Amtek Research Pvt. Ltd.

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1. What is AMTEK ONLINE CHEMICAL TREATMENT (ACT)?

AMTEK ONLINE CHEMICAL TREATMENT involves injecting liquid chemical in the boiler furnace online i.e. in operating condition to modify the structure of the ash and slag deposits so they become friable and are easily removed by soot blowing.

2. What Chemical is used for ACT?

Aqueous Magnesium based Chemicals consisting of various Inorganic and other Chemicals are used for AMTEK CHEMICAL TREATMENT.

3. Is the ACT Chemical Safe? Is it made in India?

Yes, ACT Chemical is totally safe for the Boiler Furnace, Environment and Humans. The Chemical is formulated in India using indigenous and imported chemicals.

4. How much ACT Chemical is injected into the Boiler Furnace?

It depends upon the type of Fuel burned – Coal, Lignite, Pet-coke, Biomass, Fuel Oil -- Ash Characteristics, and the type of combustion - Pulverized Fuel or Fluidized Bed. ACT Chemical consumption varies from 0.5 ~ 2 kg/ton of fuel.

5. Is AMTEK CHEMICAL TREATMENT Continuous or Intermittent?

It depends upon the requirements. For Slag and Deposit reduction ACT is intermittent. For NOx, SOX and Particulate Matter reduction, ACT is continuous.

6. Can ACT Process be Run & Stopped?

Yes, if there is no Deposition and Slagging, ACT can be stopped. However, we recommend continuous operation with reduced dosage as long as soot blowing of the Boiler is done.

7. Can AMTEK CHEMICAL TREATMENT reduce UBC?

Yes, another Chemical has to be dosed continuously for reducing UBC.

8. Where in the Furnace is the ACT Chemical injected?

The locations, quantity and direction of chemical injection are determined by experience and CFD Modeling of the Boiler.

9. What is CFD Modeling?

Normally, "Experience" decides the Number and Location of Chemical Injectors but sometimes Computer programs are used to analyze the design of Combustion System and Combustion of various Fuels. CFD Modeling of Combustion process and Furnace behavior is determined by feeding all Boiler, Combustion, Fuel and Ash characteristics into a Computer utilizing CFD Modeling Program.

The Modeling results indicate the Temperature Profile, Pressure Profile, Flue Gas Pathways and possible areas of Slagging and Fouling.

10. How does CFD Modeling help ACT Implementation?

CFD Modeling helps in determining the number of places, quantity and direction of Chemical Injection. CFD Modeling also helps in determining the strategy of Chemical Injection.

11. Is Soot Blowing Required to Remove the Deposits?

Yes, ACT creates cleavage planes (intermittent dosing) in deposits and changes the morphology of the deposits so they are easily removed by Soot Blowing.

12. What are the Advantages of AMTEK CHEMICAL TREATMENT?

Following are the Advantages of ACT Process:

ACT modifies the Slag and Deposits making them friable and easily removable by Soot Blowing.
Effectiveness of Soot Blowing is improved.
Boiler Evaporator, Superheater, Economizer and Air Heater are kept clean.
Thus, overall, ACT improves heat transfer in the furnace and reduces Exit Flue Gas Temperature.
Heat Rate improves, Boiler Efficiency is thus improved.
Fuel Consumption reduces.
ACT allows combustion of any type of Fuel or Blend, thus, Fuel Flexibility is 100%.
ACT reduces De-rating of the Boiler.

13. What are the Performance Parameters for AMTEK CHEMICAL TREATMENT?

Cleanliness of the Boiler.
Reduction in Heat Rate and Increase in Power Generation.
Total Fuel Flexibility.

14. What is the Equipment used for ACT?

The ACT System for Fouling and Slagging Control consists of the following:

Chemical Storage Tank
Chemical Unloading & Circulation Pump Unit
High Pressure Dosing Pumps
Water Pumping Unit (Optional)
Pump Controls
Distribution Manifolds and Valves
Injectors
Injector Mountings

15. What is the Capital Cost of Equipment?

No Capital Cost is incurred by the Customer. The Dosing Equipment is supplied free of cost. The Dosing Equipment remains the property of AMTEK RESEARCH.

