"The Bureau of Mines has presented an industry-scale oil shale project report in which a 234,000 B/CD operation is designed and its cost estimated. Crushed oil shale is retorted by the gas-Combustion retorting process. The crude shale oil is visbroken near the retorting site and pipelined from Colorado to California. The visbroken oil is thermally cracked, yielding naphtha and residuum. Residuum ids utilized, in part, as refinery fuel and the balance is marketed as bunker-grade fuel oil. The cracked naphtha is split into two fractional, the light naphtha being treated with 5 pounds of 98 percent sulfuric acid per barrel. The heavy fraction is reformed with a hydrogen atmosphere over cobalt-molybdate catalyst and the reformate treated lightly with concentrated sulfuric acid. As the first step in a refining evaluation program being carried out by the Planning and Evaluation Section, an evaluation of other treating steps that might be applied. to thermally cracked naphtha has been made and the results indicate that thermally cracked naphtha can be treated more economically With sulfuric acid than by catalytic reforming over cobalt-molybdate catalyst. The present study is a preliminary investigation of the possibility of processing the residuum formed by crude oil thermal cracking into products for which there is a more reliable market. This study completes the first evaluation of the refining procedure in which the basic step is thermal cracking of the total crude shale oil."