5.6. Three-step separation Ofdiluted bitumen emulsion.................................164
5.6.1. Methods......................................................................................................164
5.6.2. Results and discussions.............................................................................165
5.7. Karl Fischertitration of water in diluted bitumen.....................................166
5.7.1. Introduction.................................................................................................166
5.7.2. Materials and methods................................................................................167
5.7.2.1. Materials...............................................................................................167
5.7.2.2. Solubility test Ofdiluted bitumen in toluene-methanol mixture solvent... 167
5.7.2.3. Water content measurement K-F titration.............................................168
5.7.2.4. Titration calibration...............................................................................168
5.7.3. Results and discussions.............................................................................168
5.7.3.1. Solvent selection for diluted bitumen....................................................168
5.7.3.2. K-F titration calibration of water content in diluted bitumen...................170
5.7.3.3. Lower limit of K-F titration.....................................................................172
5.7.3.4. Water content in oil layer after emulsion separation..............................173
5.8. Effects of solids, dilution ratio and silicate on emulsion stability..............174
5.8.1. Materials and methods................................................................................174
5.8.1.1. Materials and emulsion preparation......................................................174
5.8.1.2. Solid content and distribution by centrifugation.....................................175
5.8.2. Results and discussions.............................................................................175
5.8.2.1. Separation of solids-free emulsion........................................................175
5.8.2.2. Effects Ofsilicate...................................................................................181
5.9. Asphaltene content of solid in different layers of emulsion......................184
5.9.1. Materials and methods................................................................................184
5.9.2. Results and discussions.............................................................................184
5.10. Remarks on emulsion separation..........................................................185
5.11. Reference..............................................................................................186
Chapter 6. Conclusions and future work...........................................................184
6.1. Conclusions............................................................................................188
6.1.1. Emulsion characterization by NMR.............................................................188
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