Dynatec low-energy reactor for silicon
The Dynatec reactor is a new patented solution for production of solar and electronic grade polysilicon. The method combines a chemical reactor with a centrifuge in order to achieve the quality and predictability of the Siemens reactor with cash cost lower than Fluidized Bed Reactor (FBR). The method has already proven the ability to grow over 40 times faster than the Siemens method, and with an energy consumption which is lower than FBR. This project aims to show that the process may be fully automated and stable over longer periods of time. If the project succeeds, the process will be cheaper than FBR both in cash and capital cost.
This research project will explore the central problems for continued development of a new technology for producing highly pure silicon for solar cells. Dynatec has recently shown promising results for this new method. The method challenges the technology used in today’s industry, and has a much lower energy use, high efficiency and larger possibilities for automated use.
In this project, Dynatec Engineering and IFE will together with other partners build a second generation research reactor, where both reactor design and several new mechanisms for more automated use will be tested. The results will give critical information in the continued development of the technology, and will make Dynatec Engineering capable of delivering machines for factories for production of highly pure silicon in few years. A central part of the work will be to test if the silicon material produced in the reactor satisfies the solar cell industries demands for quality, and examine how the process can be controlled to optimize the material quality.
High purity silicon is the most important part of around 90% of all solar cells, and silicon based solar cells will also be leading in the future due to high efficiency and low production cost. The Dynatec reactor will ensure that the solar cells of the future are even more competitive in price, and will use less energy in the production process. The project will increase competence and competitiveness for Norwegian solar cell industry, and can make possible future production of highly pure silicon for solar cells in Norway.
The project is a collaboration between Dynatec Engineering, IFE, C. H. Evensen Industriovner, Dynatec and Dynatec SMV. The project has received financial support from the EnergiX program under the Research Council of Norway.
More information: http://www.dynatecengineering.no/
Werner Filtvedt, Hallgeir Klette and Sverre Sørensen in front of the second generation of the Dynatec reactor.
2016-08-03 Trygve Tveiterås Mongstad / Marte Orderud Skare