Please use this book as your reference: Chemical Engineering Design Principles, Practice and Economics of Plant and Process Design Second Edition. I cant send a link due to the policy.

2. The process used in the manufacture of aniline from nitrobenzene is described in Appendix F, Design Problem F.8, which is available in the online material at The process involves six significant stages: Vaporization of the nitrobenzene Hydrogenation of the nitrobenzene Separation of the reactor products by condensation Recovery of crude aniline by distillation Purification of the crude nitrobenzene Recovery of aniline from waste water streams Estimate the capital cost of a plant to produce 20,000 metric tons per year