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E-factor
emiritus Prof. Roger Sheldon
The E-factor is the actual amount of waste produced in the process per amount of product produced. Waste is defined as everything but the desired product. It takes the chemical yield into account and includes reagents, solvent losses, all process aids and, in principle, even fuel (although this is often difficult to quantify). There is one exception: water is excluded from the calculation of the E-factor.
Themes
Material efficiency, see also circularityNon-renewable resources (inc. energy)
Smart Use and design
Assessment type
QuantitativeSpatial focus of impact
GeneralLife Cycle
Cradle to gateTechnical Stage
ConceptDevelopment
Required level of expertise and data
LowModel data
Own model dataOpen Access and method
YesEnglish available
YesGeographical scale
LocalObject: Product
Goal: Self-assessment; product optimisation
Motivation: Improvement
