The Examination of Experimental Alcohol Gasoline Blends
Abstract
The examination of six experimental fuels submitted to this Laboratory for test on 13 July 1939 yielded the following results: The experimental fuels appear to be compounded from a gasoline base stock containing some aromatic hydrocarbons, from ethyl alcohol, possibly denatured with methanol, and from fusel oil. The latter probably functions as a blending agent. All the blends carry some water ranging in concentration from l to 10 per cent. The concentrations of alcohols vary from 25-60 per cent and of hydrocarbons from 70-35 per cent in the six samples. The distillation curves are roughly comparable and are characterized by a short but definite plateau in the boiling range of amyl alcohol. The gum content is abnormally high but the material appearing as gum seems to be an oil rather than a typical gum deposit. The water tolerance of all the samples is good compared with simple ethanol-gasoline blends but separation into two phases will occur if an excess of water be added. The cloud point in no case is sufficiently low to pass Naval specifications but is lower than might be anticipated in view of the water content. There is no apparent correlation between the determined water content, cloud point, and water tolerance; nor was such expected since the ratio of hydrocarbon to alcohol and of ethanol to amyl alcohol varies from sample to sample as does the actual water content.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 10, 1939
- Accession Number
- AD1159343
Entities
People
- Dan Jr Fore
- R. W. Bost
Organizations
- United States Naval Research Laboratory