AUTOMOTIVE FUEL EXTENDERS FROM C4 HYDROCARBONS. NATIONAL ENERGY RESEARCH AND DEVELOPMENT PROGRAM END REPORT

An investigation of the effect of adding octane boosting extenders to some Australian petrols was carried out. The figures presented in this report can be used for the economic evaluation of possible benefits to a refiner should he decide to use these octane boosters. Octane number increases and changes in exhaust emissions produced by the additives were measured using a cfr test engine. Petrol volatility changes were also determined. Dynanometer tests with a 4 cylinder and a 6 cylinder car engine of recent Australian manufacture completed the work. Mtbe (methyl Tertiary butyl ether) additions gave the best results ie, good octane enhancement that is sustained at high engine speeds, and little effect on petrol volatility. Tba (Tertiary butyl alcohol) and sba (secondary butyl alcohol) showed lower activity; but the combination of tba and methanol was reasonably effective. Methanol and ethanol additions gave the highest octane increases, which were, however, reduced at high engine speeds. They also substantially raised the petrol volatility and hence caution is required when blending them into petrol (a). Includes appendices of: part a and b of 'evaluation of octane extenders in petrol' by birrell, js and tait, nc (repco engine technical centre).

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0642884854
• Corporate Authors:

  Australian Department of Resources and Energy

  P.O. Box 858
  Canberra, A.C.T.,   Australia 
• Authors:
  • Braun, A R
• Publication Date: 1983-6

Language

• English

Media Info

• Pagination: 100 p.
• Serial:
  • Publication of: Australian Department of Resources and Energy
  • Issue Number: 192
  • Publisher: Australian Department of Resources and Energy
  • ISSN: 0811-9570

Subject/Index Terms

• TRT Terms: Additives; Evaluation and assessment; Exhaust gases; Force; Fuel consumption; Fuels; Hydrocarbons; Measuring instruments; Motors; Octane number; Performance; Tests
• Geographic Terms: Australia
• Subject Areas: Energy;

Filing Info

• Accession Number: 00498794
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 0-642-88485-4
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM