We investigated the effect of temperature and monoethanolamine (MEA) concentration on self-diffusivity acid gases, CO2 , H2S in aqueous MEA solutions. For this purpose, we computed densities pure 30 wt% MEA/water solutions while scaling LJ energy (ϵ) parameter point charges MEA. Results show that with a factor 0.80 applied to MEA, agree well experimental ones from literature. This was tested by...