Study of gaseous substrate fermentations: carbon monoxide conversion to acetate. 2. Continuous culture |
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Authors: | Vega J L Antorrena G M Clausen E C Gaddy J L |
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Institution: | Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701. |
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Abstract: | The fermentation of gaseous substrates such as CO, H(2), and CO(2) may be performed in a continuous stirred tank reactor, as well as the traditional batch reactor. In this article, the conversion of carbon monoxide by Peptostreptococcus productus is demonstrated in a stirred tank reactor under both mass transfer-controlled and nonmass transfer-controlled conditions. Utilizing a non-steady-state procedure, intrinsic rates are evaluated under non-mass transfer-controlled conditions in a time period of only 5-6 hours. A steady-state procedure was used to evaluate CSTR performance under mass transfer-controlled conditions. The mass transfer coefficient was calculated, followed by the development of a model to predict CSTR behavior for this gas phase substrate. |
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