Community Research and Development Information Service - CORDIS

Abstract

Clean and efficient coal technology is essential if coal is to remain in the market for power generation. The Air Blown Gasification Cycle (ABGC) developed by British Coal Technology Development Division (CTDD) addresses this need to minimize emissions of gaseous effluent and solid waste from the coal power cycle. Developing the ABGC required the partners to obtain information on reaction mechanisms which form pollutants, create a mathematical model which predicts gasifier performance/emissions and set up a rig operation which produced typical emissions/solid waste to validate the model. Characteristics of burning coal under typical gasifier pressures and temperatures were evaluated for the model. These observations can then be used to modify the gasifier model and the predicted performances of coals during burning. Two experimental runs under atmospheric and pressurized gasifier conditions were performed. Of the many findings, it is reported that burning coal particles at a temperature of 950oC correlated well with the BS1016 volatile matter measurements. Also, the effects of H2 and CO inhibited the gasification reactions in steam and CO2 respectively. H2 was found to inhibit the rate of reaction and in some cases to prevent full carbon conversion being achieved.

Additional information

Authors: BRITISH COAL CORPORATION,
Bibliographic Reference: EUR 17925 EN (1998) 132pp.
Availability: Available from OOPEC Sales agents
ISBN: 92-828-46123-X
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