| 摘要 |
A method for treating a gas stream to remove heat, gaseous, liquid or particulate matter, or add heat, vapor, or moisture, which includes the steps of: providing a tower having a bed with fluidizable hollow ellipsoidal packing with a long semi-axis and a short semi-axis; introducing a liquid stream into the tower at a liquid flow rate L, and countercurrently introducing the gas stream into the tower at a gas flow rate G sufficient to maintain the bed in a fluidized state and a gas velocity v; and adjusting the volume ratio of the liquid flow to gas flow to cause the ellipsoidal packing to circulate predominantly in the vertical direction relative to the long semi-axis and to maintain a pressure gradient DELTA P/Ho across the depth of the fluidized bed of at least about 1500 Pa/m, and, simultaneously, to satisfy the equation: L/G=K1( DELTA P/Hov)+K2 wherein L/G is the volume ratio of liquid to gas; DELTA P is the pressure drop across the bed; Ho is the bed height in a state of rest; v is the gas velocity; and K1 and K2 are constants.
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