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Volatile trace element behaviour in the Sasol® fixed-bed dry-bottom (FBDB)™ gasifier treating coals of different rank
(Elsevier, 2011)
Trace element simulation and validation of model predictions for the elements Hg, As, Se, Cd and Pb have recently been undertaken for the Sasol® FBDB™ gasification process operating on lump coal. The validation was conducted ...
Identification of reaction zones in a commercial Sasol-Lurgi fixed bed dry bottom gasifier operating on North Dakota lignite
(Elsevier, 2011)
The Sasol-Lurgi fixed bed dry bottom gasification technology has the biggest market share in the world with 101 gasifiers in operation. To be able to further improve the technology and also to optimise the operating plants, ...
Destabilization dynamics of clay and acid-free polymers of ferric and magnesium salts in AMD without pH adjustment
(IWA Publishing, 2016)
The physicochemical treatment was employed to treat acid mine drainage (AMD) in the removal of turbid materials using clay only (exp A) and a combination of clay, FeCl3 and Mg(OH)2 (exp B) to form a polymer. A 5 g sample ...
An understanding of lump coal physical property behaviour (density and particle size effects) impacting on a commercial-scale Sasol-Lurgi FBDB gasifier
(Elsevier, 2008)
Thermal processes which utilize coarse coal, such as fixed-bed gasification and chain grate stoker boilers, are dependant on a stable particle size for stable operation. During coarse coal utilization, thermal fragmentation ...
Physical property behaviour of North Dakota lignite in an oxygen/steam blown moving bed gasifier
(Elsevier, 2013)
In this study lignite originating from North Dakota (USA) was thermally treated in an oxygen/steam blown
commercial-scale moving bed gasifier operating on lump coal at the Dakota Gasification Company (DGC)
in order to ...
The impact of particle size and maceral segregation on char formation in a packed bed combustion unit
(ELSEVIER, 2013)
Highveld parent coal was crushed into three size fractions, namely: 5 mm–75 mm, 5 mm–53 mm, and
5–37.5 mm. The crushed samples were subjected as feed coals to heating in a packed-bed reactor to
investigate the influence ...
Trace element behaviour in the Sasol-Lurgi MK IV FBDB gasifier. Part 1. The volatile elements: Hg, As, Se, Cd and Pb
(Elsevier, 2008)
Coal-fired power and heat production are the largest single source of Hg in the atmosphere, and in March 2005, the US-EPA ruled regarding Hg reduction from coal utilization in the USA. Appropriate Hg pollution control of ...
Investigation of lump coal agglomeration in a non-pressurized reactor
(Elsevier, 2010)
The overall aim of this research was to investigate the agglomeration phenomenon of large coal particles (8 cm3 blocks) of three South African non-swelling coals (based on FSI) under various laboratory conditions. The coals ...
An understanding of the behaviour of a number of element phases impacting on a commercial-scale Sasol-Lurgi FBDB gasifier
(Elsevier, 2008)
Chemical properties of coal which impact on gasification performance relate to those processes which do effect a change in chemical constitution, these in turn may lead to changes in physical properties such as particle ...
Pipe reactor gasification studies of a south african bituminous coal blend. Part 1. Carbon and volatile matter behaviour as function of feed coal particle size reduction
(Elsevier, 2009)
The Sasol-Lurgi fixed-bed dry-bottom (FBDB) MKIV gasifiers are proven to be robust as far as acceptable coal properties are concerned, in particular its ability to accommodate a range of particle size distributions (PSD) ...