Seminars - Chemical and Process Engineering - University of Canterbury - New Zealand

Seminars

Friday 10th October 2014 3.00pm- 4.00pm Von Haast 423
Dr. Toshihiro Fujita, the Chief Technology Officer of IDEC Corporation in Japan

Abstract: Applications of Ultrafine Bubble Technology and Industrialization through International Standardization with ISO/TC 281

Fine bubble is an innovative technology with the potential to be used in applications over a wide range of industries, such as cleaning, sterilization, agriculture, fisheries, food production, beverage, medical, pharmaceutical, and healthcare, which will create one of the key industries in near future. As the technologies of generation and measurement have advanced, various applications of fine bubble technology have been reported.
And in December 2013, the activity for ISO/TC 281 international standardization of fine bubble technology was started for the purpose of creating and promoting a healthy market.
The latest updates and trends of fine bubble technology including generation, measurement, various applications, and the importance of international standardization will be reported.

 

Tuesday 7th October 2014 4.00pm-4.30pm Von Haast 210
Simon Zhang will present on his PhD research work.

Abstract: The Evolution of Tar Formation, Conversion and Destruction in the Steam Biomass Gasification

Biomass gasification is a promising route for biomass energy production, which is a thermochemical process in which biomass is converted at high temperature (700-1200°C) and in the presence of a gasifying agent (air or steam) into a combustible gas mixture, called producer gas. However, many by-products are generated during gasification, such as tar, NOx, SO2 and ash, being the main technical hurdle for commercial implementation of biomass gasification. In particular, the presence of tar can cause operational problems, for example, leading to blockage of equipment, such as, pump, filter and engine. Therefore, tar elimination from the producer gas is the ultimate goal to make gasification an attractive option.

It is important to interpret the observations for tar formation, conversion and destruction during the gasification process. Tars are formed during gasification in a series of complex reactions. In general, the formation of tars begins at low temperature (400-600°C), cellulose and lignin in biomass are broken to form primary tars. When the temperature increases (600-800°C) these tars are transformed into secondary tars, and then in tertiary tars (800-1000°C). The formation of tar is highly dependent on the reaction conditions, such as biomass species, reaction temperature, catalytic effect of bed material and steam to biomass ratio.    

In my study, a series of experiments are tested in a 100kW dual fluidised bed gasifier in University of Canterbury to investigate and understand the fundamentals of tar formation, conversion and destruction during the biomass gasification, so that the optimization of tar elimination can be achieved.

CAPE Seminars

In 2012 CAPE held a Prestige Seminar Series. The following esteemed specialists within the Chemical and Process Engineering field presented over the course of the year.

2012 Series

Prof. Mohammed Farid - Auckland University
“Energy Management With Phase Change Materials: from buildings to electronic devices”
Abstract and Biography

Prof. Phil Wankat - Purdue University, Indiana
"Progress in Reforming Engineering Education"
Abstract and Biography

Prof. Max Lu - University of Queensland
"Molecular Frontiers of Chemical Engineering"
Abstract and Biography

Prof. Ian Cameron - University of Queensland
"Form, Function and Failure: delivering performance in engineering and education systems"
Abstract and Biography

Prof. Andrew Livingston - Imperial College, London
"Organic Liquids: a new frontier for nanofiltration"
Abstract and Biography

Prof. Paul Mulvaney - University of Melbourne
"Nanocrystal Based Solar Cells: one solution to photovoltaics"
Abstract and Biography

 

  • Department of Chemical
    and Process Engineering

    University of Canterbury
    Private Bag 4800 
    Christchurch
    New Zealand
  • Phone: + 64 3 364 2543
    Fax: + 64 3 364 2063
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