I recommend a book "Elements Of Chemical Reaction Engineering" by H. Scott Fogler. The book cover the principles and different reactor design.

Depends upon process to process, the change from batch reactor vessels to continuous flow reactors is among the most challenging problems that must be solved in order to succeed in making the batch to continuous process, and the best methodology by which the feasibility of the change can be determined remains an open problem. Starting from first principles, we develop a general non-dimensionalization algorithm that allows the description of any reactive system. We then done non-dimensional performance metrics that allow us to assign "scores" for a given batch or CFR. The input data also changed as the with increased surface-to-volume ratios, tubular, continuous-flow reactors have superior heat transfer properties and temperature control. Mixing is rapidly.

https://www.researchgate.net/publication/333491953_Switching_from_Batch_to_Continuous_Reactors_Is_a_Trajectory_Optimization_Problem

Thank you dear Kavin Teenakul

Thanks dear Prem Baboo