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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 circularity
Non-renewable resources (inc. energy)
Smart Use and design

Assessment type

Quantitative

Spatial focus of impact

General

Life Cycle

Cradle to gate

Technical Stage

Concept
Development

Required level of expertise and data

Low

Model data

Own model data

Open Access and method

Yes

English available

Yes

Geographical scale

Local

Object: Product
Goal: Self-assessment; product optimisation
Motivation: Improvement