Zusammenfassung der Ressource
Batch or Continuous
- Large amounts of chemical
- Ammonia - fertilizers
- Advantages
- Small amounts of chemical
- A set amount each time
- Medicines
- Drug costs
- Research and testing (3 - 4 years +)
- Need to make sure it actually works
- Clinical trials
- Similar compounds can be produce to try to reduce side effects
- Toxicology tests, animal testing, human trials
- Energy costs
- Development time
- Labour costs
- Raw materials
- Marketing, legal costs
- Advantages
- Supply + Demand
- Medicines have a best before date
- Disadvantages
- Has to be supervised so labour costs are high
- Vessels are not used as efficiently as a continuous process
- Large amounts of chemical
- Keeps going, do not switch off!
- Advantages
- Works at full capacity for high demand
- Makes a large amount of product
- Kept running at optimum conditions
- Less energy to maintain than to stop and start the process
- Ammonia - Fertilizers
- Sulphuric Acid - Different compounds
- Disadvantages
- Costs an enormous amount to build
- If production is slowed, efficiency decreases
- Product becomes more expensive