Gasoline formulation consists hydrocarbons of various molecular structure which have differing combustion properties as well as chemistries that are functionalised to clean and reduce friction in the engine. Ability to screen and interpret fuel combustion, deposit control and friction characteristics allows tailor-made formulation for greater fuel economy. This effort is in line with climate change regulations which apply to both everyday road and race track applications. The hydrocarbon composition which can be selected for combustion performance includes paraffins, olefins, naphtenes, isoparaffins, isoolefins, aromatics and oxygenates. Functionalised chemistries which cleans and protects include amine reactive compounds with hydrophobic backbone and hydrophilic head. Chemistries with functional groups which reduces friction include amine and carbonyl compounds. Gasoline combustion efficiency can be evaluated by understanding ignition time, mass fraction burned and knock limit which can be used to derive flame speed. The effectiveness of deposit control can be evaluated by understanding deposit nature, impingement pattern and boundary thickness which can be simulated on an isothermal bench test. The reduction of friction can be evaluated by understanding friction coefficient, at various speed and load which can be screened on a tribology rig. This paper will discuss and share the understandings as following: - Primary and greatest fuel efficiency benefit can be achieved by ordering hydrocarbon composition groups according to molecular structure through understanding combustion efficiency on high performance engines. - Secondary fuel efficiency benefit can be achieved by best deposit control chemistries in cleaning up modern road vehicles. - Tertiary fuel efficiency benefits can be achieved by effective friction reduction chemistries as an instantaneous benefit in road vehicles

Tailoring hydrocarbon composition and functional groups for fuel efficiency

255th National Meeting (2018)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.