Gas analysis in gasification of biomass and waste

Sep 2018

One of the main technical challenges associated to the deployment of biomass gasification as a commercial technology is the cleaning and upgrading of the product gas. The contaminants of product gas from biomass/waste gasification include dust, tars, alkali metals, BTX, sulphur-, nitrogen- and chlorine compounds, and heavy metals. Proper measurement of the components and contaminants of the product gas is essential for the monitoring of gasification-based plants (efficiency, product quality, by-products), as well as for the proper design of the downstream gas cleaning train (for example, scrubbers, sorbents, etc.). The deployment and implementation of inexpensive yet accurate gas analysis techniques to monitor the fate of gas contaminants might play an important role in the commercialization of biomass and waste gasification processes.

This report, commissioned by IEA Bioenergy Task 33, compiles a representative part of the extensive work developed in recent years by relevant actors in the field of gas analysis applied to (biomass and waste) gasification. The report is composed of 2 complementary documents. Document 1 describes the available analysis techniques (both commercial and under development) for the measurement of different compounds of interest present in gasification gas. This is complemented with a book of factsheets on gas analysis techniques in Document 2.