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Hydrodesulfurization or hydrodesulphurisation (Commonwealth English; see spelling differences) (HDS), also called hydrotreatment or hydrotreating, is a catalytic chemical process widely used to remove sulfur (S) from natural gas and from refined petroleum products, such as gasoline or petrol, jet fuel, kerosene, diesel fuel, and fuel oils.
In this sense, the European Union has taken steps to decrease the sulfur content in diesel below 10 ppm, [6] while the US has made efforts to restrict the sulfur content in diesel and gasoline to a maximum of 15 ppm. [7] The reduction of sulfur compounds in oil fuels can be achieved by a process named desulfurization. [8]
Desulfurization or desulphurisation is a chemical process for the removal of sulfur from a material. This involves either the removal of sulfur from a molecule (e.g. A=S → A:) or the removal of sulfur compounds from a mixture such as oil refinery streams. [1] Example of desulfurization of thioacetals using Raney nickel
Hydrogen sulfide produced, for example, in the hydro-desulfurization of refinery naphthas and other petroleum oils, is converted to sulfur in Claus plants. [2] The reaction proceeds in two steps: 2 H 2 S + 3 O 2 → 2 SO 2 + 2 H 2 O 4 H 2 S + 2 SO 2 → 3 S 2 + 4 H 2 O
A typical fluid catalytic cracking unit in a petroleum refinery. Fluid catalytic cracking (FCC) is the conversion process used in petroleum refineries to convert the high-boiling point, high-molecular weight hydrocarbon fractions of petroleum (crude oils) into gasoline, alkene gases, and other petroleum products.
The Dangote Refinery is an oil refinery owned by Dangote Group that was inaugurated on 22 May 2023 [1] in Lekki, Nigeria.When fully operational, it is expected to have the capacity to process about 650,000 barrels of crude oil per day, making it the largest single-train refinery in the world.
Summer is the best time of year for seeing the Milky Way, but onlookers will need to travel to a dark area away from human-made light pollution to see the dim glow of the galaxy. Experts recommend ...
Flue gas desulfurization scrubbers have been applied to combustion units firing coal and oil that range in size from 5 MW to 1,500 MW. Scottish Power are spending £400 million installing FGD at Longannet power station, which has a capacity of over 2,000 MW. Dry scrubbers and spray scrubbers have generally been applied to units smaller than 300 MW.