Characterising gas behaviour during gas-liquid co-current up-flow in packed beds using magnetic resonance imaging

James HP Collins, Andrew Sederman, Lynn Gladden, Mobae Afeworki, J Douglas Kushnerick & Hans Thomann
Magnetic resonance (MR) imaging techniques have been used to study gas phase dynamics during co-current up-flow in a column of inner diameter 43 mm, packed with spherical non-porous elements of diameters of 1.8, 3 and 5 mm. MR measurements of gas hold-up, bubble-size distribution, and bubble-rise velocities were made as a function of flow rate and packing size. Gas and liquid flow rates were studied in the range of 20–250 cm3 s−1 and 0–200 cm3...
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