krishana ppt impsaaaasssasssss_075241.pptx

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1.  Dr. Babasaheb Ambedkar Technological University     “SEPARATION OF IPA-WATER MIXTURE USING ASPEN PLUS” Krushnakant Thakare (2030331507018)                                      Pranoti Lode (2030331507028) Under the guidance of                                        PROF. NIKITA MALORE

2. Introduction Aspen Plus is a widely used process simulation software developed by Aspen Technology. It is specifically designed for modelling, simulating, and optimizing chemical processes .                                                         Isopropyl alcohol is widely used in semiconductor industry as cleaning agent. This waste solvent steam contain mainly is entrainer .Screening is an important step in extractive distillation .                              

3. Application of isopropyl alcohol

4. Need of separation  1)Product Purification  2)Recycling and reuse 3)Waste Management 4)Controlled concentration 5) Regulatory compliance

5. Different types of separation method

6. Simulation of Isopropyl Alcohol + Water using Entrainer Components used: 1)Isopropyl alcohol 2)Water Entrainer : Dimethyl Sulfoxide (DMSO) Base method : NRTL Column: RADFRAC

7. Use of DMSO as Entrainer Azeotrope formation: DMSO can form ternary azeotropes with IPA and water, which can facilitate the separation process by breaking the azeotrope between IPA and water. Selectivity: DMSO can exhibit selectivity towards certain components in the mixture, which might be useful in targeted separations. Solubility: DMSO is known for its high solubility in both polar and non-polar solvents, which can enhance its ability to dissolve IPA and water. High boiling point: DMSO has a relatively high boiling point compared to other entrainers like methanol. This can be advantageous in specific distillation conditions.

8. Operating Conditions Operating variable Extractive column Feed flow rate 100 kmol/hr Entrainer flow rate 25 kmol/hr Feed Temperature 30 C Feed Pressure 1 atm Entrainer Temperature 30 C Entrainer pressure 1 atm Distillate rate 30 kmol/hr Reflux Ratio 1.2 No. of theoretical stages 37

9. Aspen Plus Working Environment

10. Main Flowsheet

11. Equilibrium diagram of T- xy plot In an azeotropic mixture, the vapor and liquid phases have the same composition at a specific temperature, leading to a constant boiling point .

12. Results Effect of Distillate Rate Effect of Feed stage Effect of Number of stages

13. . Effect of Reflux ratio Entrainer feed stage Temperature and stages profile

14. Conclusion The reflux ratio is a critical parameter that influences the separation performance. In column feed is given at atmospheric pressure (1 atm ) and room temperature (30ºC) condition. The total number of stages are 37, F eed stage at 32th, R eflux ratio is 1.5 D istillate rate is 35 kmol /hr. In the overhead product 99.31% are recovered.

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