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| Design and application of sieve stripping tower in oil extraction plant |
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| KeyWord:stripping tower live steam rating residual solvent |
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| Abstract: |
| To reduce the live steam consumption of the stripping tower and improve the quality of crude oil, novel type of sieve stripping tower for 2 000 t/d oil extraction plant was designed. On the basis of Daltons law of partial pressures and Smith chart, the theoretical live steam consumption was 580 kg/h, empty tower velocity was 0.94 m/s and tower diameter was 1 200 mm. The tower tray and downcomer of sieve stripping tower were designed, and the tower was rated by chemical simulation software. Rating results showed that the pressure drop, flooding factor and downcomer backup were suitable. Using the designed sieve stripping tower in practical production, lower residual solvent of crude oil, lower operation temperature （dropped from 115?℃ to 105?℃ ） and lower live steam consumption （saving 39%） were realized compared with the disk stripping tower. |
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