Absorção e Stripping: Princípios, Design e Aplicações Ambientais - Engenharia Química

Figure 61 Typical absorption process larger the absorbent flow rate the larger the A The absorbent flow rate can be reduced by lowering the solute Xvalue Because Xvalues for many solutes vary exponentially with trailing solvent p this reduction can be achieved by already with ing T andor increasing p Increasing p also reduces the diameter of the equipment for a given gas throughput How ever adjustment of T by refrigeration andor adjustment of p by gas compression increases both capital and operating costs For a stripper the stripping factor S 1A KY L is crucial To reduce the required flow rate of stripping agent operation of the stripper at high T andor low p is desirable with an optimum stripping factor being about 14 For absorption and stripping design procedures are well developed and commercial processes are common Table 61 lists representative applications In most cases the solutes are in gaseous effluents Strict environmental standards have Separation Process Principles Third Edition PDFXChange Viewer File Edit View Document Comments Tools Window Help liquid absorbent 25 C 1013 kPa 1 Argon kmolh N2 14691 O2 22371 Water 535983 Acetone 005 Exit gas 25 C 90 kPa Argon kmolh N2 14691 O2 22397 Water 535980 Acetone 005 Feed gas 25 C 1013 kPa 30 Argon kmolh N2 1469 O2 226 Water 5360 Acetone 103 Exit liquid 25 C 1013 kPa 3 Argon kmolh N2 0009 O2 0017 Water 19267 Acetone 1025 SERENCAST MATIC 2052 x 2855 cm 100 options a Ag