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Desulfurization or desulphurisation is a chemical process for the removal of sulfur from a material. [1] The term usually refers to the removal of sulfur from a molecule or a material by hydrogenolysis: [2] R 2 S + 2 H 2 → 2RH + H 2 S. Hydrogen is the ultimate sulfur acceptor. As applied to oil refinery streams, the conversion is known as ...
A new, emerging flue gas desulfurization technology has been described by the IAEA. [16] It is a radiation technology where an intense beam of electrons is fired into the flue gas at the same time as ammonia is added to the gas. The Chendu power plant in China started up such a flue gas desulfurization unit on a 100 MW scale in 1998.
Desulfurization is achieved by having a high lime concentration in the slag and a low oxygen activity in the metal bath. S (bath) + CaO (slag) → CaS (slag) + O (bath) So, additions of lime are added to dilute sulfur in the metal bath. Also, aluminium or silicon may be added to remove oxygen.
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.
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In either case, the aim is to produce nitrogen gas, rather than nitrogen oxides. In the United States, there is a rapid deployment of technologies to remove mercury from flue gas—typically by absorption on sorbents or by capture in inert solids as part of the flue-gas desulfurization product. Such scrubbing can lead to meaningful recovery of ...
U.S. President Donald Trump stripped Secret Service protection on Tuesday from his former national security adviser, John Bolton, who became the target of an alleged Iranian murder plot after he ...
The desulfurization rate for the wild-type 4S pathway enzymes is low when compared to the rate that needs to be achieved for a viable application in the industrial sector. An increase of 500-fold on the overall rate of the pathway is the required improvement for an efficient application of this biodesulfurization method.