Release Time:2022-06-21  Hits:

Date of Publication: 2009-01-01

Journal: 过程工程学报

Issue: 5

Page Number: 947-952

ISSN: 1009-606X

Abstract: The continuous bioconversion of glycerol into 1, 3-propanediol was analyzed via modeling and optimizing the fermentation and separation process. The highest concentrations, productivities and yields of 1, 3-propanediol under various operational conditions were calculated, coupling with the economic evaluation of the cost of energy and materials. The results indicated that the increase in the productivity would not simultaneously bring more profits, but the opposite, the increase in the yield of 1, 3-propanediol to glycerol would bring growth to the profit, but this growth became slow once the yield was higher than 0.68 mol/mol. The economic sensitivity showed that the cost of glycerol was the key factor influencing the profit. Through applying the integrated production of biodiesel and 1, 3-propanediol, the cost of glycerol could be saved while the retained profit was increased by 31%.

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