Chemical plants with lab

A.Y. 2018/2019
Lesson for
12
Max ECTS
128
Overall hours
SSD
ING-IND/25
Language
Italian
Learning objectives
The student are required to learn the following knowledge:
Phase equilibria under non-ideal conditions;
Main separation techniques (fundamentals) and their integration in a process scheme;
Sizing and rating criteria for absorption/stripping columns, distillation columns and extraction (deepen);
Criteria for economical evaluation of process alternatives and for process intensification.
LABORATORY
The aim of the course is the education for the students in the practical use and management of unit operations in chemical plants, in particular for what concerns distillation and absorption columns.
Final competences will be the ability to size single unit operations, to evaluate their economic sustainability and integration in a given process.

LABORATORY
The acquired skills will be the practical use of the plants, the obtaining of numeral values, the numerical elaborations and the process simulation. The basic knowledge of the theory, the description of the plants and the numerical exercises will be discussed and presented during the lessons.

Course structure and Syllabus

Active edition
Yes
Module: Chemical plants
ING-IND/25 - CHEMICAL PLANTS - University credits: 6
Lessons: 48 hours
Module: Lab chemical plants
ING-IND/25 - CHEMICAL PLANTS - University credits: 6
Laboratories: 64 hours
Lessons: 16 hours
Professor: Pirola Carlo
Module: Chemical plants
Syllabus
Goals
The student are required to learn the following knowledge:
Phase equilibria under non-ideal conditions;
Main separation techniques (fundamentals) and their integration in a process scheme;
Sizing and rating criteria for absorption/stripping columns, distillation columns and extraction (deepen);
Criteria for economical evaluation of process alternatives and for process intensification.

Final competences will be the ability to size single unit operations, to evaluate their economic sustainability and integration in a given process.


Course content
Finding thermodynamic data and mention to group contribution methods.
Applied thermodynamics: models for activity and fugacity coefficients.
Vapor-liquid equilibrium (VLE) in ideal and non ideal cases; thermodynamic consistency of VLE. VLE diagrams.
Liquid-liquid Equilibrium (LLE): diagrams for binary and ternary mixtures.
Absorption: unit operations for absorption and stripping. Columns and packings, sizing and rating of columns, pressure drop assessment. Absorption with stage columns, sizing.
Distillation, sizing and rating: flash, stage and packed columns, binary and multi-component mixtures. Discontinuous operations. Theoretical stages and efficiency models.
Liquid-liquid extraction: sizing and rating, partition and selectivity coefficients, choice of the solvent.
Criteria for the quantification of fixed and variable costs for separation processes.
Process intensification: examples.
Process simulation software: potential and limits, practical exercises.

Lectures and exercises will be mixed, to fix the main concepts. Exercises will be planned on licenced software for process simulation. This module is strictly correlated to the lab.


Reference material
B.E.Poling, J.M.Prausnitz, J.P. O'Connell, " The Properties of Gases and Liquids" McGraw-Hill, 2001.
W.L. Mc Cabe, J.C. Smith, P. Harriot, "Unit operations of chemical
engineering", Mc Graw Hill, 2001.
J.M. Douglas, "Conceptual design of chemical processes", Mc Graw Hill, 1988.

Didactic material provided by the teacher through the Ariel platform.


Assessment method
Written + oral examination: The written test includes the solution of exercises similar to those presented during the course. The oral examination includes the discussion of a flow sheet with sizing examples of a unit operation.

Language of instruction
English

Attendance Policy
Frequency suggested

Mode of teaching
Traditional
Module: Lab chemical plants
Syllabus
Goals
The laboratory module aims to transmit to the students the skills of the management of chemical plants on a continuous pilot scale and in the related data processing and process simulation, in particular the distillation and absorption operations.

Acquired skills
At the end of the course the students will acquire the basic knowledge for the experimental management of continuous separation and thermodynamic equilibrium equipments, with regards to basic operation, analytical procedures and instrumental control. They will also acquire the concepts for the collection and processing of data for the verification of mass and energy balances and the determination of the main chemical-physical parameters involved. Finally, they will be able to use the basic functions of a commercial simulation software for plants


Course content

The following experiences will be carried out in the laboratory:
Exercise 1: Measure the vapor pressure of a liquid at different temperatures
Exercise 2: Collection of liquid / vapor equilibrium data of a binary mixture in an isobaric condition
Exercise 3: Conducting continuous multi-trays distillation column
Exercise 4: Conduction of an absorption column with different ratios of liquid / gas flow rates

Data processing and process simulation will also be carried out for all experiences.

Suggested prerequisites
Knowledge of Physical Chemistry (thermodynamics and kinetics) and of transport phenomena.


Reference material
- V. Ragaini, C. Pirola, "Processi di Separazione nell'Industria Chimica", Hoepli
- Slides discussed and explained during lessons
- Laboratory notes (available)

Assessment method
Students will carry out practical exercises in groups of 3-4 people. At the end of the laboratory, each group will have to prepare a written report, with the collected results and numerical and simulation elaborations explained in class. Each student will then have to have an oral examination. In this exam, the knowledge of the experimental plants and procedures, of the numerical elaborations and of the process simulation will be verified.

Language of instruction
Italian

Attendance Policy:
Mandatory in the laboratory
Strongly recommended in the classroom
Mode of teaching:
Traditional, with 16 hours in the classroom for the theoretical introduction, the explanation of the equipment, the operating procedure, the data processing and the process simulation and 64 hours in the laboratory for the practical development of the exercises

Website:
http://cpirolaicl.ariel.ctu.unimi.it/v3/home/Default.aspx
Lesson period
Second semester
Lesson period
Second semester
Assessment methods
Esame
Assessment result
voto verbalizzato in trentesimi
Professor(s)
Reception:
Monday: 9:30-13:30 am
Pilot Plants Laboratory (Build # 7 of the Chemistry Departement)