Reactor system and method thereof for degassing sulfur

A method of degassing hydrogen sulfide in a liquid sulfur, the method comprising:

• providing through a first inlet of a reactor a first stream including the liquid sulfur, wherein the first stream comprises no more than about 600 ppm, by weight, hydrogen sulfide;
• providing through a second inlet of the reactor a second stream of oxygen-containing gas with about 0.0001% to about 2%, by weight, nitrogen and no more than about 28 vol. % oxygen;
• generating an off-gas stream from the reactor;
• passing the off-gas stream from the reactor to a sulfur recovery zone;
• removing at least a portion of sulfur compounds in the off-gas stream to generate a tail gas stream;
• treating the tail gas stream in a tail gas treatment zone to generate a treated tail gas stream comprising carbon dioxide and water;
• purifying the carbon dioxide in the treated tail gas stream in a carbon dioxide conditioning zone to produce a stream comprising carbon dioxide;
• and
• providing carbon dioxide from the stream to the second inlet,
• wherein the second stream comprises a stream comprising carbon dioxide from the carbon dioxide conditioning zone and a stream comprising oxygen from the sulfur recovery zone.