Quality

Winter 2008 / Editor's Query

hidden sludge hazards

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!

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?

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:

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?

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]