Portal de Periódicos da CAPES

THE VOLUMES OF SPENT OIL SHALE FROM ESTONIAN OIL-SHALE PROCESSING UNITS IN 1921–2002; pp. 345–357

2005; Estonian Academy Publishers; Volume: 22; Issue: 3 Linguagem: Inglês

10.3176/oil.2005.3.08

1736-7492

R Veski,

Petroleum Processing and Analysis

It is suggested that there are about 86 million t (at Kiviõli 12.5, Kohtla-Järve 70.7 and Narva 3.0 million t) oil-shale semi-coke and coke deposited in the Estonian landfills since 1921.However, there is no explanation how these volumes were calculated and no data about the volumes of semi-coke formed at Vanamõisa, Kohtla-Nõmme and Sillamäe.According to the calculations based on operation of processing units, 74.7% of dry spent oil shale deposited in Estonia is located at Kohtla-Järve.These deposits (83.22 million t) consist of semi-coke and coke, 48.75 and 34.47, respectively.At Kiviõli mostly semi-coke is deposited -19.2 million t (17.2%).Ash-like spent shale is deposited at Narva (4.34 million t, 3.9%), the landfills of other locations at Vanamõisa, Kohtla-Nõmme and Sillamäe hold 2.77, 1.09 and 0.7 million t of SC (2.5, 1.0 and 0.7%), respectively.This paper presents a method for calculation the volume of spent shale.