3349.     ---------------.  [TECHNICAL OIL MISSION.]  [Experience With the Semicommercial Synol Research Plant ME 458, Leuna Works, Oct. 10, 1944.]  Transl. of German documents on the Development of Iron Catalysts for the Fischer-Tropsch Synthesis.  Part II, 1946, pp. 41-59; TOM Reel 86, bag 3979, item 78.

        Detailed descriptive matter covering catalyst reduction, synthesis apparatus, CO₂ extraction, activated C adsorption, and distillation units. The catalyst is the standard fused Fe type (WK 17) of particle size 0.5-1.0 mm. and reduced at 450° at a space velocity of 1:2,000 of H₂.  The synthesis is performed by recycling at a thoughput of 1:2,000 or 3,000 m.³ of gas per m.³ of catalyst per hr. with a gas conversion of 150 m.³ per m.³ of catalyst per hr.  The yields amount to 170 gm. of products heavier than C₂ per m.³, of which 35 gm. are gasol and 30 gm. paraffins boiling above 400°.  The alcohol content in the lower-boiling fractions is 50-65%; from about C₁₄ upward the alcohol content declines, at C₁₈ about 30-40% of alcohols are obtained.  The sum of the alcohols and olefins declines from 80% in the lower fractions to 65% in the boiling range of chain, the olefins likewise.  The higher fractions contain esters to about 10% in the region of C₁₀ alcohols to 20% in the region of C₁₈ alcohols.  The content of the aldehydes and ketones in all fractions amounts to 1-2%.