reactive distillation

reactive distillation

1. REACTIVE DISTILLATION Presented By: Jay Jawalge (11920039) Rupali Kadam (11920081) Karthik Iyer (11810069) Payal Khandagale (11920014) Arjun Phad (11920021) 1 Group 7

2. Content Reactive Separation Technology What is Reactive Distillation? History of Reactive Distillation? Why reactive Distillation? Why not Reactive Distillation? Principle Hardware aspect Process alternative Case study Applications References Group 7 2

3. Reactive Separation Technology Group 7 3 Fig.1, Multi-functional reactor [5] Traditional flow sheet of a chemical process consists of a reactor. D evelopment and application of integrated processes. Better process economy. Multi-functional reactor.

4. What is Reactive Distillation? Chemical reaction and conventional distillation are integrated Example of process intensification Substantially smaller, cleaner, safer, and energy efficient technology 4 Group 7

5. History of Reactive Distillation Group 7 5 1920 1978 1984

6. Continued… Fig.2, Conventional (left) and intensified (right) methyl acetate synthesis processes. The conventional process consists of one reactor followed by eight distillation columns and one extraction column. The intensified (Eastman-Kodak) process uses reactive distillation technology, Ref. [1 ]. 6 Group 7

7. Example Group 7 7 Fig. 3, Processing schemes for a reaction sequence where C and D are both desired products, [5]

8. Why Reactive Distillation? Increased conversion Increased selectivity Reduced energy consumption Overcoming of azeotropes Simplified separation of close-boiling components Capital savings 8 Group 7

9. Why NOT Reactive Distillation? Volatility constraints Operating-window constraints Occurrence of reactive azeotropes Occurrence of multiple steady states 9 Group 7

10. Principle Le chatelier’s principle Group 7 10

11. Semi-batch reactor Reactive distillation Group 7 11 Fig. 4 Semi-batch reactor, Ref. [3] Fig. 5 Reactive distillation, Ref. [3] Continued…

12. Hardware Aspect Group 7 12 Fig. 6, Non-catalytic column internals for R eactive distillation, Ref.[1]

13. Group 7 13 Fig. 7, Non-catalytic column internals for R eactive distillation, Ref.[1] Fig.6, Hybrid structure

14. Process alternative Group 7 14 Fig.8, Equipment for Processes that Combine Reaction and Distillation Steps, Ref. destillation in der Prozesssynthese (Ph.D. thesis), TU Dortmund, 1998

15. Case Study: A reactive distillation process for deep hydrodesulphurization of diesel Group 7 15 Fig. 9, Reactive distillation column configuration for ultra-low sulfur diesel production equilibrium stage model H2 to hydrocarbon (HC) feed ratio of 3. under optimal design and operating conditions, reactive distillation could be considered as a viable technological alternative to produce ULSD .

16. Reactive Distillatory Unit: Video Group 7 16

17. Applications of Reactive Distillation Group 7 17 Table.1, Industrial applications of reactive distillation , Ref. [4]

18. References [1] Keller, T. (2014). Reactive Distillation. Distillation, 261–294 [2] Reaction Distilation Unit by Goel Scientific Glass Works Ltd [3] http ://umich.edu/~ elements/5e/web_mod/distill/index.htm [4] Nguyen , Quy & Nguyen, Kim & Nguyen, Tuan-Anh & Tetsuo, Fuchino . (2020). Overcome the equilibrium limitation in para-Xylene production by using reactive distillation method [5] Shah, Binoy & Shah, Parin . (2015). Reactive Distillation In Process Industries . 18 Group 7

19. Continued… [6] D.W. Agar, Multifunctional reactors: old preconceptions and new dimensions, Chem. Eng. Sci. 54 (1999) 1299e1305. [ 7 ] B. Bessling , Zur Reaktivdestillation in der Prozesssynthese (Ph.D. thesis), TU Dortmund, 1998. [ 8 ] G. Schembecker , S. Tlatlik , Process synthesis for reactive separations, Chem. Eng. Process. 42 (2003) 179e189. [ 9 ] W. Song, R.S. Huss, M.F. Doherty, M.F. Malone, Discovery of a reactive azeotrope, Nature 388 (1997) 561e563. Group 7 19

20. Thank You Group 7 20