Bio-Diesel

Bio-Diesel

Bio-diesel is a new domestically produced fuel , made from renewable resources , such as vegetable oils , recycled restaurant grease , or animal fats . Its composition can be fully broken down and represents non-toxic elements with no harm to the environment . The emissions of bio-diesel are much less harmful than those of petroleum-diesel in the process of burning , and it does not contain such air pollutants as particulates carbon monoxide , hydrocarbons , and air toxics . Bio-diesel with its low environmental pollution qualities becomes an effective alternative energy source capable to replace the current fossil

fuel usage

Bio-diesel can be used in regular diesel engines , and it is the first alternative of possible replacement of fossil fuels . Specific blends have been developed to adjust the use of bio-diesel to current engines commonly installed in vehicles . A combination of 20 of bio- and 80 of petroleum-diesel is the most widespread substance used in regular unmodified diesel engines . Bio-diesel in pure form , not mixed with any secondary substance , requires specific engine structure , and therefore bio-diesel engines have been developed , however they are not commonly used compared to regular . One of the serious drawbacks of bio-diesel is that it is not guaranteed to work in wintertime at full capacity

The Occupational Safety and Health Administration have classified bio-diesel as a non-flammable liquid , and it has a flash point of about 302oF . Such characteristics of bio-diesel guarantees a greater safety in case of accidents compared to petroleum-diesel or easily exposable gasoline . On the other hand , bio-diesel has a higher possibility to gel at high temperatures during cold climate conditions

Primary qualities of bio-diesel is significant reduction of exhaled unburned hydrocarbons , carbon monoxide , sulfates , polycyclic aromatic hydrocarbons , nitrated polycyclic aromatic hydrocarbons , and particulate matter upon substance burning . Presence of oxygen in bio-diesel provides a more complete burning to carbon dioxide , which significantly decreases the solid carbon fraction of particulate matter . However , hydrocarbon portion remains the same or increases

The decrease of carbon monoxide emissions is about 50 , and carbon dioxide is about 80 compared to petroleum diesel , due to the recycling already existing carbon oxide in the atmosphere , rather than creating new . Furthermore , bio-diesel demonstrates the reduction of aromatic hydrocarbons emissions , such as benzopyrenes and benzofluoranthene Also , sulfur emissions are completely eliminated due to the absence of sulfur in bio-diesel 's structure . Although bio-diesel combustion results in higher nitrous oxide production compared to petroleum diesel , the emissions of nitrous can be reduced with the help of catalytic converters . Bio-diesel demonstrates a more rapid ignition ability upon injection into engine , as it has a higher cetin concentration

The composition of bio-diesel represents a combination of mono-alkyl esters of long chain fatty acids . Usually , in bio-diesel methanol is used for production of methyl esters however an ethyl ester option of bio-diesel is possible through using ethanol

In to produce bio-diesel , various bio-lipids that are used include virgin oil feedstock , waste vegetable oil , and animal fats . The first are usually represented by rapeseed and soybean oils . Also , some crops may be...