Modeling of synthesis gas and hydrogen production in a thermally coupling of steam and tri-reforming of methane with membranes

In this novel study, tri-reforming process was used as a heat source to proceed steam reforming of methane in a two membrane hydrogen perm-selective Pd/Ag thermally coupled reactor. Results illustrated that H2/CO ratio at the output of steam and tri-reforming sides reached to 6.1 and 0.9, respectively. Additionally the results showed that methane conversion at the output of steam and tri-reforming sides reached to 31% and 96%, respectively. By increasing the feed flow rate of tri-reforming side from 28,120 to 140,600 kmol h−1, methane conversion and H2 molar flow rate enhanced 40% and 28.64%, respectively.