Browsing Faculty of Engineering by Subject "Ash flow temperature"

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Coal and coal ash characteristics to understand mineral transformations and slag formation

Van Dyk, J.C.; Waanders, F.B.; Benson, S.A.; Laumb, M.L. (Elsevier, 2009)

A knowledge of the composition and structure of minerals in coal is necessary in order to understand the mineral transformations and agglomerate or slag formation during combustion or gasification. Coal ash fusibility ...
Manipulation of the ash flow temperature and viscosity of a carbonaceous Sasol waste stream

Van Dyk, J.C.; Waanders, F.B.; Keyser, M.J.; Conradie, M. (Elsevier, 2010)

In 2001 Sasol investigated the possibility to convert a Sasol-Lurgi MK III fixed bed dry bottom coal gasifier at the former Sasolburg coal-to-liquids plant to a slagging gasification process and selected the Lurgi Multi ...
Viscosity predictions of the slag composition of gasified coal, utilizing FactSage equilibrium modelling

Van Dyk, J.C.; Waanders, F.B.; Benson, S.A.; Laumb, M.L.; Hack, K. (Elsevier, 2009)

Agglomeration of ash particles provides the desired porosity of the ash bed for adequate agent (steam and oxygen) flow and distribution, whereas excessive slagging inside the gasifier can cause channel burning, pressure ...