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Oxygen Scavenger Boiler Oxy Control
Dechlorination product which is frequently used in municipal wastewater, pulp & paper, power, and textile water treatment plants and as a Oxygen scavenger in Boiler water treatment. Also popular for preservative in photo developer process and Food additive.
This is most common oxygen treatment as a scavengers used to effectively remove dissolved OXYGEN from your feedwater. By the presence of dissolved oxygen in system, corrosion and pitting caused on metal surface. Removes dissolved oxygen, By acting as an oxygen scavenger.
Oxygen Treatment scavenger is a class of chemicals added to react and remove oxygen in water to protect against oxygen induced corrosion. The use of Oxygen Scavenger Boiler Oxy Control as a chemical deoxygenator is economical within certain limitations imposed by the dissolved oxygen content. Oxygen Scavenger Boiler Oxy Control is relied on as the sole means of oxygen removal. Generally, costs are balanced by removal of as much of the oxygen as feasible by mechanical means, e.g. deaerator and by using Oxygen Scavenger Boiler Oxy Control to react with the residual oxygen.
To prevent corrosion and pitting it is desirable to feed the Oxygen Scavenger Boiler Oxy Control. Oxygen scavengers capture the dissolved oxygen in a harmless chemical reaction that renders the oxygen unavailable for corrosive reactions.
Theoretically, 7.88 pounds of RXSOL-42-1524-030 are required to remove one pound of oxygen. The efficiency of the oxygen removal is estimated at 75 per cent to allow for oxidation in contact with air, blowdown losses, etc. Therefore it is estimated that 10 pounds of RXSOL-42-1524-030 are required for each pound of oxygen removed (or 10 ppm RXSOL-42-1524-030 per 1 ppm dissolved oxygen.)
BENEFITS -
RAPID REACTION :
The catalyst RXSOL-81-6119-220 speeds up the removal of dissolved oxygen. Oxygen can be removed completely even from cold water due to catalytic action. Normal reaction time is as low as 15 to 20 seconds as against 10 to 30 minutes for uncatalysed sulphite.
EASY TO HANDLE :
RXSOL-81-6119-220 is a free flowing powder. It is soluble in water even at lower feed water temperature.It is non-toxic and non-corrosive and, therefore, can be handled easily.
pH CONTROL :
RXSOL-81-6119-220 is formulated to get proper pH control for optimum availability of catalyst for rapid oxygen removal.
COST EFFECTIVE :
The catalytic action reduces the excessive requirement of sulphite in feed water for the rapid removal of oxygen. Thus the quantity required is lower, making RXSOL-81-6119-220 treatment cost effective.
APPLICATION AND DOSAGE :
RXSOL-81-6119-220 solution should be dosed continuously. Dissolve the required quantity of RXSOL-81-6119-220 gently in boiler feed water in a separate tank. Dose this solution continuously in the boiler feed water line after the deaerator.
Above 8 ppm of sodium sulphite is required for the removal of 1 ppm of dissolved oxygen from boiler
feed water. About 10% to 20% of excess sulphite should be dosed to provide oxygen consuming reserve.
The table below gives the approximate dosage.
| Feed Water Temperature | RXSOL-81-6119-220 dosage in gms per ton ofsteam generation |
|
More than 80oC |
15 |
| 60 to 80oC | 30 |
| 40 to 60oC | 60 |
| Less than 40oC | 100 |
The rmax will provide technical assistance in arriving at optimum dosages for your operating conditions and requirements and in selecting a suitable dosing system for your plant
HANDLING, STORAGE AND PRECAUTIONS :
RXSOL-81-6119-220 is mildly alkaline in nature. Normal precautions should be taken while handling solid powders. In case of contact, wash with water. Do not swallow.
RXSOL-81-6119-220 should be stored in a dry condition. Close the container tightly to avoid contact with air.
PACKING :
RXSOL-81-6119-220 is available in 50 kg polythene lined bags.
| Solubility (10 % Aquous Soln) | V. S. Hazy to clear solution. |
| pH Value of 5% Solution | 3.5 to 4.5 |
| Specific Gravity @ 25° C | 1.310 – 1.370 |
| Density, lbs/gal @ 25° C | 10.9 - 11.3 |
| Description | Oxygen Scavenger for Boiler |
| Standard Packing | 30 Kg / 50 Kg. / 250 kg HM HDPE Barrel |
The most common oxygen scavengers in oilfield production are sodium bisulfite (SBS) and ammonium bisulfite (ABS). Ammonium bisulfite is more water soluble than sodium bisulfite and typically react with oxygen faster. However, ammonium in the ammonium bisulfite can promote bacteria growth.
Being a salt of a weak acid and a strong base, sodium bisulfite forms a significantly basic aqueous solution whereas ammonium bisulfite is only slightly basic at around pH 8. As a rule of thumb, 60ppm of 65wt% ammonium bisulfite is required to reduce the oxygen concentration in water from 9ppm to 50ppb.
The reaction of bisulfite with oxygen is typically faster at higher temperatures and can be facilitated by transition metal ion catalysts, e.g. Cobalt.
The most common applications of oxygen scavenger in oil and gas production are for seawater injection facilities, hydro-testing, and acid stimulation
It is used to arrest oxygen in sea water
It removes Entrapped Oxygen and thus reduces Corrosion
In Oil Drilling Chemicals