| Project/Area Number |
08555190
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
反応・分離工学
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| Research Institution | OSAKA UNIVERSITY |
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Principal Investigator |
TONE Setsuji OSAKA.UNIV., DEPT.OF CHEM.SCI.ENG., PROFESSOR, 大学院・基礎工学研究科, 教授 (40029418)
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| Co-Investigator(Kenkyū-buntansha) |
NAKATSUKA Syuji DAICEL CHEMICAL INDUSTRIES LTD., RESEARCHER, 研究員
MASAWAKI Teruyuki OSAKA.UNIV., DEPT.OF CHEM.SCI.ENG., ASSOCIATE PROFESSOR, 大学院・基礎工学研究科, 助教授 (10209421)
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| Project Period (FY) |
1996 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1997: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1996: ¥6,100,000 (Direct Cost: ¥6,100,000)
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| Keywords | Membrane separation / Pervaporation / DMC / TAME / MTBE / Process simulation / Methanol / Organic-inorganic hybrid membrane / 有機・無機ハイブリッド換 / ポリジメチルシロキサン / ポリイオンコンプレックス膜 |
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| Research Abstract |
The octane-enhancers such as Dimethyl carbonate (DMC), t-Amyl methyl ether (TAME) and Methyl-t-butyl ether (MTBE) have attracted much attention in recent years as a potential gasoline additive. These octane-enhancers are produced by essentially the reaction with methanol (MeOH) over an acidic catalyst. As the reaction is reversible, it is required to separate unreacted MeOH from the product solution for recycling to the reactor. However, MeOH forms an azeotrope with these octane-enhancers, which is difficult to separate by distilllation.As one promising separation technology from view of energy-saving point, pervaporation using hydrophilic membranes have been applied to preferentially permeate MeOH from MeOH-organic mixtures.
In pervaporation of water-alcohol mixtures, the hydrolyzed polyacrylonitrile and polyion complex membranes, which are hydrophilic membranes were found to provide with high flux and emhanced separation factor. These membranes was also effective for the separation of MeOH from the azeotropic MeOH-DMC or TAME mixture. From the father investigation, the organic-inorganic hybrid membrane was useful to the separation of MeOH-MTBE mixture.
Moreover, the energy efficiency was evaluated by using simulator and the process with membrane separation was found to be available for the production of MTBE.
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