Experiment Research And Numerical Simulation About Bubble Scrubbed Desulphurization Process

The Consume of fossil fuel is proportion 30% of total fuel consumption in China, the energy consume crease fleetly with the development of our country economic, the number of large devices of burning coal continuum crease too. So that trend of the emission pollution quantum from burning fossil fuel goes up every year.The demand to environment protect is enhancing gradually with our county economic development and population standard of living improve people. And for SO₂ pollution emission is controlled at lower level, the more strict allow emission standard and solution way have been established. Recently, because of most costliness desulphrization technology, many enterprises hold attitude of looking on and waiting for which process of desulphurize to be adopted until now. Therefore it is one of the most concerning with question for engineers engaging with desulphurize process to strive to research a kind of cheap and effective desulphuriz process.Bubble desulphurize process is specify one with future other than common process. The technology of bubble desulphurize process is relatively simpleness compared with other. It costs much less, whether at construct investing or at operation cost, than common lime/limestone wet scrubbing process that the bubble process is applied in the boiler burning lower sulphurize coal. It possesses great potential for lack finance counties that bubble process is adopted in clear gas. Hence it is important to study their process and application in industry. Therefore author has developed for bubble process dynamic reaction character and mathematic simulation.The experiment research and numerical simulation about bubble scrubbed desulphurization process is gone in the paper. The double films model bubble is adopted for desulphurize process in mathematic simulated. The result of mathematic simulation is coherent almost with result of test practically. The results are shown: In the bubble desuphurize process, the influence factors for efficiency of remove desuphurize are mostly SO₂ concentration, ratio of liquid to fluegas, gas temperature, pH value, the immerge depth of nozzle tube in liquid etc. The result of numerical simulation show when inlet concentration of SO₂ creases at some range, the efficiency of remove desuphurize creases too, but over that range the efficiency decrease, it is appropriate that the system operation would keep pH value great than 8. The efficiency of remove desulphurize is still depended on the immerge depth of nozzle tube in liquid, the deeperthe immerge depth of nozzle tube in liquid, the higher efficiency of remove desuphurize. It is appropriate that keep immerge depth great than 200mm. the efEciency of remove desulphurize is sensitivity to change temperature of inlet gas, the lower the temperature of inlet gas, the higher the efficiency of remove desuphurize. The ratio of calcium to liquid has influence obviously to the efficiency of remove desuphurize, it is appreciate to keep the ratio about 4.5 in operation.The results would be base for research and application bubble scrubbed desulphurization technology.