August 23, 2005
Biodiesel Shelf Life Improvement in the Fuel Market
Seattle, WA, USA--(Jobwerx News)--Effective antioxidant ensures that
Biodiesel fuel, primarily obtained from rapeseed oil, remains stable for
longer periods of time.
Biodiesel is produced by transesterification of vegetable oils with methanol.
In most cases rapeseed oil is used, but used fats from the food industry
and animal fats are another option. The one thing all of these have in
common is that they are raw materials for renewable energy sources. The
disadvantage of the natural fuel is that the unsaturated fatty acids are
easily oxidized by oxygen in the air. The oxidation of oils and fats by
atmospheric oxygen is known as rancidity. Heat, light and pressure facilitate
this process. The oil becomes rancid within a short period of time. The
consequences of oxidation are firstly that biodiesel decomposes to form
short-chain fatty acids, and secondly that insoluble polymers (gums) are
formed. This might cause damage to the engine and the fuel injection system.
Adding Baynox® can increase the natural shelf life of biodiesel.
Biodiesel that does not exhibit the required stability of six hours after
production in the Rancimat test can be quickly adjusted to the sufficient
level of suitability by adding Baynox® - enough for transportation and
a long period of storage at the gas station and in the tank of a diesel-fueled
The active ingredient in the stabilizer is a chemical simulation of vitamin
E, but significantly more effective and just as safe and environmentally
compatible. Just like vitamin E, Baynox® intercepts the peroxyde radicals
and stops the autocatalytic oxidation of the unsaturated fatty acids.
The high-purity, antioxidant active ingredient is dissolved in biodiesel
and has virtually the same viscosity and density as pure biodiesel. Apart
from the active ingredient and biodiesel (RME), Baynox® does not contain
any alcohol or mineral-based stability promoters or other auxiliary agents.
The active ingredient combusts in the vehicle’s engine without leaving
Bayer Industry Services GmbH offers analytical tests to ascertain the
stability of biodiesel using the Rancimat test and the content of Baynox
and vitamin E in biodiesel. These can be arranged by LANXESS upon request.
It can be established from this analysis how much stabilizer is required
for a particular purpose. Unnecessary costs resulting from an overdose
or non-compliance with standards can therefore be avoided.
Photo courtesy of LANXESS.
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