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Article Dans Une Revue Bioprocess and Biosystems Engineering Année : 2014

A simple and rapid one-time method to evaluate the non-acidic gas content from bioprocesses

Résumé

This paper presents a rapid less than 2 min and low-cost method involving the use of alkali solution to capture the acidic gasses from a biogas, thereby providing an estimate of the percentage of non-acidic gasses. Such a method was mentioned in the literature but never fully described or optimized. After sampling an aliquot of gas from bioprocess, gas was injected in a sealed flask with a 3 M NaOH solution, and after equilibrium was obtained, the non-acidic gas volume was measured. The method was first calibrated with certified gasses with an accuracy observed between 98 and 105 %. Regarding the validation step, certified standard gas mixtures and nine biogas-laboratory batch reactors were used, the overall accuracy reported was 103 + 3 %. This rapid and low-cost method may either be used in laboratory conditions as a quick and low cost alternative to standard analysis equipment or in addition as a routine field control method used on full-scale plants.
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Dates et versions

hal-02016042 , version 1 (12-02-2019)

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David Bassard, Laura André, Nicolas Dotal, Ludovic Valentin, Maurice Nonus, et al.. A simple and rapid one-time method to evaluate the non-acidic gas content from bioprocesses. Bioprocess and Biosystems Engineering, 2014, 37 (2), pp.337--341. ⟨10.1007/s00449-013-0986-3⟩. ⟨hal-02016042⟩
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