Preliminary Economic Assessment of Microwave Regeneration of Activated Carbon for the Carbon in Pulp Process
Source abstract
Abstract
Granular activated carbon was regenerated at 650, 700 and 750 °C in a multimode cavity at 2450 MHz. Acceptable carbon performance was obtained by regeneration at 650 °C for zero minutes. Microwave regenerated material out-performed conventionally regenerated carbon. The preliminary capital cost estimate for a 120 kW microwave unit to process 120 kg/h was $ 150 000 and the operating cost $ 70/t carbon. Comparison with competing technologies shows that there is merit in further investigation.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Catalysis for Biomass Conversion · Catalysis and Hydrodesulfurization Studies
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References (12)
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1. Avraamides, J. and La Brooy, S.R., 1988. Evaluation of different reactivation systems available for carbons used for gold recovery, Randol Gold Forum ‘88, Scottsdale, Arizona: 321–327.
2. Balbaa, I. S., Oda, S. J., Hague, K. E., Kondos, P. D. and MacDonald, R. J. C., 1991. Microwave reactivation of spent CIP carbon, Microwaves: Theory and Application in Materials Processing, eds. D.E. Clark, F.D. Gac and W.H. Sutton,Ceramic Transactions,(21) The American Ceramic Society, Westerville, Ohio: 475–483.
3. Bradshaw, S. M. and Van Wyk, E. J., 1995. The microwave regeneration of activated carbon, IEEE/SAIEE Antennas and propagation and microwave theory and techniques symposium, Pretoria: 163–170.
4. Grimsley, W.D., 1991. Regeneration and acid washing practices, School Recent Developments in In-Pulp Technology, Randburg, South African Institute of Mining and Metallurgy.
5. Hague, K. E., Kondos, P., MacDonald, R. J. C. and Laforest, D., 1991. Microwave activation of carbon. Application for Canadian patent 2,008,242.
6. Hague, K. E., MacDonald, R. J. C., Oda, S. J. and Balbaa, I. S., 1993. The microwave reactivation of CIP spent carbon, inProceedings of Canadian Mineral Processors Annual Conference,Ottawa.
7. Laxen, D. A. and Brown, T. D., 1984. The carbon-in-pulp plant at Rand Mines Milling & Mining Company Limited: Problems encountered and developments introduced, Paper B7/2, inMintek 59 International conference on recent advances in mineral science and technology,Sandton, South Africa.
8. Van der Westhuysen, J. P. W., 1992. A mathematical model for the thermal regeneration of spent activated carbon, Masters Thesis, University of Stellenbosch.
9. Van Staden, P. J., 1990. Parameters governing the performance of a continuous, direct resistance heating, carbon regeneration furnace, M.Sc. Eng. thesis, University of the Witwatersrand.
10. Van Staden, P. J., and Laxen, P.A., 1991. A continuous directive resistive heating furnace for the regeneration of activated carbon, Randol Gold Forum CAIRNS ‘91, Cairns, Australia: 393–397.
11. Van Wyk, E.J., 1997. Microwave regeneration of activated carbon, M. Ing. Thesis, University of Stellenbosch, Stellenbosch, South Africa.
12. Van Wyk, E.J., Bradshaw, S.M. and de Swardt, J.B., 1996. The dependence of microwave regeneration of activated carbon on time and temperature, submitted to International Journal of Minerals Processing.