1. UNIVERSITY OF TWENTE.
TOM-ST-K8a
Process Design (Procesontwerp) Louis van der Ham ME-218

2. Chemical Process Clean Air Raw Materials Separation Recycle
Zuivering
Effluent Water
Clean Water
Waste
Effluent Air
Clean Air
Raw Materials
Separation
Recycle
Product
Conversion
Recovery
Purification
Separation
Side Products
Air, Water,
Solvents

3. Key Elements Key Elements of a chemical process:
Reactor + catalyst  beating heart of the process
Separation  to correct what went ‘wrong’ in reactor, to get the pure product (on spec) and the reactants (recycle)
Process simulation and design: reaction, separation, heating, cooling, pressurizing adjust conditions (P,T) to optimize reaction or separation Process Control, Process Safety and Economics

4. Module Information Access requirements for this module:
Module K2: Thermodynamica ( ) or
Basics for Process design ( ) for AT-students.
Lecturers
Subject  EC
Thomas Brouwer, Ben Betlem
Louis van der Ham*
Peter Hoeijmakers (AkzoNobel)
Project CT (PCT)
7 EC
Nieck Benes
Separation Methods (SM) with practicum
4 EC
Wim Brilman
Introduction Chemical Reaction Enginering (ICR)
Louis van der Ham Thomas Brouwer Ben Betlem Nieck Benes Wim Brilman

5. Intro Chemical Reaction Eng.
Subjects:
Model reactors (PFR, CSTR, BR),
Micro-mixing (RTD),
Reaction kinetics,
Parallel / series reaction scheme,
Isothermal and non-isothermal reactors
Mixtures with constant and changing density.

6. Separation Methods Subjects:
Equilibrium methods: distillation, absorption stripping, extraction,
Rate-based methods: adsorption, drying, crystallization,
Sedimentation, filtration and membranes.
Practicum.

7. Practicum Three setups are available: Distillation column
Absorption column
Adsorption column
Boundary conditions:
Each team of 3 students gets the setup for one week to do the experiments!
Preparation is essential to use the limited time available effectively!
Report results.

8. TOM-ST-K8 Project Chemical Technology
Project CT
TOM-ST-K8 Project Chemical Technology
Louis van der Ham
ME 218, tel. 5430

9. Design of an (existing) industrial process
Project CT
Design of an (existing) industrial process
(group of 3, report, excursion, oral exam)
Goals:
Integration of knowledge of previous modules,
New subjects: estimating data, design of distillation column and reactor, process control, process safety, economics,
Excursion to Safety Lab Nooryon, Deventer
Excursion to company to present and discuss the results and to see the actual industrial process

10. Example PCT 2018

11. SUBJECTS

12. Hydrogen Production Unit (HPU)
Design capacity: 90,200 Nm3/h H2
Product:
minimum vol% hydrogen
no water, H2S or other reactive components
Deliverd at least at 25 barg
Minimum 15 C, maximum 40 °C
Reduce byproducts as much as possible
Operate unit with as low as possible energy consumption

13. Hydrogen Production Unit (HPU)
Reforming of natural gas.
At high temperature ( ˚C), steam reacts with methane (CH4) to syngas (CO, H2,…).
CH4 + H2O → CO + 3 H kJ/mol
Necessary energy is obtained from burning part of the feed.
Water-gas-shift reaction for production of H2 from CO (at about 130 ˚C).
CO + H2O → CO2 + H kJ/mol

14. Hydrogen Production Unit (HPU)

16. R O S T E 2 1 8

17. Toetsing Minimum requirements for each subsection:
Introduction Chemical Reaction Eng. ≥ 5.0 of 5.5
Separation Methods ≥ 5.0 of 5.5
Project CT ≥ 5.5
If the minimum requirements are fullfilled:
Final mark = Intr. Chemical Reaction Eng. +
0.25 Separation Methods +
0.50 Project CT
≥ 6 required

18. Toetsing Module-niveau Osiris-niveau Onderdeel-niveau Proces Ontwerp
Onderdeel-niveau
Proces
Ontwerp
Min. cijfer
Onderwerp
Weegfactor
onderwerp
testmethode
Weeg-factor K8
Proces Ontwerp
≥ 6
Inleiding Chemische Reactorkunde
≥ 5.0 of 5.5
25%
Inl. Chem. Reactk.
eindtoets
100%
Scheidings-methoden
Evenwichts-scheidingen
Toets 1
≥ 5.0
30%
Snelheidsgebaseerde scheidingen + filtratie & membranen
Toets 2 (twee onderdelen)
25% + 25%
Practicum (destillatie, absorption, adsorption)
opdracht
≥ 5.5
20%
Project
Chemische Technologie
50%
Rapport
70%
Mondeling

19. Course Material Books: Industrial Separation Processes
by A.B. de Haan and H. Bosch
Chemical Engineering Design by
G. Towler and R.K. Sinnott
(elink via library)
Reader: Introduction Chemical Reaction Eng.
Hand-outs on Blackboard.

20. Questions?