(updated 17 April 11)
* Bio = ?
+ Prefix meaning "biologically based"
* Diesel = ?
+ The term refers both to the fuel and the engine
- Petroleum-based fuel which is burned in engines ignited by compression rather than spark (also referred to as “dino” diesel!)
- Engine invented by Rudolf Diesel in 1897 that ran off peanut oil!!!
* Biodiesel, n. -- a fuel comprised of mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats, designated B100, and meeting the requirements of ASTM D 6751.
* Biodiesel blend, n. -- a blend of biodiesel fuel meeting ASTM D 6751 with petroleum-based diesel fuel designated BXX, where XX is the volume percent of biodiesel. (Example: B20 is 20% biodiesel & 80% diesel fuel)
Ultra-low Sulfur Diesel (ULSD)
* Started replacing regular diesel in 2006, 97% less sulfur than regular diesel
* Cleaner burning and produces less particulates in all engines
How Biodiesel is Made
Vegetable Oil or Animal Fat (100 lbs.) + Lye + Methanol or Ethanol (10 lbs.) = Biodiesel (100 lbs.) + Glycerin (10 lbs.)
Advantages: Big Picture
* Pure biodiesel = no petroleum
* Compatible at some level with any diesel engine & existing infrastructure
* Energy Balance - for every one unit of energy needed to produce biodiesel, 3.2 units of energy are gained.
* Biodegradable and Non-Toxic – USDA tests confirm that biodiesel is safer than diesel and biodegrades as fast as dextrose, a test sugar.
* Greenhouse Gases – A 78% life cycle decrease in CO2 according to a USDA and DOE study.
* Oxides of Nitrogen (NOX)
+ Up to 10% more with B100
+ May be corrected by updated catalytic converter
* Mild solvent property
+ May clean fuel line which could plug fuel filters
+ Concern with some older, soft rubber fuel lines
* Biodiesel gels faster than most diesel
+ Traditional cold weather options for diesel work well with biodiesel
- Blend with kerosene, use of additives
- Block and filter heaters
- Indoor vehicle storage
* ULSD vehicles(after 2006) using higher blends of biodiesel (> B5) have not been fully “tested”
* Passenger cars
* Home heat
* Long haul trucks
* Farm equipment
* School buses
* ? (think about it!!!!)
(The author and his 2000 VW Jetta TDI = 48 MPG!!!!)
Best Diesel Vehicles for pure biodiesel (B100) – no conversion required!
* Volkswagens before 2007 – Golf TDI, Jetta TDI, Passat TDI
* Chevy, Dodge, Ford, GMC - heavy duty trucks and vans
Biodiesel production supported by these local business:
* Quality Street Kitchen Catering, 301-997-0700, http://www.qualitystreetcatering.com/
* Morris Point Restaurant , Chris and Deb Soussanin, 301-769-2500 http://www.morris-point.com/
* Days Off Catering, LLC, Justin Keys, 240-561-6743, firstname.lastname@example.org
* Springboard BioPro 190, http://utahbiodieselsupply.com/biopro190.php
* TDI Club, http://forums.tdiclub.com/forumdisplay.php?f=52
* Biodiesel now, http://www.biodieselnow.com/
For more information…