated directly . At the same time , the study of different operating conditions , including the speed of the super-gravity machine , liquid spray density , the gas flow rate and the reaction temperature results . While for the low concentration of sodium hydroxide solution , the effective mass transfer mass transfer coefficient is related to the specific surface area with the liquid , and there is specific both relational association , taking into account the effective mass than the surface area of ??the hydrodynamic parameters in the same under the operating conditions for the fixed value , and is fixed to the operating conditions of the experiment , the value of the liquid phase mass transfer coefficient can be obtained through the correlation further , but also can change the operating conditions , to observe the influence trend . Experiments, the replacement of the absorbing liquid is sodium carbonate - bicarbonate buffer solution , the same absorption in certain proportion of carbon dioxide gas in the mixed gas , wherein the catalyst is sodium hypochlorite , changing catalyst concentration to alter the kinetic constants of the catalytic reaction , using its effective mass quality than the surface area of ??the linear relationship , fitting a straight line, after a simple operation , the demand value of the slope . And its influence by changing the operating conditions, study the changes of the operating conditions .
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