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Understanding liquid- liquid systems for the production of fragrances.


Project Description

EPSRC supported PhD with Integrated Studies: Understanding liquid- liquid systems for the production of fragrances.

Academic supervisors: Federico Alberini, Andrew Ingram (Chem Eng University of Birmingham)
Industrial supervisors: Estela Espinos Ferri, Carlos Lopez Cruz (IFF)

A tax free bursary of £17,800 p.a. plus fees paid

Liquid-liquid immiscible systems are broadly employed in industrial process. IFF (International Flavours and Fragrances Inc.) is looking for a better understanding of one of their processes, where liquid-liquid mixing and reaction are involved. In the literature, there is much research work performed in stirred vessels, but there is a lack of knowledge on combining the mixing properties of a mixing vessel and the dynamic of reactions. The proposed PhD with Integrated Studies project is aimed to combine the fluid dynamic properties of the liquid-liquid system together with reaction models to develop better knowledge of IFF industrial process. This will be studied at laboratory, pilot plant and industrial scale. Thus, this provides a unique opportunity to really explore a better way to improve scale up and its impact on reaction performance under a fundamental /basic approach, but also on a practical and applied industrial scale.

Aims and objectives:
- Measuring droplet size for different organic/ acid ratios using SOPAT (Smart Online Particle Analyser Technology) and off-line measurements such as Mastersizer 2000.
- Identification when the system behaves as O/W or W/O emulsion is critical to optimise the process. This will be achieved using conductivity measurements (ERT Electrical resistance tomography)
- Measuring evolving torque during mixing process and relate this measurement to rheological behaviour of the emulsion.
- Identify mimic fluids for different stage of the mixing process combining torque measurements to rheological measurements (Vane geometry).
- Measuring flow fields using PIV (Particle Image Velocimetry, in the vessel for the different mimic fluids which represent different time step of the mixing process; this will help to identify dead zones and estimation of local energy dissipation.
- FTIR spectrometry will be used to track reaction.

Funding Notes

A tax free bursary of £17,800 p.a. plus fees paid. To be eligible for EPSRC funding candidates must have at least a 2(1) in an Engineering or Scientific discipline or a 2(2) plus MSc. For informal enquiries please contact . For more details on the Engineering Doctorate scheme please visit View Website

Related Subjects

How good is research at University of Birmingham in Aeronautical, Mechanical, Chemical and Manufacturing Engineering?
Chemical Engineering

FTE Category A staff submitted: 32.50

Research output data provided by the Research Excellence Framework (REF)

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