Abstract
Ethanol steam reforming (ESR) has recently appeared as a prominent, sustainable and green technology for large-scale hydrogen production as this process can convert sustainable ethanol feedstock originated from biomass to a standalone hydrogen fuel with great energy capacity about 120.7kJ/g. Although hydrogen generated from ESR could be efficiently implemented for fossil fuel replacement, the heterogeneous catalytic ESR encounters several challenges associated with active metal sintering and carbonaceous deposition inducing catalyst deactivation. Hence the rigorous research on catalyst design, operation conditions, and mechanistic pathways are vital for enhancing catalyst stability, process optimization, kinetic modeling, and reactor design. This chapter summarizes the recent advances in catalytic ESR process for achieving high hydrogen yield and better ethanol conversion via catalyst design (including the suitable selection of active metals, supports, and promoters) and the adjustment of process variables, namely, temperature, gas hourly space velocity, and. Besides, ESR mechanistic routes and the corresponding fundamentally derived kinetic models for estimating the associated kinetic parameters are included in this chapter.
Published Version
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