Cavitation
Area of application - Alternative fuels
Area of application - Alternative fuels
Alternative fuels
In the field of alternative fuels, RAPTECH's innovative cavitation technology with the CaviFlow® inline module offers a solution for the production of (marine) fuel emulsions based on homogenized bunker fuel oils (HFO | HSFO | VLFO | ULSFO) or renewable biofuels. The Future Fuel blends completely dispense with additives and are fuel-efficient and environmentally friendly thanks to a significant reduction in emissions of up to 25%. The bunker fuel emulsions naturally meet the ISO 8217:2024 requirements.
The effective blending of biofuels with traditional fossil fuels using the CaviFlow® inline module is an economically viable measure for reducing greenhouse gases without the need for a high investment and conversion budget. Fuel emulsions do not require any changes to engines, on-board fuel supply systems or within the bunker infrastructure. Their blend ratio is adaptable depending on the season.
Another advantage: the reduced fuel consumption means that IMO emission standards are met and shipping companies have to purchase fewer certificates under the EU Emissions Trading System (EU ETS).
The effective blending of biofuels with traditional fossil fuels using the CaviFlow® inline module is an economically viable measure for reducing greenhouse gases without the need for a high investment and conversion budget. Fuel emulsions do not require any changes to engines, on-board fuel supply systems or within the bunker infrastructure. Their blend ratio is adaptable depending on the season.
Another advantage: the reduced fuel consumption means that IMO emission standards are met and shipping companies have to purchase fewer certificates under the EU Emissions Trading System (EU ETS).
Advantages of fuel emulsions with CaviFlow®
-100%
Addition of
additives
additives
-25%
Reduction
of emissions
of emissions
Homogenized fuel emulsions for shipping and industry
- Stable emulsions HFO
- Stable emulsions HSFO | VLFO | ULSFO
- Biodiesel
- Bioethanol
- Pyrolysis oil from plastic waste
- Hydrogenated vegetable oil HVO
- Glycerine
- Water-in-fuel emulsions
- Upgrading heavy fuels
- Fuel reforming
- Improving fuel atomization
- additives
Conformity with ISO 8217:2014
(Specification for bunker fuels)
(Specification for bunker fuels)
Immediate use
CaviFlow®
CaviFlow® inline modules are flexibly scalable for flow rates of up to 100 m3/h. With thread or flange for plug & play use in existing systems.
No moving components are used inside the module - for minimum maintenance and maximum operational reliability.
More complete combustion
Reduced emissions through alternative fuels
Alternative RAPTECH fuel emulsions have significantly lower emissions - thanks to their improved combustion efficiency, lower flame temperature and higher oxygen content. This is due to the component mixing with the CaviFlow® inline module and the ultra-fine homogenization of the fuel oils by means of cavitation treatment.
The reduction of emissions is becoming increasingly important in the context of emissions trading systems such as the EU Emissions Trading System (EU ETS). With maritime fuel emulsions from RAPTECH, shipping companies can comply with current IMO emission standards and advance their sustainability goals - without high retrofitting costs.
- 25% reduction in NOx and SOx emissions
- 30% reduction in particulates and carbon dioxide (CO₂)
- Fewer fees for emission certificates
The reduction of emissions is becoming increasingly important in the context of emissions trading systems such as the EU Emissions Trading System (EU ETS). With maritime fuel emulsions from RAPTECH, shipping companies can comply with current IMO emission standards and advance their sustainability goals - without high retrofitting costs.
Cost savings
Sustainable fuel consumption through alternative fuels
The improved fuel atomization and combustion efficiency of our alternative fuels also lead to lower consumption of RAPTECH fuel emulsions. The lower residues are also due to the ultra-fine homogenization of the fuels by means of cavitation technology in the CaviFlow® inline module and the sensible combination of fuel components.
- Protects the environment
- Minimizes energy costs
- Requires fewer EU ETS emission certificates
Reduce emissions - maintain systems
Retention of the on-board fuel systems
Adding biofuels to fossil fuels and homogenizing them using cavitation technology is an economically viable measure for reducing greenhouse gases. Unlike new alternative fuels, the CaviFlow® inline module does not require a high investment and conversion budget. The modules can be easily integrated into existing systems via a flange or threaded connection. Maintaining the existing on-board fuel systems and bunker infrastructure in shipping offers decisive advantages:
- Low investment costs: ships are already equipped with all the necessary components such as fuel processing units and pipelines that work with traditional fuels
- On the port side, there are globally established and globally available logistics for the bunker supply of traditional fuels. By using existing systems, costs can be avoided and a high level of supply security is guaranteed
- In addition, traditional fuel systems are characterized by their technological maturity and high operational reliability. This not only reduces the technical risk during operation, but also facilitates maintenance and spare parts supply
Clean facilities
Reducing operating costs with alternative fuels
Alternative fuels from RAPTECH have further concrete cost savings to offer. Their clean combustion extends the maintenance intervals of engines and technical systems, which suffer less from contamination caused by sludge and carbon deposits.
