Misplaced Pages

Desulfurization

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
(Redirected from Desulfurisation) Removal of sulfur from a substance See also: Raney nickel § Applications in organic synthesis

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.

Chemical reaction: Thioacetal breaks into ethane, nickel sulfide and a hydrocarbon under the action of hydrogen and Raney nickel.
Example of desulfurization of thioacetals using Raney nickel

These processes are of great industrial and environmental importance as they provide the bulk of sulfur used in industry (Claus process and Contact process), sulfur-free compounds that could otherwise not be used in a great number of catalytic processes, and also reduce the release of harmful sulfur compounds into the environment, particularly sulfur dioxide (SO2) which leads to acid rain.

Processes used for desulfurization include hydrodesulfurization, the SNOX process and the wet sulfuric acid process (WSA process).

See also

References

  1. Babich, I (April 2003). "Science and technology of novel processes for deep desulfurization of oil refinery streams: a review". Fuel. 82 (6): 607–631. Bibcode:2003Fuel...82..607B. doi:10.1016/S0016-2361(02)00324-1.


Stub icon

This chemical process-related article is a stub. You can help Misplaced Pages by expanding it.

Categories: