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Title page for etd-0214115-151907


URN etd-0214115-151907 Statistics This thesis had been viewed 1066 times. Download 2 times.
Author Zi-kai Huang
Author's Email Address zuca194@yahoo.com.tw
Department Chemical Engineering
Year 2014 Semester 1
Degree Master Type of Document Master's Thesis
Language zh-TW.Big5 Chinese Page Count 83
Title Dehydration of Glycerol with n-Butanol to Produce Oxygenated Fuel over Amberlyst 70 Solid Catalyst
Keyword
  • dehydration reaction
  • Keywords: glycerol
  • cetane number
  • di-n-butyl ether
  • n-butanol
  • n-butanol
  • di-n-butyl ether
  • cetane number
  • Keywords: glycerol
  • dehydration reaction
  • Abstract One-step synthesis of an oxygenated fuel for blending with diesel and the cetane improver di-n-butyl ether (DBE) was performed using glycerol and n-butanol (NB) as raw materials and the solid acid Amberlyst-70 (A-70) as catalyst. In addition to the ether products from the etherification glycerol with NB, dehydration reactions between the NB components as well as the ether products with glycerol were found. The product mixture contained the following identified components: 1-butene (1B), di-n-butyl ether (DBE), 1-sec-butoxybutane (SBOB), mono-n-butoxy glycerol ethers (MBGEs), di-n-butoxy glycerol ethers (DBGEs), the unknown oxygenated hydrocarbons (OHCs) and the unconverted reactants, glycerol and NB. The water contained in the product mixture can be easily removed using a simple Dean-Stark distillation apparatus. The tailored oxygenated fuel contained MBGEs, DBGEs, and OHCs. The by-product DBE can be adopted as a cetane improver of diesel. With a 4:1 molar ratio of NB to glycerol, catalyst/glycerol weight ratios of 10 wt %, a reaction temperature of 473 K at the reaction time of 10 h, the objective of a high conversion of glycerol (93.24 %) and a high yield of MBGEs (20.60 %), DBGEs (14.73 %),and OHCs  were achieved for a once-through operation.
    Advisor Committee
  • Jyh-shyong Chang - advisor
  • Gow-bin Wang - co-chair
  • Yuh-jing Chiou - co-chair
  • Files indicate in-campus access at 2 years and off-campus access at 2 years
    Date of Defense 2014-01-30 Date of Submission 2015-02-16


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