Process for burning of sulfur

Chemistry of inorganic compounds – Sulfur or compound thereof – Oxygen containing

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422160, C01B 1754, C01B 1784

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active

058075305

ABSTRACT:
In the manufacture of sulfuric acid, elemental sulfur is reacted to by finely atomizing liquid sulfur into a vortex of combustion air and returning the atomized sulfur in the vortex during combustion, the ratio of air and sulfur supplied to the vortex being substantially stoichiometric. This ensures that liquid sulfur is not deposited on the walls of a reaction chamber or the structure of a waste heat boiler receiving gases from the combustion chamber, and minimizes generation of nitrogen oxides.

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patent: 2031403 (1936-02-01), Bencowitz
patent: 3172735 (1965-03-01), Barclay et al.
patent: 3879530 (1975-04-01), Perret
patent: 3936275 (1976-02-01), Perret et al.
patent: 4728036 (1988-03-01), Bennett et al.
Conroy et al, Combustion of Sulfur in a Venturi Spray Burner, Industrial & Engineering Chemistry vol. 41 #12 Dec. 1949.
"Sulphur Handling, Sulphur Combustion, Sulphuric Acid" Brochure, Lurgi, 1991.
"Studies on Atomizing Liquid Sulfur Using Atomizers of Different Construction", Banczyk et al, International Chemical Engineering, Jan. 1976, pp. 74-78.
"Moderisation of the Installation for Combustion of Liquid Sulfur in Sulfur Acid Plants" Chwalibog et al, Inz. Apar. Chem, 1974, 13(5), pp. 5-10 (Translation only).
"Utilization of Studies on Gas Turbulence for Construction of New Furnaces for the Combustion of Liquid Sulfur".
Banczyk et al, Inz. Apar. Chem., 1974, 13(5), pp. 11-14 (Translation only).

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