Process for the production of a coal-water suspension which is suitable for use in coal gasification under elevated pressure
A coal-water suspension containing 50 to 75 percent by weight coal is disclosed based on the weight of the suspension. The bulk of the coal has a particle size of 50 to 500 ..mu..m, the proportion of the particles have a diameter greater than 0.5 mm in the coal being less than 15 percent by weight and the particle size distribution curve of the coal in the Rosin-rammler particle size distribution grid according to DIN 4190 has a slope of greater than or equal to 1; a process for the production of such water-coal suspension which is suitable for use in coal gasification under elevated pressure by mixing lump coal with water directly, the water being added in a concentration just sufficient to form a water-coal dust suspension suitable for the gasification reaction and grinding the resultant suspension in a disc attrition mill, a toothed disc attrition mill or a toothed colloid mill.
- Assignee:
- Ruhrehemie Aktiengesellschaft (Germany, Federal Republic of)
- Patent Number(s):
- US 4526588
- OSTI ID:
- 6362594
- Resource Relation:
- Patent Priority Date: Priority date 6 May 1983, Germany, Federal Republic of (F.R. Germany); Other Information: PAT-APPL-490547
- Country of Publication:
- United States
- Language:
- English
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