Asterios Gavriilidis' Webpage

Photo of Asterios Gavriilidis Professor in Chemical Reaction Engineering

Phone: +44 (0)20 7679 3811
Email: a.gavriilidis@ucl.ac.uk
Prof Asterios Gavriilidis
Department of Chemical Engineering
University College London
Torrington Place
London WC1E 7JE
United Kingdom

Asterios Gavriilidis received his Diploma in Chemical Engineering from Aristotle University of Thessaloniki, Greece, in 1988. He obtained an MSc and a PhD in Chemical Engineering from the University of Notre Dame, U.S.A., in 1990 and 1993 respectively. After that he joined the Chemical Engineering Department at UCL where he is currently Professor of Chemical Reaction Engineering. His research work is in the area of chemical and catalytic reaction engineering with particular focus on the design of microengineered, multifunctional, intensified reactors. Both experimental and theoretical approaches are used for this purpose.

Prof. Gavriilidis is a Chartered Engineer, Fellow of the Institution of Chemical Engineers (IChemE), UK representative in the Working Party of Chemical Reaction Engineering (WP CRE) of the European Federation of Chemical Engineers (EFChE), subject editor of Chemical Engineering Research and Design and committee member of the Process Intensification Network and the IChemE Applied Catalysis Subject Group.

Research Interests

Catalysis and Catalytic Reactors

catalytic micro reactor

A large fraction of the chemical, refinery and pollution control processes require catalysis. Nearly 90% of all chemical manufacturing processes require catalysts. In heterogeneous catalysis, the method of catalyst preparation and the associated parameters can have a profound effect on the final catalyst characteristics and its performance.

We have addressed the effect of impregnation and drying conditions of Pt, Pd and Au catalysts, as well as radial pore size distribution for HDM catalysts. Unconventional methods of catalyst deposition, such as CVD have also been researched. The issue of optimal catalyst distribution in pellets or reactors is an important aspect of some investigations within the group, while in others the issue of catalyst preparation is addressed in close connection with the reactor design. In situ analytical tools, such as Raman spectroscopy, are used to study catalytic reactions in specially designed microfabricated reactors.

Intensified and Multifunctional Reactors

intensified reactor

Process intensification involves the design of equipment, orders of magnitude smaller than traditional equipment in the chemical industry. Intensified reactors can lead to improved control of reactions, higher energy efficiency, reduced capital costs, improved safety. We are studying two approaches for process intensification. Microreactor technology (see below) and multifunctional reactors (where reaction is combined with another unti operation such as stripping). Theoretical work within the group pioneered the design of compact steam reformer/catalytic combustion units of catalytic plate reactor arrangement. Research is focussing on the design of continous- flow, liquid and multiphase catalytic reactors of relevance to fine chemicals and pharmaceuticals production, where improved mass transfer, reactor operation or reactant contacting patterns can lead to higher selectivity. Microfabricated mesh and membrane reactors are also investigated for carbon capture applications.

Microreactor and Microprocess Engineering 

micro reactor

Microreactors allow operation in temperature-concentration-pressure domains difficult to access or completely inaccessible with conventional equipment. Larger amounts of energy and mass can be transferred between interfaces. Molecules can be better steered towards the desired outcome through improved intrinsic spatiotemporal control. This eventually results to higher conversions and selectivities and thus to more profitable and environmentally-friendly processes. We are investigating theoretically and experimentally the design, characterisation and evaluation of micro-structured reactors for gas, liquid or multiphase reactions where low residence time, efficient heat transfer and effective contact between reactants are required. Due to the laminar flow in microchannels, mixing and mass transfer have to be carefully managed. Microchannels engineered to provide improved residence time distribution, mixing or mass transfer are therefore investigated.

Teaching Interests

Prof Gavriilidis is involved in teaching reactor engineering design principles and experimental aspects of unit operations. Below are the modules he is currently involved in teaching. (Note that each link is restricted to access only by students currently registered on the module.)

Page last modified on 15 sep 11 09:28