Stabile fuel emulsions and method of making
US6607566B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1998 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Jul 1, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/328
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved method for producing highly stabile aqueous fuel emulsions. The method provides for selectively combining prescribed quantities of diesel fuel, purified water, alcohol, and an additive package and emulsifying the fuel mixture using a high shear mixer. The optimum viscosity and stability in the aqueous fuel emulsion is achieved by bypassing a selected quantity of the fuel emulsion around the high shear mixing device such that the final fuel emulsion includes a bi-modal droplet size distribution having droplet sizes less than about 15 microns in size. Additional stability and performance features of the aqueous fuel emulsion are attributed to the contents of the additive package that includes a combination of surfactants, lubricity additive, cetane improvers, citric acid, and methanol wherein each of the various additives may perform multiple functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.