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- W3134266049 endingPage "105306" @default.
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- W3134266049 abstract "The pyrolysis char, produced in an industrial scale retort process, was subjected to steam activation under atmospheric pressure to assess carbon conversion as a factor of variations in temperature (750–1050 °C), concentration of activation agent (33.3–66.7 vol% steam/N2 mixture), and reaction time (0.5–4 h). The BET surface area was determined using N2 adsorption and compare against carbon conversion. The steam gasification reaction was shown to be kinetically controlled under the conditions studied. The behaviour of the solid-gas gasification reaction rate was modelled using non-catalytic heterogeneous models: Dutta model, random pore model, shrinking core model, and volumetric model. The experimental data were fit best by the volumetric model, indicating that carbon-steam gasification reactions throughout the particle were uniform and the gasification reaction was not influenced by the structure of the pores. The pre-exponential factor, activation energy and reaction order of the volumetric model were 5.42 × 10−3 s−1, 114 kJ mol−1 and 0.6, respectively, determined by non-linear least-squares fitting of the model to the experimental data." @default.
- W3134266049 created "2021-03-15" @default.
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- W3134266049 date "2021-08-01" @default.
- W3134266049 modified "2023-10-10" @default.
- W3134266049 title "An experimental study of gasification kinetics during steam activation of a spent tyre pyrolysis char" @default.
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- W3134266049 doi "https://doi.org/10.1016/j.jece.2021.105306" @default.
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