Oxygen enrichment heating and production expanding system for sulfur recovery of oil refinery

Abstract

The invention discloses an oxygen enrichment heating and production expanding system for sulfur recovery of an oil refinery, wherein a tee is installed on an original blast pipe and used for inputting oxygen enriched gases; the oxygen enrichment heating and production expanding system is characterized in that a tee is installed at a position at least 2m away from an elbow in the air intake direction of the elbow and near the elbow of a corner close to an air inlet in a furnace of the original blast pipe; for the oxygen enrichment design mainly used for increasing the furnace temperature, a minimal oxygen enrichment amount is allocated for reaching the total oxygen content in a reaction furnace on the condition that the reaction in the furnace reaches the oxygen concentration condition of required furnace temperature; in actual oxygen enrichment allocation, the oxygen enrichment amount needs to be increased by 10-15%; for the oxygen enrichment design mainly used for expanding the yield of the reaction furnace, the minimal oxygen enrichment amount is allocated and is added with decreased or non-decreased air output of an original blower on the condition of ensuring the required total oxygen amount of the reaction so as to reach the total oxygen amount required by the reaction; and in actual oxygen enrichment allocation, the total oxygen content in the furnace needs to be increased by 5-20%.

Description

technical field [0001] The invention relates to a sulfur recovery oxygen-enriched temperature raising and production expansion system in an oil refinery, which is applicable to the oxygen-enriched temperature raising and production expansion of all sulfur recovery devices in an oil refinery, and belongs to the field of oxygen-enriched combustion technology. Background technique [0002] In the sulfur workshop of the refinery, there are many reaction furnaces of sulfur recovery units because the temperature cannot reach 1250 ° C, so that the NH ３ Cannot be converted into CO ２ , to increase the fuel flow, and because of the limitation of the air intake, it is impossible to input more air for combustion, so the reactor cannot be warmed up and the production cannot be increased. Contents of the invention [0003] Reaction mechanism of sulfur recovery unit: [0004] 2H ２ S+3O ２ =2SO ２ +2H ２ o [0005] 2H ２ S+SO ２ =3S+2H ２ o [0006] Combine the above two formulas: 2H...

AI Technical Summary

Problems solved by technology

[0002] In the sulfur workshop of the refinery, there are many reaction furnaces of sulfur recovery units because the temperature cannot reach 1250 ° C, so that the NH ３ Cannot be converted into CO ２ , to increase the fuel flow, and because of the limitation of the air intake, it is impossible to input more air to support the combustion, so the reactor cannot be heated up and the production cannot be increased.

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