The basis of reactions for thermal cracking of raw gas containing tar in coke production
Changes became necessary in the by-product recovery of coke when its conventional by-products - raw gas, raw tar and raw benzene - lost their market appeal. The possibilities of thermal or catalytic cracking reactions of the raw gas in the presence of steam, aiming at the complete conversion of higher, condensable hydrocarbons into gaseous products, were investigated. The expensive by-product recovery plant is thus avoided and coke making becomes more profitable. Results show that the thermal cracking of hydrocarbons in a coke oven raw gas, especially the higher hydrocarbons of benzene and tar, should be possible at temperatures of 1300ºC and higher. The cracking of hydrocarbons, however, always produces large amounts of soot. The practicability of mixing the produced soot with the coal should also be examined.
Bibliographic Reference: EUR 17942 DE (1999), 67pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-6348-4
Record Number: 199911263 / Last updated on: 1999-08-27
Original language: de
Available languages: de