I-Dehydrogenation Catalyst
I-Dehydrogenation Catalyst
- Ubushushu obuphezulu Dehydrogenation Catalytic Technology
Njenge-iron oxide - i-chromium oxide - i-potassium oxide inokwenza i-ethylbenzene (okanye i-n-butene) i-dehydrogenation ibe yi-styrene (okanye i-butadiene) phantsi kobushushu obuphezulu kunye nomthamo omkhulu womphunga wamanzi.
- ubushushu obuphantsi be-dehydrogenation catalytic technology
Ngenxa yokuba i-dehydrogenation ngokuqhelekileyo kufuneka iqhutywe kwiqondo lokushisa eliphezulu, i-decompression okanye phambi kwenani elikhulu le-diluents, ukusetyenziswa kwamandla kukhulu.Kwiminyaka yakutshanje, i-oxidative dehydrogenation kumaqondo obushushu aphantsi iye yaphuhliswa.Njenge-polyethylene ene-bismuth - i-molybdenum metal oxide catalyst nge-oxidative dehydrogenation ye-butadiene.
I-Hydrogenation catalystayisetyenziswanga kuphela kwinkqubo yokuvelisa, kodwa isetyenziswa ngokubanzi kwinkqubo yokusulungekiswa kwezinto ezikrwada kunye neemveliso.Ngokweemeko ezahlukeneyo ze-hydrogenation, inokwahlulwa ibe ngamacandelo amathathu:
① Izinto ezikhethiweyo ze-hydrogenation catalysts, ezifana ne-ethylene kunye nepropylene efunyenwe kwi-petroleum hydrocarbon cracking njenge-polymerization ekrwada, kufuneka kuqala ikhethwe yi-hydrogenation, ukususa ukungcola okufana ne-alkyne, i-diene, i-carbon monoxide, i-carbon dioxide, i-oksijini, kwaye akukho lahleko ye-ene. .I-catalyst esetyenziswayo ngokubanzi yi-palladium, iplatinam okanye i-nickel, i-cobalt, i-molybdenum, njl., kwi-alumina.
② I-hydrogenation catalyst engakhethiyo, oko kukuthi, i-catalyst esetyenziselwa i-hydrogenation enzulu kwi-saturated compounds.Okufana ne-benzene hydrogenation ukuya kwi-cyclohexane ene-nickel-alumina catalyst, i-phenol hydrogenation ukuya kwi-cyclohexanol, ine-dinitrile hydrogenation kwi-hexdiamine ene-nickel catalyst.
③ I-Hydrogenation catalyst, efana ne-copper chromate catalyst ye-oyile ye-hydrogenation ukuvelisa i-alcohols ephezulu.
Yeyona nto idala icomplexation catalyst esetyenziswa kwimveliso yefektri.I-Aldehydes ene-athomu yekhabhoni enye iveliswa ngokuphendula kwe-alkenes kunye ne-syngas (CO + H2) phambi kwe-catalyst.Njenge-ethylene, ipropylene njengezinto eziluhlaza ngokusebenzisa i-hydroformylation (oko kukuthi, eyaziwa ngokuba yi-carbonyl synthesis) ipropyl aldehyde, i-butyl aldehyde.I-Hydroformylation yenziwa kwisigaba solwelo kwiqondo lokushisa eliphezulu kunye noxinzelelo usebenzisa i-carbonyl cobalt complex njenge-catalyst.
I-Polyethylene yohlulwe kakhulu kwi-low density kunye ne-high density.Ngaphambili, yangaphambili yasebenzisa indlela yoxinzelelo oluphezulu (100 ~ 300MPa) ukuveliswa, i-oxygen, i-organic peroxide njenge-catalyst.Le yokugqibela iveliswa ikakhulu yindlela yoxinzelelo oluphakathi okanye indlela yoxinzelelo oluphantsi.Kwindlela yoxinzelelo oluphakathi, i-chromium-molybdenum oxide ithwalwa kwiglue ye-silicon aluminiyam njenge-catalyst.Kwindlela yoxinzelelo oluphantsi, i-Ziegler uhlobo lwe-catalyst (emelwe yi-titanium tetrachloride kunye ne-triethyl aluminium system) isetyenziselwa i-polymerization kwiqondo lokushisa eliphantsi kunye noxinzelelo oluphantsi.Imveliso ye-polypropylene iphuhlise inkqubo ye-titanium-aluminiyam exhaswayo ye-catalyst esebenzayo, ngegram ye-titanium inokuvelisa ngaphezu kwe-1000kg ye-polypropylene.
Yeyona nto idala icomplexation catalyst esetyenziswa kwimveliso yefektri.I-Aldehydes ene-athomu yekhabhoni enye iveliswa ngokuphendula kwe-alkenes kunye ne-syngas (CO + H2) phambi kwe-catalyst.Njenge-ethylene, ipropylene njengezinto eziluhlaza ngokusebenzisa i-hydroformylation (oko kukuthi, eyaziwa ngokuba yi-carbonyl synthesis) ipropyl aldehyde, i-butyl aldehyde.I-Hydroformylation yenziwa kwisigaba solwelo kwiqondo lokushisa eliphezulu kunye noxinzelelo usebenzisa i-carbonyl cobalt complex njenge-catalyst.
Bhala umyalezo wakho apha kwaye uwuthumele kuthi
