Biological production of ethanol from coal synthesis gas |
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Authors: | Phillips J R Klasson K T Clausen E C Gaddy J L |
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Institution: | 1.Department of Chemical Engineering, University of Arkansas, 72701, Fayetteville, AR ;2.Oak Ridge National Laboratory, 37831, Oak Ridge, TN ; |
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Abstract: | The anaerobic bacteriaClostridium ljungdahlii produces ethanol and acetate from CO, CO2, and H2 in synthesis gas. Early studies with the bacterium showed that relatively high concentrations of ethanol could be produced
by lowering the fermentation pH and eliminating yeast extract from the medium in favor of a defined medium. This article presents
the results from a medium development study based on the aerobic bacteriumEscherichia coli. The results of continuous-reactor studies in a continuously stirred tank reactor (CSTR) with and without cell recycle are
shown to demonstrate the utility of this improved medium. |
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Keywords: | Index Entries" target="_blank">Index Entries C ljungdahlii ethanol acetate synthesis gas carbon monoxide hydrogen |
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