Ammonium Bisulfite Oxygen Scavenger
Part No. RXSOL-81-6119-220
Used as Oxygen Scavanger for Drilling Rigs
Ammonium Bisulfite corrosion inhibitor acts as oxygen scavengers used to effectively remove dissolved OXYGEN
Key Technical Details
| Part number | RXSOL-81-6119-220 |
|---|---|
| Generic name | Used as Oxygen Scavanger for Drilling Rigs |
| Active matter (%) | 65-72 |
| Standard packing | 220.00 |
| Supply locations | Ammonium bisulfite supplier and exporter from Mumbai, Chennai, Kolkata, Visakhapatanm, Gandhidham, Fujairah, Sharjah, Dubai, Abudhabi. |
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 Ammonium Bisulfite as a chemical deoxygenator is economical within certain limitations imposed by the dissolved oxygen content. Ammonium Bisulfite 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 Ammonium Bisulfite to react with the residual oxygen.
To prevent corrosion and pitting it is desirable to feed the Ammonium Bisulfite.
Theoretically, 7.88 pounds of RXSOL-81-6119-220 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-81-6119-220 are required for each pound of oxygen removed (or 10 ppm RXSOL-40-5023-210 per 1 ppm dissolved oxygen.)
Uses
Ammonium Bisulfite Oxygen Scavenger is suitable for use in:
- Oilfield water injection systems
- Seawater injection systems
- Produced-water treatment systems
- Waterflood operations
- Oil and gas production facilities
- Injection pipelines and flowlines
- Deaerated water systems
- Closed-loop industrial water systems
- Process-water systems
- Hydrotest and preservation water, where chemically appropriate
- Storage and transfer systems requiring dissolved-oxygen control
- Corrosion-control programs where oxygen removal is an essential part of the treatment strategy
PHYSICAL AND CHEMICAL PROPERTIES
| Formula | (NH4HSO3) |
| Molecular Weight | 99 |
| Physical appearance | Clear, Yellow coloured solution free From foreign particles. |
| Ammonium Bisulphite NH4HSO3 percentage by mass | 65 % Min. |
| Specific Gravity | 1.37 TO 1.39 |
| pH | 4 - 5 |
| Description | Yellow coloured liquid having strong smell of Sulphur Dioxide. |
| Standard Packing |
250 Kgs. HDPE Drum 1000 Liters Intermediate Bulk container (IBC) Special packaging requirements can be accommodated. |
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
Key Benefits
The product provides rapid dissolved-oxygen removal, is completely water soluble, and can be readily incorporated into continuous chemical-injection programs. Effective oxygen control helps reduce pitting, corrosion-product formation and deterioration of carbon-steel pipelines and equipment, while complementing corrosion inhibitors used elsewhere in the treatment program.
For an RXSOL-branded product, a suitable product designation would be “RXSOL Ammonium Bisulfite Oxygen Scavenger 40%” if your finished product contains approximately 40% active NH₄HSO₃.
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.
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