2023
DOI: 10.1021/acssuschemeng.2c07316
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Process Simulations of High-Purity and Renewable Clean H2 Production by Sorption Enhanced Steam Reforming of Biogas

Abstract: Renewable clean H2 has a very promising potential for the decarbonization of energy systems. Sorption enhanced steam reforming (SESR) is a novel process that combines the steam reforming reaction and the simultaneous CO2 removal by a solid sorbent, such as CaO, which significantly enhances hydrogen generation, enabling high-purity H2 production. The CO2 sorption reaction (carbonation) is exothermic, but the sorbent regeneration by calcination is highly endothermic, which requires extra energy. Biogas is one … Show more

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Cited by 11 publications
(1 citation statement)
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“…Although these benefits are promising, SESR requires a calcination step to regenerate the sorbent, which is an energy intensive operation. , Different alternatives have been approached to deal with this calcination step, such as burning part of the feed in the calciner, or part of the H 2 produced, using air or pure oxygen as oxidizing agents . There are also other process approaches, such as the chemical looping, where the use of an oxygen transfer material allows reducing the energy requirements. , For example, Spragg et al compared the bio-oil SESR with the bio-oil sorption enhanced chemical looping from a thermodynamic point of view, concluding that the latter involves a more favorable energy balance, but at the expense of a lower H 2 production due to the oxidation of part of the feedstock.…”
Section: Introductionmentioning
confidence: 99%
“…Although these benefits are promising, SESR requires a calcination step to regenerate the sorbent, which is an energy intensive operation. , Different alternatives have been approached to deal with this calcination step, such as burning part of the feed in the calciner, or part of the H 2 produced, using air or pure oxygen as oxidizing agents . There are also other process approaches, such as the chemical looping, where the use of an oxygen transfer material allows reducing the energy requirements. , For example, Spragg et al compared the bio-oil SESR with the bio-oil sorption enhanced chemical looping from a thermodynamic point of view, concluding that the latter involves a more favorable energy balance, but at the expense of a lower H 2 production due to the oxidation of part of the feedstock.…”
Section: Introductionmentioning
confidence: 99%