Dehydrogenation Catalyst
Dehydrogenation Catalyst
- Mocheso o Phahameng oa Dehydrogenation Catalytic Technology
Tse kang iron oxide - chromium oxide - potassium oxide e ka etsa ethylbenzene (kapa n-butene) dehydrogenation ka styrene (kapa butadiene) tlas'a mocheso o phahameng le mouoane o mongata oa metsi.
- thekenoloji e tlase ea mocheso dehydrogenation catalytic
Hobane dehydrogenation hangata e hloka ho etsoa ka mocheso o phahameng, decompression kapa boteng ba palo e kholo ea diluent, tšebeliso ea matla e kholo.Lilemong tsa morao tjena, oxidative dehydrogenation ka mocheso o tlase o 'nile oa ntlafatsoa.Joalo ka polyethylene e nang le bismuth - molybdenum metal oxide catalyst ka oxidative dehydrogenation ea butadiene.
Hydrogenation catalystha e sebelisoe feela ts'ebetsong ea tlhahiso, empa hape e sebelisoa haholo ts'ebetsong ea ho hloekisa lihlahisoa tse tala le lihlahisoa.Ho ea ka maemo a fapaneng a hydrogenation, e ka aroloa ka mekhahlelo e meraro:
① Lisebelisoa tse khethiloeng tsa hydrogenation, tse kang ethylene le propylene tse fumanoang ho petroleum hydrocarbon cracking e le lisebelisoa tse tala tsa polymerization, li tlameha ho khethoa pele ka hydrogenation, ho tlosa litšila tse kang alkyne, diene, carbon monoxide, carbon dioxide, oksijene, le ho se lahleheloe ke ene. .Sesebelisoa se sebelisoang hangata ke palladium, platinum kapa nickel, cobalt, molybdenum, joalo-joalo, holim'a alumina.
② Non-selective hydrogenation catalyst, ke hore, catalyst e sebelisetsoang ho teba ha hydrogenation ho metsoako e tletseng.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.
③ Hydrogenation catalyst, joalo ka koporo chromate catalyst bakeng sa oli hydrogenation ho hlahisa lino tse tahang tse phahameng.
Ke sesebelisoa sa pele sa ho rarahana se sebelisoang tlhahisong ea indasteri.Li-aldehydes tse nang le athomo e le 'ngoe hape ea carbon li hlahisoa ke karabelo ea alkenes e nang le syngas (CO + H2) ka pel'a catalyst.Tse kang ethylene, propylene e le lisebelisoa tse tala ka hydroformylation (ke hore, e tsejoang e le carbonyl synthesis) propyl aldehyde, butyl aldehyde.Hydroformylation e ile ea etsoa ka har'a mokelikeli ka mocheso o phahameng le khatello ho sebelisoa carbonyl cobalt complex e le sesosa.
Polyethylene e arotsoe haholo-holo ka har'a sekhahla se tlaase le se phahameng.Nakong e fetileng, ba pele ba ne ba sebelisa mokhoa oa khatello e phahameng (100 ~ 300MPa) tlhahiso, oksijene, organic peroxide e le sesosa.Ea ho qetela e hlahisoa haholo ke mokhoa oa khatello ea mahareng kapa mokhoa o tlase oa khatello.Ka mokhoa oa khatello e mahareng, chromium-molybdenum oxide e tsamaisoa holim'a sekhomaretsi sa silicon aluminium e le sesosa.Ka mokhoa o tlase oa khatello, mofuta oa Ziegler mofuta oa catalyst (o emetsoeng ke titanium tetrachloride le triethyl aluminium system) e sebelisetsoa polymerization ka mocheso o tlaase le khatello e tlaase.Tlhahiso ea polypropylene e boetse e ntlafalitse sistimi ea titanium-aluminium e ts'ehetsang ts'ebetso e phahameng ea ts'ebetso, ka gram ea titanium e ka hlahisa ho feta 1000kg ea polypropylene.
Ke sesebelisoa sa pele sa ho rarahana se sebelisoang tlhahisong ea indasteri.Li-aldehydes tse nang le athomo e le 'ngoe hape ea carbon li hlahisoa ke karabelo ea alkenes e nang le syngas (CO + H2) ka pel'a catalyst.Tse kang ethylene, propylene e le lisebelisoa tse tala ka hydroformylation (ke hore, e tsejoang e le carbonyl synthesis) propyl aldehyde, butyl aldehyde.Hydroformylation e ile ea etsoa ka har'a mokelikeli ka mocheso o phahameng le khatello ho sebelisoa carbonyl cobalt complex e le sesosa.
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