Search
Now showing items 1-10 of 41
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 ...
Properties of high ash coal-char particles derived from inertinite-rich coal. II. Gasification kinetics with carbon dioxide
(Elsevier Science Limited, 2008)
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 ...
The influence of the degree of cross-linking on the absorption properties of chitosan beads
(Elsevier Science Limited, 2008)
A kinetic expression for the pyrolytic decomposition of polyterafluoroethylene
(Elsevier, 2008)
Despite the fact that the thermal decomposition of polytetrafluoroethylene has been extensively studied over the past six decades, some inconsistencies regarding the kinetic parameters, e.g. the order of the reaction, ...
The adsorption of copper in a packed-bed of chitosan beads: Modeling, multiple adsorption and regeneration
(Elsevier, 2009)
In this study, exoskeletons of Cape rock lobsters were used as raw material in the preparation of chitin that was successively deacetylated to chitosan flakes. The chitosan flakes were modified into chitosan beads and the ...