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- W2753646712 abstract "Abstract Sorption-Enhanced Steam Methane Reforming (SE-SMR) represents a novel and energy-efficient hydrogen production route with in situ CO 2 capture. A comprehensive Eulerian-Eulerian CFD model of SE-SMR in a bubbling fluidized bed reactor, that uses dolomite and other solid sorbents as CO 2 acceptors, has been developed. Kinetic models for steam methane reforming and CO 2 capture have been implemented. In addition, a new particle drag model has been derived from customary formulas in order to reduce the computational cost. Two different scales have been studied: laboratory and semi-industrial. Results of the computation are in good agreement with literature data at both scales (SMR H 2 = 76–78% vs. SE-SMR H 2 = 90–96% dry basis mole fraction). Numerical simulations demonstrate that CO 2 capture is the kinetic limiting step of the SE-SMR mechanism, as compared to steam methane reforming. Temperature is shown to be the key parameter of the SE-SMR chemical process at large scales, and an optimal T = 625 °C is estimated. Additionally, compared with the classical approaches, the new drag model provides seemingly realistic predictions within the multiple bubble regime, at a low computational cost and using a coarse grid. This represents a further advance for the scaling-up of the reactor to industrial sizes based on numerical simulation." @default.
- W2753646712 created "2017-09-15" @default.
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- W2753646712 date "2017-12-01" @default.
- W2753646712 modified "2023-10-17" @default.
- W2753646712 title "Computationally efficient CFD model for scale-up of bubbling fluidized bed reactors applied to sorption-enhanced steam methane reforming" @default.
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- W2753646712 doi "https://doi.org/10.1016/j.fuproc.2017.07.003" @default.
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