Dehydrogenation yog ib qho tseem ceeb, ob qho tib si li cov tshuaj tiv thaiv muaj txiaj ntsig thiab teeb meem lojNtawm nws qhov yooj yim tshaj plaws, nws yog txoj hauv kev muaj txiaj ntsig ntawm kev hloov alkanes, uas yog qhov tsis muaj zog thiab yog li qis qis, rau olefins, uas yog reactive thiab yog li muaj nqis dua. Alkenes yog precursors rau aldehydes, cawv, polymers, thiab aromatics.
Dehydrogenation piv txwv yog dab tsi?
Dehydrogenation yog cov txheej txheem uas hydrogen tshem tawm los ntawm cov organic compound los tsim cov tshuaj tshiab (piv txwv li, hloov cov saturated rau hauv cov tebchaw tsis txaus ntseeg). Los ntawm: Environmental Organic Chemistry for Engineers, 2017.
YPuas dehydrogenation zoo ib yam li oxidation?
Yog li, nyob rau hauv tus txheej txheem ntawm dehydrogenation cov pa roj carbon atom undergoes tag nrho cov electron ceev - thiab poob ntawm electrons yog oxidation.
Vim li cas dehydrogenation xav tau kub?
Dehydrogenation yog ib qho txheej txheem siv zog, vim lub siab zoo enthalpy ntawm cov tshuaj tiv thaiv (piv txwv li, isobutane, cyclohexane: ΔHr° ∼ 118 kJmol–1, Scheme 1A), 3 thiab kub kub yog li yuav tsum tau tsav lub cov tshuaj tiv thaiv (feem ntau 550-750 ° C siv cov catalyst heterogeneous), uas tam sim no cov kev cov nyom rau catalyst …
Koj ua li cas dehydrogenation?
Hydrogenation yog pib by hydrogen gas absorbing rau saum npoo ntawm cov hlau catalyst Qhov no ua rau dissociation ntawm ob hydrogen atoms. Tom ntej no, lub unsaturated organic compound txuas mus rau lub catalyst ntawm nws π-bond, uas tso cai rau ob tug sequential hydride hloov mus rau cov pa roj carbon khub.
