An outline of the developments in gasoline production in the United States during these 15 years is given.The war-time demand of gasoline made se-veral methods necessary to take practice in large size, especially the developments in alkylation and catalytic cracking systems fulfilled the demand for the aviation gasoline with high-octane.The post-war conditions of gasoline industry for increas-ing demand of automobile and domestic fuels are also described.
The detailed technical informations are given with 39 references on the American processes for producing the aromatic hydrocarbons from petroleum by catalytic reforming, several synthetic methods with special catalysers as well as Thermofor method.Separation of aromatic compounds by distillation, extraction and adsorption methods is outlined.
Technology of petroleum chemistry mainly from ethylene, propylene and butylene is reviewed.Many derivatives from these basic materials are listed with their manufacturing procedures and uses.The expected Japanese development in this field is briefly discussed.