Vapour phase contaminations, cargo blending, bulk mineral challenges

On Thursday 19 March 2015, CWA International Ltd (http://www.cwa.uk.com/) gave a presentation to Thomas Miller Hellas.

Dr Nick Chapman, who is a food scientist with a background in biology and agronomy, gave a short introduction about CWA and its areas of expertise which cover oil, gas and chemicals together with food and dry commodities. The company has also dedicated departments in metals and minerals, marine ports, fire and explosion. In addition to this CWA also offers services in forensic data analysis, risk safety and environmental issues.The first presentation was given by Mr Pierre De Jager who is a chemist with experience in petro-chemical, chemical and edible cargoes. Pierre talked about vapour contamination which might occur during the simultaneous carriage of incompatible petroleum grades such as gasoil and gasoline.  He then went on to talk about blending from a chemist's perspective and concentrated on a recent case where residues of asphaltenes in fuel oil had solidified and clogged the ship's pumps. 

The final presentation was given by Andrew Wells an engineer in materials, minerals and mining with over 35 years of experience. Andrew talked about the IMSBC Code and in particular about Group B and Group C cargoes that can self-heat, release hydrogen or poisonous gases. Andrew also mentioned the phenomenon of self sustaining decomposition and cargoes that can cause corrosion damages to ships.

The presentation was well received and was followed by a traditional drink at the local Irish pub to thank CWA for their time and efforts.

Staff Author

UK P&I

Date26/03/2015

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