Film-forming amines-based treatment is an alternative to conventional anti-corrosion water treatment methods. Its action is manifested by creating a microscopic, hydrophobic film on the metallic surface using polyamines, which are naturally connected to lose nitrogen atoms present in the metal.
This prevents oxygen from attacking the metallic surfaces while improving heat transfer. And since the amines are volatile, they protect the whole system, not only the area where the oxygen scavenger is injected.
For an improved action and depending on the state of the plant and current chemical regime, FINEAMIN formulations may contain various dispersants and alkalizing and neutralizing amine blends.
Applying our unique FINEAMIN anti-corrosion and anti-scale solutions, you have the opportunity to replace toxic and hazardous products like hydrazine, considered to be carcinogenic and phosphates, which are not environmentally friendly.
Over and above these safety and environmental benefits, using FINEAMIN typically protects the whole water-steam cycle. It reduces the quantity of blow-down (as there are no solids to dispose of), and improves heat transfer because of a better magnetite layer, thus reducing energy needs.
Using and storing FINEAMIN chemicals is extremely easy, as they do not impose any special measures for workers or warehouses.
FINEAMIN products come as “all-in-one” mixtures – one product with multiple components that decompose according to temperatures along the system, offering unparalleled protection in the exact place.
99% of the facilities use FINEAMIN products, the dosage is made through only ONE point.
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Using polyamines for water conditioning in the distant heating network and cogeneration plants are a green alternative to the previous chemical regimes involving hydrazine and sodium phosphate.
FINEAMIN® chemicals come as “all-in-one” products with multiple components – film-forming amines, alkalizing amines and polyacrylates with cleaning and preventing effects.
FINEAMIN® treatment disperses any existing iron oxide deposits and inhibits corrosion inside the pipes network by forming a thin magnetite film on all heat transfer metal surfaces. The newly formed magnetite layer obstructs oxygen from getting to the metal parts; new deposits cannot be built up anymore as the polyamines barrier “repels” any water-carried impurities, and pH is kept under control.
The district heating supply water goes through an endless cycle inside a closed pipeline system. And FINEAMIN® products travel with it, protecting all the individual parts that local or distant heating city network all along that cycle:
FINEAMIN polyamines-based inhibitors improve the operation of high-pressure boilers during frequent startups and shutdowns. After a shutdown, steam has higher purity allowing turbines to enter directly into operation.
Furthermore, using polyamines with steam condensate from the city center to the district heating plant can determine the reduction in iron content and increase the lifespan of the filter cartridges for condensate cleaning resulting in cost savings and plant availability.
The conversion from hydrazine to polyamines does not require much technical effort: the existing dosing tanks and pumps can be used. Working with polyamines and storing them does not require any special safety measures.
FINEAMIN® products are tested by the German Institute of Hygiene (DIN EN 1717 and DIN 1988-100) and approved for use in heating systems with domestic hot water production.
One very detailed paperwork about the Munich district heating network (using Fineamin since 2007) describes the effects of polyamines: “20 years of experience with polyamines” – Dr. Karin Thelen, Leitung SWM-Labor, Stadtwerke Munchen GmbH; Dipl. – Chem. Wolfgang Schontag, Leitung SWM-Labor, Munchen.
In most cases, film-forming amines-based treatment is a sufficient and environmentally friendly alternative to conventional anti-corrosion water treatment methods like hydrazine. Its action is manifested by creating a microscopic, hydrophobic film on the metallic surface using polyamines, which are naturally connected to loose nitrogen atoms present in the metal. This prevents oxygen from attacking the metallic surfaces while improving heat transfer.
Regarding the particular case of cooling systems and their harsh operational conditions, the polyamines represent the anticorrosion solution as one of the components of a more complex water treatment program. Used along with dispersants, phosphonates and co-polymers, polyamines (FINEAMIN 06) increase their effectiveness and protect the whole system against corrosion and future deposits by forming a barrier between the metal and the water carrying all kinds of contaminants.
Hot, humid and overcrowded with nutrient substances, cooling towers are the ideal environment for unwanted biological growth. Microorganisms such as algae, bacteria, and fungi that enter the system through the water supply or air drawn through the tower contribute to forming a biofilm on all surfaces, reducing thermal efficiency.
Controlling and preventing such kind of biological accumulation can be done by using FINEAMIN biocides injected as shock treatments, along with dispersants, surfactants, and non-ionic products that eliminate the existing bio deposits.
Build up of minerals in the cooling tower water and pipes clogging with debris and dirt are two of the main things that affect heat exchange surfaces and prevent the even distribution of water throughout the cooling system, increasing operational costs.
Crystal formation and deposits can be inhibited by hardness stabilizers (FINEAMIN 91), mixtures of polymers and copolymers, phosphonates and copper inhibitors that modify crystal growth by disturbing the nucleation process. Deposits are blocked, and the modified crystals are prevented from sticking to each other and metal surfaces. These products are used with dispersants and alkalizing amines (FINEAMIN 06).
