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Dehydrogenation Catalyst

Dehydrogenation Catalyst

Fa'amatalaga Puupuu:

1. Dehydrogenation catalyst

2.Hydrogenation catalyst

3.Hydroformylation catalyst

4.Polymerization catalyst

5.Alumina catalyst


Fa'amatalaga Oloa

Faailoga o oloa

Dehydrogenation catalyst

  • Tekinolosi Catalytic Dehydrogenation Temperature maualuga
E pei o le iron oxide – chromium oxide – potassium oxide e mafai ona fa'a'ele'elea le ethylbenzene (po'o le n-butene) i le styrene (po'o le butadiene) i lalo o le vevela maualuga ma le tele o ausa vai.
  • maualalo le vevela dehydrogenation tekinolosi catalytic
Talu ai o le dehydrogenation e masani ona manaʻomia le faʻatinoina i le maualuga o le vevela, faʻaleagaina poʻo le i ai o se numera tele o mea faʻafefete, e tele le faʻaaogaina o le malosi.I tausaga talu ai nei, o le oxidative dehydrogenation i le maualalo o le vevela ua atiaʻe.E pei o le polyethylene ma le bismuth - molybdenum metal oxide catalyst e oxidative dehydrogenation o le butadiene.
 
Fa'ato'a fa'asuavaie le gata o loʻo faʻaaogaina i le gaosiga o gaosiga, ae faʻaaogaina lautele i le faʻamamaina o mea faʻapitoa ma oloa.E tusa ai ma tulaga hydrogenation eseese, e mafai ona vaevaeina i ni vaega se tolu:
① Filifilia faʻamaʻi faʻamaʻi, e pei o le ethylene ma le propylene e maua mai le suauʻu hydrocarbon taʻe e pei o le polymerization mea mata, e tatau ona filifilia muamua e le hydrogenation, e aveese ai mea leaga e pei ole alkyne, diene, carbon monoxide, carbon dioxide, okesene, ma leai se mea e leiloa. .O le faʻaaogaina e masani lava o le palladium, platinum poʻo le nickel, cobalt, molybdenum, ma isi, i luga ole alumina.
② E le filifilia le hydrogenation catalyst, o lona uiga, o le catalyst e fa'aaogaina mo le loloto o le hydrogenation i mea fa'atutu.E pei o le hydrogenation benzene i le cyclohexane ma le nickel-alumina catalyst, phenol hydrogenation i le cyclohexanol, e iai le dinitrile hydrogenation i le hexdiamine ma le nickel catalyst.
③ Fa'ato'aga fa'amasani, e pei o le kopa chromate catalyst mo le suau'u hydrogenation e maua ai le ava maualuga.
 
O le fa'atosina fa'alavelave fa'atosina fa'aaogaina i le gaosiga o fale gaosi oloa.Aldehydes fa'atasi ai ma le isi kaponi e tasi e gaosia e ala i le tali atu o alkenes ma syngas (CO + H2) i le i ai o le catalyst.E pei o le ethylene, propylene o mea mata e ala i le hydroformylation (o lona uiga, o le carbonyl synthesis) propyl aldehyde, butyl aldehyde.O le hydroformylation na faia i le vaega vai i le maualuga o le vevela ma le mamafa e faʻaaoga ai le carbonyl cobalt complex e fai ma faʻamalosi.
 
O le polyethylene e masani ona vaevaeina i le maualalo ma le maualuga.I le taimi ua tuanaʻi, o le mea muamua na faʻaaogaina auala maualuga maualuga (100 ~ 300MPa) gaosiga, okesene, organic peroxide e fai ma faʻamalosi.O le mea mulimuli e masani lava ona gaosia e ala i le auala o le mamafa poʻo le auala maualalo.I le auala o le mamafa, o le chromium-molybdenum oxide o loʻo faʻapipiʻiina i luga o le kelu alumini alumini e fai ma faʻamalosi.I le auala maualalo, Ziegler type catalyst (faʻatusalia e titanium tetrachloride ma triethyl alumini system) e faʻaaogaina mo le polymerization i le maualalo o le vevela ma le maualalo o le mamafa.O le gaosiga o le Polypropylene na fa'atupuina fo'i le fa'aogaina o le titanium-alumini system o le fa'atosina maualuga, i le kalama o le titanium e mafai ona maua ai le sili atu i le 1000kg o polypropylene.
 
O le fa'atosina fa'alavelave fa'atosina fa'aaogaina i le gaosiga o fale gaosi oloa.Aldehydes fa'atasi ai ma le isi kaponi e tasi e gaosia e ala i le tali atu o alkenes ma syngas (CO + H2) i le i ai o le catalyst.E pei o le ethylene, propylene o mea mata e ala i le hydroformylation (o lona uiga, o le carbonyl synthesis) propyl aldehyde, butyl aldehyde.O le hydroformylation na faia i le vaega vai i le maualuga o le vevela ma le mamafa e faʻaaoga ai le carbonyl cobalt complex e fai ma faʻamalosi.

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