Glossary of terms related to the use of Biodiesel and WVO - Diesel Forum - TheDieselStop.com
Bio-Diesel and Alternative Fuels FAQ Frequently asked questions in the Bio-Diesel and Alternative Fuels forum.

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 09-24-2005, 02:46 PM Thread Starter
Senior Member
 
Join Date: Jul 2005
Posts: 148
My Photos: (0)
Feedback Score: 0 reviews
Glossary of terms related to the use of Biodiesel and WVO

Here is a list of terms for Newbies and veterans alike. Feel free to add to them.


Biodiesel - An environmentally safe, low polluting fuel for most diesel internal combustion and turbine engines, containing methyl or ethyl esters made from fresh or waste vegetable oils (triglycerides).

Biodiesel Recipe - Like a recipe for making a cake, a biodiesel recipe specifies the ingredients required, and the steps for combining and processing them to make biodiesel fuel. The most common recipe uses waste vegetable oil (WVO), methanol (wood alcohol), and sodium hydroxide (caustic soda) to produce biodiesel and glycerine. The most common steps are: (1) cleaning/heating WVO, (2) titration of WVO sample, (3) combining methanol and sodium hydroxide in exact amounts, (4) combining (3) with (1) and mixing at 50c, (5) waiting for separation, (6) separating the biodiesel from the wastes, (7) washing and drying the biodiesel, (8) disposing of the wastes.

Bubble Wash - A method of final washing of biodiesel through air agitiation. Biodiesel floats above a quantity of water. Bubbles from an aquarium air pump and air stone are injected into the water causing the bubbles to rise. At the water/biodiesel interface, the air bubbles carry water up through the biodiesel by surface tension. Simple diffusion causes water soluable impurities in the biodiesel to be extracted into the water. As the bubble reaches the surface and breaks, the water is freed and percolates back down through the biodiesel again.

Canola - a trademarked hybrid of rape initially bred in Canada. Rape Seed Oil was produced in the 19th century as a source of a lubricant for steam engines, and the oil has a bitter taste due to high levels of acids. Canola has been bred to reduce the amount of acid, yielding a palatable oil. Canola = CANadian Oil Low Acid. (unverified)

Emulsification - to emulsify - to form an emulsion...as in mixing oil and vinegar in a blender. voila: salad dressing.

Emulsion - a usually unstable dispersion of two liquids which do not normally mix (they are immiscible). Emulsions can be formed either by mechanical aggitation, or by chemical processes. Unstable emulstions will separate over time or temperature, stable emulsions will not separate.

Esters - a product of the reaction of acids (usually organic) and alcohols. ch3cooch3 - methyl acetate is the simplest ester. one of the oxygens has a double bond. you can replace the 'ch3' part on the right with more ch2 chunks, and you get other methyl esters, including biodiesel's methyl stearate. many of the esters smell good.

Ethanol - ethyl alcohol - c2h5oh - ch3-ch2-oh = the intoxicating stuff in beer, and a good solvent. "beer is proof that god loves us and wants us to be happy" :: ben franklin.

Glycerine - A byproduct of biodiesel production: ch2-oh--ch-oh--ch2-oh each of the "oh" sites is one of the three places where an ester is broken off of the triglyeride molecule (veg. oil).

Kerosene - A thin oil distilled from petroleum or shale oil, used as a fuel for heating and cooking, in lamps, and as a denaturant for alcohol, diesel or WVO.

KOH - Potassium Hydroxide. used to make biodiesel from ethanol. a metallic base.

Lye - a quaint american term for NaOH - Sodium Hydroxide

Methanol - methyl alcohol - ch3oh - the stuff they burn in top fuel eliminator dragsters and toy airplane engines. a good solvent and a component of gasahol. lethal if consumed. In biodiesel production, methanol is used to make methoxide. Methanol absorbs water from the air, so keep the container closed tightly, and purchase methanol which is known to be dry (anhydrous) or is 99.9% pure. solvent or paint grade methanol may not be anhydrous, and you will run the risk of making soap.

