The name is absent

Chapter 1

of rag layer eventually occupies the whole container and stops the separation
process. Our study is related to this final stage separation of bitumen froth
treatment.

1.2. Project objectives

During bitumen froth treatment process of Athabasca oil sands, stable
water-in-oil emulsions are problematic because of clay solids. The objectives of
this study are to characterize the time evolution of the properties Ofemulsions and
to reach complete separation of water, oil and solids using appropriate demulsifier
with proper separation procedure.

Detailed objectives are:

1) Quantify the amount of water and oil in the emulsions made from diluted
bitumen containing clay solids.

2) Characterize the rag Iayerwhich develops during emulsion separation.

3) Reduce or eliminate rag layer with proper emulsion separation procedure.

In the thesis, Chapter 2 presents extensive background information.
Emulsions and emulsion stability are reviewed, especially literature on the
separation of water in diluted bitumen emulsions.

Chapter 3 focuses on NMR techniques applied in the characterization of
water-in-oil emulsions.

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