A SEMI-QUANTITATIVE ANALYSIS FOR EVALUATING THE SUSTAINABLE GREEN HYDROGEN PRODUCTION BY BIOMASS GASIFICATION

Abstract

One of the goals that mankind has set for 2050 is decarbonization in the energy sector. For that reason, the use of hydrogen as an alternative fuel looks like a possible solution. However, the conventional hydrogen production process (electrolysis) now indirectly accounts for more than 2% of total global CO2 emissions. One of the scenarios to reaching set targets involves the decarbonization of hydrogen production, resulting in green hydrogen. The one of the pathways for production of green hydrogen is feasible within the gasification of lignocellulosic materials (biomass feedstock) into syngas. However, different feedstock parameters have an impact on the thermochemical conversion process i.e. syngas yield and composition. This paper presents the novel semi-quantitative analysis of fundamental experimental data obtained by thermogravimetry and mass spectrometry. According to the proposed methodology on the lab-scale level is possible to evaluate the feedstock quality for identification of syngas yield and composition, with special attention to the hydrogen content in the syngas. The experimental results for two biomass samples were presented and based on performed semiquantitative analysis the evaluating of the possibilities for using considered feedstocks for green hydrogen production was done. Further discussions and comparisons with literature data were also presented.