Sasol Technology Proprietary Limited

Sasol-Lurgi Technology Company (Proprietary) Limited

Jacobus Andreas Stadler

Paul Smit Baumann

Eric Graham Van De Venter

Zbigniew Franciszek Matyja

A fixed bed coal gasifier () includes a coal gasification chamber with a coal lock above the chamber. A static coal distribution device inside the gasification chamber includes a hollow coal distributor which flares downwardly outwardly with a skirt depending downwardly from an inside of the coal distributor so that a gas collection zone is defined between the skirt and the coal distributor. The gasifier () has an ash discharge outlet () and a rotatable grate () above the outlet (). The rotatable grate () includes at least one upwardly projecting finger or disturbing formation () to disturb the ash bed formed in use above and around the grate ().

Fixed bed coal gasifier

A method of constructing an inner thermal lining or jacket of a jacketed gasifier having an outer shell with an opening allowing access to an interior of the gasifier, includes inserting jacket wall segments () into the gasifier interior through the opening, the jacket wall segments () each comprising an elongate jacket plate () with an annulus face () and a plurality of transversely extending longitudinally spaced stiffener formations () standing proud of the annulus face (). The jacket wall segments () are arranged side by side leaving an aperture or space between adjacent jacket plates. The stiffener formations () of adjacent spaced jacket wall segments are welded together through the aperture or space between said adjacent spaced jacket wall segments, and the apertures or spaces are closed with window plates.

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Secunda, South Africa

Jacobus Andreas Stadler