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HomeDevelopment of advanced large-scale low NOx oxy-fuel burner for PF combustion (Oxyburner)
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The new oxy-fuel process offers and also requires R & D activities along the whole process chain. Still, one key component in a highly efficient and environment-friendly combustion system is the burner. In the past, much efforts was spent to develop low-NOX burners for all ranks of coal and to efficiently integrate such burners into advanced firing concepts such as furnace air staging or fuel reburning. The project focuses on the development and testing of an efficient, clean, large scale low-NOX oxy-fuel burner concept for lignite and sub-bituminous coals. In this context substantial firing system and burner parameters were investigated in order to gather a complete evaluation of a single component (burner) and the overall potential of this new process. Some of these parameters are listed below: • testing of an advanced low-NOx oxy-burner design (up/down scaling); • oxygen injection method (pre-mixing, direct injection); • operational issues like switching from air to oxy-fuel mode and vice versa; • burner performance evaluation by using different CFD models; • process evaluation by investigating different cooling concepts. The project has combined experimental work, CFD modelling and cross validation through experimental data. The generated up/downscaling results of a 500 kW and the 30 MWth produces results that are fruitful for commercial application. Furthermore, in-flame measurements and operational experience regarding burner testing from a 30 MWth lignite-fired oxy-fuel plant are presented. Two individual large-scale advanced low-NOx burner designs (swirl and jet burner) are worked out as being applicable for lignite and medium- to high-volatility sub-bituminous coals.
- Published:
- Corporate author(s): Directorate-General for Research and Innovation (European Commission)
- Personal author(s): Lysk, S ; Mönkert, P ; Krohmer, B ; Grathwohl, S ; Maier, J ; Doukelis, A ; Schnell, U ; Le Dirach, J ; Jentsch, N ; Kluger, F ; Lemp, O
- Themes: Industrial research and development , Basic metals industry, steel industry
- Subject: coal , coal processing , combustion gases , furnace , research report , testing
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| ISSN 1831-9424 | ISBN 978-92-79-24942-6 | DOI 10.2777/97400 | Catalogue number KI-NA-25333-EN-N |
- Released on EU publications website:
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