Quality

Winter 2008 / Editor's Query

hidden sludge hazards

By Bill and Cathy Schell

These three pictures show buildup in a tank that stored petroleum diesel for heating a home. This fuel tank was taken out a basement of a house, and we assume it served the house for approximately 20 to 25.......[MORE]

Winter 2008 / Spanking Ester

glycerides? who gives a drip!

By Leif Forer

Dear Ester~ How much is too much total glycerin in your biodiesel? Sure, the ASTM max is 0.24%, but where did that number come from? If you have 2.4%, is that really so much worse? Don't SVO'ers have 100%?.......[MORE]

Winter 2008

catalyst: how much?

By Dr. Jon Van Gerpen

Most homebrewers recognize the need to titrate their oil before making biodiesel to determine the amount of catalyst needed. Free fatty acids (FFAs) in the oil will deactivate a portion of the catalyst, so the amount of catalyst must.......[MORE]

Winter 2008 / Editor's Letter

first rule of repair:

By Frankie Abralind

When it comes to biodiesel performance, one single issue causes more heartache than any other for new B100 users. It's the clogged fuel filter. A friend recently came to visit on a mild Autumn day, driving his recently-purchased 1995.......[MORE]

Spring 2008 / Golden Meniscus

To BQ or Not to BQ - Is That the Question?

By Kumar Plocher

As I prepare to head off to Orlando for the NBB Conference and Sustainable Biodiesel Summit, my thoughts turn to the BQ-9000 "cooperative and voluntary" accreditation program. The NBB will no doubt be crowing loudly about it once again........[MORE]