Enhancement in specific absorption rate by solvent microencapsulation

Abstract

Microencapsulation of liquid solvents (MECS) has been proposed as a means of increasing the rate of absorption in gas separation processes. Surface renewal theory was used to rigorously quantify the increase in absorption microencapsulation could provide, compared to traditional packed columns. The results indicate that, for chemical solvents, gas flux will be similar in the two cases, while for physical solvents gas flux into MECS may be larger, owing to the reduction in spatial scales. However, previous publications may have overestimated the increase in surface area that microencapsulation can provide by approximately 3-10 times. Internal fluid flow inside fluidized MECS was also studied,..