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Project Description
Background
Unit No. 5~10 of Taichung Power Plant have achieved outstanding performance since they were put into operation in 1996. However, due to the increasingly stricter standards of the central and local environmental protection regulations in recent years, the existing units will be retrofitted to supply the stable power and meet the environmental protection standards in the future operation life time by improving the air pollution control equipment, reducing various pollutants - NOx, SOx, PM, etc., for stable power supply.
Retrofit Scope
Improvement of Air Quality Control System(AQCS) includes the selective catalyst reduction (SCR .The SCR system shall be retrofitted to enhance the Mercury (Hg) oxidation rate),flue gas desulfurization equipment(FGD) , wet electrostatic precipitator(WESP) and media gas-gas heater(MGGH).
Expected Effectiveness
The plan is expected to improve the existing NOx, PM and SOx control equipment of unit 5 to 10, so that the air pollutant concentration discharged by the units can be lower than the requirements of the air pollutant emission regulation of electric power facilities of the environmental protection Bureau of Taichung City Government (implement on 2024/01/01)：
- Nitrogen oxide (NOx): the concentration discharged will be reduced to 20ppm.
- Particulate Matter (PM): the concentration discharged will be reduced to 5mg/Nm3
- Sulfur oxide (SOx): the concentration discharged will be reduced to 10 ppm.
Progress Status
Project Progress
| Schedule | Actual | Difference |
|---|---|---|
| 80.09 | 80.09 | 0 |
| Units | Introduction Date |
|---|---|
| Unit 7 | 2023/03/25 |
| Unit 8 | 2023/06/12 |
| Unit 5 | 2024/04/07 |
| Unit 6 | 2024/05/27 |
| Unit 9 | 2025/04/08 |
| Unit 10 | 2025/06/27 |
Construction Status
Unit 7 & 8 AQCS retrofit work has been completed, and Unit 5 was shut down on August 12, 2023, and reached the milestone of flue gas introduction on April 7,2024. This unit enters the turnover stage. Unit 6 has been shut down since October 1, 2023, and reached the milestone of flue gas introduction on May 27, 2024. The trial run test is sustained in progress. Unit 9 has been shut down since July 13, 2024. This unit is going on demolishing, pre-assembling steel structure and civil engineering.