HFX® Residual Fuel Additive

Improves combustion
Increases flame temperature
Cleans up deposits and prevents formation of other
Prevents the formation of viscous emulsions and their stratification
Removes water
Reduces emissions of CO and SO3

HFX® is a balanced compound of an organic dispersant, detergent, and a surfactant that are blended with a highly effective, combustion improving catalyst in a pure hydrocarbon base. Each additive within this compound is designed to improve particular performance characteristics found in residual fuel.

Features Advantages Benefits
Improve combustion Reduces fuel consumption Lower fuel costs
Clean varnishes,gums, deposits and prevents others Clean the combustion system (from storage tank to the burner) Lower maintenance costs
Remove water Reduce car maintenance A more powerful machine, more efficient
Prevents the formation of viscous emulsions and their stratification Reduce CO and SO3 emissions „Peace of mind”
Reduce downtime for maintenance Lower expenses in terms of green certificates
Operation of the engine in correct parameters

The flowability of residual oil stocks is improved by the organic dispersant in HFX®.
The formation of viscous emulsions and the stratification that often occurs in residual fuels is greatly reduced. Dispersing long chain, heavy hydrocarbons prevents them from settling into sludge. Tanks, lines, nozzles, and pre-ignition components remain free of sludge and deposits.

The varnishes, gums and carbon deposits are reduced by the detergents in HFX®.
Both pre-ignition and post-ignition deposits are reduced. Cleaner fuel system components and burner surfaces mean improved performance.

The water in residual fuels passes through delivery and ignition systems because of the surfactant in HFX®. 
The surface tension of condensation and free-standing water is reduced (proven through scientific tests), allowing it to pass through the system with atomization of the fuel at the burner nozzles. This inhibits corrosion in the fuel system and aids the combustion process.

The formation of slag, SO 3 and the reduction of excess air results in significant savings in fuel consumption. All are improved by the combustion improving organic catalyst in HFX®.
The combustion catalyst is a solution of organic compounds which are dissolved in a pure hydrocarbon solvent, making them mixable with oils. These organic ions dissolved in solution cause more rapid and complete burning of the fuel and provide significant reductions in the corrosive effects of high sulfur, high vanadium and sodium content of the residual fuel.
Control of deposits during the combustion process is effected by the organic catalyst. This catalyst changes the nature of the vanadium oxides formed during the combustion process. The vanadium pentoxide, which has a relatively low melting point, is the primary cause of slag formation in combustion chambers. In liquid or molten form, it acts as a binder and a powerful corrosive agent. The organic catalyst in HFX® reacts with the vanadium to form high-melting-point vanadates that deposit in dry friable form, thus inhibiting the formation of molten vanadium slag.
Furthermore, existing deposits containing vanadium will usually be reached by the action of the HFX® catalyst’s vapors and drop off in pieces over a period of a few weeks.

How does the organic catalyst in HFX® effect a reduction of SO3 emissions, the primary cause of acid rain? 
When molten vanadium pentoxide is present, it acts as a catalyst to change the SO2 in the presence of excess air to the more objectionable sulfur trioxide (SO3), which then combines with moisture to form sulfuric acid. This, of course, has a very serious corrosive effect on metal surfaces and the environment. The dry, friable form of vanadates are deposited far less on combustion chamber surfaces, thus substantially reducing the conversion of SO2 to SO3
Additional improvement in the SO2 / SO3 ratio can be made by the reduction of excess air. The combustion improving capability of HFX® will allow air requirements to be reduced. Less air (and therefore less unused oxygen in the ignition process) causes reduced SO3 formation.

The combination of dispersants, detergents, surfactants, and the combustion improving catalyst in HFX® adds up to lower hazardous emissions and improved fuel consumption.
Lower air requirements and more efficient burning of fuel stocks add up to significant savings. The combustion improvement capability of HFX® will allow excess air to be reduced. This helps overcome heat loss up the stack by reducing its velocity past the heating surfaces.


In the pre-ignition – from storage tank to the burner

• Prevents the accumulation of deposits in reservoirs

• Provides cleaning of power line, a preheating zone, filters

• Provides a uniform flow of fuel to the burner for best combustion

• Prevents corrosion

• Convert “mud” already present in the fuel that can be burned

• Recover Lost reservoir storage capacity due to deposits without interruptions in operation for maintenance

Combustion zone - from flare to chimney

• Improves combustion

• Reduce pollution by minimizing the amount of unburned fuel and SO3

• Prevents slag

• Removes existing

• Eliminates clogging of tubes

• Prevents corrosion on metal surfaces

• Keep clean combustion chamber, reducing downtime for cleaning and associated costs

Laboratory tests confirm the value of HFX® as an additive to residual fuel stocks.

Combustion tests  conducted andverified in a laboratory setting resulted in a significant reduction  of unburned residues and increased heat release.

Evaluation of the effects of the combustion catalyst on ash and residues.

To evaluate the effects of the organiccombustion catalyst on ash and residues, measured samples of untreated oils were burned in a combustion chamber with air introduced at atmospheric pressure.

The unburned residues were then collected and weighed. The melting point of the residues were determined. The percentage of unburned residue was 10.1% for untreated Bunker C versus 6.5% for samples treated with HFX®. The ash melting point was  700°-760°C for the untreated fuel  and 1040°-1200°C for the treated fuel.

This resulted in an increase of nearly 50% of the melting point of residues and indicates that the residue will be dryer and will not stick to heating surfaces.


Evaluation of the combustion catalyst on heat release.

A typical test to illustrate increased heat release is the Parr Oxygen Bomb Calorimeter Test.  The purpose of this test is to compare the rate of combustion and the amount of heat release for treated and untreated Bunker C oil. Oxygen has been adjusted to approximate the available oxygen in a typical efficient oil  burner. A measured sample of untreated Bunker C was burned and  the rate of heat rise recorded. The  same oil was treated with a measured dosage of the combustion catalyst used in our product and the test was repeated.

During the test when untreated oil was burned, it left sticky, gummy residues. When treated oil was burned, the sticky, gummy residue was not found and the amount of carbon was greatly reduced.

From the accompanying illustration, one can see the increase in heat release for the treated oil during the first period shown may be calculated by integrating to determine the difference in the areas of the two curves. This calculation indicates that approximately 14.6% more heat was obtained from the oil treated with our combustion catalyst. The slope of the temperature rise curves indicates the rate of combustion. The rate of heat rise in the data below  is 0.15º/second for the untreated fuel, and combustion .025º/second for the treated fuel, an increase of about 60%  in the rate of combustion.

The overall conclusion from this  data illustrates the effectiveness of  HFX® Residual Fuel Additive for use in all grades of fuel.

Find out how HFX® can help solve your oil problems.
The varied uses of the many grades of oil stocks throughout the world make it impossible for a single formulation, such as HFX®, to be able to solve every need. Zynergo is ready with the technical advice and formulating capability to respond to your particular performance problems. Please e-mail us at office@zynergo.com regarding any questions about HFX® or our other products.