Fuel Consumption Improvement by Engine EGR Reforming with Ethanol-Blended Gasoline Steam Reforming

Engine EGR reforming was examined with a goal of improving the fuel consumption of engines burning ethanol-blended gasoline. The catalyst carriers of Rh catalyst were examined and optimized by using a flow reactor. The improved “carrier of ceria” is the most suitable. And engine EGR reforming was examined by an experimental engine. With pure ethanol, engine EGR reforming was possible at lower temperature compared with gasoline, and the fuel consumption was improved. With E85, the hydrogen in reforming gas was increased with the optimized catalyst.エタノール混合ガソリンについて、燃費改善を目指してエンジンEGR改質を検討している。エタノールは、比較的低い温度で改質可能で、EGR導入量が増加でき燃費改善に繋がることをエンジン実験で明らかにした。さらにテストピース評価で改良触媒を見出し、E85燃料でエンジン実機評価し水素生成濃度が高いことを確認した。