TY  - JOUR
AU  - Pasel, Joachim
AU  - Samsun, Remzi Can
AU  - Tschauder, Andreas
AU  - Peters, Ralf
AU  - Stolten, Detlef
TI  - Water-gas Shift Reactor for Fuel Cell Systems: Stable Operation for 5000 Hours
JO  - International journal of hydrogen energy
VL  - 43
IS  - 41
SN  - 0360-3199
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2018-02618
SP  - 19222 - 19230
PY  - 2018
AB  - The water-gas shift reactor in the fuel processing unit of a fuel cell system has the vital function of reducing the concentration of CO in the reforming reactor's product gas to values of between 1.0 and 1.5 vol% in order to protect the anodic catalyst from becoming irreversibly poisoned. This paper presents Jülich's recent development in this field, specifically the WGS 6 in the 5 kWe class. The WGS 6 is characterized by a fundamentally new concept for arranging high temperature and low temperature shift stages. Both stages are now coaxially integrated in one joint casing to provide higher values for the power density and specific power, whereas in earlier reactor generations, these stages are arranged in two separate, parallel housings. In addition, this contribution presents results from a long-term experiment for 5000 h on stream with WGS 6 and discusses the temporal trends of the product gas composition and reactor temperatures across this timespan. For this experiment, the inlet gas stream is produced by an autothermal reformer, which is installed upstream of the WGS 6.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000447482900047
DO  - DOI:10.1016/j.ijhydene.2018.08.125
UR  - https://juser.fz-juelich.de/record/845344
ER  -