|Titolo||Hydrogen from the high temperature water gas shift reaction with an industrial Fe/Cr catalyst using biomass gasification tar rich synthesis gas|
|Tipo di pubblicazione||Articolo su Rivista peer-reviewed|
|Anno di Pubblicazione||2015|
|Autori||Chianese, S., Loipersböck J., Malits M., Rauch R., Hofbauer H., Molino Antonio, and Musmarra D.|
|Rivista||Fuel Processing Technology|
|Parole chiave||Biomass, Biomass Gasification, Biomass tar, Catalyst deactivation, Catalyst poisoning, Catalysts, Chemical reactors, Chemical shift, Fischer-Tropsch synthesis, Fixed bed reactor, Gases, High temperature water gas shift reactions, Hydrogen production, Industrial catalyst, Pilot scale plants, sulfur, Sulfur poisoning, Synthesis (chemical), Synthesis gas, Tar, Water gas shift, Water gas shift (WGS) reaction|
The high temperature water gas shift reaction (HTS) over an iron/chromium (Fe/Cr) industrial catalyst was investigated in a pilot scale plant consisting of two fixed-bed reactors arranged in series and a biomass-derived tar-rich synthesis gas was used as a feed-stream. CO conversion and selectivity for the water gas shift reaction were evaluated through parameter variation. Four dry gas hourly space velocities (GHSVd) and two steam to dry synthesis gas ratios (H2O/SGd) equal to 52% v/v and 60% v/v were investigated at temperatures (T) of 350-450 °C. CO conversion was investigated by varying H2S concentration 180-540 ppmv (dry basis) at a temperature of 425 °C, considering two GHSVd. The highest CO conversion ( 83%) was observed in the basis case at 60% v/v H2O/SGd, and 450 °C. The catalyst appeared to be resistant to sulfur poisoning deactivation, and achieved 48% CO conversion at the maximum H2S concentration used. © 2015 Elsevier B.V.
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