Flue gas desulfurization system for oil burning boiler

CN223628420UActive Publication Date: 2025-12-05HENNAN ELECTRIC POWER SURVEY & DESIGN INST CO LTD
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Patent Information

Application Number
CN202423254411.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2025-12-05
Estimated Expiration
2034-12-28

AI Technical Summary

Technical Problem

In existing technologies, the Middle East lacks alkaline resources such as limestone, making it impossible to use limestone-gypsum wet desulfurization. This results in oil-fired power plants being unable to use wet desulfurization facilities, thus failing to effectively solve the desulfurization problem of oil-fired boilers and ensure that flue gas emissions meet standards.

Method used

Two parallel desulfurization pipelines are used, combined with an ammonia-air mixer, reactor, flue gas-flue gas heat exchanger, condenser and wet electrostatic precipitator. SO2 is converted into sulfuric acid through a catalyst, generating commercially valuable by-product sulfuric acid, and the heat released by condensation is used to improve boiler efficiency.

Benefits of technology

This achieved compliance with flue gas emission standards while generating commercially valuable byproduct sulfuric acid, thus improving the efficiency and economic benefits of fuel-fired power plants.

✦ Generated by Eureka AI based on patent content.

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Abstract

An oil burning boiler flue gas desulfurization system is characterized in that a dust remover sequentially enters a first flue gas-flue gas heat exchanger and a first flue combustor from a first flue, the first flue combustor is connected with a first combustor rear flue, and a first ammonia-air mixer and a first reactor are arranged on the first combustor rear flue; the air inlet end of the first ammonia-air mixer is communicated with a mixture of ammonia gas and air, the mixture of ammonia gas and air enters the first reactor, the first reactor is connected with the first flue gas-flue gas heat exchanger, a flue gas outlet of the first flue gas-flue gas heat exchanger is connected with a first condenser inlet flue, and the first condenser inlet flue is connected with the first condenser; the first condenser is connected with a sulfuric acid treatment unit and a first wet-type electric precipitator, the first wet-type electric precipitator is connected with a first induced draft fan, and the first induced draft fan is connected with a chimney inlet flue through a first induced draft fan outlet flue. The waste heat is reasonably utilized, so that the efficiency and the economic benefit of a fuel oil power plant are improved.
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