Ceo2 Based Catalysts for the Treatment of Propylene in Motorcycle’s Exhaust Gases

Ceo2 Based Catalysts for the Treatment of Propylene in Motorcycle’s Exhaust Gases

In this work, the catalytic activities of several single metallic oxides were studied for the treatment of propylene, a component in motorcycles' exhaust gases, under oxygen deficient conditions. Amongst them, CeO₂ is one of the materials that exhibit the highest activity for the oxidation of C₃H₆. Therefore, several mixtures of CeO₂ with other oxides (SnO₂, ZrO₂, Co₃O₄) were tested to investig...

study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour

this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

Diesel Exhaust Treatment Using Catalysts/Zeolites

Diesel Exhaust Treatment Using Catalysts/Zeolites-II

Platinum Catalysts for Exhaust Purification

Stringent regulations governing automobile exhaust emissions are due to come into force i n the United States. Johnson Matthey have undertaken the development of platinum-based catalytic reactors for control of these exhaust emissions. Two new types of catalyst have demonstrated the feasibility of exhaust control by catalytic means, nnd have been incorporated on test vehicles to achieve emissio...