Condensate Treatment

We are THE CONDENSATE TREAMENT EXPERTS.

As one of the technology leader of Condensate treatment, Graver has over 65 years of application experience and real-world operation that cannot be duplicated.  Some examples:

  • Graver is the largest condensate system supplier in the world with hundreds of installations over the past sixty years and over 40 patents covering various aspects of condensate polishing technology.
  • We supply the North America condensate polishing market with > 75% share in Powdex and >60% share in deep bed systems (North America) in the last 15 years.
  • We are the leader in all major condensate technologies such as Deep Bed polishers with SepraEight® external regeneration, Powdex filter demineralization systems & Condensate filtration systems.
  • We maintain strong , long-term working relationships with EPCs such as Bechtel, Black & Veatch , Shaw Stone & Webster, Fluor, Sargent & Lundy amongst others.
  • Our Powdex®, Ecodex® products are used in >70% of replacement powdered resin market worldwide.
  • Have satisfied customers across a spectrum of Fossil, Nuclear and Solar Thermal power generating companies.

Not sure what you need? Contact us today and we can help you choose the proper Condensate Polisher System to meet your requirements.  Also below is a flow chart to help you select the right treatment technology for your needs.

CP Process Design Flowchart

Frequently Asked Questions (FAQ) on Condensate Polishing

Q1. Why do Combined Cycle Gas Turbine (CCGT) units need condensate filters or polishers?
CCGT units are cycled frequently based on demand. A condensate filtration or polishing system allows the steam chemistry limits, as specified by the HRSG supplier, to be reached faster and thereby reducing the time required to reach full power.

Q2. Does condensate from Air Cooled Condensing Systems need to be treated?
Yes, return condensate from ACC’s contain high levels of iron at start-up that needs to be removed.

Q3. What makes condensate filters and polishers economical?
Condensate treatment reduces HRSG blowdown resulting in the saving of heat and reduction of water losses and thereby reducing make up requirements. This in turn, helps in the of the maintaining steam cycle chemistry and thus reduces the need for tube cleaning. Condensate filtration and polishing help in the achieving steam purity faster resulting in full power output much quicker.

Q4. Are there guidelines for iron levels recommended by HRSG drum boiler manufacturers?
Yes, typically iron as Fe should be < 20 ppb at condensate pump discharge.

Q5. What levels of iron can be expected in return condensate from ACC’s?
50-1,000 ppb with higher levels of iron during start-up.

Q6. What are the different options available for the treatment of condensate?
Condensate filtration with disposable or back-washable septa, condensate filter demineralizers and condensate polishing. Each have their advantages and disadvantage.

Q7. What is a condensate filter-demineralizer?
A condensate filter demineralizer combines both filtration and ion exchange demineralization in a single vessel. The process is more known as “Powdex®” or powered ion exchange resin.

Q8. Can a condensate filter demineralizer function only as a condensate filter?
Yes, a Powdex® system equipped with Dualguard septa can function as a standalone filter. This is typically done at start-up for crud removal.

Q9. Is an ammonium form premix resin available?
Yes, and in different cation to anion ratios. For additional information check out the different resins at Graver Technologies’ website – Powdex Premix 22N and Powdex Premix 42N ion exchange resins

Q10. Can I control my boiler feed water chemistry utilizing condensate polishing?
Yes. Condensate treatment options can be selected to coordinate with boiler water chemistry targets.

Condensate Treatment

We are THE CONDENSATE TREAMENT EXPERTS.

As one of the technology leader of Condensate treatment, Graver has over 65 years of application experience and real-world operation that cannot be duplicated.  Some examples:

  • Graver is the largest condensate system supplier in the world with hundreds of installations over the past sixty years and over 40 patents covering various aspects of condensate polishing technology.
  • We supply the North America condensate polishing market with > 75% share in Powdex and >60% share in deep bed systems (North America) in the last 15 years.
  • We are the leader in all major condensate technologies such as Deep Bed polishers with SepraEight® external regeneration, Powdex filter demineralization systems & Condensate filtration systems.
  • We maintain strong , long-term working relationships with EPCs such as Bechtel, Black & Veatch , Shaw Stone & Webster, Fluor, Sargent & Lundy amongst others.
  • Our Powdex®, Ecodex® products are used in >70% of replacement powdered resin market worldwide.
  • Have satisfied customers across a spectrum of Fossil, Nuclear and Solar Thermal power generating companies.

Not sure what you need? Contact us today and we can help you choose the proper Condensate Polisher System to meet your requirements.  Also below is a flow chart to help you select the right treatment technology for your needs.

CP Process Design Flowchart

Frequently Asked Questions (FAQ) on Condensate Polishing

Q1. Why do Combined Cycle Gas Turbine (CCGT) units need condensate filters or polishers?
CCGT units are cycled frequently based on demand. A condensate filtration or polishing system allows the steam chemistry limits, as specified by the HRSG supplier, to be reached faster and thereby reducing the time required to reach full power.

Q2. Does condensate from Air Cooled Condensing Systems need to be treated?
Yes, return condensate from ACC’s contain high levels of iron at start-up that needs to be removed.

Q3. What makes condensate filters and polishers economical?
Condensate treatment reduces HRSG blowdown resulting in the saving of heat and reduction of water losses and thereby reducing make up requirements. This in turn, helps in the of the maintaining steam cycle chemistry and thus reduces the need for tube cleaning. Condensate filtration and polishing help in the achieving steam purity faster resulting in full power output much quicker.

Q4. Are there guidelines for iron levels recommended by HRSG drum boiler manufacturers?
Yes, typically iron as Fe should be < 20 ppb at condensate pump discharge.

Q5. What levels of iron can be expected in return condensate from ACC’s?
50-1,000 ppb with higher levels of iron during start-up.

Q6. What are the different options available for the treatment of condensate?
Condensate filtration with disposable or back-washable septa, condensate filter demineralizers and condensate polishing. Each have their advantages and disadvantage.

Q7. What is a condensate filter-demineralizer?
A condensate filter demineralizer combines both filtration and ion exchange demineralization in a single vessel. The process is more known as “Powdex®” or powered ion exchange resin.

Q8. Can a condensate filter demineralizer function only as a condensate filter?
Yes, a Powdex® system equipped with Dualguard septa can function as a standalone filter. This is typically done at start-up for crud removal.

Q9. Is an ammonium form premix resin available?
Yes, and in different cation to anion ratios. For additional information check out the different resins at Graver Technologies’ website – Powdex Premix 22N and Powdex Premix 42N ion exchange resins

Q10. Can I control my boiler feed water chemistry utilizing condensate polishing?
Yes. Condensate treatment options can be selected to coordinate with boiler water chemistry targets.