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Hydrierende Vergasung von Kohle – Neuere Betriebsergebnisse
Author(s) -
Fladerer Rolf,
Schrader Lothar
Publication year - 1982
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.330541004
Subject(s) - pilot plant , coal , wood gas generator , environmental science , waste management , fluidized bed , raw material , tonne , coal gasification , methane , integrated gasification combined cycle , pulp and paper industry , syngas , engineering , hydrogen , chemistry , organic chemistry
Hydrogasification of coal – recent operational results . The Rheinische Braunkohlenwerke AG has built and has been operating a semi‐technical pilot plant for hydrogasification of coal in a fluidized bed. The objective is to develop a coal gasification process with hydrogen for producing directly substitute natural gas. Between 1976 and 1981, the semitechnical pilot plant having a capacity of 100 kg C/h was operated for about 22,900 h under test conditions, more than 9,500 h of which were under gasification conditions. During this time, approximately 1,400 metric tons of dry coal were gasified. The longest coherent operational phase under gasification conditions was 748 h in which 86.4 metric tons of dry lignite were gasified. Carbon gasification rates up to 82% and methane contents in the dry raw gas (free of N 2 ) up to 48 vol.‐% were obtained. A detailed evaluation of the test results provided information on the influence of additional parameters on the efficiency dates of the gasifier and a considerable refining of the results obtained previously. Moreover, several components were tested for which no operational experience had previously been gained; these were newly developed devices, e. g. the inclined tube for feeding coal into the fluidized bed. Within the framework of scale‐up work to large‐scale coal gasification plants, a pilot plant having a capacity of approximately 6 t C/h will be commissioned in late 1982.