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

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.

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 Creators:
Dreyer, Bradon J.1, 2, Author
Dauenhauer, Paul J.1, 3, Author
Horn, Raimund1, 4, Author              
Schmidt, Lenny D.1, Author
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1Department of Chemical Engineering and Materials Science, UniVersity of Minnesota, 421 Washington AVenue SE, Minneapolis, Minnesota 55455, ou_persistent22              
2The Dow Chemical Company, ou_persistent22              
3University of Massachusetts, ou_persistent22              
4Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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 Abstract: 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.

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Language(s): eng - English
 Dates: 2010-01-112010-02-17
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/ie9013452
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Title: Industrial and Engineering Chemistry Research
Source Genre: Journal
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Publ. Info: Washington, D.C : American Chemical Society
Pages: - Volume / Issue: 49 (10) Sequence Number: - Start / End Page: 1611 - 1624 Identifier: ISSN: 0888-5885
CoNE: https://pure.mpg.de/cone/journals/resource/954928546246