Paper details

Title:

Analysis of Bio-CO2 Streams for Methanol Synthesis

Author(s):

Kraia, T., Koliamitra, E., Mitrousis, V., Kardaras, G., Lazaridou, N., Grekou, T., Fotiadis, K., Asimakopoulou, A., Koutsonikolas, D., Karagiannakis, G., Bampaou, M., Panopoulos, K.D.

Document(s):

Abstract:

Bio-CO2 streams in conjunction with renewable hydrogen present a promising pathway for the production of maritime methanol. However, impurities present in those streams might affect the catalyst employed in the methanol synthesis process. This study aims to characterize the impurity profiles of biogenic CO2 from biogas plants to develop a targeted pre-treatment strategy enabling its potential use in methanol synthesis. To this end, sampling campaigns were conducted at actual biogas plants, which present a promising bio-CO2 source, whereas a membrane gas absorption unit was deployed to capture and purify to a certain extent the bio-CO2 stream. The composition of bio-CO2 feedstocks is evaluated, as contaminants can lead to pipeline corrosion during transportation and cause catalyst deactivation through poisoning. Results showed effective capture efficiency and significant impurity reductions, whereas chloride compounds identified as the primary residual contaminant requiring downstream treatment before the synthesis process.

Keywords:

CO₂ capture, methanol, campaigns, DEA, impurities, marine fuels, bio-CO₂

Topic:

Biomass Conversion to Intermediate Bioenergy Carriers and Sustainable Biofuels

Subtopic:

Biofuels and synthetic fuels from biomass and hydrogen

Event:

33rd European Biomass Conference and Exhibition

Session:

5BV.6.22

Pages:

993 - 998

ISBN:

978-88-89407-25-7

Paper DOI:

10.5071/33rdEUBCE2025-5BV.6.22

Price:

FREE