This is as per new notification dated 07 Dec 15 regarding revised SOX & NOX emission from Thermal Power Plants. From 1st Jan 2017, permissible limit of SOx will be 100 mg/Nm3. Now, common practice is H=14Q^0.3 and TPPs>500MW have to keep stack height atleast 275 mtr.So, i would like to know your viewpoint about whether installation of FGD will be mandatory?

Moef notification - gazette.pdf

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  • Ms.Duecom and BHEL can give the basic design and engineering



    Sankhdip Das said:

    Do you have any reference from where i can get detail of FGD? Any organization who is good provider of FGD? Thanks again.
    Whether installation of Flue Gas Desulpharising (FGD) for TPPs will be mandatory
    This is as per new notification dated 07 Dec 15 regarding revised SOX & NOX emission from Thermal Power Plants. From 1st Jan 2017, permissible limit…
  • Do you have any reference from where i can get detail of FGD? Any organization who is good provider of FGD? Thanks again.
  • Yes, you must be complied before 06.12.2017

  • Thanks Mr.Sahu for your kind reply. However, please note the point mentioned with asterisk below. It says TPPs shall meet the limits within 2 years from date of publication of this notification. The last date will be 06 Dec 2017 for all old TPPs irrespective of date.
  • I think, If your plant to be install from 1st Jan 2017, then the permissible limit of SO2 will be 100 mg/Nm3.This limit not for those plant already installed.There another limit  for TPPs ( units) installed after 1st January,2003, upto 31st December, 2016 and TPPs ( units) installed before 31st December, 2003.

     Regarding FGD, if your plant installed before 31st Dec 2016,the SO2 limit is 600 mg/Nm3 (Units Smaller than 500MW capacity units) 200 mg/Nm3 (for units having capacity of 500MW and above). So first you may check the present emission value. if it is come above the limit, you may first try to change in process like inject lime stone with coal, you may use low sulphur contain coal. if the value not come below the limit , you may go FGD.

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