Fuel oxygenates: Organic carbonate synthesis
- Texaco Inc., Beacon, NY (United States)
Owing to the 1990 amendments to the Clean Air Act, two major programs, namely the oxygenated fuels program and the reformulated gasoline program have been mandated. Currently, ethers (MTBE, ETBE, and TAME) and alcohols (mainly ethanol) are employed as fuel oxygenates. However, several dialkyl carbonates exhibit attractive fuel properties and might emerge as future fuel oxygenates. This paper consists of an overview of related literature and highlight of some of our work on the synthesis of organic carbonates from C, feedstocks. Dialkyl carbonates such as dimethyl carbonate (DMC), diethyl carbonate (DEC), and ethyl methyl carbonate (EMC) exhibit excellent gasoline blending properties such as high blending octane numbers and low blending Reid vapor pressures (RVP). Owing to their significantly higher oxygen content compared with alcohol (e.g., ethanol) and ether (e.g., MTBE, ETBE, and TAME) oxygenates, lower volume percent of the carbonate blending components will be needed to satisfy the 2.7 and 2.0 wt% oxygen requirements of the oxygenated and reformulated gasoline programs, respectively.
- OSTI ID:
- 433261
- Report Number(s):
- CONF-950402--
- Journal Information:
- Preprints of Papers, American Chemical Society, Division of Fuel Chemistry, Journal Name: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry Journal Issue: 1 Vol. 40; ISSN ACFPAI; ISSN 0569-3772
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of use of low oxygenate gasoline blends upon emissions from California vehicles. Final report
Thermodynamic aspects of reformulation of automotive fuels