Sehlahisoa sa Oxidation & Mokelikeli oa khase ea khase
Sehlahisoa sa Oxidation & Mokelikeli oa khase ea khase
Ha ethylene le propylene tse fumanoang ho tloha petroleum hydrocarbon cracking li sebelisoa e le lisebelisoa tsa polymerization, khetho ea hydrogenation e hlokahalang ho tlosa litšila tse kang alkyne, diene, carbon monoxide, carbon dioxide le oksijene, ntle le tahlehelo ea olefin.Sesebelisoa se sebelisoang hangata ke palladium, platinum kapa nickel, cobalt, molybdenum, joalo-joalo, holim'a alumina.Khetho ea hydrogenation catalysts e nang le thepa e fapaneng e ka fumanoa ka ho laola bongata ba ntho e sebetsang, mokhoa oa tlhahiso ea ts'ehetso le catalyst.Tse ling tse kang peterole e hloekisitsoeng, phokotso ea nitrobenzene hydrogenation ho aniline, hydrogenation catalyst.
Setsi sa hydrogenation e tebileng ho metsoako ea saturated.Joalo ka benzene hydrogenation ho cyclohexane e nang le nickel alumina catalyst, phenol hydrogenation to cyclohexanol, e na le ditrile hydrogenation ho hexdiamine e nang le nickel catalyst.
Ho sebelisa silicon carbide kapa α -alumina e le tšehetso (ka tekanyo e nyenyane ea barium oxide e le cocatalyst).Ka mor'a ntlafatso e tsoelang pele ea maemo a catalyst le tshebetso, lihlahisoa tsa boima ba ethylene li fetile 100%.
Sesebelisoa se fafalitsoeng holim'a silicon carbide kapa corundum bakeng sa oxidation ea o-xylene ho phthalic anhydride.Sesebelisoa se lokisitsoeng ka ho fafatsa karolo e sebetsang ea vanadium-molybdenum series oxides ho corundum bakeng sa oxidation ea benzene kapa butane ho anhydride ea maleic.Ntlafatso ea mofuta ona oa li-catalyst ke ho nts'etsopele ea likarolo tse ngata, li-catalyst tse robeli tsa likarolo li hlahile.Sebopeho sa mokhanni se boetse se fetoloa ho tloha ho spherical ho ea ho selikalikoe, semicircle ho thusa ho fetisa mocheso.Tloaelo e akaretsang ke ho phehella mojaro o phahameng, chai e ngata le bohloeki bo phahameng ba lihlahisoa.
Joalo ka methanol oxidation ho formaldehyde ka silevera - pumice (kapa alumina), iron oxide - molybdenum oxide le electrolytic silver catalyst.
Lilemong tsa bo-1960, ho ile ha etsoa setsi se nang le bismuth-mo-phosphorus compound oxide catalyst.Acrylonitrile e ka etsoa ka mohato o le mong ka ho eketsa propylene, ammonia le moea holim'a sesebelisoa.E le ho ntlafatsa khetho le lihlahisoa le ho fokotsa tšilafalo ea tikoloho, linaha tse fapa-fapaneng li lula li ntlafatsa ts'ebetso, 'me li-catalyst tse ling tse ncha li na le mefuta e ka bang 15 ea likarolo.Oxygen chlorination catalyst, the 60's e hlahisitse copper chloride alumina catalyst, ka har'a bethe e nang le metsi ka ethylene, hydrogen chloride le moea kapa oxygen e ka fumana dichloroethane.Dichloroethane e ne e entsoe ka pyrolyzed ho hlahisa vinyl chloride monomer.Mokhoa ona o molemo bakeng sa nts'etsopele ea PVC libakeng tseo ho tsona motlakase o theko e boima 'me li-petrochemicals li hlahisoa, mokhoa oa tlhahiso ea ts'ehetso le ts'ebetso.Tse ling tse kang peterole e hloekisitsoeng, phokotso ea nitrobenzene hydrogenation ho aniline, hydrogenation catalyst.
Mokelikeli oa khase ea oxidation
Ho na le haholo-holo:
(1) Ethylene, propylene oxidation acetaldehyde, acetone (Mokhoa oa Wacker), e nang le palo e nyenyane ea palladium.chloride copper chloride solution catalyst, ka olefin, moea kapa oksijene, kamora mohato o le mong kapa tse peli tsa karabelo ho fumana se hlokahalang.metsoako e nang le oksijene.Bothata ke ho senyeha ho hoholo ha lisebelisoa tsa karabelo.
(2) Oxidation e nkhang hamonate ea mahlakorengbakeng sa catalyst ea aryl acid, joalo ka p-xylene ka tharollo ea acetic acid e nang le cobalt acetate le palo e nyane ea ammonium bromide.ho futhumatsa, tlhahiso ea moea oxidation terephthalic acid, empa ho senyeha ho hoholo ha lisebelisoa tsa karabelo.
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