High Test Gas by AMIT with Dan Roberts published on 2017-12-17T21:13:13Z In the 1930s, oil companies were struggling to boost the octane of gasoline. Eugène Houdry’s catalytic cracking process made it possible and may have helped win World War II. When it comes from the ground, crude oil is almost useless, a mixture of thousands of different types of hydrocarbons: asphalt to gasoline to natural gas. Each has a different molecular weight, therefore, crude oil must be refined to pull out the impurities such as sulfur compounds and separate different components such as kerosene, gasoline, fuel oil, and so forth. Read more at www.amomentintime.com.