Bench scale demonstration of the Supermethanol concept: The synthesis of methanol from glycerol derived syngas

J. G. van Bennekom, R. H. Venderbosch*, D. Assink, K. P. J. Lemmens, H. J. Heeres

*Corresponding author voor dit werk

OnderzoeksoutputAcademicpeer review

22 Citaten (Scopus)

Samenvatting

An integrated process for the synthesis of methanol from aqueous glycerol involving reforming of the feed to syngas followed by methanol synthesis is successfully demonstrated in a continuous bench scale unit. Glycerol reforming was carried out at pressures of 24-27 MPa and temperatures of 948-998 K with a throughput of approximately 1 kg aqueous feed/h (3-10 wt.% glycerol) leading to high glycerol conversions of (95.0-99.9%) and syngas with a composition range of H-2/CO/CO2/CxHy = 44-67/1-21/16-34/2-18 vol.%. The effluent water of the process was recycled at high pressure, reducing the water consumption of the process significantly. Subsequent syngas conversion to methanol was carried out in a packed bed reactor at temperatures between 468 and 518 K and pressures between 24 and 27 MPa using a commercial methanol catalyst (Cu/ZnO/Al2O3). The maximum yield of methanol based on glycerol intake was 0.62 kg methanol/kg glycerol for an experiment with a time on stream of 16 h, which corresponds to a carbon conversion (carbon in methanol over carbon in glycerol) of 60%. This value is close to the maximum theoretical yield of 78% based on stoichiometric considerations. (C) 2012 Elsevier B.V. All rights reserved.

Originele taal-2English
Pagina's (van-tot)245-253
Aantal pagina's9
TijdschriftChemical Engineering Journal
Volume207
Nummer van het tijdschrift1
DOI's
StatusPublished - 1-okt.-2012
Evenement22nd International Symposium on Chemical Reaction Engineering (ISCRE) - , Netherlands
Duur: 2-sep.-20125-sep.-2012

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