Methoxide - a.k.a. sodium methoxide a.k.a. sodium methylate - (Ch3-O+ Na-) - an organic salt, in pure form a white powder - In biodiesel production, "methoxide" is a product of mixing methanol and sodium hydroxide, yielding a solution of sodium methoxide in methanol, and a significant amount of heat. sodium methoxide in methanol is a liquid that kills nerve cells before you can feel the pain. rinse with water, seek medical attention immediately. also highly explosive. making sodium methoxide is the most dangerous step you deal with when making biodiesel. for this reason, you should carefully consider the safety of the design of your equipment and workspace before using, and you should wear protective clothing and a respirator when handling. you should also make only what you intend to use immediately.

NaOH - Lye, Sodium Hydroxide, Caustic Soda, a.k.a. Red Devil Drain Cleaner... a metallic base. strongly alkaline and extremely corrosive. mixing with fluids usually causes heat, and can create enough heat to ignite flammables (such as methanol), so add slowly. For biodiesel, this is one of the main reactants. Make sure you are purchasing "anhydrous sodium hydroxide." Anhydrous means it's dry, and water turns biodiesel into soap. Store this product in an airtight container to prevent NaOH from absorbing water and CO2 from the air. Store separately.

Optimal PH for Biodiesel - 7 (seven)...neutral, same as distilled water (and most tap water).

pH - (mirriam - webster) a measure of acidity and alkalinity of a solution that is a number on a scale on which a value of 7 represents neutrality and lower numbers indicate increasing acidity and higher numbers increasing alkalinity and on which each unit of change represents a tenfold change in acidity or alkalinity and that is the negative logarithm of the effective hydrogen-ion concentration or hydrogen-ion activity in gram equivalents per liter of the solution; also : the condition represented by a pH number.

Rape - Rape Seed - Rape Seed Oil - a.k.a. Cole seed. A member of the Mustard family. Any of a number of crops grown for oil from the seeds. Canola is a member of this family. Another early term for this oil is Colza. Makes good biodiesel.

Saponification - the reaction of an ester with a metallic base and water ...the making of soap.

Soy - Soy Oil, a vegetable oil pressed from soy beans.

Soy Diesel - a media term for biodiesel which accentuates the renewable nature of biodiesel. Popular in soy producing regions.

SVO - Straight Vegetable Oil - burns well in many diesels, but does not start engine, and will coke in the injectors as a hot engine cools. a separate tank of petro diesel or biodiesel is often used during starting and stopping engine, and an electric valve allows transfer to the SVO tank.

Titration - as applied to biodiesel, titration is the act of determining the acidity of a sample of WVO by the dropwise addition of a known base to the sample while testing with pH paper for the desired neutral pH=7 reading. by knowing how much base neutralizes an amount of WVO, we discern how much base to add to the entire batch.

Transesterfication - Process of creating esters from vegetable oil (a triglyceride), and sodium methoxide. Products are Glycerine, Methyl Stearate, Methyl Oleate, Methyl Linoleate. (assuming soy veg oil)

Viscosity - the "thickness" or "thinness" of a fluid. methanol is "thin", having a low viscosity, while vegetatable oil is "thick" having a high viscosity. (mirriam - webster) the ratio of the tangential frictional force per unit area to the velocity gradient perpendicular to the direction of flow of a liquid.

WVO - Waste Vegetable Oil - WVO is the usual starting product for the making of biodiesel.

2001 F-350 7.3 CC Dually 4x4 auto 4.10
MasterTrim is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 09-24-2005, 10:54 PM
Senior Member
 
Spencnaz's Avatar
 
Join Date: Oct 2003
Location: Renton, Washington
Posts: 2,678
My Photos: (14)
Feedback Score: 0 reviews
Re: Glossary of terms related to the use of Biodiesel and WVO

Thank you for posting this. I hope they can put this in a reference section at the top of the forum.

This will really eliminate alot of confusion seen on this forum.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
The Green Monster
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
: 2001 F250 Powerstroke, 2WD, ZF6 transmission. Bully Dog GT Tuner set in tow mode. MotorSilk boric oxide added to engine, transmission and diff. Showing 30mpg on the freeway running home brew biodiesel. NTZ 1/2 Micron bypass oil filter. Dieselsite coolant filter. 4" open turbo back exhaust. Ford AIS intake. Donaldson ELF7405 oil filter. Caterpillar ELC next on the list.
Spencnaz is offline  
post #3 of 7 (permalink) Old 09-25-2005, 01:57 PM
Lifetime Supporting Member
 
Join Date: Dec 2000
Location: Goshen, OH just east of Cincinnati
Posts: 6,330
My Photos: (61)
Feedback Score: 0 reviews
Re: Glossary of terms related to the use of Biodiesel and WVO

I agree - with fuel prices going ever higher I am interested in researching this for myself so I would assume there are a lot of new folks checking into this forum.

