New technique defines the limits of upgrading heavy oils, bitumens

A simple, new technique relates product gravity to its elemental composition in a variety of processes, using data for Alberta heavy oils and bitumens. This approach allows integration of material balances with a prediction of product quality for existing process technologies and proposed schemes.Delayed coking and hydroconversion examples illustrate the contributions of different reactions to product characteristics and indicate the improvements in these reactions that are required to achieve significant gains in yield or product gravity.Available and proposed processes for converting heavy oils, bitumens, and heavy residue fractions involve many simultaneous reactions, from cracking to ...

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