- Less smoke and soot development
- Improved lubricity
- Less contamination in engines and systems
Environmentally friendly
Alternative fuels without additives
RAPTECH deliberately avoids the addition of harmful additives such as emulsifiers, surfactants or polymers in its alternative fuel emulsions.
- Chemical additives impair the combustion properties
- Additives increase the process parameters and therefore the operating costs
- Additives pollute the environment
Seasonally adaptable
Flexible mixing ratio of our alternative fuels
The blend ratio of ISO 8217:2024 RAPTECH fuel emulsions is flexible and seasonally adaptable. This ensures a number of strategic and operational advantages, especially in shipping with changing environmental and operating conditions:
- By specifically adjusting the mixing ratio with the CaviFlow® Inline module , the ignition quality, viscosity or oxygen availability can be optimized - depending on the outside temperature or engine load
- Inexpensive components (e.g. biofuels, by-products) can be added flexibly depending on availability and without being dependent on price fluctuations
- In the event of stricter environmental regulations or journeys through emission control areas (ECA), the proportion of low-emission components can be increased depending on the situation.
Available worldwide
Safe transportation and storage of alternative fuels
RAPTECH biofuel emulsions are extremely stable. This means that they can be stored, pumped and transported at much lower temperatures than conventional HFO.
Thanks to their global and widespread availability, there is also no risk of supply bottlenecks in remote ports - in contrast to new alternative fuels, for which the infrastructure is still being developed.
- In the event of a leak, emulsion fuels easily dissolve in water
- This prevents major environmental damage
- Easier solubility makes handling safer for personnel
Thanks to their global and widespread availability, there is also no risk of supply bottlenecks in remote ports - in contrast to new alternative fuels, for which the infrastructure is still being developed.
Technology and research highlights of our alternative fuels
Results and parameters
RAPTECH alternative fuel emulsions
The cavitation processes for the production of RAPTECH (Bunker) Future Fuels were tested and verified at the company's own - and in Europe unique - UADA pilot plant.
| Properties & test methods | HFO 380 | HFO biodiesel |
| Brennwert ( DIN 51900:2023) | 40.598 MJ/kg | 42.396 MJ/kg |
| Density at 15 °C (calculated) | 989.6 kg/m³ | 969.7 kg/m³ |
| Kinematische Viskosität bei 40 °C (DIN EN ISO 3104:2024) | 600 mm²/s (calculated) | 151.3 mm²/s |
| Schwefel (DIN EN ISO 14596:2007) | 1,78% | 1,35% |
| Flammpunkt (DIN EN ISO 2719:2027) | 122 °C | 160 °C |
| Gesamtrückstand (ISO 10307-1:2009) | <0.07% | 0,01% |
| Pourpoint (DIN EN ISO 3016:2019) | 0°C | -21°C |
| Parameter | HFO 380 | HFO biodiesel |
| Preheating temperature | 90 °C | 0 °C |
Environmentally friendly and sustainable: Alternative fuels from RAPTECH impress with a significant reduction in greenhouse gas emissions of up to 25%.
| Parameter | Conventional HFO | VVLSFO | RAPTECH fuel emulsions |
| ISO 8217:2024 Konformität | Yes | Yes |
| Water risk | None | Negligible (≤1%) |
| Greenhouse gas reduction | None | 20-25% |
| Raw material costs | High | Kidney (glycerine/PPO) |
| Engine modifications | None | None |
Saving on fuel costs
Savings on maintenance and lubricants
Energy savings through cleaning agents
Savings in compliance with the CII guidelines
Charter fee
Are you looking for solutions for the production of alternative fuels?
RAPTECH offers ISO 8217-compliant project developments according to your requirements.
Questions and answers on alternative fuels
Alternative fuels are a key technology for a sustainable energy future. They offer an environmentally friendly solution to reduce CO2 emissions in various industries. In this section, we answer how alternative fuels can be used to reduce emissions, increase efficiency and promote environmentally conscious production. Companies that use alternative fuels are actively contributing to a cleaner and more sustainable future.
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Areas of application - Alternative fuels
