Catalytic activity of coal minerals in water vapour gasification of coal

摘要: Abstract Possible catalytic influences of coal minerals during water vapour gasification have been studied by kinetic measurements and microanalytical methods. A bituminous without with various pretreatments also model chars synthesized from PVC PVC-sulphur mixtures were used as raw materials. Kinetic performed in a fixed-bed flow reactor at pressures between 0.2 2 MPa temperatures 880 to 1010 °C using hydrogen/water agents. It was found that beyond can be decisively catalysed the iron constituent mineral matter. Preconditions are elimination inorganic sulphur reducing atmosphere stabilize elemental iron. The optimum pressure is range 0.5 1 MPa. Scanning electron microscopy probe microanalysis confirm starts soon free sulphur. organic does not prevent but lowers activity