Boiler Treatment Chemicals

When added to boiler feed water in proper concentrations, these products prevent calcium scale by precipitating the preferred hydroxyapatite. A special polymeric Water Hardness Conditioner is included in the blend to fluidize the precipitate and make it non-adherent.

COROGARD 214 with a key characteristic of preventing scale formation in boilers and application as a Hardness conditioner.

COROGARD 218 has key characteristics of maintaining heat transfer surface clean and high efficiency and application as corrosion and scale inhibitors.

 

Alkalinity builders are primarily used to raise the pH level of the water they are placed in. For steam boilers, pH levels must remain high to prevent corrosion, minimize the amount of silica plating in a high-pressure boiler, and maintain the proper efficiency of the boiler. An alkalinity builder is not needed if the feed water has a high alkalinity, but an alkalinity builder is required if the water is too acidic.

 Determination of the pH level of the boiler water is an important step and is done by using a pH sensor. If the pH levels are low and acidic, alkalinity builders will help increase the alkalinity of the water. When there is an increase in the alkalinity of boiler feed water, it helps to protect the feed line and hot well from acid corrosion. This required chemical depends on the pH level in feed water.

To provide complete protection against corrosion in steam condensate systems, we have developed both filming and neutralizing corrosion inhibitors. When added to boiler feed water, filming corrosion inhibitors volatize with the steam and are carried to all parts of the system where they form a non-wet table, protective film on all metal surfaces. This film prevents dissolved oxygen and / or carbon dioxide corrosion by acting as a water proof barrier between metal and condensate. Neutralizing inhibitors also volatize and travel with the steam. When condensation occurs, they neutralized CO2, elevating the PH of the condensate. In essence, filming inhibitors are used to treat the metal in the system while neutralizing inhibitors treat the water flowing through it.

COROGARD 300 and COROGARD 301: Condensate conditioner for pH and scale preventive film; Applied for high pressure boilers like paper mills and petrochemical refinery.

Amines are neutralizing chemicals that can keep the condensate pipe on a boiler from corroding. Condensate water from a steam boiler can be highly corrosive to piping, which can damage the boiler and cause expensive repairs to fix the issue. The three neutralizing amines obtained for boiler water treatment include morpholine, dimethylaminoethanol, and cyclohexylamine. While purchasing these neutralizing amines as a singular component is possible, most solutions will be blended with all three.

When these amines are placed into the boiler water, they will increase the condensate pH, which reduces the possibility of corrosion. Low pH within condensate piping is known to cause high amounts of corrosion, leading to condensate leaks and steam leaks. Once this chemical has been applied to the water in the boiler, it will provide increased boiler reliability, cleanliness, and protection. This chemical will protect all condensate systems, as condensate piping is the main area of focus. To determine if this chemical is needed, it’s recommended to use a pH sensor to test the return condensate.

COROGARD 310 pH Control of Condensate for low pressure boilers.
COROGARD 311 pH Control of Condensate for high pressure boilers.

Hydrazine Hydrate is a fuming, colorless, oily liquid with an Ammonia-like odour. It is slightly or entirely miscible with Alcohol and Water and insoluble in Ether and Chloroform.

Hydrazine hydrate CAS no: 7803-57-8

Synonyms: Hydrazine, monohydrate; Hydrazine hydroxide

Hydrazine hydrate Formula: H4N2.H2O

Molecular Mass: 50.068 gm/mol

Boiling Point: 59-67 °C

Melting Point: -51.7 °C

 Hydrazine hydrate uses:

Hydrazine hydrate is used in boiler water treatment as an oxygen scavenger to control oxygen corrosion. It reacts with dissolved oxygen in the water to form nitrogen and water, which helps prevent corrosion of metal surfaces in the boiler system. Additionally, hydrazine hydrate can control the pH levels in the boiler water, which can also help prevent corrosion.

Small quantities of hardness salts settle down, together with traces of suspended matter, into the feed water during the operation of a steam boiler. Over time, the concentrations of these salts and suspended matter build in the form of a 'sludge,' if not appropriately treated, it can settle onto heat transfer surfaces, eventually 'baking' on to form a hard crystalline scale. A build-up of sludge in steam boilers and boiler water systems causes problems, and its negative impact should be minimised using specialist chemical formulations, i.e., sludge conditioners.

Organic and Polymer-based boiler water sludge conditioners prevent the suspended solids from settling and 'baking' onto important boiler system surfaces. Sludge conditioners keep the unwanted matter (sludge) in solution, which can be removed via the boiler blowdown.

This is a simple solution that treats complete boiler feed water, controls hardness, and prevents scale formation and metal corrosion by controlling pH. It also contains sludge conditioners and oxygen scavengers.

Morpholine (CAS Number: 110-91-8) is an organic amine used as a boiler water corrosion inhibitor. It finds various uses, such as anti-rust agents, cleaning agents, curing agents, manufacturing rubber accelerators, and surface-active agents.

 Molecular formula: C4H9NO

Synonyms: Diethylene imidoxide, Diethylene oxamide

Molecular Mass: 87.12 gm/mol

Boiling Point: 128.9 °C

Melting Point: -4.9 °C

Density: 1.0007 g/cm³ @ Temp: 20 °C

 Morpholine uses:

·         Morpholine contains both amine and ether groups used in various applications. The amine group makes its base, and its conjugate acid is called morpholinium. It appears as a colourless liquid with a fish-like smell.

·         In boiler water treatment, morpholine assists in increasing the pH of boiler feed water to protect the boiler against corrosion. It is used as a boiler inhibitor intermediate in the form of a colourless liquid.

This is a simple powder that treats complete boiler feed water, controls hardness, and prevents scale formation and metal corrosion by controlling pH. It also contains sludge conditioners and oxygen scavengers.

We offer Catalysed Hydrazine Hydrate for improved oxygen scavenging for the use of Boiler water treatment.

 

Specifications can be offered as per customers requirements.