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Assessing the catalytic effect of coal ash constituents on the CO2 gasification rate of high ash, South African coal
(Elsevier, 2011)
The catalytic effect of inorganic species, within the ash, on the CO2 gasification of three South African coals containing similar carbon-structural properties (elemental, structural and petrographical properties) was ...
Dataset on the carbon dioxide, methane and nitrogen high-pressure sorption properties of South African bituminous coals
(Elsevier, 2019)
The dataset presented in this article supplements the result and information published in the report “The carbon dioxide, methane and nitrogen high-pressure sorption properties of South African bituminous coals” (Okolo et ...
Reactor technology options for distributed hydrogen generation via ammonia decomposition: a review
(Elsevier, 2013)
Hydrogen (H2) fuel obtained via thermo-catalytic ammonia (NH3) decomposition is rapidly
attracting considerable interest for portable and distributed power generation systems.
Consequently, a variety of reactor technologies ...
Improved reactivity of large coal particles by K2CO3 addition during steam gasification
(Elsevier, 2013)
In this study, the excess solution impregnation method was used to impregnate large coal particles (5 and
10 mm) with K2CO3, and the effect of the additive on steam gasification reactivity was investigated. A washed
bituminous, ...
X-ray diffraction parameters and reaction rate modeling for gasification and combustion of chars derived from inertinite-rich coals
(Elsevier, 2013)
An investigation was undertaken to determine the effect of carbon structural properties on the reactivity
of chars derived from inertinite-rich coal. The structures of chars were characterized by X-ray diffraction
and ...
Hydrogen production from ammonia decomposition over a commercial Ru/Al2O3 catalyst in a microchannel reactor: experimental validation and CFD simulation
(Elsevier, 2016)
In this work, an integrated experimental and CFD modelling technique was used to evaluate a microchannel reactor producing hydrogen from ammonia decomposition using a commercial Ru/Al2O3 catalyst. The microchannel reactor ...
A modelling evaluation of an ammonia-fuelled microchannel reformer for hydrogen generation
(Elsevier, 2014)
Hydrogen production from an ammonia-fuelled microchannel reactor is simulated in a three-dimensional (3D) model implemented via Comsol Multiphysics™. The work described in this paper endeavours to obtain a mathematical ...
Reactivity study of fine discard coal agglomerates
(Elsevier, 2015)
In this laboratory study thermo-gravimetric analyses were conducted to determine the influence of the addition of an alkaline metal catalyst (K2CO3 incorporated into a fine discard coal agglomerate mixture by physical ...
Performance evaluation of a high-throughput microchannel reactor for ammonia decomposition over a commercial Ru-based catalyst
(Elsevier, 2015)
In this work, the prospect of producing hydrogen (H2) via ammonia (NH3) decomposition was evaluated in an experimental stand-alone microchannel reactor wash-coated with a commercial Ruthenium-based catalyst. The reactor ...
Pore development during gasification of South African inertinite-rich chars evaluated using small angle X-ray scattering
(Elsevier, 2015)
Pore development arising from steam and CO2 gasification of a char, prepared from an inertinite-rich Witbank Seam 4 coal, was investigated using small angle X-ray scattering. The char, ∼75 μm, was gasified to specific ...