What about the development of catalytic after-treatment processes as part of the transition from vehicles powered by liquid fuels to gaseous fuels

Abstract

More stringent regulations on air pollutant emissions from engines fuelled by diesel and gasoline inevitably raise the question of the future of this type of motorization. Indeed, significant additional economic efforts by car manufacturers would be needed for compliant, that could be detrimental for their competitiveness. The promising alternatives are associated to the generalization of electric motorization. However, it will not be effective in the short and medium term. An intermediate scenario lies in the development of internal combustion engines powered by less harmful gaseous fuels towards environment. This review examines the different schemes and scenarios associated to this transition regarding the necessary adaptations on the existing catalytic after-treatment technologies.