Biomass waste has been recognised as a promising, renewable source for future transport fuels.
With 1.7 million hectares of pine plantation forests and 12 million cubic meters of annual residue
produced by sawmills and the pulp and paper industries, New Zealand presents a prime location
where utilisation of these resources can take the next step towards creating a more environmentally
friendly future. In this research, the process of fast pyrolysis was investigated using a laboratoryscale,
nitrogen-blown fluidised bed pyrolyser at CRL Energy. This equipment can process 1–1.5
kg/h of woody biomass in a temperature range of 450–550°C. The purpose of this rig was to determine
the impact of various processing parameters on bio-oil yields. Next, the pyrolysis liquids (bio-oil
and tar) were processed downstream into bio-bitumen. Pyrolysis experiments were carried out
on Pinus Radiata and Eucalyptus Nitens residue sawdust from sawmills and bark feedstock. The
properties of the collected products, including pyrolysis liquids (bio-oil and tar), gas and solid bio-chars,
were measured under different operational conditions. Further analysis was also performed
to determine pH, volatile content, chemical composition and calorific values of the products. The
ultimate goal for this project was to develop a feasible, advanced fast-pyrolysis system for a bio-bitumen
production plant using various biomass feedstocks. Additionally, a design for a bio-bitumen
production plant was developed, and techno-economic analysis was conducted on a number
of plant production yield cases and bio-bitumen manufacture ratios.
| Identifer | oai:union.ndltd.org:canterbury.ac.nz/oai:ir.canterbury.ac.nz:10092/8822 |
| Date | January 2013 |
| Creators | Kolokolova, Olga |
| Publisher | University of Canterbury. Chemical and Process Engineering |
| Source Sets | University of Canterbury |
| Language | English |
| Detected Language | English |
| Type | Electronic thesis or dissertation, Text |
| Rights | Copyright Olga Kolokolova, http://library.canterbury.ac.nz/thesis/etheses_copyright.shtml |
| Relation | NZCU |
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