C.4.8 Filter plugging problems – A number of contaminants in some biodiesels have relatively low solubility in heating fuel oil and can precipitate from fuel blends, sometimes in a non-reversible manner. This includes sterol glucosides and some saturated monoglycerides. Exposure to cold temperatures over time can accelerate this precipitation and the formation of larger agglomerates. These can settle in the bottom of storage tanks and plug filters. | C.4.8 Filter plugging problems – A number of contaminants in some biodiesels have relatively low solubility in heating fuel oil and can precipitate from fuel blends, sometimes in a non-reversible manner. This includes sterol glucosides and some saturated monoglycerides. Exposure to cold temperatures over time can accelerate this precipitation and the formation of larger agglomerates. These can settle in the bottom of storage tanks and plug filters. |