DME AS FUEL FOR DIESEL ENGINES

DME - DRIVMEDEL FOER DIESELMOTORER: PRODUKTION, DISTRIBUTION OCH ANVAENDNING

DME, dimethylether, is a fuel suitable for diesel engines but is a gas that must be handled under pressure that turns it into liquid. From an environmental and health standpoint DME is harmless; it is used as a propellant in aerosol cans. It is produced via synthesis gas and can thus be made from all raw materials including biomass. DME is the ether that can be produced at least cost. It is cheaper than methanol. The production process is very similar to that for methanol. At present it is made from methanol but can be directly synthesised from synthesis gas. Synthesis of DMA is about 5 per cent more efficient than that of methanol and thus needs less raw material. Using biogas as raw material, DME yield in energy terms is 70 per cent, and using biomass 55-60 per cent. The possible by-product is hot water for district heating. Cost of DME with bio raw material is SEK 0.07/litre lower than that of methanol. Distribution of pressurised DME is at least SEK 0.40/litre more expensive than that of diesel. This extra cost outweighs the lower production cost. Owing to its good ignition properties DME is excellent for diesel engines adapted for DME. Emission indications are favourable. The report "DME-Infrastruktur och distribution: teknik, saekerhet och kostnader" by Karl Laehdemaeki is enclosed as appendix.

  • Availability:
  • Corporate Authors:

    KOMMUNIKATIONSFORSKNINGSBEREDNINGEN

    BOX 5706
    STOCKHOLM,   Sweden  S-114 97
  • Authors:
    • LINDHOLM, M
    • BRANDBERG, A A
    • SAEVMARK, B
    • LANDAELV, I
  • Publication Date: 1997

Language

  • Swedish

Media Info

  • Features: References;
  • Pagination: 28p+a p.
  • Serial:
    • KFB-MEDDELANDE
    • Issue Number: 1997:30
    • Publisher: KOMMUNIKATIONSFORSKNINGSBEREDNINGEN
    • ISSN: 1401-1271

Subject/Index Terms

Filing Info

  • Accession Number: 00793531
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Files: ITRD
  • Created Date: Jun 15 2000 12:00AM