In Situ Conditioning of CO2-Rich Syngas during the Synthesis of Methanol

In Situ Conditioning of CO2-Rich Syngas during the Synthesis of Methanol

Peinado, C.
Liuzzi, D.
Sanchis, A.
Pascual, L.
Peña, M.A.
Boon, J.
Rojas, S.

2021

The synthesis of methanol from biomass-derived syngas can be challenging because of the high CO2 content in the bio-syngas, resulting in lower kinetics and higher catalyst deactivation. This work explores the in situ pre-treatment of a CO2-rich syngas with a CO2/CO ratio equal to 1.9 through the reverse-water gas shift reaction with the aim of adjusting this ratio to a more favorable one for the synthesis of methanol with Cu-based catalysts. Both reactions take place in two catalytic beds placed in the same reactor, thus intensifying the methanol process. The water produced during syngas conditioning is removed by means of a sorbent zeolite to prevent the methanol catalyst deactivation and to shift the equilibrium towards the methanol formation. The combination of the CO2 shifting and the water sorption strategies lead to higher productivities of the catalytic bed and, under certain reaction conditions, to higher methanol productions. https://www.mdpi.com/2073-4344/11/5/534

Methanol
WGS
CO2-rich syngas
H2O sorption
CZA catalysts
Sustainable Energy
Energy

http://resolver.tudelft.nl/uuid:51051ee7-3d88-4274-92aa-63dd702cae4a

https://doi.org/10.3390/catal11050534

955982

MDPI, London, UK

Catalysts, 11 (11)

article