Evaluation of test results of 1000 m3N/h pilot plant for CO2 absorption using an amine-based solution

Factors affecting CO2 absorption efficiency in packed column: A review

“…In absorption operation, it was well agreed in various studies that higher solution/liquid flow rate led to higher CO 2 removal efficiency [32,33,62,63,68,72,80,85]. Fig.…”

“…Otherwise, there would be higher CO 2 loading in the regenerated lean solvent and it would subsequently lower the absorption performance as observed by Arashi et al [68] in Fig. 6.…”

“…The improvement was especially obvious for MEA. This increasing trend was because the wetted surface of the packing material for gas-liquid contact increased with increase of solution flow rate [68]. Hence, there was an increase in the effective area for mass transfer process [33,72].…”

“…It is noted that the operating temperature of ammonia is much lower than MEA since ammonia is highly volatile and the low temperature is necessary to prevent ammonia slip (as explained in Table 3). Arashi et al [68] observed that when CO 2 loading in the lean solution was high, the driving force of mass transfer from gas to solution became small and the decrease in CO 2 removal efficiency could not be compensated even with the increase of solution flow rate. The strong influence of CO 2 loading to the mass transfer coefficient was also discovered by Setameteekul et al [78].…”

“…Relationship between solution flow rate (L/h) to (a) CO 2 removal; (b) CO 2 loading in lean solution at constant steam flow rate of 250 kg/h (for stripping process)[68].…”