Laundry Chemicals-26

Boiler Water Treatment products

CHARACTERISTIC :

• Convenient liquid treatment, which provides the basic alkalinity on which successful water treatment depends.
• Provides optimum conditions for hardness control to function.
• Neutralizes acid conditions.
• Will assist in keeping silica in suspension.
• Simple test to determine level of treatment.
• Can be used in boilers of all pressures.
• Can be used as a neutralizer after acid cleaning operations
• Suitable for use with all auxiliary boilers; waste heat units; economizers, package boilers, smoke and water tube boilers.
• Dispersant action suspends sludge and sediment particles for efficient blow down.
• Oxygen scavenging for optimum protection.
• Protects boiler, steam lines, condensate lines and feed water lines from corrosion.
• Fast action due to catalyst.
• Simple test to determine level of treatment.

Basic Boiler System Schematic

Below is a summary of problems associated with the common impurities in water and solutions to each problem.

List Of Problems Caused By Impurities In Water

Chemical feed should be continuous. Chemical pumping rates can create problems especially for neat feed set ups. Using on/off feed systems such as a recycle timer can create problems. Chemical feed pumps should be sized or product strengths should be adjusted to allow continuous feed.

Steam and carbon dioxide leave continuously, so setting up a neutralizing amine pump to feed intermittently can lead to wide variations in condensate pH control. If sampling is done from a condensate receiver, the tank volume may buffer the variations and the changes may not be noticed, but corrosion could be occurring to areas of the piping that see the rapidly changing pH.


If polymeric dispersants, phosphonates, phosphate, or chelants are fed intermittently into the feedwater using a recycle timer, and the amines are not fed continuously, a cycle of iron slugs returning in the condensate can be followed by slugs of high dispersancy cleaning of the iron from the deaerator and dragging it into the boiler.

Load changes can affect chemical concentrations when the chemical feed is base fed. Example: Steam production of one million lbs./day; 4% blowdown; 20% active boiler polymer product fed at 5 pounds per day. The calculated daily average polymer concentration would be 24 ppm. Assume peak plant production load is 60,000 lbs./hr., but during the overnight hours the load is only 5,000 lbs./hr. If the dispersant is being fed continuously over the 24 hours, during the 8- hour low load period, the boiler polymer concentration would have increased to over 200 ppm. Upon high fire when production resumes, carryover is very possible because of over concentrating the polymeric dispersant.

Chemical feed needs to be paced to steam production, especially where significant load changes occur.

Carbon dioxide can concentrate in steam and condensate making neutralizing amine treatment impractical. Carbon dioxide levels can be relatively low in steam exiting a boiler at only a few ppm, but if there are areas where it becomes “trapped” and can accumulate, concentrations can reach extremely high levels into the hundreds or even thousands of ppm.

CO2 is a non-condensable gas. It has a distribution ratio in the steam piping and condenses at points throughout the system. At the boiling point, the solubility of the gas in water is extremely low. The solubility of the CO2 is actually lower in the condensate than it is in the steam. For the CO2 to escape from the steam into the water it will accumulate in the steam space just above the water level until the partial pressure becomes high enough for the CO2 in the incoming steam to be able to exit into the condensate. This creates a steady state condition of CO2 coming in and exiting, but an area of severe localized corrosion occurs where the carbon dioxide concentration is high.

The highest CO2 concentration normally occurs just above the condensate water level. If there is an area where condensation is occurring and running down pipes or the sides of vessels, the CO2 concentration will be very high and the pH will be about 5.3 – 5.5 in that location creating high corrosion rates.


The solubility of CO2 increases dramatically as the condensate temperature falls below 212 °F. When there is an accumulation of CO2 in an area and the condensate temperature is relatively low, the amount of carbon dioxide going into solution will be extremely high. Where low-pressure steam is used that contains CO2 and the heat exchange process has relatively close temperature differentials between the steam and the condensate, there is potential for high uptake of the CO2 into the condensate and localized low pH.

Neutralizing amines are selected in an effort to condense in the right concentrations to carbon dioxide condensation levels throughout the steam system. Neutralizing amines cannot control corrosion where this localized accumulation of carbon dioxide occurs since the high CO2 overwhelms the demand for the amine. Even point source addition of amine may not be able to satisfy the demand.

Where the concentrating effect of CO2 occurs, methods of reducing the problem include eliminating or minimizing CO2 in the steam, venting off the CO2 in the localized area, eliminating condensate in the area, applying a filming amine or metal passivator, or using higher temperature steam and increasing condensate temperature to reduce the CO2 content in the condensate.

