Optimal design of solar-aided hydrogen production process using molten salt with CO2 utilization for polypropylene carbonate production

In this work, optimal design for solar steam methane reforming using molten salt (SSMRMS) with CO2 capture and utilisation is investigated by employing a machine-learning based optimisation framework. The results obtained show that a 65.77 % reduction can be obtained compared with the existing SSMR-MS. The optimal Levelised Cost of Hydrogen Production (LCHP) is 1.26 $ kg -1 which represents about half of the LCHP in the existing SSMR-MS. The captured CO2 can produce around 485.73 kt polypropylene carbonate annually.