Oil production around the world is under pressure from increased demand: biofuels offer a potential solution to many of the problems associated with conventional fuels.

As global markets seek alternative fuels, bio-diesel and bio-ethanol facilities are being built to convert renewable crops into fuels. AESSEAL® documented a 99.4% start-up success rate at the height of the ethanol build period in North America. This positioned AESSEAL® as a market-leader in this industry with over 4,000 seal installations and 2,500 system installations.


Biodiesel can be blended with conventional diesel up to a level of 5% without invalidating automobile manufacturers’ warranties. Higher blend ratios are commonly found around the globe.

Biodiesel is produced from seed, including rape, palm, soybean and sunflower seeds. The extraction and solvent recovery process operates under vacuum at higher temperatures. With the need for conventional plan 53 systems, it is important to have turn-key instrumentation for continuous monitoring. AESSEAL® provides modular support systems, which are pre-engineered and ready to install.


Bioethanol can be blended with conventional gasoline by up to 5% in Europe and 15% in the USA. With very minor modifications, significantly higher blends of Bioethanol can be used and in several countries vehicles are equipped to burn these higher blends.

As demand grows, the ethanol industry is expanding the number of commodity crops used to produce bio ethanol. This variation in raw materials can present different sealing challenges. However, the need to control the fluid film and to protect bearings from contamination remains unchanged.

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