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Corona-Plasma Flue Gas DeSO2/DENOx Technique by High Frequency AC+DC Power Supply with a Semi-Wet Flow

This research paper discusses the industrial-scale application of corona-plasma technology for the removal of SO2 and NOx from flue gases. The study explores the use of a high frequency AC+DC power supply with a semi-wet flow system and presents experimental results demonstrating efficient removal of pollutants and production of qualified fertilizer.

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Corona-Plasma Flue Gas DeSO2/DENOx Technique by High Frequency AC+DC Power Supply with a Semi-Wet Flow

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  1. AN INDUSTRY SCALE CORONA-PLASMA FOR FLUE GAS DESO2/DENOx TECHNIQUE BY HIGH FREQUENCY AC+DC POWER SUPPLY WITH A SEMI-WET FLOW

  2. Dr. E.M. van veldhuizen, TU/e, 2000 10 ns 20 ns 30 ns 40 ns P.P. M. Blom, PhD Thesis, TU/e, 1997 Streamer plasma： Key-problem-----ns pulse source

  3. Industrial use research

  4. AC AC DC DC (b): Transformer-couple (a): C-COUPLE DC+AC couple mode

  5. Theory of DE SO2 1) gas--liquid-reaction SO2+(NH4)2SO3+H2O 2NH4HSO3 NH3+NH4HSO3(NH4)2SO3 2) reaction with plasma O2，H2O  O, OH, H SO2  SO3 SO3+2NH3+H2O  (NH4)2SO4 S(IV) => S(VI)

  6. Small scale system in Peking University

  7. Medium scale system in Tsinghua University

  8. 换热器 干燥器 换热器 除尘器 50~60 C 烟囱 >140℃ 分区湿式反应器 >70℃ 除尘器 100mg/m3 燃煤烟气 >150℃ 换热器 干燥器 换热器 吸收剂 水 AC/DC 硫酸盐 semi-wet flow

  9. semi-wet flow monitor

  10. Large scale system in BJTU

  11. (NH4)2SO4

  12. The experiments were carried out on the corona-plasma flue gas DeSO2/DeNOX system with a capacity of 12,000 Nm3/h under the following conditions: gas temperature at the reactor entrance of 135℃, gas temperature at the reactor exit of 90℃, the power supply’s parameters is 40 kVpp/48kHz AC voltage and 40kV DC voltage. The experiments of DeSO2 and DeNOx were implemented simultaneously, 98% of SO2 and 44% of NOx are removed with an energy consumption of 1.8Wh/Nm3 and the final products are qualified fertilizer.

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