Petroleum Coke
Petroleum coke, more often named petcoke, is increasingly considered as an attractive feedstock for gasification, in particular as it becomes more and more difficult to fire this high-sulfur material as a supplemental fuel in coal-fired power stations. Apart from the feed systems that are similar to those for pulverized coal, the behavior of petcoke in gasifiers is very similar to that of heavy oil fractions. When gasified in certain entrained-flow slagging coal gasifiers, it is essential to add ash, because otherwise the build-up of a proper slag layer on the membrane wall will not be successful (Mahagaokar and Hauser 1994). In the Elcogas plant in Puertollano, Spain petcoke is processed together with (high-ash) coal (Sendin 1994).
