Siv pseudo-boehmite ua raw khoom, peb tuaj yeem muab cov khoom siv alumina ntawm ntau yam tshwj xeeb, cov duab (spherical, strip, hniav pob, nyem pob) thiab cov qauv siv lead ua sib txawv raws li cov neeg siv xav tau, nrog rau thaj chaw tshwj xeeb ntawm 1{{5} } m2/g - 380 m2/g, pore ntim 0.2ml/g-1.0ml/g, pob txoj kab uas hla 1.6mm los yog ntau tshaj. Cov tsim macroporous thiab tsis tshua muaj acidity alumina txhawb nqa tau dav siv hauv kev npaj ntawm ntau yam kev xaiv hydrogenation catalysts.
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