Absorption with chemical reaction: h2s scrubbing with mea as shown in problem 3.22, scrubbing of hydrogen sulfide from natural gas using water is not practical since it requires large amounts of water due to the low solubility of h. s in water. if a 2n solution of monoethanolamine (mea) in water is used as the absorbent, however, the required liquid flow rate is reduced dramatically because the mea reacts with the absorbed hs in the liquid phase, effectively increasing its solubility. for this solution strength and a temperature of 298 k, the solubility of h. s can be approximated by (de nevers, 2000) puasi (19.4 pa)exp (1952: 25: ). repeat the calculations of problem 3.23, but using a 2n monoethanolamine solu- tion as absorbent.