Made a sticky to keep it on top.

Dave / Believer45
moderator
Believer45 is offline  
Sponsored Links
Advertisement
 
post #4 of 7 (permalink) Old 04-27-2006, 04:21 PM
Junior Member
 
Join Date: Apr 2006
Location: CA
Posts: 1
My Photos: (0)
Feedback Score: 0 reviews
Re: Glossary of terms related to the use of Biodiesel and WVO

As I understand it, the use of a conventional respirator (such as those used for spray painting) will NOT protect the user's airway from Methanol fumes.

The only breathing apparatus that will protect your airway from Methanol vapors is a *fitted* positive-pressure respirator, such as that used by firefighters.

Hope this helps someone.
buckyball is offline  
post #5 of 7 (permalink) Old 06-28-2006, 04:35 AM
Senior Member
 
Join Date: Jul 2002
Location: American Fork, Utah
Posts: 566
My Photos: (14)
Feedback Score: 0 reviews
Re: Glossary of terms related to the use of Biodiesel and WVO

I've got one that I don't know, it's "Rug." It was in a sentence like this "...85% SVO with 15% RUG."

And while I'm at it...is B20 20% bio and so B100 would be 100% bio and so on?

2002 F-250 Lariat 4X4 Auto PSD CC SRW. Banks 4" Monster Exh, aFe Stage II w/PG 7, TAG II + Hi-Perf Comp Wheel, X-Monitor, SCMT 1705, fuel tank and pre-pump mods, harpooned tank, Zoodad air, always bright overhead, fuel regulator shim, HX oil hose, 2003 Lighted Mirrors, 203* T Stat, Rancho 9000XLs, C-Btr Mirrors, Roll-N-Lock bed cover, Brakesmart and Titan V. 6.0 Tranny Cooler, door seal mod, Powerslot rotors and Hawk pads, HIDs installed in '05 headlights.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
JonH is offline  
post #6 of 7 (permalink) Old 06-28-2006, 09:44 AM
Senior Member
 
Join Date: Dec 2003
Location: Medford, Oregon
Posts: 5,745
My Photos: (2)
Feedback Score: 0 reviews
Re: Glossary of terms related to the use of Biodiesel and WVO

[ QUOTE ]
I've got one that I don't know, it's "Rug." It was in a sentence like this "...85% SVO with 15% RUG."

And while I'm at it...is B20 20% bio and so B100 would be 100% bio and so on?

[/ QUOTE ]

RUG = Regular Unleaded Gasoline

The above blend is not something I'd use in a 99 up PSD. To muck chance of damaging injectors.

Feb 03 6.0 Silver F-250 SD SC XLT long box, 6-spd 3.73ls, Fx4, Stock, Spray-in liner, Contico box.HARPOONED.
OMCUSNR is offline  
post #7 of 7 (permalink) Old 06-29-2006, 07:19 AM
Senior Member
 
Join Date: Jul 2002
Location: American Fork, Utah
Posts: 566
My Photos: (14)
Feedback Score: 0 reviews
Re: Glossary of terms related to the use of Biodiesel and WVO

Thanks for the info. That was one I couldn't figure out.

2002 F-250 Lariat 4X4 Auto PSD CC SRW. Banks 4" Monster Exh, aFe Stage II w/PG 7, TAG II + Hi-Perf Comp Wheel, X-Monitor, SCMT 1705, fuel tank and pre-pump mods, harpooned tank, Zoodad air, always bright overhead, fuel regulator shim, HX oil hose, 2003 Lighted Mirrors, 203* T Stat, Rancho 9000XLs, C-Btr Mirrors, Roll-N-Lock bed cover, Brakesmart and Titan V. 6.0 Tranny Cooler, door seal mod, Powerslot rotors and Hawk pads, HIDs installed in '05 headlights.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
JonH is offline  
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - TheDieselStop.com > Other Topics > Bio-Diesel and Alternative Fuels > Bio-Diesel and Alternative Fuels FAQ

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Forum - TheDieselStop.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome