EVAPORATOR TREATMENT
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AMEROYAL - Evaporator Treatment
Description
AMEROYAL evaporator treatment is a liquid combination of active polymer and antifoam used to prevent scale deposition in high and low-pressure evaporators. AMEROYAL treatment is proven effective in seawater, brackish and fresh water. AMEROYAL treatment may be used to remove existing scale deposits. AMEROYAL treatment is used or approved for use in evaporators by the following organizations: U.K. Board of Trade, Norwegian State Institute, Sasakura-Atlas, Japan Food Medical Association, and the Yokohama City Institute of Health.
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Features |
Benefits |
|
Polyelectrolyte scale inhibitor |
Prevents scale and minimizes acid cleaning or cold shocking Can remove existing scale, thereby reducing the need for acid cleaning |
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Does not contain any phosphates |
Does not form adherent sludges |
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Contains an antifoam |
Prevents foaming and carryover |
Application and Use
When seawater is treated with AMEROYAL evaporator treatment, the polymers prevent the scale forming minerals in the water from precipitating crystal growths in their normal manner. The scale forming crystal patterns are altered so that they cannot adhere tightly to themselves or the metal surfaces and cannot impede heat transfer. The detached solids are held in suspension and ultimately carried out of the evaporator with the overboard discharge brine.
AMEROYAL treatment is diluted with fresh or seawater and fed continuously to the evaporator inlet line, directly to the evaporator shell or just prior to any external heat exchanger. Feed AMEROYAL treatment by means of the DREWTM
BWT Dosing System that uses a metering pump or the DREW FWG Dosing System that uses a flow meter. The recommended dosage rate is 30 mls per ton of distilled water produced per day based on the rated capacity at normal operating temperature and brine density. If brine density is increased, the dosage should be increased proportionately. In scale removal, a dosage rate of 60 mls per ton per day is recommended accompanied by increased overboard discharge.
AMEROYAL Evaporator Treatment Dosage Chart
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Rated Capacity (tons) |
Liters |
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5 |
0.15 |
|
10 |
0.30 |
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15 |
0.45 |
|
20 |
0.60 |
|
25 |
0.75 |
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30 |
0.90 |
|
40 |
1.20 |
|
50 |
1.50 |
Typical Physical Properties
Appearance: Clear to slightly hazy amber liquid
pH, undiluted: 13.0
Specific Gravity at 25° C (77° F): 1.015
Flash Point: None
Miscible with salt or fresh water in all proportions.
Packaging
AMEROYAL evaporator treatment is available in 25-liter containers.
Important Information
Ashland maintains Material Safety Data Sheets on all of its products. Material Safety Data Sheets contain health and safety information for your development of appropriate product handling procedures to protect your employees and customers.
Our Material Safety Data Sheets should be read and understood by all of your supervisory personnel and employees before using Ashland products in your facilities.