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Abstract

Direct post-cracking of volatile matter from coal carbonisation is studied at laboratory, pilot and full scale. The effects of process variables ( temperature, residence time, coal composition) on the yields and the chemical composition of products are investigated. The cracking of volatile matter is measured by severity indices for each product: - H(2)/CnHm and % CO for the gas - Benzene/benzene + toluene + xylenes for the benzols - selectives extraction, naphthalene/Me naphthalene, different types of THF-I for the tars - analysis of carbon deposits (carbon black, pyrolytic carbon) These indices are similar to the severity indices used in the oil industry (naphtha - steam cracking) and can characterise the cracking level of volatile matter in the coke oven.

Additional information

Authors: CERCHAR CERCHAR, CENTRE DE PYROLYSE DE MARIENAU, FORBACH (FR), CERCHAR, CENTRE DE PYROLYSE DE MARIENAU, FORBACH (FR)
Bibliographic Reference: EUR 12352 FR (1990) 105 PP., MF, ECU 8, BLOW-UP COPY ECU 22.50 THE OFFICE FOR OFFICIAL PUBLICATIONS OF THE EUROPEAN COMMUNITIES, L-2985 LUXEMBOURG
Availability: Can be ordered online
Record Number: 1989128061300 / Last updated on: 1990-11-09
Category: PUBLICATION
Available languages: fr