Description of the problem
Since January 2009 in Europe the new regulations have been implemented which indicate sulfur content in automotive fuels of up to 10 ppm.
Hydrotreating is the most widely used process for the removal of sulfur from petroleum . Hydrotreating converts sulfur in sulfur containing compounds to hydrogen sulfide on special catalysts in a hydrogen atmosphere at high pressure and temperature. Hydrotreating has a number of significant limitations:
Taking into account the above, erection of hydrotreating units (desulphurization plants) is not economically and technologically feasible for average and small-scale production plants, which makes alternative desulphurization process very important.
Technology of catalytic desulfurization Thionol - a combination of oxidation sulfur-containing compounds to sulfones, followed by adsorption.
The process of desulfurization of hydrocarbons contains two stages. The first stage is a liquid phase oxidation of sulfur-containing compounds on the catalyst THIONOL. The second stage is adsorption of sulfur compounds and the regeneration of the sorbent.
The oxidation and the adsorption takes place at ambient temperature in the range from 20 to 40 C and the pressure to 4 bar.
The main parameters of the desulfurization technology THIONOL:
The advantage of catalytic desulfurization THIONOL its technological flexibility and easy adaptation, the process can be successfully run in any fragment of production line replacing existing units or simply complement refinery desulfurization process.