An industry that processes oranges of the Navel variety obtains a juice that contains 110 ppm of limonin, which gave it a bitter taste. In order to remove the bitter taste of the juice, a stream of 100 kg/h of the juice is fed to a cylindrical column of 0.15 m2 section, containing a synthetic molecular sieve that adsorbs limonin. the solid adsorbent has a density of 950 kg/m3 of filler, presenting a volumetric transfer coefficient of 1.5x102 h -1, being its maximum retention capacity of 10 mg of limonin per kg of adsorbent. For the density of the juice, the value of 1,000 kg/m3 can be taken. In the range of concentrations that the column works, the adsorption isotherm is linear, expressed by the equation m=0.12C. It can be assumed that the breaking curve is symmetric. Calculator: a) Exchange zone b) If it takes 25 minutes for the juice stream to leave the column limonin starts to come out, calculate the height that the adsorbent bed must reach.