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Flash Hawaii job for Waikato science graduate

22 January, 2014

Just three weeks after handing in his masters thesis, University of Waikato chemistry graduate Simon Williams was on a plane to Hawaii.

Since that day two years ago he has worked as a research assistant at the University of Hawaii’s Hawaii Natural Energy Institute (HNEI), in the Renewable Resources Research Laboratory (R3 Lab). The R3 Lab is a test-bed for the development of innovative technologies and processes for the conversion of biomass into fuels and other products.

Simon has been involved in the laboratory’s work on Flash Carbonization™ and studying the thermochemistry of biomass conversion via pyrolysis into biocarbon (charcoal).

“Flash Carbonization™ involves the ignition of a flash fire at elevated pressure in a packed bed of biomass. The elevated pressure, allows the fire to quickly spread through the bed, converting the biomass to biocarbon. High carbon yields can be achieved in as little as 20 or 30 minutes. By contrast, conventional charcoal-making methods take from eight hours to several days,” says Simon

The long term goal is for small communities like those in Hawaii to be able to turn locally produced biomass such as macadamia nut shells, into biocarbon. The biocarbon can be used as a fuel to replace imported fossil fuels, or in agriculture for soil beneficiation and carbon sequestration.

Simon works on a number of projects running in the lab, with a focus on the chemical analysis of the gases produced in the experiments. “I run a piece of equipment called a Micro GC, which is a specialised miniature gas chromatograph used to measure the composition of the gases from our carbonisation experiments.”

He says his Bachelor of Science (BSc) and Master of Science (MSc) degrees set him up well for his role. “I learnt a lot about various instruments and instrument support which is a significant part of my job now.”

As a school student Simon attended Tauranga Boys’ College and got a head start on university, by completing two level 100 papers at Waikato University while in Year 13. This made the transition to tertiary study easier and allowed him to complete some 200 level papers in the first year of his BSc.


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