FGD and DeNOx
NEWSLETTER
November 2013
No. 427
Chinese
Regulations are Getting Tougher
China is not
only setting tough air pollution limits but is also making the investments for
compliance. It will retrofit 400,000 MW of SCR and add 250,000 MW of new SCR and
FGD in the 2013-18 period. There is serious concern that electrostatic
precipitators (ESP) will not meet the new particulate limits in key regions (20
mg/Nm3). Therefore some fabric filters are likely to be procured.
There is a mercury limit on all boilers starting in 2015. It is much higher than
the U.S. MATS limit but it is a start. The emission limits for major air
pollutants are shown in Figure 2.
Figure 2.
Chinese Utility Boiler and Gas Turbine Emission Limits
(Units mg/m3)
|
No. |
Type of Facility and Fuel |
Pollutant |
Conditions |
Limits |
|
1 |
Coal-fired boilers |
Particulate |
All |
30 |
|
Sulfur Dioxide (SO2) |
New Boilers |
100
200(1) |
||
|
Existing Boilers |
200
400(1) |
|||
|
Nitrogen Oxides
(NOx) |
All |
100
200(2) |
||
|
Mercury
|
All |
0.03 |
||
|
2 |
Oil-fired boilers or gas turbines |
Particulate |
All |
30 |
|
SO2 |
New boilers and gas turbines |
100 |
||
|
Existing boilers and gas turbines |
200 |
|||
|
NOx |
New oil-fired boilers |
100 |
||
|
Existing oil-fired boilers |
200 |
|||
|
Gas turbines |
120 |
|||
|
3 |
Gas-fired boilers or gas turbines |
Particulate |
Natural gas-fired boilers and gas turbines |
5 |
|
Other gas-fired boilers and gas turbines |
10 |
|||
|
SO2 |
Natural gas-fired boilers and gas turbines |
35 |
||
|
Other gas-fired boilers and gas turbines |
100 |
|||
|
NOx
|
Natural gas-fired boilers |
100 |
||
|
Other gas-fired boilers |
200 |
|||
|
Natural gas-fired turbines |
50 |
|||
|
Other gas-fired gas turbines
|
120 |
Notes:
(1) Located in Guangxi Zhuang Autonomous Region, Chongging Municipality,
Sichuan Province
and Guidhou Province, where the limits will be
implemented for coal-fired boilers.
(2) Implementing limits on W-type power generation boilers or furnace
chamber flame boilers,
circulating fluidized bed (CFB) boilers, and
boilers put into operation as of December 31, 2003
or through the construction project's
environmental impact report's approval of coal-fired power boilers.
Utility
boilers and gas turbines located in key regions will implement special air
pollutant emission limits set forth in Figure 3. The geographic scope of the key
regions and timeline of the special limits are subject to MEP’s further
regulation.
Figure 3.
Emission Limits for Key Regions in China
(Unit mg/m3)
|
No. |
Type of Facility and Fuel |
Pollutant |
Conditions |
Limits |
|
1 |
Coal-fired boilers |
Particulate |
All |
20 |
|
SO2 |
All |
50 |
||
|
NOx |
All |
100 |
||
|
Mercury
|
All |
0.03 |
||
|
2 |
Oil-fired boilers or gas turbines |
Particulate |
All |
20 |
|
SO2 |
All |
50 |
||
|
NOx |
Oil-fired boilers |
100 |
||
|
Gas turbines |
120 |
|||
|
3 |
Gas-fired boilers or gas turbines
|
Particulate |
All |
5 |
|
SO2 |
All |
35 |
||
|
NOx |
Gas-fired boilers |
100 |
||
|
Gas turbines |
50 |
Bob Mcilvaine
President
Mcilvaine Company
Ph: 847-784-0012 ext. 112