What is oxidative desulfurization?
What is oxidative desulfurization?
Abstract. Oxidative desulfurization, in which the aromatic sulfur containing compounds are oxidized to their analogical sulfones and subsequently extracted, has assured to be one of the exceedingly effective desulfurization processes for resulting ultra-low sulfur import fuels.
What is CoMo catalyst?
The CoMo hydrogenation catalysts converts any remaining sulfur species exiting the Claus section to H2S before entering the amine tail gas section for final treatment.
Does desulphurization efficiency depend on deoxidation?
Further the extent of desulphurization depends on extent of deoxidation. Aluminum killed steel can desulphurize more effectively than the steel where either Fe-Mn or Fe-Si is used to deoxidize the steel.
What is desulphurization in steel?
The principle of desulphurization is to transfer the sulfur dissolved in the liquid steel to a CaO-rich slag phase. This process is typically carried out in a ladle furnace (LF). The slag must be fully liquid (liquid fraction > 0.9). This is required for kinetic reasons.
How does a desulfurizer work?
Desulfurization is the process of using hydrogen gas to reduce the sulfur content in hydrocarbons thus reducing the emissions of sulfur oxides which are responsible for acid rain.
How do you get Sulphur out of diesel?
Hydrotreating is the most common method for removing sulfur from diesel fuel as of today. This process is very expensive. The cost of hydrotreating units depends on the performance and the required depth of processing, and in theory it can reach millions of US dollars.
How do you remove sulfur dioxide?
It is possible to scrub sulfur dioxide by using a cold solution of sodium sulfite; this forms a sodium hydrogen sulfite solution. By heating this solution it is possible to reverse the reaction to form sulfur dioxide and the sodium sulfite solution.
What is Como in chemistry?
Molecular FormulaCoMo.
How do you remove sulfur from iron?
There are four stages where sulphur can be removed: in the blast furnace (BF), during hot metal (HM) pretreatment, in the converter and during the secondary metallurgy (SM) treatment. For sulphur removal a low oxygen activity and a basic slag are required.
How do you remove Sulphur from ore?
While elemental sulfur is removed at the gas phase, a part of pyrite in the environment is degraded to sulfate form. This facilitates the removal of a part of sulfur in the ore through dissolution. Microwave heating ensures selective and rapid heating.
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