Development of sampling and analytical procedures for biomass gasifiers

A design of a sampling train suitable for the analysis of raw producer gas from biomass gasifiers is presented. The sampler was designed to allow sampling of gas streams at a wide range of temperatures and tar concentrations and to facilitate the separation of gases, particulate, tar and aqueous fractions. The procedure for the collection, separation and analysis was evaluated on the results obtained from the biomass fluidized bed gasifier located at B.C. Research, Vancouver, B.C. On presente la conception d'un echantillonneur special pour l'analyse des gaz provenant d'un gazogene a biomasse. On l'a concu pour l'echantillonnage de debits gazeux sur une large gamme de temperatures et de concentrations de goudron, tout en facilitant la separation du gaz, des macroparticules, du goudron et des fractions aqueuses. On a evalue la procedure de collection, separation et analyse, a l'aide des resultats obtenus dans le gazogene de biomasse en lit fluidise, situe au B.C. Research Council, Vancouver, B.C.