G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 33/00 (2006.01) G01N 5/02 (2006.01)
Patent
CA 2672020
The measurement is carried out by means of thermogravimetry scales (10) including at on one end of a beam (20) a catalyst body (30) of a coking reaction of the tars at the gaseous state. Precautions are taken to maintain a homogeneous and regular gas flow of the sampled gas and to ensure that the catalyst reaction takes place primarily on the catalytic body (30), the additional weight of which is equal to the weight of deposited coke, and, indirectly, the tar content at the gaseous state in the measured gas. A colorimetric or analysis device (34) of the gas from the tar coking gives an additional and/or supplementary measure. The solid tar is first filtered, but the content can be measured by an auxiliary device. Possible application to analysis of gases from a biomass.
La mesure est faite au moyen d'une balance (10) de thermogravimétrie portant à une extrémité du fléau (20) un corps (30) catalyseur d'une réaction de cokage des goudrons présents à l'état gazeux. Des précautions sont prises pour assurer l'homogénéité et la régularité du débit du gaz prélevé et garantir une catalyse prépondérante sur le corps catalytique (30) dont l'alourdissement donne le poids du coke déposé, et, indirectement, la teneur en goudrons présents à l'état gazeux dans le gaz à mesurer. Un dispositif de colorimétrie (34) ou d'analyse des gaz issus du cokage des goudrons fournit une mesure complémentaire et/ou supplémentaire. Les goudrons solides sont filtrés auparavant, mais leur teneur peut être mesurée par un dispositif auxiliaire. Application possible à l'analyse des gaz issus de la biomasse.
Brothier Meryl
Estubier Pierre
Soyez Johann
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