What are the advantages of fuel ether blending compared to ethanol blending?

Print

ETBE features very different and advantageous physical and chemical characteristics, compared to ethanol, when blended into petrol. These include

  • significantly lower blending volatility,
  • no significant distortion of the distillation curve,
  • better tolerance of wet distribution systems,
  • double the octane increase per "barrel" at equivalent ethanol content and narrower octane sensitivity,
  • better material compatibility.

When ETBE is co-blended with ethanol in petrol, those characteristics entail a whole series of practical advantages, including: 

  • positive economic impact by mitigating the need to remove light components such as butanes/pentanes,
  • reducing risk of phase separation when in presence of water,
  • better compatibility with seals and gaskets,
  • octane sensitivity in line with finished petrol specifications requirements.

Such a "co-blend", implying a reduced volume of alcohol movement and management at terminals, also allows significant logistic advantages, e.g.:

  • reduced movements of ethanol to terminals,
  • smaller tank size requirements,
  • lower logistical complexity, lighter administrative burden.

Last but not least, ETBE provides a series of environmental benefits compared to ethanol used alone, such as lower VOCs emission, lower permeation losses in the vehicle, and additional CO2 emissions reduction due to less severe refinery operations.

Finally the combined used of ETBE and ethanol allow to maximise the O2 limit exploitation in the  new European "Protection Gradeā€ (E5) of gasoline defined in Directive 2009/30/EC and intended for use in older vehicles, since ethanol is limited to 5%v/v, while the 15%v/v for ETBE equated to some 6.42%v/v of ethanol.

Nike Air Max Goedkoop Nike Air Max 90 Goedkoop Nike Air Max 1 Goedkoop Nike Air Max Thea Goedkoop Nike Air Max 2013 Goedkoop Nike Air Max 95 Goedkoop Air Max Nike Goedkoop Nike Air Max 1 Essential Goedkoop Nike Air Max 90 Essential Goedkoop Nike Air Max Dames Goedkoop Nike Air Max Sale Goedkoop Nike Air Max Command Goedkoop Nike Air Max Women Goedkoop Nike Air Max 1 Premium Goedkoop Nike Air Max Pas Cher Goedkoop Nike Air Max 97 Goedkoop Nike Air Max One Goedkoop Nike Air Max Classic Goedkoop Nike Air Max 1 Sale Goedkoop Nike Air Max Leopard Goedkoop Nike Air Max 2012 Goedkoop Nike Air Max Classic Bw Goedkoop Nike Air Max Pink Goedkoop Nike Air Max Essential Goedkoop Nike Air Max 1 Leopard Goedkoop Nike Air Max Light Goedkoop Nike Air Max Black Goedkoop Nike Air Max 180 Goedkoop Nike Air Max 87 Goedkoop Nike Air Max White Goedkoop Nike Air Max Thea Black Goedkoop Nike Air Max Femme Goedkoop Nike Air Max Bw Goedkoop Nike Air Max 90 Infrared Goedkoop Nike Air Max 90 Premium Goedkoop Nike Air Max 90 Sale Goedkoop Nike Air Max 2011 Goedkoop Nike Air Max Kids Goedkoop Nike Air Max Outlet Goedkoop Nike Air Max 90 White Goedkoop Nike Air Max 90 Black Goedkoop Nike Air Max 1 Black Goedkoop Nike Air Max Red Goedkoop Nike Air Max 90 Jacquard Goedkoop Nike Air Max Plus Goedkoop Goedkope Nike Air Max Goedkoop Nike Air Max 90 Women Goedkoop Nike Air Max Premium Goedkoop Nike Air Max Tn Goedkoop Nike Air Max Tailwind Goedkoop New Nike Air Max Goedkoop Nike Air Max 1 Women Goedkoop Nike Air Max Essential 1 Goedkoop Nike Air Max Blue Goedkoop Nike Wmns Air Max Thea Goedkoop Nike Air Max Infrared Goedkoop Nike Air Max Junior Goedkoop Nike Air Max 90 2014 Goedkoop Nike Air Max 2009 Goedkoop Nike Air Max 1 Pas Cher Goedkoop Nike Air Max Online Goedkoop Women Nike Air Max Goedkoop Nike Air Max Usa Goedkoop Nike Air Max Id Goedkoop Nike Air Max Men Goedkoop Nike Air Max Thea Premium Goedkoop Nike Air Max Girls Goedkoop Nike Air Max Limited Edition Goedkoop Nike Air Max 2 Goedkoop Nike Air Max Command Leather Goedkoop Nike Air Max 90 Pas Cher Goedkoop Nike Air Max Bw Classic Goedkoop Nike Air Max Woman Goedkoop Nike Air Max Grey Goedkoop Nike Air Max Green Goedkoop Nike Air Max1 Goedkoop Nike Air Max 2010 Goedkoop Nike Air Max Shop Goedkoop Nike Air Max Go Strong Goedkoop Nike Air Max Baby Goedkoop Nike Air Max Online Shop Goedkoop Nike Air Max 1 Blue Goedkoop Nike Air Max 90 Blue Goedkoop Nike Air Max 90 2007 Goedkoop Nike Air Max Thea Women Goedkoop Nike Air Max90 Goedkoop Nike Air Max 90 Junior Goedkoop Nike Air Max Kopen Goedkoop Nike 90 Air Max Goedkoop Baby Nike Air Max Goedkoop Nike Air Max Running Goedkoop Nike Air Max Ladies Goedkoop Nike Air Max 90 Kids Goedkoop Nike Air Max 1 Grey Goedkoop Basket Nike Air Max Goedkoop Nike Air Max Goedkoop Goedkoop Nike Air Max Classics Goedkoop Nike Air Max Sneakers Goedkoop Nike Air Max 90 Dames Goedkoop Nike Air Max Leather Goedkoop