DEHA (Diethylhydroxylamine) - Water Chemicals
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DEHA should be recommended in accounts when wet storage of a boiler is being considered. Use 500 mg/L DEHA (active) with morpholine to adjust the pH to 10.0-11.0
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Chemtex's Deha is fed neat (undiluted) continuously to the boiler feed water depending upon the dissolved oxygen content, temperature and pressure of boiler. Theoretically the dosage is 1.3 parts active ingredient for every part of oxygen, but in application, a dosage …
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•Pressure range – 60-84 bar • Critical needs – High quality makeup water • External pre-treatment through distillation and mechanical deaeration – High purity steam to the turbine – No excess hydrate alkalinity – Precise control of total system water treatment High Pressure Boilers • Steam cycle
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DEHA is used in boiler water treatment applications, as an oxygen scavenger for medium and high pressure boilers. DEHA also functions as a free radical scavenger in polymerization, it is a short stopper in the production of styrene butadiene rubber.
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such systems. The volatility of DEHA increases from 100 psig to 300 psig and then falls gradually at increasing pressures. DEHA, therefore, behaves in a similar manner as neutralizing amines. It would, therefore, be expected that volatility at high pressure will still be for giving residuals in steam.
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Use of ammoniated citric acid for the chemical cleaning of high pressure boilers: Pre-commissional passivation. Before a boiler is put into service, it is customary to follow a "pre-commissional" chemical cleaning procedure. A newly constructed boiler will be contaminated by particulate debris, oils and greases, and rust.
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Boiler Water Treatment Chemicals. As well as being a service company Feedwater also manufactures and supplies a range of high-quality boiler water treatment chemicals for UK and export customers. Our chemicals are suitable for land, marine and heritage steam boilers.. A badly treated steam boiler is a potential bomb, so getting the feed water quality and boiler water chemistry correct is
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7.0 Chemical Treatment - Steam Forum
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Aug 02, 2015 · Low pressure boilers operate at 15 psig or below. Boiler capacity Boiler capacity is expressed in the following units. 1. Horse Power. 2. Pounds of Steam per Hour 3. BTU per Hour 1HP means energy to convert 34.5 pounds of water to steam from (and at) 212o F at sea level. High pressure boiler treatment The treatments for high pressure boilers
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Polymer base multi purpose boiler water treatment chemical for 18kg to 90 kg/cm2. on total W.H.C. of boiler. 7-12 PPM. Order. HYDROCHEM. LIQ. Cyclic amine base chemical for boiler condensate water treatment for 18kg to 90kg/cm2 w.p. boiler. on total W.H.C. of boiler. 5-7 PPM.
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Dec 02, 2015 · The workhorse chemical for many years was hydrazine (N2H4), a reducing agent which reacts with oxygen as follows: N2H4 + O2 → 2H 2 O + N2↑ Hydrazine proved advantageous because it …
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May 05, 2015 · Two types of AVT are; i) AVT (R) Using Ammonia (NH3) and as reducing agent like Hydrazine (N 2 H 4 ), ii) AVT (O) same as AVT ® minus reducing agent i.e. N 2 H 4. Ammonia is commonly used cheaper material to maintain pH in boiler water. N 2 H 4 is used to scavenge Dissolved Oxygen and protect Copper alloys from Ammonia.
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ACURO's Alkalinity builder cum pH adjuster is designed for use in all types of medium to high pressure steam boilers where additional alkalinity is required for system maintenance.It effectively increases boiler water pH and alkalinity levels. It is used as part of a balanced "phosphate,""chelant,""carbonate," or "polymer" cycle boiler water treatment program.
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Oxygen scavenger boiler water treatment programs are essential for any company that utilize boilers or steam equipment for their everyday operations. DEHA or Diethylhyroxylamine is an organic, volatile oxygen scavenger mainly used in high pressure boilers. It is a pale yellow transparent liquid and a derivative of hydroxylamine.
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boiler equipment. Maintaining Water Quality in High-Pressure Boilers . Dissolved oxygen, or DO, is one of the most important water quality parameters to control in a boiler system. It is the primary corrosive agent of steam-generating systems. Even low concentrations of …
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7.0 Chemical Treatment - Steam Forum
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DIETHYL HYDROXYLAMINE AS OXYGEN SCAVANGER FOR BOILER WA…
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US4711726A US06/947,060 US94706086A US4711726A US 4711726 A US4711726 A US 4711726A US 94706086 A US94706086 A US 94706086A US 4711726 A US4711726 A US 4711726A Authority US United States Prior art keywords copolymers passivation boiler ppm copolymer Prior art date Kefid Legal status (The legal status is an assumption and is not a legal conclusion.
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