Energy-saving and environment-friendly low-emission sulfur recovery process
A sulfur recovery, energy saving and environmental protection technology, applied in energy input, sulfur compounds, chemical industry, etc., can solve the problems of increasing device operating costs, pollution, lye consumption, etc., achieve low operating costs, reduce SO2 emission concentration, and reduce emission Effect of Smoke Temperature
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Embodiment 1
[0050] process such as figure 1 shown. The process includes thermal reaction section, catalytic reaction section and tail gas purification treatment section.
[0051] In the thermal reaction section, the acid gas 1 containing 80% hydrogen sulfide (v / v) is partially combusted and converted into sulfur dioxide in the sulfur furnace 2, and hydrogen sulfide and sulfur dioxide undergo a Claus reaction at a high temperature of 1156°C to generate elemental sulfur and the reaction furnace After the tail gas is cooled by the primary condenser 3 (outlet temperature 163°C), the elemental sulfur enters the liquid sulfur pool. The volume content of sulfur-containing compounds in the tail gas of the reaction furnace is: H 2 S: 8.12%, SO 2 : 4.03%, organic sulfur: 0.48%.
[0052] The tail gas of the reaction furnace enters the primary converter 4 of the catalytic reaction section (reaction conditions: temperature 305°C, space velocity 800h -1 ), react under the action of the catalyst to...
Embodiment 2
[0056] process such as figure 2 shown. The process includes thermal reaction section, catalytic reaction section and tail gas purification treatment section.
[0057] In the thermal reaction section, the acid gas 1 containing hydrogen sulfide 72% (v / v) is partially combusted in the sulfur furnace 2 and converted into sulfur dioxide, and hydrogen sulfide and sulfur dioxide undergo a Claus reaction at a high temperature of 1098°C to generate elemental sulfur and the reaction furnace After the tail gas is cooled by the primary condenser 3 (outlet temperature 160°C), the elemental sulfur enters the liquid sulfur pool. The volume content of sulfur-containing compounds in the tail gas of the reaction furnace is: H 2 S: 6.89%, SO 2 : 3.42%, organic sulfur: 0.53%.
[0058] The tail gas of the reaction furnace enters the primary converter 4 of the catalytic reaction section (reaction conditions: temperature 300°C, space velocity 800h -1), react under the action of the catalyst to...
Embodiment 3
[0062] process such as image 3 shown. The process includes thermal reaction section, catalytic reaction section and tail gas purification treatment section.
[0063] In the thermal reaction section, the acid gas 1 containing 86% (v / v) of hydrogen sulfide is partially combusted and converted into sulfur dioxide in the sulfur furnace 2, and hydrogen sulfide and sulfur dioxide undergo a Claus reaction at a high temperature of 1210°C to generate elemental sulfur and the reaction furnace After the tail gas is cooled by the primary condenser 3 (outlet temperature 159°C), the elemental sulfur enters the liquid sulfur pool. The volume content of sulfur-containing compounds in the tail gas of the reaction furnace is: H 2 S: 8.82%, SO 2 : 4.43%, organic sulfur: 0.45%.
[0064] The tail gas of the reaction furnace enters the primary converter 4 of the catalytic reaction section (reaction conditions: temperature 310°C, space velocity 800h -1 ) reacts under the action of a catalyst t...
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