Kraftstoffe für morgen

This contribution presents an overview over the use of ammonia as a fuel for internal combustion engines either as pure substance or in combination with ignition promotors. The concept of a two-component fuel mixture system consisting of ammonia and an organic solvent for storage of ammonia and as combustion enhancer is developed. Requirements toward a solvent for its use in an ammonia/solvent fuel system in internal combustion engines are summarized. Employing the quantum chemical COSMO-RS theory, a broad variety of hydrocarbons with different functional groups and carbon chain lengths as well as solvents already reported as alternative fuels in the literature are systematically screened. The resulting candidates are rated in a multicriterial approach, accounting for physical properties and phase equilibrium behavior, combustion characteristics, as well as operational properties.

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“…Ammonia is a good solvent for many hydrocarbons . Also, gases could be stored in liquid ammonia in large quantities.…”

Section: Introductionmentioning

confidence: 99%

“…Low requirements on the engine system are desirable also like clean combustion with minimum raw emissions and no harmful effects on the exhaust catalyst. Other important properties are the ignitability (characterized by the cetane number) and the knock resistance (characterized by the octane number) …”

Section: Introductionmentioning

confidence: 99%