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Groupe de sécurité chimique et physique

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Publications associées (53)

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Landslide hazard mapping aims at providing very useful information for urban planning and for risk analysis. Though landslide risks represent a common threat to human lives and properties worldwide, the procedures applied for hazard and risk assessment are ...

2010

The technique of reaction calorimetry adapted for use with reactions in supercritical fluids was used to study some safety aspects of the free-radical dispersion polymerization of methyl methacrylate in scCO2. The reaction heat rate profile was found to ch ...

Wiley-Blackwell2009

The objective of this thesis is the development of a compact reactor for continuous three-phase reactions in single-pass configurations. The design is based on a bubble column reactor staged with layers of catalytic material. To make the reactor suitable f ...

EPFL2009

Optimization of reaction calorimetry for monitoring chemical reactions in supercritical fluids

Charalampos Mantelis

The PhD thesis deals with the optimization of the reaction calorimetry technique to monitor chemical reactions in supercritical fluids. The aim is to develop this thermal analysis technique to monitor the heat released by a chemical reaction in a high pres ...

EPFL2008

The possibility to increase the performance (productivity or selectivity) of a chemical reactor by using periodic variations of reaction parameters (e.g. reactant concentration or temperature) has been theoretically envisaged since the beginning of the 70t ...

EPFL2008

The heat flow reaction calorimetry technique was developed for reactions with supercrit. fluids and was applied to monitor the free-radical dispersion polymn. of Me methacrylate in supercrit. carbon dioxide (scCO2). The main math. equation for the calorime ...

2008

Optimization of reaction calorimetry with supercritical fluids: A complete term-by-term analysis of the heat flow equation

Thierry Meyer, Charalampos Mantelis

A complete anal. of the heat flow equation in reaction calorimetry with supercrit. fluids is presented. An esp. developed reaction calorimeter is employed to study the challenges introduced by the supercrit. state of the reaction mixt. and the particularit ...

2008

Online optimisation and detection of process upset in semi-batch reactors using a kinetic modelling approach

Julien Léo Billeter, Konrad Hungerbühler

Process Analytical Chemistry/Technology has tremendously evolved in the last decades due to the development of multivariate online sensors that are able to monitor the properties of industrial processes in real time [1, 2]. Online monitoring of product qua ...

2008

The free-radical dispersion polymn. of Me methacrylate was studied using the reaction calorimetry technique. An esp. developed calorimeter for use with supercrit. fluids was employed and a set of expts. was explicitly designed to isolate the effect of the ...

Wiley-Blackwell2008

The impact of capital mobility restrictions on the diversification benefit for risk at the group level of a financial conglomerate is an important aspect in risk management. In this paper we propose a new bottom-up approach for realizing diversification be ...

Vienna Institute of Finance2008