Special Exhaust Gas Treatment System – NOx
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De-NO x System (Room-Temperature High-Efficiency NO x Processing System-90% )
Processing principle:
NO generated during the process x In the oxidation zone and O 3 After reacting with (ozone), NO is produced. 2 and O 2 ,NO 2 It produces N upon reaction with a reducing agent. 2 and salt, N 2 Salts generated from displacement reactions may be discharged directly; after monitoring the ORP value, they are released together with the wastewater.
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Oxidation Zone |
Reduction Zone |
Electrostatic Precipitator Zone |
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NO emitted by semiconductors x NO in ... through Remote Plasma Oxidation to NO 2 |
Generated from the oxidation zone NO ₂ React with a reducing agent. Produce salt |
Reducing particulate matter in exhaust gases, as well as in oxidation/reduction reactions Generated particulate matter |
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Reaction mechanism NO+O ₃ →NO ₂ |
Reaction mechanism |
Reaction mechanism |
Denitrification Equipment Comparison:
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Distinguish |
Oxidation/Reduction |
Restore |
Dry and wet adsorption |
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De- NO x System |
SCR |
CSCR |
SNCR |
Adsorption tower |
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Processing Principle |
Through Plasma, NO x Oxidized to NO 2 , ionized NO 2 Perform the reduction process again. |
Exhaust gases and the reducing agent come into contact with the catalyst, and the NO in the exhaust gas… x After selectively reacting with the reducing agent, nitrogen gas and water vapor are produced. |
Ammonia solution is sprayed onto the activated carbon catalyst to remove nitrogen oxides. |
Produce NO x Spraying a reductant at the source to reduce NO. x |
Utilizing van der Waals forces (intermolecular interactions), adsorption treatment is carried out using an adsorbent. |
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Operating temperature |
Room temperature to 200℃ |
300~400℃ |
90~120℃ |
900~1,100℃ |
Room temperature |
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Gas processing |
NO x ,SO x ,Dust, |
NO x | NO x |
NO x |
NO x Excluding, adsorbable gases |
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Processing efficiency |
More than 90% |
80~90% |
70~90% |
40~60% |
70~90% |
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Use potions |
Na Series |
NH 3 ,CO series |
NH 3 Series, UREA... |
NH 3 Series, UREA... |
- |
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Catalyst |
None |
Use a high-cost catalyst. |
Use |
None |
- |
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Disadvantages |
▪ CW (Cooling Water) |
▪ Short catalyst lifespan |
▪ Two adsorbent applications are required. |
▪ White smoke is produced at low temperatures. |
▪ The equipment is bulky. |
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Other |
NO x Processing efficiency is adjustable (by regulating the reductant dosage). |
Impossible or restricted |
Impossible or restricted |
Impossible or restricted |
Impossible or restricted |
Goldenway Environmental Technology Co.,Ltd
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Shenzhen Goldenway Environmental Protection Technology Co., Ltd.
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Jiangsu Goldenway Environmental Industrial Equipment Manufacturing Co., Ltd.
Address: Zijing Avenue, Economic Development Zone, Gaochun District, Nanjing City
Jiangsu Goldenway Environmental Technology Co., Ltd.
Address: Building 3, Chunhua Construction Industrial Park, No. 99 Yanchong Road, Chunhua Subdistrict, Jiangning District, Nanjing City
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Address: No. 814, Village No. 5, Nawang Hian Subdistrict, Phan Nikhom District, Chonburi Province, Thailand
GOLDENWAY INVESTMENT DEVELOPMENT PTE. LTD. (Singapore)
Address: 91 BENCOOLEN STREET, #12-03, SUNSHINE PLAZA
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