Carbon Monoxide Fine Clean-Up in Plate Heat-Exchanger Reactors

Carbon Monoxide Fine Clean-Up in Plate Heat-Exchanger Reactors 

Dudfield et al. performed investigations of compact aluminium fin heat-exchanger reactors for the preferential oxidation of carbon monoxide [549]. The reactors had the dimensions of 46-mm height, 56-mm width and 170-mm length, which corresponded to a 0.44-L volume and 590-g weight. They contained 2 g of catalyst each [328]. Platinum/ruthenium catalyst formulations of various composition were incorporated into different reactors and tested. Reformate surrogate with a 

At 160 °C reaction temperature, the carbon monoxide concentration found in the reformate was 11 ppm. It became obvious that not only the carbon monoxide, but also the methanol contained in the feed was completely oxidised under the reaction conditions. The conversion decreased from 99.8 to 85%, when the feed flow rate was increased from 24.3 to 150 Lmin [549].Thelattercorrespondstoa very high weight hourly space velocity of 4500 L (hgcat) - At a flow rate of 100 Lmin and 160 °C reaction temperature, the exit concentration of carbon monoxide was maintained at 

To meet the requirements of the 20-kW fuel processor, which was the overall aim of the investigations, the reactor design described above was scaled up to a dual stage design of total volume 4 L. Each reactor was now 108-mm high, 108-mm wide and 

The reactors were operated at full load (20 kW equivalent power output) for approximately 100 h without deactivation [328]. 

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