1839.  ------. [KEMP, L. C.] (The Texas Co.). Motor Fuel. United States Patent 2,286,814, June 16, 1942; appl. filed Oct. 28, 1939, Serial No. 301,739; 10 claims (Cl. 196-10). Chem. Abs., vol. 36, 1942, p. 7272.

Describes arrangement of apparatus and a process is employed for the manufacture of high antiknock motor fuel hydrocarbons, which involves catalytically converting a mixture of CO and H₂ to a synthetic hydrocarbon mixture composed mainly of hydrocarbons having 1-10 C atoms/mol., the C₃-C₄ fraction of which consists essentially of aliphatic hydrocarbons composed largely of olefins and relatively free from isobutylene, separating from this synthetic mixture a fraction rich in normal butane and another fraction rich in normal butylenes, subjecting the butane-rich fraction to isomerization so as to form isobutane, separately treating the resulting isobutane with the butylene-rich fraction by contact with an alkylation catalyst maintained under alkylating conditions and in the substantial absence of isobutylene, whereby isobutane is alkylated to produce normally liquid saturated hydrocarbons having a high antiknock value and boiling within the range for motor fuel.