MODERN TECHNOLOGIES AND EQUIPMENT FOR UTILIZATION OF FINE UNMARKETABLE FRACTIONS OF PETROLEUM COKE (review)
The analytical review of modern scientific, technical and patent literature on methods and devices for utilization of coke fines is presented. A possible scope of application of briquetted and pelletized fine fractions of petroleum coke is identified. It is proved that the choice of technology and equipment for briquetting is to a large extent determined by the processes in which these briquettes are supposed to be used. A relatively expensive technology for obtaining refined briquettes that can be used to produce graphite electrodes for steelmaking furnaces, units for the production of aluminum, and grounding electrodes is described. It is shown that the most promising disposal of petroleum coke fines is obtaining inexpensive fuel briquettes. The methods of removal or binding of sulfur contained in petcoke for the purpose of obtaining “smokeless” briquettes are considered. It is shown that in the case of using briquettes in kilns calcinating cement and some other construction materials a preliminary sulfur removal is not required, which makes the use of this fuel type particularly cost-effective.