Water Treatment Chemicals

Boiler Water Treatment Chemicals

Cooling Water Treatment Chemicals

Processing Chemicals

1. Partreat - 801
2. Partreat - 660
3. Partreat - 400

BOILER WATER TREATMENT CHEMICALS

Improving Your Boiler Efficiency & Reducing Energy Costs

Each process house spends between 60 Lacks to 100 Lacks a year on Boiler & Thermopak fuels. Most of the boilers run on very low efficiencies due to various losses. A detailed boiler efficiency calculation & various losses involved are given in appendix 1 & appendix 2.

Out of these the boiler losses which can be be easily reduced are :

Surface Radiation losses :can be reduced by checking & redoing the insulation on the boiler. These losses should be less than 2%.

Dry Flue Gas (Stack) losses : When solid Paras like Lignite, Coal & Bagasse are used, solid fouling deposits are formed on the fireside tubes of the furnace. These deposits prevent the heat to be transferred to the fireside tubes & hence the heat is instead lost to the stack chimney. A 20 mm slag deposit can increase the Para firing rate by as much as 6%. These losses can be practically confirmed by measuring the stack temperatures & using the efficiency equation in the appendix 1. A drastic increase in stack temperatures by more than 25 – 30oC will be observed in most cases. This further leads to production losses by frequent shutdowns to clean these slag deposits. Besides these deposits also cause corrosion of the tubes due to the presence of Sulfur & Vanadium.

Unburnt Carbon in Ash Refuse Losses :More than 8% Carbon is lost in ash due to clinker formation & incomplete combustion of the coal. Solution: Thermax Ltd. has developed state of the art Para additives viz. Thermomix C (for Imported Coal) & Thermomix BGL (for Lignite & Bagasse) to eliminate all of the above mentioned Para related problems. They help n reducing energy costs as well as reduce preventive maintenance. As seen in Appendix 1 & 2, these products can improve the boiler efficiency considerably by more than 5 – 6%.

Blow Down Losses : As seen in the appendix 3, even a softened tanker feed water has a high TDS of 800 – 1000 mg/l. This amounts to a huge blow down loss of 25% if the recommended boiler drum TDS of 5000 mg/l to be maintained. Even S.M.C. water which has a TDS of 300 mg/l, would mean that Blow down losses would be considerable at 6.4%. Reverse Osmosis plant or D.M. plant can reduce these huge losses to to less than 0.5% as shown in the appendix 3. This in terms of monetary savings per year can be more than 7.5 – 10.5 Lacs for Solid Paras & as high as 14 Lacs if the boiler is Natural Gas fired. Thus payback period for an R.O or a D.M. plant is less than a year.

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Please feel free to contact us if you need any clarifications & a copy of the computer software to calculate your boiler efficiency.

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COOLING WATER TREATMENT CHEMICALS

The range is a combination of a polymer and an organo - inorganic formulation to keep cooling water system free from scaling & corrosion & micro bacterial growth.

Corrosion inhibitors : A blend of various chemicals that protect metal from different types of corrosion.

Anti-scalent :These are polymeric formulations designed for increasing the solubility of calcium & magnesium. They prevent the deposition of hard scales due to hardness causing salts and do not allow that scales to attach to the metal surfaces. hence heat transfer surface is kept clean. With the help of these formulations cooling water system can be operated at high COC with minimum blow down.

Dispersant : The blend of powerful dispersants and penetrates along with surfactants that loosens and removes existing deposits from the system

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PARTREAT - 801 Prevention of corrosion in JetDyeing Machine

Problem : Moderate to severe corrosion of Stainless steel material has recently been observed in many Jet Dyeing machines. This is experienced as highly problematic pitting & abrasion of the steel surface, which results in pulling of the fabric threads & pilling & damaging the feel of the fabric. If this corrosion is unchecked, this continuous corrosion over a period of time, causes steel failure & even serious accidents. In fact 50 Jet Dyeing machine explosions have occurred in Surat in the last five years.

The main causes of Jet Dyeing corrosion are :

• Usage of inorganic acids like Hydrochloric acid, acid substitutes. In few mills these substitutes were found out to be corrosive cocktails of mixtures of Sulfuric & Phosphoric Acid!!
• High TDS of water, especially the high Chlorides & Sulfates concentrations in water itself causes severe corrosion even of SS 316.
• Corrosion of various S.S. under the influence of various acids, is attached herewith. ( Reference – Perry's Handbook for Chemical Engineers )

PARTREAT - 660

Paracid W : is an excellent eco-friendly substitute for Acetic Acid, Formic Acid, Citric Acid & Tartaric Acid used in dyeing, printing & Padding operations of Disperse Dyes on Polyester. Acetic Acid, Citric Acid & Tartaric Acid have very high COD, BOD, which pollute the environment. Paracid W is an eco-friendly option which has much lower COD, BOD & hence reduces your environmental pollution loads at source.

Above all Paracid W gives the desired pH of 4.5 – 5.5 with almost 40% lower quantities of Acid, with the same depth & brilliance of the other two acids.

Application : Use 40 – 50% of Paracid W in dyeing, printing & finishing to get the desired pH of 4.5 – 5.5. The concentration would depend upon the printing gum, water alkalinity & other additives.

Appearance : White crystals.

Packing : 25 / 50 Kg Bags.

Pretreatment of fabrics is essentially the most critical stage in any textile wet processing industry. Scouring of fabrics is one of the stages in the pretreatment cycle.

ParaScour Stain XM is a strong wetting cum Stain Removing, Scouring & Emulsifying Auxiliary. The unique combination of choicest emulsifiers & surfactants ensures that dirt & grease are efficiently removed from the fabric & held in the liquor bath; i.e. not allowing redeposition of the dirt & grease onto the fabrics.

Properties :

Appearance : Pale Yellow Liquid

Chemical Appearance : Non Ionic

pH : 7.0

Stability : Excellent Stability with water to any extent.

Scouring & Stain Removal : In the scouring of cotton fabrics, polyester fabrics, ParaScour XM provides extremely good results.

For Cotton Fabrics : – 0.5 – 1.0% owf is recommended.

For Polyester Fabrics : 2 – 2.5 gpl at 80oC – 120oC for 30 – 45 minutes.

Packing : 35 & 50 Kgs Carboys.

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PARTREAT - 400

ParaScour 400 : is an excellent eco-friendly sequestering agent to counter various problems in processing related to water hardness & presence of heavy metals. It has the following advantages over conventional sequestering agents :

• Higher Chelation Value
• Acidic pH
• 90% Reduction in COD as compared to EDTA
• Higher Capacity to Chelate Fe & Cu
• Especially suitable for reuse of effluents
• Higher Brilliancy
• Prevents Crystallization in AQ Dyes

Application : Use 0.5 – 2.0 gm/l of Partreat 400 in scouring, dyeing, printing & finishing to nullify the ill effects of water hardness & presence of heavy metals in water. The concentration would depend upon the water hardness & presence of metals.

Appearance : Yellow liquid.

Packing : 65 Kgs HDPE Carboys.

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