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A one-step and one SHOT treatment to control the formation of rust and scale in boilers. Contains alkaline compounds, scale and corrosion inhibitors, oxygen scavengers and sludge conditioners. which resulting in a scale and corrosion control by one shot operation.

Boiler water treatment speacialized chemical products One Shot Universal Liquitreat  Exporter, manufacturer, supplier in Mumbai, Gandhidham - Kandla, Mundra, Sikka, Surat, Kolkata - Haldia, Buz Buj, Paradip, Visakhapatnam - Gangavaram, Fujairah, Dubai, Sharjah, Abu Dhabi, Ruwi Barka Muscat Sohar, Oman, Sudan, Yemen, Nairobi Kenya

BOILER WATER TREATMENT chemicals manufacturer and supplier in INDIA, MUSCAT OMAN, UAE DUBAI, Nairobi

A Liquid Chlorine Bleach Containing Deodorizer Which Is added to the Water When Washing Clothes. Available in 1.5 kg Plastics Bottles Packed 8 bottles In a Case.

Bleaching Liq manufacturer supplier distributor in Mumbai, Kandla, Kolkata, Vizag, Chennai, India, Fujairah, Dubai UAE, Muscat Oman, Kenya Africa. Get the best quality of Bleaching Liq at a competitive price from us. We have ready stock of Bleaching Liq in India, UAE Gulf, Oman, Kenya Africa. Contact us for bulk as well as small orders.

COA

Chemical Properties

Sulfolane supplier in Mumbai, Kandla, Chennai, Ennore, Visakhapatnam, Kolkata, Haldia, Paradip, Fujairah, Dubai, Sharjah, Abudhabi, Ajman, Muscat Barka Oman

We also keeping ready stock of following chemicals : 

1. Hydrazine Hydrate 

2. Monoethanolamine 

3. Diethanolamine 

4. Sulfolane 

5. Morpholine 

6. Potassium carbonate 

7. Triethanolamine 

8. Cyclohexylamine 

9. Ethylene Diamine 

10. Trichloroethylene 

Seawater Hydrometer supplier in Dubai, Sharjah, AbuDhabi, Ajman, Fujairah UAE Middle East, Muscat Oman, Mumbai, Kandla, Chennai, Visakhapatnam, Kolkata, Haldia, Howrah.

 INSTRUCTIONS FOR USE
1. A clean, representative sample of the supporting water should be obtained by means of a sampling can or other suitably designed sampling apparatus. A sample of at least 1 liter will help to ensure that the temperature and density do not change unduly between the collection of the sample and taking of the readings. The depth of water in the container must be sufficient to allow at least 25mm clearance between the bottom of the hydrometer and the bottom of the hydrometer and the bottom of the container. The internal diameter of the container or jar should be at least 50 mm.
2. The number of samples to be taken, also at which depths and at which positions outside the vessel they should be taken, may be important according to the circumstances.
3. Readings may be taken by lowering the hydrometer into a suitably shaped sampling apparatus or by transferring the water to a suitable glass test jar. If a metal or other non-transparent container is used for taking readings, ensure that it is full to the brim. If a glass test jar is used, it should preferably be rinsed first, so as to avoid undue temperature changes. The container or test jar should be shielded from draughts, which may affect the readings.
4. The reading must be taken in the sampling apparatus or glass test jar as rapidly as possible Undue delay in taking the reading could result in temperature changes leading to inaccurate results. In case of doubt, a repeat sample should be taken in order to verify the first observation
5. Ensure that the stem of the hydrometer and the surface of the water sample is free from grease and oil since the accuracy of the readings could be adversely affected
6. Hold the hydrometer vertically by the top of the stem and gently lower it into the water sample until it floats freely
7. Take the hydrometer reading where the level liquid surface meets the graduated scale.

CORRECTIONS TO HYDROMETER READING
1. For ydrometer the appropriate corrections should be applied.
2. For most Draft Survey purposes, no further corrections to the readings are needed.
Reading is most correct when the glass hydrometer is used at a temperature of 15°C. If immersed in water at temperatures higher or lower than 15°C, the instrument will expand or contract so that, for precise laboratory work, a small correction would be applicable However, for Draft Survey work, it should be noted that the ship itself will normally expand or contract according to the temperature of the water in which it is rating. The corrections required to compensate for these changes in volume are of opposite signs and tend to compensate for each other. As it is not practicable to calculate any temperature corrections for the ship, for most Draft Survey purposes no correction should be applied for the expansion or contraction of the hydrometer glass

Hydrometer Density supplier in India UAE Middle East Gulf Muscat Oman Nairobi Kenya.