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Neuere Ergebnisse des Betriebes der Pilotanlage zum Hochtemperatur‐Winkler‐Verfahren
Author(s) -
Lambertz Johannes,
Schrader Lothar,
Teggers Hans
Publication year - 1986
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.330580804
Subject(s) - tonne , fluidized bed , pilot plant , coal , environmental science , waste management , atmospheric pressure , biomass (ecology) , pulp and paper industry , engineering , meteorology , geology , physics , oceanography
Recent results obtained on operation of a pilot plant for the high‐temperature Winkler process . Rheinische Braunkohlenwerke AG is developing the high‐temperature Winkler (HTW) process for gasification of coal and biomass in a fluidized bed. Preliminary studies in a lab‐scale plant at the Technical University of Aachen served as a basis for construction of a pilot plant with a throughput of 25 tonnes of dry lignite per day which went into operation in mid 1978. The gasification pressure was raised to 10 bar and the temperature to over 1000 °C, and the exiting dust was recycled to the fluidized bed, with the aim of significantly improving the specific performance relative to operation at atmospheric pressure. In view of experience gained in operation with both low‐ash and high‐ash lignite, the availability of the pilot plant could be increased to almost 75% and the performance greatly improved. Thus significantly higher values were achieved than by the atmospheric‐pressure Winkler process: 96% C‐gasification and almost 1 600 m 3 of synthesis gas per tonne of dry lignite; at over 7700 m 3 of synthesis gas per tonne of dry lignite per m 2 reactor cross‐section and per hour, the performance exceeds three times the former figure.