INVESTIGATION AND PILOT-SCALE PROCESSING OF RUSSIAN COALS  
V. YEFIMOV 
I. PULEMYOTOV 
S. DOILOV 
Oil Shale Research Institute 
12 Järveküla St., Kohtla-Järve 
 
30198 Estonia 
 
| Russian coals of various grades were processed in a pilot-scale retort. Semicokes obtained from this process were characterized by high specific heat of combustion (26-31 MJ/kg), low sulfur (0.5-0.9 %) and low volatile content (1.4-1.9 %). It was shown that long-flame coals and slightly-caking coals are desirable raw materials for a waste-free process with the aim of producing high quality low sulfur liquid and solid fuels. |