Ethanol may be made by fermentation or by the catalytic addition of steam to ethene. Which row shows one advantage and one disadvantage of each process?
- Afermentation: advantage batch process, disadvantage slow reaction; catalytic addition of steam to ethene: advantage continuous process, disadvantage fast reaction
- Bfermentation: advantage fast reaction, disadvantage continuous process; catalytic addition of steam to ethene: advantage pure ethanol formed, disadvantage renewable raw material
- Cfermentation: advantage renewable raw material, disadvantage batch process; catalytic addition of steam to ethene: advantage pure ethanol formed, disadvantage slow reaction
- Dfermentation: advantage renewable raw material, disadvantage impure ethanol formed; catalytic addition of steam to ethene: advantage fast reaction, disadvantage finite raw material