Advanced direct liquefaction concepts for PETC generic units phase II. Quarterly technical progress report, April--June 1996

A catalyst screening test (CST) was developed to evaluate the activity of various catalyst precursors for their liquefaction activity in a solvent comprising the solids-free components of a recycle solvent generated at Wilsonville, namely a ROSE SR V-130 deashed resid from period A and V-1074 heavy distillate from period B. Since the deashed resid has an elemental composition very nearly the same distillate from period B. Since the deashed resid has an elemental composition very nearly the same as in the solids-free fraction of the recycle solvent, the reactivity of these two resid and dry coal are nearly the same as in Run 263J, the overall composition should approximate the feed stream used in the Wilsonville pilot plant except for the absence of the solids component. Removing the solids from the reaction mixture should simplify the interpretation of the results since normally a considerable amount or recycled catalyst is contained in this fraction