2663. ------. [PIER, M., AND FREE, G.] [Use of Aromatics in Vapor-Phase Oil-Hydrogenation Feed Stock.] German Patent Appl. —, filed Apr. 26, 1941; APC SN 390,534.

20-50% of benzol or toluene is mixed with vapor phase feed, catalytic cracking feed, or synthesis gas for Fischer-Tropsch process.