Abstract
Co-processing of six Alberta subbituminous coals and Suncor bitumen (Athabasca deposit) by using H/sub 2/ (Fe/sub 2/O/sub 3/ catalyst) and CO/steam (K/sub 2/CO/sub 3/ catalyst) as reducing atmospheres have been studied. Results show that CO/steam gives significantly higher overall conversion compared to H/sub 2/ with certain coals. However, the quality of products (as determined by distillation and subsequent extraction) are better when H/sub 2/ was used in the co-processing of coal with bitumen. A second stage catalytic hydrogenation is required to upgrade heavy hydrocarbons (extracts) which form almost 50% of the product.
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