16. How much Space is required for the Dosing Plant?

For 200 MW Power Plant, 10m^2 and for 500 MW Power Plant, 20 m^2 of covered space is required.

17. What is the Material of Construction of the Chemical Storage Tank?

Fiberglass or HDPE.

18. Where are the Injectors installed?

During Performance proving the Injectors are installed in the Peep Holes on suitable Adapter Plates. Afterwards, dedicated openings or Adapters may be required for installing the Injectors.

19. Do Injectors interfere with Boiler maintenance and movement around?

No.

20. Who installs runs and maintains the Equipment? Who Supplies the Spares?

AMTEK Personnel do all the work at no cost to customer. Normally, 3 persons for each Power Plant of 200 ~ 500 MW are required for operation and maintenance.

21. How much time does it take to withdraw and clean the Injectors?

5 Minutes

22. What is the Cost of AMTEK CHEMICAL TREATMENT to Customer?

The Customer pays only for the Chemical used.

23. How do you calculate the Benefits of ACT Program?

Thermography is used for observing the Firesides.
For calculating the Heat Rate and Additional Power Generation, we rely on the Customer's Data.
Fuel Data is recorded for proving Fuel Flexibility.

24. What is the Return-On-Investment (ROI)?

Please note that ACT is not a Capital Investment Proposal. It is a Revenue Generating Proposal. Cost is incurred on Consumable Chemicals only.

Thus,
Benefits due to reduction in Heat Rate > Cost of Chemical consumed,
Hence, ROI > 1

25. Are there any hidden costs in the Proposal?

No. There are many hidden benefits to the customer.

26. What is the recommended Trial Period?

Three Months.

27. What are the Payment Terms?

We ask for monthly payment for the agreed quantity of Chemical used during the Trial Period. If additional chemical is consumed for proving the performance, no additional payment is sought for.

28. Do you prepare Performance Report? What Data do you use?

We take all the Performance Data from the Power Plant Records. We do the Regression Analysis of the Data and plot the linear or polynomial Trend Lines to determine the improvement compared to 30 days prior Performance Trend.

Yes, we submit Trial Report within 15 days of completing the Trial.

29. Who are your Competitors?

ACT Process and the Chemical Formulation are patented. We don't have competition.
We use similar Technology to reduce NOx, SOx and PM in various types of Thermal Systems.

30. Do you have References?

Yes, we have treated 25, 35, 75, 210 and 500 MW Boilers using ACT Process. Our Collaborators have many References.

31. How much time does it take to start ACT?

From the date of ACT Agreement, it takes 60 days to start ACT Injection Program.

32. What Utilities are needed?

10 kW Power on 3phase 415 Volt, 50 Hz.

33. What Information and Data are needed?

We need the past performance Data since previous shutdown cleaning, Boiler Operating Parameters for the past 1 ~ 3 months, GA drawings of the Boiler and Fuel Specifications.

34. Please indicate the monthly AMTEK CHEMICAL TREATMENT Cost for 210 MW Power Plant?

Please Get in Touch

35. Do you think we can save more than the cost incurred?

Yes, definitely.

36. What are the biggest factors contributing to the savings?

Clean Boiler, Efficient Boiler, Higher Capacity Utilization and Fuel Flexibility.

37. Can we reduce the De-rating of the Boiler?

Depends upon the reason for de-rating? May be yes – if the de-rating is due to boiler dirtiness.

38. What are the competing Technologies?

It will be fair to stick to our ACT Technology.
Our ACT Process is based on many Patents.
In competing Technologies, the Chemicals are sprayed over the Coal on the Conveyor in Powder or Slurry form which is not as effective as direct injection into the Furnace.