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GAS ABSORPTION COLUMN

GAS ABSORPTION COLUMN. TEAM MEMBERS: SKIP POND KENNETH SIMPSON. OUTLINE. BACKGROUND OPERATION PRESSURE DROP FLOODING POINT DATA GRAPH CONCLUSIONS QUESTIONS. BACKGROUND. MEDIA --- 3/8” RASCHIG RINGS PACKED MEDIA HEIGHT = 5 FT. INNER DIAMETER OF COLUMN= 3 IN.

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GAS ABSORPTION COLUMN

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  1. GAS ABSORPTION COLUMN TEAM MEMBERS: SKIP POND KENNETH SIMPSON

  2. OUTLINE • BACKGROUND • OPERATION • PRESSURE DROP • FLOODING POINT • DATA GRAPH • CONCLUSIONS • QUESTIONS

  3. BACKGROUND • MEDIA --- 3/8” RASCHIG RINGS • PACKED MEDIA HEIGHT = 5 FT. • INNER DIAMETER OF COLUMN= 3 IN. • DENSITY OF H20 = .994g/cc • TEMPERATURE OF AIR = 24.50C • AIR ASSUMED TO BE DRY

  4. BACKGROUND

  5. BACKGROUND

  6. BACKGROUND • MEDIA --- 3/8” RASCHIG RINGS • PACKED MEDIA HEIGHT = 5 FT. • INNER DIAMETER OF COLUMN= 3 IN. • DENSITY OF H20 = .994g/cc • TEMPERATURE OF AIR = 24.50C • AIR ASSUMED TO BE DRY

  7. OPERATION • LIQUID DISTRIBUTION/FILM • “RICH” ENTERING GAS • MASS TRANSFER • COLLECTION OF LIQUID • GAS OUTLET

  8. OPERATION PROBLEMS • FLOODING • PRESSURE DROP • CHANNELING • INADEQUATE LIQUID FILM COVER

  9. PRESSURE DROP (P) • FLUID FRICTION • MEDIA TYPE AND SHAPE • TOWER DIMESIONS • LIQUID/GAS FLOW RATES • DENSITY & VISCOSITY OF LIQUID

  10. FLOODING POINT • GAS FLOW FORCED THROUGH LIQUID • CORRELATION WITH P • PACKING FACTORS 10-60 • Pflood = .115Fp.7 • PACKING FACTOR > 60 • ASSUMED = Pflood = 2 IN. H20/FT.

  11. GAS COLUMN DATA

  12. CONCLUSIONS • Pflood = 2 in. H20/ft. of packing • ENGR.435 COLUMN = 10 in. H20 • P(geyser) = 26 in. H20 • COLUMN BECOMES INOPERABLE • OPTIMUM OPERATING POINT • 1/2 GAS FLOW RATE OF FLOODING • 1.5 LBS./MIN

  13. QUESTIONS ???

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