Studies on Sodium Lignosulfonate Depolymerization Over Al2O3 Supported Catalysts Loaded with Metals and Metal Oxides in a Continuous Flow Reactor

详细信息    查看全文

• 作者：Jan Horá?ek (1)
  Jyri-Pekka Mikkola (2) (3)
  Ajajkumar Samikannu (2)
  Gabriela ?t’ávová (1)
  William Larsson (2)
  Luká? Hora (1)
  David Kubi?ka (1)
  
• 关键词：Lignosulfonate ; Methoxyphenols ; Continuous flow reactor ; Biomass valorization
• 刊名：Topics in Catalysis
• 出版年：2013
• 出版时间：June 2013
• 年：2013
• 卷：56
• 期：9-10
• 页码：794-799
• 全文大小：430KB
• 参考文献：1. Padney M, Kim C (2011) Chem Eng Technol 34:29-1 CrossRef
  2. Bridgwater A (2003) Chem Eng J 91:87-02 CrossRef
  3. Mohan D, Pittman Jr, Steele P (2006) Energy Fuels 20:848-49 CrossRef
  4. Caballero J, Font R, Marcilla A, Garcia A (2008) J Anal Appl Pyrolysis 82:170-77 CrossRef
  5. Caballero J, Font R, Marcilla A (1996) J Anal Appl Pyrolysis 36:159-78 CrossRef
  6. Mullen C, Boateng A (2010) Fuel Process Technol 91:1446-458 CrossRef
  7. Nowakowski D, Bridgwater A, Elliott D, meier D, de Wild P (2010) J Anal Appl Pyrolysis 88:53-2 CrossRef
  8. Shen DK, Gu S, Luo KH, Wang SR, Fang MX (2010) Bioresour Technol 101:6136-146 CrossRef
  9. De Wild P, Van der Laan R, Kloekhorst A, Heeres E (2009) Environ Prog Sustain Energy 28:461-69 CrossRef
  10. Meier D, Faix O (1999) Bioresour Technol 68:71-7 CrossRef
  11. Meier D, Ante R, Faix O (1992) Bioresour Technol 40:171-77 CrossRef
  12. Meier D, Berns J, Faix O, Balfanz U, Baldauf W (1994) Biomass Bioenergy 7:99-05 CrossRef
  13. Horá?ek J, Homola F, Kubi?ková I, Kubi?ka D (2012) Catal Today 179:191-98 CrossRef
  14. Brunauer S, Emmet PH, Teller E (1938) J Am Chem Soc 60(2):309-19 CrossRef
  15. Dierichs A, Kubi?ka R (1956) Phenols and bases from coal. SNTL, Praha, pp 224-59
  16. Kochloefl K, Ba?ant V (1968) J Catal 10:140-48 CrossRef
  17. Leclercq G, Leclercq L, Bouleau LM, Pietrzyk S, Maurel R (1984) J Catal 88:8-7 CrossRef
  18. Lebo SE Jr, Gargulak JD, McNally TJ (2001) Kirk-Othmer encyclopedia of chemical technology. Wiley, New York. ISBN 0-471-23896-1
  
• 作者单位：Jan Horá?ek (1)
  Jyri-Pekka Mikkola (2) (3)
  Ajajkumar Samikannu (2)
  Gabriela ?t’ávová (1)
  William Larsson (2)
  Luká? Hora (1)
  David Kubi?ka (1)
  
  1. Research Institute of Inorganic Chemistry, RENTECH-UniCRE, Chempark Litvínov, Zálu?í, 436 70, Litvinov, Czech Republic
  2. Technical Chemistry, Department of Chemistry, Chemical-Biological Centre, Ume? University, 901 87, Ume?, Sweden
  3. Industrial Chemistry & Reaction Engineering, Process Chemistry Centre, ?bo Akademi University, 20500, ?bo-Turku, Finland
  
• ISSN：1572-9028

文摘

The aim of this work was to study the how various heterogeneous catalysts perform upon lignosulfonate decomposition reactions. The main target of the study was to obtain extractable phenolic compounds as potential renewable chemicals for the production of fuel components and chemicals. The nature of the heterogeneous catalyst was found to have a great impact on the obtained product yields and the composition of the product mixture. Initially, a nickel–tungsten on alumina (NiW/Al2O3) reference catalyst was applied upon screening the influence of catalyst particle size and various reaction parameters. Significantly increasing product yields with decreasing catalyst particle size indicated that the lignosulfonate transformation takes place on the external catalyst surface due to large macromolecular structure of the feedstock. The contact time (space time velocity) and catalyst particle size were the most important factors influencing the selectivity profiles towards various products as well as the yields observed. The highest conversion to phenolics was obtained over in-house-prepared NiO/Al2O3 and NiMo/Al2O3 catalysts with various NiO and MoO3 loadings.