Alternative Methods for the Removal of Sulfur Compounds from Petroleum Fractions

Resumo

Alternative methods are examined for the removal of sulfur compounds from hydrocarbon fractions in order to meet the strict specifications for sulfur content and reduce the sulfur content in petroleum raw material. The advantages of such alternative sulfur removal methods include low temperature and pressure, no need for introducing hydrogen, and feasibility for small refineries. Two types of methods were examined. One type involves the use of adsorbents, selective solvents, oxidizing agents, and biodesulfilrization. The other group involves wave technologies based on electric pulse effects, cavitation, hydrowave, magnetic, and electromagnetic effects as well as combined wave technologies. The most effective methods for desulfurization yield fuel components corresponding to ecology class 5.