International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The paper presents a review of the literature relative to the flue gas desulfurization methods for sulphuric acid (H2SO4) manufacturing. The covered topics include wet and dry methods. Particular attention has been paid to the desulfurization of the flue gas from the copper smelting industry that can lead to a generation of SOx rich streams resulting in high profitability of H2SO4 production.

The study deals with preparation of carbon/SiO2 based natural composite material by slow pyrolysis of rice husks at 480° C. The phase composition, microstructure and morphology of the solid pyrolysis residue were investigated by XRD, FTIR spectrometry, thermal analysis, Hg-porosimetry, B.E.T. specific surface area and SEM-EDS. The sorption capacity of the pyrolyzed rice husks (PRH) upon adsorption of oil and oil products spills was determined. The obtained results revealed that PRH possess high sorption ability toward to gasoline, diesel, motor oil, light and heavy crude oil, in the range of 3.7 to 9.2 kg.kg-1. The adsorbent is characterized with hydrophobicity and buy-effect 90% more 10 days. PRH were investigated also as material for deep adsorption removal of thiophene from model fuel under batch mode. It was found that adsorption of 92% of the aromatic sulfur compound from the model fuel was achieved.