Introduction. The objective was to determine if there would be problems processing the crude glycerin, a by-product of biodiesel manufacturing.
Biodiesel By-Product Development. Evangelista found the foaming that was anticipated during glycerin purification. However, he also uncovered an unexpected problem--glycerin solidification, which would have caused untold catatrophe during full-scale glycerin processing. Evangelista then discovered a solution for both the foaming and solidification problem while further purifying the glycerin.
Glycerin foamed without pretreatment
Glycerin polymerized without pretreatment
Glycerin after pretreatment
After pretreatment, no foam or polymerization
Glycerin distillation for USP quality
