Crude Scrubber and Distillation Column ( Scrubber dan kolom destilasi) PT EVONIK INDONESIA)
Venturi Scrubber Design.xls
2
Raw Gas Venturi Scrubber Gas flow rate = ### ACFM Gas Temperature = 400 F Pressure = 1 atm Moisture Content = 5% v/v Dry Gas MW = 29 lb/mol Water MW = 18 lb/mol Particle mean size = 1 Efficiency = 99.90% Gas constant, R = 0.7032 Humidification of Inlet Gas = 0.03103448 lb water lb dry gas = From Psychrometric Chart = 400 F = 127 F = 0.1 lb water lb dry gas = Saturated Gas Flow rate = ### ACFM = 0.07025561 = 0.04360693 = ### ACFM = ### ACFM ΔP = 47 in W.C Throat Velocity (Used to size the scrubber) (L/G) = 20 gallons/(1000 ACF) K = 9.61769203 = 0.16111111 moles water or moles gas = 0.06596222 lb-gas = 256.727374 = 78.2505036 = 2.67691219 ft μm atm-ft 3 /(lb.mol.ͦR) Hin Hin Tin Tsat Hsat Hsat Qin dry ρdry lb dry gas/ft 3 ρw lb water vapor/ft 3 Qw Qin sat Bws ft 3 water ft 3 gas ρsat ft 3 -gas ʋthroat ft.s -1 ʋthroat m.s -1 Dthroat
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Sizing the venturi scrubber
Transcript of Venturi Scrubber Design.xls
Raw Gas Venturi Scrubber
Gas flow rate = 110,000.00 ACFMGas Temperature = 400 FPressure = 1 atmMoisture Content = 5% v/vDry Gas MW = 29 lb/molWater MW = 18 lb/molParticle mean size = 1Efficiency = 99.90%
Gas constant, R = 0.7032
Humidification of Inlet Gas
= 0.03103448 lb waterlb dry gas
=
From Psychrometric Chart
= 400 F
= 127 F
= 0.1 lb waterlb dry gas
=
Saturated Gas Flow rate
= 104,500.00 ACFM
= 0.07025561
= 0.04360693
= 11,611.11 ACFM
= 86,692.51 ACFMΔP = 47 in W.C
Throat Velocity (Used to size the scrubber)
(L/G) = 20 gallons/(1000 ACF)K = 9.61769203
= 0.16111111 moles water or
moles gas
= 0.06596222 lb-gas
= 256.727374
= 78.2505036
= 2.67691219 ft
μm
atm-ft3/(lb.mol. ͦR)
Hin
Hin
Tin
Tsat
Hsat
Hsat
Qindry
ρdry lb dry gas/ft3
ρw lb water vapor/ft3
Qw
Qinsat
Bws ft3 water
ft3 gas
ρsat
ft3-gas
ʋthroat ft.s-1
ʋthroat m.s-1
Dthroat
E33
Beathan: Additional flow of evaporated water vapor
E34
Beathan: Tota flow of gas inside scrubber at saturated conditions
E35
Beathan: @ 99.9% and 1micron 47" W.C < 80" W.C & it should work
= 81.5922834 cm
Throat and Diverging Sections
= 3
= 4
= 2.4477685 m
= 3.26369134 m
LThroat : DThroat
LDiverging : DThroat
Lthroat
LDiverging
