Document information
- University
- Politecnico di Milano
- Degree programme
- Energy Engineering
- Subject
- Chemical Processes and Technologies - Impianti e Processi Chimici
- Classification
- Exercises · By topic
- Original format
- Text
- Searchable text
← Back
ExercisesBy topic
Exercise 02 ENG
Topic-based study materials for Chemical Processes and Technologies - Impianti e Processi Chimici in the Energy Engineering degree programme at Politecnico di Milano. The document covers: Page 1 of 2 Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta” POLITECNICO di MILANO Practical class (informatic laboratory) of Chemical Processes and Technologies (Prof. Stefania Moioli) 1. Vapour pressure estimation Ethyl acetate has a vapour pressure of
Chemical Processes and Technologies - Impianti e Processi ChimiciBy topic
Document information
What's included in this study material
Topic-based study materials for Chemical Processes and Technologies - Impianti e Processi Chimici in the Energy Engineering degree programme at Politecnico di Milano. The document covers: Page 1 of 2 Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta” POLITECNICO di MILANO Practical class (informatic laboratory) of Chemical Processes and Technologies (Prof. Stefania Moioli) 1. Vapour pressure estimation Ethyl acetate has a vapour pressure of
Import quality: text was extracted directly from the original document.
Extracted content from the document
Representative passages recognised in different parts of the material. The full extracted text remains available to search, while this compact preview makes the page easier to read.
Page 1
Page 1 of 2 Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta” POLITECNICO di MILANO Practical class (informatic laboratory) of Chemical Processes and Technologies (Prof. Stefania Moioli) 1. Vapour pressure estimation Ethyl acetate has a vapour pressure of 118.3 mmHg at 29.5 °C, and a normal boiling point of 77.0 °C. a) Determine the parameters of the Clausius-Clapeyron type equation so that it is possible to calculate its vapour pressure in: mmHg, atm, bar, psi. b) Estimate its vapour pressure at 45 °C using: - the Clausius-Clapeyron type equation with the parameters previously determined; - the Antoine equation: 2790.50ln( [ ]) 16.1516 [ ] 57.15 evP mmHg TK=− − ; - a linear interpolation between the two values given for its vapour pressure. Discuss, then, the obtained results. 2. Bubble- and dew-point calculations Vapour-Liquid Equilibrium (VLE) conditions of a n-pentane/i-pentane mixture can be rep resented by the Raoult’s Law: , ()i ev i iP y P T x = . a) Compute the bubble-point pressure and the dew -point pressure for an equimolar mixture of the two hydrocarbons at 120 °C. b) For the same mixture, compute the bubble -point temperature and the dew -point temperature at 1200 mmHg. c) Draw the P-x-y diagram at 120 °C and the T-x-y diagram at 1200 mmHg for the binary system n-pentane/i-pentane. For cases a) and b), also compute the composition of the liquid and of the vapour phases. Data The vapour pressure is calculated with the Antoine equation: ln( [ ]) [] ev BP mmHg A T K C=− + Component A B C i-pentane 15.6338 2348.67 -40.05 n-pentane 15.8333 2477.07 -39.94 2 3. Calculation of fugacity coefficients using the Peng-Robinson Equation of State (PR EoS) Considering an equimolar mixture of n-butane and n-octane, calculate the fugacity…
Preview
First page of the document.