https://doi.org/10.3390/pr9122184
“It can be seen in Figure 3 that L/G has different effects on reboiler energy consumption and its three parts. With the increase of L/G, Qabs is basically unchanged, and QT increases linearly, while Qcon first decreases and then increases. The sum of total energy consumption, Qreb, first decreases and then increases with the increase of L/G. The stronger the amine’s cyclic capacity, the smaller the L/G and the amount of solvent used. When L/G drops to a certain value, Qreb suddenly increases significantly, indicating that the cyclic capacity cannot increase indefinitely. The lowest energy consumption and relatively strong cyclic capacity can be obtained at a certain value, which is shown in Figure 4. In addition, it can be seen from Figure 4 that for different solvents, the reboiler energy consumption changes with the cyclic capacity in the same trend.”
“Figure 4. The relationship between reboiler energy consumption, Qreb, and circulating absorption: (a) MEA, (b) DMEA, (c) 1-MPZ, (d) AMP and (e) HEPZ.”