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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
The feedstock to the FCC conversion process usually is heavy gas oil (HGO), which is that portion of the petroleum (crude oil) that has an initial boiling-point temperature of 340 °C (644 °F) or higher, at atmospheric pressure, and that has an average molecular weight that ranges from about 200 to 600 or higher; heavy gas oil also is known as ...
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
The Shell–Paques process, also known by the trade name of Thiopaq O&G, [1] is a gas desulfurization technology for the removal of hydrogen sulfide from natural-, refinery-, synthesis- and biogas. The process was initially named after the Shell Oil and Paques purification companies. After accession of a dedicated joint venture by the founders ...
The "passivity" agreement FDIC wants BlackRock to sign is designed to assure bank regulators that the giant money manager will remain a "passive" owner of an FDIC-supervised bank and won’t exert ...
1990: Completion of the second heavy oil desulfurization unit. 2001: Planning began for the production of low-benzene, low-aromatic gasoline to improve air quality. 2008-2009: Construction of the cracked gasoline hydrodesulfurization unit and debottlenecking of the diesel unit to produce low-sulfur gasoline and diesel, enhancing product quality.