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wg423(金币+50, 翻译EPI+1): 代发 2011-04-14 13:08:39
Two vertical bundles is installed into the equipment to replace the hydrogen penetrating palladium membrane module.the pressure drop flow rate curve,the pressure pulsation,the bed axial density distribution and bed inflation rate is investigated ,compared with them in the gas-solid flowing law in free bed. Results show that the bed's pressure pulsation is reduced after the vertically inner component being joined into device;Axial density in the bed is more even than that in the free bed, explaining for the breaking and suppressing ability that the inner component have on the bubble;Compared with the free bed ,fluidized bed with inner component have a smaller starting turbulent-speed and larger bed inflation rate;Combined with a lot of experimental data,the calculation formula for bubble size is fixd and the bubble diameter model applicable to the new type membrane fluidized bed reactor is established;Experimental results show that the model's caculated result can accurately describe the bubble size in dense-phase bed under the tuburlent state,which can provide the basic datas for the optimal design
of the industrial fluidized bed reactor. |
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