Comparison of Heavy Fuel-Oil Fractions Produced by Semicoking of Kukersite Shale in Kiviter and Petroter Systems

By chromatography and mass spectroscopy and also by IR spectroscopy, the chemical composition of industrial heavy fuel-oil fractions from the semicoking of kukersite shale in a Kiviter gas generator and in a Petroter system based on hot ash is investigated. The content of different chemical groups in the samples is compared. The content of hydrocarbons is higher by a factor of about 1.5 in the fuel oil from the Kiviter system than in that from the Peteroter-1 system, while the content of oxygen compounds is lower by a factor of 1.12. The content of nitrogen compounds is approximately the same, while the content of sulfur compounds is higher for the Petroter-1 system. The heavy fuel-oil fractions are used in commercial furnace oils with up to 0.8% sulfur content: VKG C, VKG-D, VKGD-1, and VKGD-2. The resulting fuel oils are compatible with marine fuels.