Deactivation of a Pd/Pt Bimetallic Oxidation Catalyst Used in a Biogas-Powered Euro VI Heavy-Duty Engine Installation
Journal article, 2019

The reduction of anthropogenic greenhouse gas emissions is crucial to avoid further warming of the planet. We investigated how effluent gases from a biogas powered Euro VI heavy-duty engine impact the performance of a bimetallic (palladium and platinum) oxidation catalyst. Using synthetic gas mixtures, the oxidation of NO, CO, and CH4 before and after exposure to biogas exhaust for 900 h was studied. The catalyst lost most of its activity for methane oxidation, and the activity loss was most severe for the inlet part of the aged catalyst. Here, a clear sintering of Pt and Pd was observed, and higher concentrations of catalyst poisons such as sulfur and phosphorus were detected. The sintering and poisoning resulted in less available active sites and hence lower activity for methane oxidation.

engine bench

biogas

methane

emission control

catalyst deactivation

oxidation catalyst

Author

Johanna Englund

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Polymer Technology

Kunpeng Xie

Volvo Group Trucks Technology

Sandra Dahlin

Royal Institute of Technology (KTH)

Andreas Schaefer

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Dazheng Jing

Volvo Group Trucks Technology

Soran Shwan

Volvo Group Trucks Technology

Lennart Andersson

Volvo Group Trucks Technology

Per-Anders Carlsson

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Per-Anders Carlsson Group

Lars J Pettersson

Royal Institute of Technology (KTH)

Magnus Skoglundh

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Polymer Technology

Catalysts

2073-4344 (ISSN)

Vol. 9 12 1014

Subject Categories

Chemical Engineering

Materials Chemistry

DOI

10.3390/catal9121014

More information

Latest update

2/17/2020