In the continuous process, all the stages are carried out simultaneously (although possibly in different parts of the system), and so the overall time required for the process is shortened. In contrast, the required volume of the tanks for a specific batch process is greater than that required for a parallel continuous process.
For example, if a batch process takes one hour and the required output is one cubic meter per hour, a reactor whose volume is one cubic meter will be required. If we carry out a continuous process instead of a batch process, it will be shorter.