Condensate Polishing

Question 1

What are the two signals that will open the Cond Polish bypass valve (FCV-230)?

Answer 1

1. if either FCV-231 or 232 come off their open seats (Inlet and outlet of polisher vessels)
2. DP > 70 psid for 10 sec accross the polisher vessels

Once signal clears the bypass valve will stop opening (and stay where it is)

Question 2

What chemicals are added to:

Anion resin

Cation resin

for regeneration?

Answer 2

AC

• cat-ions - acid (R-Ca⁺ + H₂SO₄) -> (R-H)
• anions - caustic (R-Cl^- + NaOH) -> (R-OH)

Question 3

What are the main functions of the Condensate Polishing System?

Answer 3

Clean condensate:

• mechanical filter
• ion exchanger (remove unwanted ions)
• purify water (replaces unwanted ions with H₂O)

regenerate resin:

• vessels, flowpaths and chemicals

Question 4

What do we do with waste water that has > 20micromhos in the polisher regeneration process?

What do we do with waste water that has < 20micromhos in the polisher regeneration process?

Answer 4

nuetralize the pH and place in HCT for sample and discharge overboard

clean it for reuse in the Waste water recovery system

Question 5

Can a resin bed be placed in service after it has been regened and soaked for 6 hours?

Answer 5

No, you must place the bed on recycle for 6 hours via the FCV-901 and sends discharge of vessel back to the Condenser.