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One of the major operational difficulties encountered with carbonising coals is the development of transient wall pressures during the carbonisation cycle. In order to establish which coking blends are likely to cause damage, many laboratory and pilot-scale tests have been designed. The present report reviews the merits and disadvantages of several of these tests and concludes that there is a need to develop a new small-scale and relatively rapid test for the measurement/prediction of coking pressure. Accordingly, a new small-scale coke oven has been designed and constructed. Many coals were tested in this mini coke-oven and results are compared with corresponding data from conventional, 300 kg capacity, movable-wall oven tests. Although the objective of developing a small-scale test for rapidly assessing the likelihood of coals to generate dangerously high coking pressures in commercial use has been achieved, so that results are available within 4-5 hours of the commencement of the test, it is recommended that the test be restricted to the screening of candidate coals and blends, with final assessment being made in a conventional (e.g. 300 kg capacity) movable-wall oven.

Additional information

Authors: BRITISH COAL CORPORATION, Coal Research Establishment, Cheltenham (GB)
Bibliographic Reference: EUR 14067 EN (1992) 105 pp., MF, ECU 8, blow-up copy ECU 16.50
Availability: (2)
Record Number: 199210564 / Last updated on: 1994-12-02
Original language: en
Available languages: en
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