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Euroshore article

{ 20 maart, 2017 }

Euroshore Newsletter March, 2017

A revolutionary breakthrough in demulsifiers


Demulsifiers, or emulsion breakers, are a class of specialty chemicals used to separate emulsions, for example, water in oil. They are commonly used in the processing of oil-water mixtures originating from shipping, which is typically produced along with significant quantities of saline water.

The secretary general visited WVT Industries in Aartselaar near Antwerp. The company was established by Ward Van Thielen in 1997, and has grown rapidly into a leading manufacturer and supplier to the industrial cleaning market. The company serves various industry sectors all over Europe and beyond such as marine (de-greasers, dispersants…) waste water treatment (demulsifiers) and transportation sector. Visit

The dynamic company focus on tailor made solutions for each typically user and ensures that all its cleaning products and chemical specialties are biologically degradable and bio-ergonomic. WVT Industries became a leading supplier within a demanding environment and meanwhile active in more than 32 countries.

Today, with proud, they announced that due to intensive research, they have developed a UNIQUE demulsifier that is very effective and needs a very small dosage of ONLY 100 ppm Under the MARPOL Convention Annex I, oil tank washing residues or oil-contaminated water must be treated before being discharged. Its new Demul 40CP , separates water in oil and oil in water mixtures – quicker and at a lower cost than ALL competing products.

Under 1% water content

MARPOL oil is a water-in-oil emulsion with its stability depending on the water content, which is typically between 2.4% to 50.8%. Adding the new Demul 40CP to MARPOL-oils significantly speeds up the decantation process and attains fuel with a water content of less than 1%. In less than twelve hours, Demul 40CP optimizes the calorific value of the recycled oil, and increases its re-sale value . To obtain optimum results, the water-in-oil emulsion is heated up until 90°C before adding Demul 40CP.

Even at 35 ° until 50° C you could obtain excellent results (interesting for treating low flash)

Smaller dosages, better results

With 100 ppm Demul 40CP , a water content of under 1% is obtained in less than 12 hours.
The oil-water emulsion is heated up to 90°C before adding Demul 40CP.

The optimum demulsifier dosage ALWAYS depends on the specific nature of the oily waste. To determine the exact percentage needed, WVT Industries analyses waste samples in its own laboratory, and offers case-by-case recommendations. Typically, the recommended Demul 40CP-dosage varies between 100 and 400 ppm to the total amount of the oil-water emulsion. If higher dosages fail, the dosage should even be reduced: lower dosages usually improve the demulsification process.

Customer case: 0,42 % water content with ONLY 250 ppm Demul 40CP

The oil-water sample had originally 41.43 % free water. After adding the WVT Demul 40CP in dosages of 250 ppm, the water content in the decanted fuel decreased to 0,42%. The water-in-oil emulsion was heated to 90 °C, before adding Demul 40CP. Without changing the variable of temperature, these results were obtained in 12 hours. The customer reported to be happy with the first obtained results, and will continue to optimize all variables.

Reduced processing costs

Demul 40CP significantly reduces processing costs. It replaces the use of cost burdening centrifuge applications. And it reduces the treatment time to less than twelve hours, so that larger volumes can be treated over a much shorter time.

Sustainable solution

An organic liquid formulation of surfactants and dispersants, Demul 40CP stays with the fuel – not with the water phase. The decanted water can be discharged without any detrimental impact on the marine environment. Combustible, non-abrasive, and non-ash-forming, Demul 40CP improves the quality of fuel, while protecting the workers handling the product.

Advantages Demul 40CP

  • High caloric fuel value, increased burning quality and re-sale value
  • Reduced disposal costs
  • Compliance with MARPOL 73/78, Annex I: preserving the marine environment, contributing to the conservation of resources

Odour neutralizer reduces downtime

Apart from demulsifiers, WVT Industries also produces water based liquid odour neutralizers to prevent odour nuisance or irritating fumes from escaping. Its O-Scav H2S neutralises the H2S and toxic effects within water treatment plant. The chemical formulation is 100% bio-degradable. Combining all cleaning procedures in one chemical application, equipment downtime is significantly reduced.


Source: WVT Industries , Industrieweg 6  2630 Aartselaar.
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