Читать книгу Encyclopedia of Renewable Energy - James Speight G., James G. Speight - Страница 236

Bioscrubber systems have been used for hydrogen sulfide removal from gas streams. The bioscrubber involves a two-stage process with an absorption tower and a bioreactor, in which the sulfide is oxidized to sulfur and/or sulfate. For example, the Shell-Paques THIOPAQ® process employs alkaline conditions to produce elemental sulfur. In the first step of this process, the hydrogen sulfide is absorbed into an alkaline solution by reaction with hydroxyl and bicarbonate ions. In the second step, the hydrosulfide is oxidized to elemental sulfur under oxygen-limiting conditions. Thus:

See also: Biofiltration, Bio-oxidation, Gas Cleaning – Biological Methods Gas Processing, Gas Treating.