Process and apparatus for the combustion of sulfur

Details Process and apparatus for the combustion of sulfur Process and apparatus for the combustion of sulfur

C - Chemistry, Metallurgy

01

B

C01B 17/54 (2006.01)

Patent

CA 2640764

During the combustion of sulfur with air for producing sulfur dioxide, sulfur is burnt in a first portion of the combustion furnace under substoichiometric conditions. The sulfur dioxide formed in the first portion and unburnt sulfur are supplied to a second portion of the furnace adjoining the first portion, in that they are subjected to post-combustion with air. This provides for the production of sulfur-dioxide- containing gas free from nitrogen oxide.

Selon la présente invention, lors de la combustion du soufre avec de l'air afin de produire du dioxyde de soufre, du soufre est brûlé dans une première partie du four de combustion dans des conditions sous-stAEchiométriques. Le dioxyde de soufre formé dans la première partie et le soufre non brûlé sont transférés dans une seconde partie du four touchant la première partie, de ce fait ils sont soumis à une post-combustion avec de l'air. Ceci permet de produire un gaz contenant du dioxyde de soufre sans oxyde d'azote.

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