The objective of the current research is to investigate the addition of a solid proton donor catalyst such as HZSM-5 and Ce(SO4)(2)/ZrO2 to the amine solvent regeneration process at the operation temperature of 85 degrees C. The HZSM-5 zeolite with Si/Al ratios of 5 to 20 was synthesized by hydrothermal method. The solid superacid catalyst, Ce(SO4)(2)/ZrO2, was prepared by simply doping ZrO2 with Ce and modifying with sulfate simultaneously. Various techniques such as X-ray diffraction, energy-dispersive X-ray spectrometry, Brunauer-Emmett-Teller, NH3-temperature-programmed desorption, and pyridine Fourier transform infrared spectroscopy were used to characterize the solid acid catalysts. The performance of the catalysts was evaluated in terms of their CO2 desorption rate, CO2 cyclic capacity, and heat duty. The experimental results indicated that the addition of the catalyst to the solvent regeneration process showed simultaneous increase in CO2 desorption rate and cyclic capacity as well as reduction of heat duty. The heat duty of the Ce(SO4)(2)/ZrO2 catalyst was 62 kJ/mol CO2, which required 56% less energy for regeneration than without catalyst (110 kJ/mol CO2). The solid catalyst could help CO2 desorption by providing free protons. The Ce(SO4)(2)/ZrO2 catalyst exhibited a much better performance than the HZSM-5 catalysts, as it possessed a strong acid site and a large amount of Bronsted acid sites as well as a large pore size, which effectively facilitated CO2 desorption.