Green chemistry aims to make processes as safe and sustainable as possible:
- using renewable feedstocks: e.g make polyester from corn starch rather than crude oil.
- Making the process efficient: measured as atom economy atom economy = mass of atoms in product / mass of atoms in reactant X 100%
- reducing waste: processes with higher atom economy, recyling, uses for by-products.
- Make processes more energy efficient: insulating pipes, use energy from exothermic reactions.
- lower energy demand of a process: use biocatalysts so it can run at low temp.
- cutting pollution from waste: remove harmful chemicals before sending them to landfill sites.
- Avoid hazardous chemicals: replace toxic feedstocks with chemicals that do not harm human health or the environment.
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