Solvents for CO2 capture in pre-combustion processes

JOSÉ A. SCILIPOTI; FRANCISCO A. SÁNCHEZ; SELVA PEREDA; ESTEBAN A. BRIGNOLE

Carlos Paz

Congreso; IV Reunión Interdisciplinaria de Tecnología y Procesos Químicos (RITeQ2018); 2018

IPQA - UNC

After a brief revision of the literature, this work develops a computer-aided molecular design procedure (GCMOLD) based on the group contribution equation of state, GC-EOS. The GCMOLD program is applied to a case study of CO2 capture for a precombustion process. For this problem, a reduced number of groups are selected for the synthesis of potential solvent structures. This selection is based on the favorable effect of CO2-philic groups on the solvents absorption power. A list of potential solvents is then generated and ranked on the basis of their solvent power, and the effect of paraffinic and polar structures on solvent power and solvent loss is analyzed. Finally, a preliminary scheme of an absorption cycle with low energy consumption is proposed.