For the reaction of partial oxidation and dry reforming of methane in diluted feeds, catalytic activity correlates both with Pt dispersion and oxygen mobility.
On the other hand, the maximum reaction temperature in the reaction chamber can be increased if the upper part of the reaction chamber is made with a non-porous material, which is favourable for treating diluted feeds.
A key result is that, when processing a fixed volume of suspension, dilute feed followed by concentrated feed leads to faster overall filtration than the reverse case.
Distillation of dilute feeds is intrinsically hindered by a low internal efficiency and solvent based separations should be considered.
When using diluted CO2 feeds for the electrolyzer, we still observed high Faradaic efficiencies for CO (>80%), high conversion ratios (up to 32% per pass), and partial current densities for CO of 29 mA/cm2 when operating the cell at 3.0 V.
It is shown through both experiments and modeling that for a fixed ratio of the moles of NO H2 fed per cycle, a longer diluted rich feed for fixed lean time and a shorter overall cycle is beneficial in terms of NOx conversion for both 3% and 8% dispersion catalysts.
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