Enhanced Olefin Production from Renewable Aliphatic Feedstocks and Co-Fed 
Lignin Derivatives Using Experimental Surrogates by Millisecond Catalytic 
Partial Oxidation

Dreyer, Bradon J.; Dauenhauer, Paul J.; Horn, Raimund; Schmidt, Lenny D.

doi:10.1021/ie9013452

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Enhanced Olefin Production from Renewable Aliphatic Feedstocks and Co-Fed Lignin Derivatives Using Experimental Surrogates by Millisecond Catalytic Partial Oxidation

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Horn, Raimund
Department of Chemical Engineering and Materials Science, UniVersity of Minnesota;
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Zitation

Dreyer, B. J., Dauenhauer, P. J., Horn, R., & Schmidt, L. D. (2010). Enhanced Olefin Production from Renewable Aliphatic Feedstocks and Co-Fed Lignin Derivatives Using Experimental Surrogates by Millisecond Catalytic Partial Oxidation. Industrial and Engineering Chemistry Research, 49(10), 1611-1624. doi:10.1021/ie9013452.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0012-0E76-F

Zusammenfassung

To investigate the effect of co-fed lignin derivatives on olefin production in the catalytic partial oxidation of aliphatic feedstocks, benzene was selected as a lignin surrogate and n-hexane was selected as a renewable oil surrogate. Aromatic benzene and aliphatic n-hexane, along with the corresponding 80:20 and 50:50 molar n-hexane/benzene mixtures, were partially oxidized in millisecond contact time reactors, varying the fuel to oxygen ratio (0.8 < C/O < 2.0), the catalyst (5 wt % Pt or Rh), the support (45 or 80 pores per linear inch α-Al2O3) while maintaining constant space time (GHSV=105 h−1). The experiments indicate that the addition of benzene likely results in competitive catalytic adsorption which reduces the catalytic oxidation of n-hexane and increases production of olefins by homogeneous cracking. Under optimal conditions, selectivity to ethylene and propylene from n-hexane was increased from 35% using pure n-hexane to 65% when using a 50:50 molar mixture of benzene and n-hexane. Results indicate that the addition of lignin-derived aromatic species should increase production of olefins from catalytically reformed renewable oils.