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Study on the Hydrogenation and Isomerization Reaction of Dimethylcyclopentadiene  

Jeong, Byung Hun (Agency for Defense Development)
Han, Jeong Sik (Agency for Defense Development)
Lee, Jeong Ho (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology)
Kim, Seong Bo (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology)
Lee, Bum Jae (Department of Fine Chemical Engineering, ChungNam National University)
Publication Information
Korean Chemical Engineering Research / v.43, no.5, 2005 , pp. 566-570 More about this Journal
Abstract
The study on the hydrogenation and isomerization of unsaturated bicyclic hydrcarbon compounds using methylcyclopentadiene dimer (MCPD) was carried out. Exo compound was prepared through isomerization reaction after two hydrogenation reaction steps. In the first hydrogenation reaction which needs one mole of hydrogen, the formation rate of monomer was increased as dimer was decomposed at reaction temperature above $100^{\circ}C$. At first hydrogenation, DHDMCPD [dihydrodi(methylcyclopentadiene)] was formed and second hydrogenation was proceeded to produce THDMCPD [tetrahydrodi(methylcyclopentadiene)], the ratio of exo to endo THDMCPD was varied by the control of 2nd hydrogenation temperature. To improve the process, continuous 1st and 2nd hydrogenation conditions were established by using the 2nd stage heat controllable reactor. Also, catalytic activities were compared by the use of halogenized aluminum, metal halides and solid acids catalysts on the isomerization reaction from endo to exo THDMCPD.
Keywords
Dimethylcyclopentadiene; Hydrogenation; Isomerization; Second Stage Heat Controllable Reactor; Halog enized Aluminum;
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