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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
EN
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EL
| URI: | http://purl.tuc.gr/dl/dias/48A28BC7-D491-49A4-ADC8-979E84754147 | ||
| Year | 2007 | ||
| Type of Item | Peer-Reviewed Journal Publication | ||
| License |
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| Bibliographic Citation | V.C. Kelessidis , C. Tsamantaki , A. Michalakis ,G. E. Christidis , P. Makri , K.Papanicolaou , A. Foscolos ,"Greek lignites as additives for controlling filtration properties of water–bentonite suspensions at high temperatures ", Fuel. ,vol.86, no. 7-8 ,pp.1112-1121 ,2007.doi:10.1016/j.fuel.2006.10.009 https://doi.org/10.1016/j.fuel.2006.10.009 | ||
| Appears in Collections |
The effectiveness of Greek lignites to control the filtration characteristics of water–bentonite suspensions and to minimize formationdamage at high temperatures was studied. Twenty-six lignite samples from various peat/lignite deposits in Greece were used togetherwith a commercial lignite product. The contents of humic and fulvic acids, humins, oxygen, ash and the cation exchange capacity oflignite samples were examined with respect to fluid loss of these suspensions. The results show that most samples provided very goodfiltration control of the water–bentonite suspensions after exposure to 177 C with some being superior to the commercial product. Betterperformance was observed after addition of 3% w/v lignite. Total humic and fulvic acids as percentage of dry lignite matter and theorganic matter as lignite percentage showed a weak inverse correlation with the fluid loss volumes.
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