Performance of a water gas shift unit processing tar-rich product gas from a commercial biomass steam gasification plant operating at partial load
by Michael Kraussler; Matthias Binder; Hermann Hofbauer
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 14, No. 1/2, 2017

Abstract: In this paper, the performance of a water gas shift unit processing product gas from a commercial dual fluidised bed biomass steam gasification plant is studied. The experiments were carried out during a partial load operation of the gasification plant. In order to investigate a water gas shift process, a water gas shift unit, located at the site of the gasification plant in Oberwart, Austria, was used. The water gas shift unit consisted of three reactors in series filled with a commercial Fe'Cr-based catalyst and was operated with tar-rich product gas. No performance decrease of the water gas shift unit was observed during the partial load operation of the gasification plant. Furthermore, a CO conversion of 92% and a GCMS tar reduction of about 30% were reached. In addition, it was found that partial load operation of the gasification plant did not negatively affect the performance of the water gas shift unit. [Received: December 23, 2015; Accepted: April 24, 2016]

Online publication date: Wed, 21-Dec-2016

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