Abstract: A system for converting CO2 to methanol includes a reverse water gas shift (“RWGS”) reactor configured to receive a first CO2 stream and a hydrogen gas stream under a sufficient temperature and a sufficient pressure for an RWGS reaction to proceed. The RWGS reactor outputs an exit stream that includes CO. The system also includes a heat exchanger/condenser in fluid communication with the RWGS reactor configured to remove water from products of the RWGS reaction to form a dried exit stream that includes CO; and a membrane contactor reactor configured to receive a combination of hydrogen, CO2, and the dried exit stream. The membrane contactor reactor also configured to output a first output stream including methanol dissolved in a sweep liquid and a second output stream including gaseous H2, gaseous CO, gaseous CO2, and gaseous methanol.