In this study sorption-enhanced steam methane reforming (SE-SMR) in fixed beds is investigated by means of 1D\ud
numerical modelling, and the model is validated with the data reported in the literature. Isothermal conditions\ud
(973 K) are considered, and the equilibrium between the carbonation and calcination stages is shifted by a\ud
pressure swing: 3.5 · 106 Pa and 1013 Pa, respectively. The results showed that under these operating conditions\ud
at least 8 reactors in parallel are required to continuously produce a high-purity stream of H2, and a separated\ud
stream of concentrated CO2. The average H2 purity is 0.92, whilst the average H2 yield and selectivity are\ud
2.9 molH2 molCH4−1 and 90%, respectively. A thermodynamic analysis was performed, which highlighted that,\ud
by using a portion of the produced H2 (about 0.4 molH2 molCH4−1), it is possible to fully cover heat and power\ud
demands of the process, making it completely energy self-sufficient. In the case when the proposed SE-SMR is\ud
integrated with a solid oxide fuel cell, net power generation at the scale of∼950 kWel can be achieved with a net\ud
efficiency of the entire system of 51%, with the important feature that CO2 is concentrated
Sorption-enhanced steam methane reforming (SE-SMR) is a promising alternative for H2 production with inherent CO2 capture. This study evaluates the techno-economic performance of SE-SMR in a network of fixed beds and its integration with a solid oxide fuel cell (SE-SMR-SOFC) for power generation. The analysis revealed that both proposed systems are characterised by better economic performance than the reference systems. In particular, for SE-SMR the levelised cost of hydrogen is 1.6 €⋅kg−1 and the cost of CO2 avoided is 29.9 €⋅tCO2−1 (2.4 €⋅kg−1 and 50 €⋅tCO2−1, respectively, for SMR with CO2 capture) while for SE-SMR-SOFC the levelised cost of electricity is 0.078 €⋅kWh−1 and the cost of CO2 avoided is 36.9 €⋅tCO2−1 (0.080 €⋅kWh−1 and 80 €⋅tCO2−1, respectively, for natural gas-fired power plant with carbon capture). The sensitivity analysis showed that the specific cost of fuel and the capital cost of fuel cell mainly affect the economic performance of SE-SMR and SE-SMR-SOFC, respectively. The daily revenue of the SE-SMR-SOFC system is higher than that of the natural gas-fired power plant if the difference between the carbon tax and the CO2 transport and storage cost is > 6 €⋅tCO2−1
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.