Zum Stand der Kohlevergasung

Abstract

Gasification of coal – a status report. On the basis of industrially available conventional coal gasification processes (Winkler, Koppers‐Totzek, and Lurgi pressure gasification) the paper describes developmental trends in such processes. Elevated operating pressure is a common feature of all new processes, thus opening up new applications. An economic incentive to the development of new gasification processes also comes from combinations with new technologies, e. g. with direct reduction. Moreover, an advanced version of the high‐temperature Winkler process is described and evaluated in comparison with conventional commercial processes. Apart from processes conducted above ground, recent developments also include thoughts about underground gasification.