Читать книгу Encyclopedia of Renewable Energy - James Speight G., James G. Speight - Страница 136

The Beavon sulfur removal process for the cleanup of Claus plant tail gas is a two-step process in which the sulfur contaminants are first catalytically hydrolyzed and/or hydrogenated to hydrogen sulfide and the hydrogen sulfide is then converted to elemental sulfur and recovered in a Stretford process unit.

In the process, which consists of two stages, the sulfur-containing compounds, such as hydrogen sulfide (H₂S), sulfur dioxide (SO₂), carbonyl sulfide (COS), and carbon disulfide (CS₂), are converted to sulfur in over 99.9% efficiency. In the first stage, the various sulfur compounds are either hydrogenated or hydrolyzed to give hydrogen sulfide, while in the second stage, the hydrogen sulfide is oxidized using the Stretford process to give good-quality elemental sulfur. This process can also be utilized in synthetic natural gas plants, natural gas processing, and other similar applications.

See also: Gas Cleaning, Gas Processing, Gas Treating, Tail Gas Cleaning, Wellman-Lord Process.