Abstract
This article reviews the contaminants that affect biodiesel fuel quality and the analytical procedures used for their determination. These contaminants include those causing cold flow problems and filter plugging, acid number and moisture. The significance and determination of the levels of the contaminants that affect low-temperature operability and cause filter-plugging problems, including mono-acylglycerides and sterol glucosides, are reviewed and discussed. Additionally, the significance and measurement of acid number and moisture content are reviewed in regard to their effects on fuel quality.
Financial & competing interests disclosure
The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.
No writing assistance was utilized in the production of this manuscript.