Lowering the Fuel Requirement During Active Regeneration of Soot Filters

Lead Research Organisation: Cardiff University
Department Name: Chemistry

Abstract

The control of exhaust emissions from vehicles with internal combustion engines is of vital importance. In particular, the emissions of carbon monoxide, volatile organic compounds, nitrogen oxides and particulates have to be controlled, and ideally eliminated totally. Catalysis has a critical role in controlling vehicle emissions, and currently catalytic technology is employed on gasoline and diesel fuelled vehicles. Although the catalysts employed are efficient the permitted emission levels of pollutants are continually being reviewed, and ever stricter emission targets are regularly introduced. In order to meet these targets improvements in engine combustion technology are important, however, in parallel improvements in catalyst performance are also required.

This project is in collaboration with Jaguar Land Rover, and it will focus on understanding removal of soot particulates from vehicle exhaust streams. Current technology does not use a catalyst to control particulate emissions, and there are potential advantages of introducing a catalyst to oxidise soot particulates. The introduction of a catalyst has the potential to reduce particulate emissions and also reduce fuel consumption in the drive cycle. For effective deployment, robust and active catalysts need to be identified and their fundamental mode of operation needs to be understood, so that more efficient catalysts can be developed with scientific rationale.

Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/R512503/1 01/10/2017 30/09/2021
1937620 Studentship EP/R512503/1 01/10/2017 31/12/2021 Anna Elizabeth Cooper
 
Description Investigating a catalyst to simultaneously remove NOx and particulate matter from diesel exhaust gas. Have found that the addition of potassium to a known catalyst (Ag/CZA) for this reaction enhances soot oxidation but hinders the NOx reduction. The catalyst can utilize N2O ( a by-product from reactions) to oxidise soot at low temperatures - this is a fairly novel finding.
Exploitation Route The research may be used by others in the field to continue to develop and research a catalyst for the simultaneous removal of NOx and soot from diesel exhausts.
Sectors Environment,Transport

URL https://www.mdpi.com/2073-4344/10/3/294