EFFICIENCY OF PROCESSING OIL SHALE IN 1000 TON-PER-DAY RETORT USING DIFFERENT ARRANGEMENTS
OF OUTLETS FOR OILVAPOURS
V. YEFIMOV
S. DOILOV
Tallinn Technical University,
Oil Shale Research Institute
12 Järveküla St., Kohtla-Järve
30328 Estonia
| Large experience of 1000 ton-per-day retort operation has demonstrated that ash content of heavy oil decreased approximately from 10 to 6 % due to take-off of oil vapours through four (instead of routine two) gas outlets. Therefore, dust carry-over from the retort was reduced 1.5-2.0 times, and oil yield increased from 14-15 to 16-17 % (from 65-70 to 75-80 % of the Fischer assay oil). At the same time, operation of the 1000 ton-per-day retort became more stable. |