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E and S Group

Fuel Filtering Cleaning

Fuel maintenance in storage – mobile polishing systems and products


E&S are a leading exponent of ensuring stored fuel is water, sludge and microbe free using a combination of a custom built fuel filtration and polishing system and specially formulated catalysts.

The mobile fuel polishing and tank cleaning system (MTC) is designed to effectively remove harmful sludge, water and other contaminants from storage tanks. The system, involving the use of a fuel catalyst, also re-conditions the stored fuel at the same time, saving on its removal and replacement with fresh product.

Mobile polishing stystems


Problem: stored fuels naturally deteriorate:

Fuels are susceptible to natural deterioration like any other organic fluid. Oxidation, water, and microbes all contribute to reducing fuel quality and forming tank sludge. The problem is exacerbated with fuels having a higher water content.

Bacterial build up is a major problem for many fuel storage systems. In addition, water ingress, air borne contaminants like dirt and grit all combine with oxidised fuel particles to form sludge.

Fuel Polishing before and after

These unwanted by-products cause clogged filters with consequent disruption to operations in de-commissioning of tanks for cleaning, causing business disruption and loss of income. In use, contaminated fuel can corrode injectors, pumps and tanks leading to incomplete combustion, carbon build up, smoke, loss of power and even engine failure.

Replacing contaminated fuel is now more expensive than ever given the current high cost of gasoline oil and diesel.

Solution: a combination of tank & fuel filtering cleaning with an added fuel catalyst:

E&S have a proprietary mobile fuel conditioning and tank cleaning system effectively removing harmful sludge, water and other contaminants from storage tanks and extending the useful life of the fuel.

The system preserves the integrity of stored fuel, improves filterability, reverses the process of tank sludge build up, removes water, preserves tank cleanliness and maintains peak engine performance. The use of a mobile, safe and reliable cleaning unit on site is convenient operationally and eliminates the need for conventional tank cleaning.

The ‘fuel dialysis’ system circulates and cleans fuel by pumping it from the tank, processing it through the cleaning unit and back into the tank. The fine filters in the unit remove sludge, water and other impurities in a continuous process until all contaminants are removed, the fuel sampled, tested and declared clean and fit for purpose. The process cleans the tank at the same time, as well as its contents.

The addition of a fuel catalyst kills any fungal growth and bacterial build up which blocks filters, improves the fuels combustibility and restores it to pristine condition. It also enhances lubricity, inhibits corrosion and reduces harmful exhaust emissions.

By firstly adding a catalyst to dissolve the heavy sludge material and make it more filterable, then circulating the fuel through the cleaning machine to remove all harmful particles – and cleaning the tank at the same time, and then adding a fresh dose of catalyst, will ensure the fuel remains in pristine condition at all times. Regular sampling thereafter will confirm when a re-dose of catalyst will be required.

In brief, the E & S tank & fuel ‘dialysis’ cleaning system will:

  • Clean storage tanks without the need to de-gas and physically enter the confined space
  • Clean the fuel – removing in a continuous process sludge, water and other impurities
    Extend the useful life of the stored fuel – eliminates the need to dispose and replace with fresh product
  • Improves operational efficiency
  • Contributes to site safety
  • Reduces costs
  • Catalyst addition eliminates bacterial build up and renders the fuel fit for use at all times
  • The combined cleaning and catalyst addition is the complete answer to the problem
  • Helps customers with their environmental compliance - clean fuel improves filtration, combustibility and stability, lowers emissions and extends component life

© Copyright 2007 E and S Environmental Services Ltd