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Barrier layer formation for H2S, CO2 and water vapour at 200 F (93.3ºC) and 1500 psi in the presence of hydrocarbons

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  • Full or part time
    Prof P Budd
    Prof I Kinloch
  • Application Deadline
    No more applications being accepted
  • Funded PhD Project (European/UK Students Only)
    Funded PhD Project (European/UK Students Only)

Project Description

Polymeric materials are permeable to combinations of CO2, H2S and water vapour to different extents. Transport of these species through internal polymeric liners to the surface of reinforcing steel fibres can cause corrosion if critical combinations are reached. Consequently there is a need to reduce the cumulative concentration of these species arriving at the fibre surface over a 30 year lifetime.

This proposal will look at a new generation of barriers utilising graphene’s imperviousness to even helium. It will build upon a recently completed PhD project in which graphene-polyamide composites successfully formed a barrier layer against supercritical CO2 and H2S. These composites were prepared in Manchester, where there are extensive microstructural characterisation facilities, and permeation tests with CO2 and H2S mixes were carried out at TWI. The proposed work will extended these barrier materials towards more realistic fluids (CO2, H2S and water vapour in the presence of hydrocarbon fractions).

Crucial to this project is TWI’s unique permeation facility that allows the simultaneous quantification of permeated species such as CO2, H2S, CH4 and vapours of water, toluene, cyclohexane, xylene and toluene from complex mixtures. Alternatively the species can be presented to the polymer surface in various sequences without interruption. Generally specimens are disc shaped with diameters of 40 or 80 mm and the fluid mixes can be pressurised to 1500+psi at 93.3ºC. On site at TWI, analytical methods are used for post-test analysis on specimens contaminated with H2S. The PhD student will spend at least 50% of the project period at TWI’s facilities in Granta Park near Cambridge, under the supervision of the TWI supervisor.

Contact for further Information:
Prof. Peter M. Budd
Email: [Email Address Removed]

Funding Notes

This is a 3 year PhD studentship funded by TWI – National Structural Integrity Research Centre (NSIRC)

Eligibility is restricted to UK/EU applicants with 3 years residency in the UK.

The expected start date will be September 2018.

Applicants are expected to hold a minimum upper second class undergraduate degree (or equivalent) in Chemistry, Chemical Engineering, Materials Science or a related subject. Please select PhD Materials Chemistry on the online application form.


T.P. Raine, O.M. Istrate, B.E. King, B. Craster, I.A. Kinloch and P.M. Budd, Graphene/polyamide laminates for supercritical CO2 and H2S barrier applications: An approach toward permeation shutdown, Adv. Mater. Interf., 2018, 5, 1800304 DOI: 10.1002/admi.201800304

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