Carbon dioxide-sustained adsorption of lactic acid at pH > pK{sub a} of the acid

Journal Article · Thu Apr 01 00:00:00 EST 1999 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie980428v· OSTI ID:345357

Husson, S M; King, C J ^[1]

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1. Lawrence Berkeley National Lab., CA (United States)

Experimental data are presented for batch and fixed-bed adsorption of lactic acid from aqueous sodium lactate solutions onto the tertiary amine sorbents, Dowex MWA-1 and Amberlite IRA-35, in the presence of carbon dioxide. The effects of carbon dioxide pressure and sodium lactate concentration on lactate uptake capacity were measured. A simple complexation model, which includes chemical-equilibria and mass- and charge-balance equations, was developed to describe the system. There are no fitted parameters in the model. The model predictions compare well with batch adsorption data.

• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 345357
• Journal Information: Industrial and Engineering Chemistry Research, Vol. 38, Issue 4; Other Information: PBD: Apr 1999
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
LACTIC ACID
ADSORPTION
ADSORBENTS
PERFORMANCE
CARBON DIOXIDE
PRESSURE DEPENDENCE
MATHEMATICAL MODELS
FERMENTATION