Dehydrogenation Catalyst
Dehydrogenation Catalyst
- High Temperature Dehydrogenation Catalytic Technology
Zvakadai sesimbi oxide - chromium oxide - potassium oxide inogona kuita ethylbenzene (kana n-butene) dehydrogenation mu styrene (kana butadiene) pasi pekushisa kwepamusoro uye yakawanda yemvura mhute.
- yakaderera tembiricha dehydrogenation catalytic tekinoroji
Nekuti dehydrogenation kazhinji inoda kuitwa pakupisa kwepamusoro, decompression kana pamberi pehuwandu hwema diluents, simba rekushandisa rakakura.Mumakore achangopfuura, oxidative dehydrogenation pane tembiricha yakaderera yakagadzirwa.Zvakadai se polyethylene ine bismuth - molybdenum metal oxide catalyst by oxidative dehydrogenation yebutadiene.
Hydrogenation catalysthaingoshandiswi chete mukuita kwekugadzira, asi zvakare inoshandiswa zvakanyanya mukunatsa kwezvakagadzirwa zvinhu uye zvigadzirwa.Zvinoenderana neakasiyana hydrogenation mamiriro, inogona kukamurwa muzvikamu zvitatu:
① Sarudzo yehydrogenation catalysts, senge ethylene uye propylene inowanikwa kubva petroleum hydrocarbon inoputika sepolymerization mbishi zvinhu, inofanira kutanga yasarudzwa nehydrogenation, kubvisa tsvina yakaita sealkyne, diene, carbon monoxide, carbon dioxide, okisijeni, uye pasina kurasikirwa kweene. .Iyo catalyst inoshandiswa inowanzo palladium, platinamu kana nickel, cobalt, molybdenum, nezvimwewo, pane alumina.
② Non-selective hydrogenation catalyst, ndiko kuti, iyo catalyst inoshandiswa pakadzika hydrogenation kusvika kune yakazara makomisheni.Zvakadai sebenzene hydrogenation kune cyclohexane ine nickel-alumina catalyst, phenol hydrogenation kusvika cyclohexanol, ine dinitrile hydrogenation kune hexdiamine ine nickel catalyst.
③ Hydrogenation catalyst, yakadai semhangura chromate catalyst yemafuta hydrogenation kugadzira madoro akakwira.
Ndiyo yekutanga kuomarara catalyst inoshandiswa mukugadzirwa kwemaindasitiri.Aldehydes ine imwezve kabhoni atomu inogadzirwa nekuita kwealkenes ine syngas (CO + H2) pamberi peiyo catalyst.Zvakadai se ethylene, propylene seyakagadzirwa zvinhu kuburikidza nehydroformylation (kureva, inozivikanwa secarbonyl synthesis) propyl aldehyde, butyl aldehyde.Hydroformylation yakaitwa muchikamu chemvura pane tembiricha yakanyanya uye kudzvanywa uchishandisa carbonyl cobalt yakaoma secatalyst.
Polyethylene inonyanya kukamurwa kuita yakaderera density uye yakakwirira density.Kare, iyo yekare yakashandisa nzira yekumanikidza (100 ~ 300MPa) kugadzira, oxygen, organic peroxide secatalyst.Iyo yekupedzisira inonyanya kugadzirwa nepakati yekumanikidza nzira kana yakaderera nzira yekumanikidza.Mune yepakati yekumanikidza nzira, chromium-molybdenum oxide inotakurwa pasilicon aruminiyamu glue sechinhu chinokonzeresa.Munzira yakaderera yekumanikidza, Ziegler type catalyst (inomiririrwa netitanium tetrachloride uye triethyl aluminium system) inoshandiswa kuita polymerization pakudzika kwakadzika uye kuderera kudzvinyirira.Kugadzirwa kwepolypropylene kwakagadziridzwa zvakare inotsigirwa titanium-aluminium system yeyakanyanya kushanda zvakanaka catalyst, pagiramu retitanium inogona kuburitsa anopfuura 1000kg yepolypropylene.
Ndiyo yekutanga kuomarara catalyst inoshandiswa mukugadzirwa kwemaindasitiri.Aldehydes ine imwezve kabhoni atomu inogadzirwa nekuita kwealkenes ine syngas (CO + H2) pamberi peiyo catalyst.Zvakadai se ethylene, propylene seyakagadzirwa zvinhu kuburikidza nehydroformylation (kureva, inozivikanwa secarbonyl synthesis) propyl aldehyde, butyl aldehyde.Hydroformylation yakaitwa muchikamu chemvura pane tembiricha yakanyanya uye kudzvanywa uchishandisa carbonyl cobalt yakaoma secatalyst.
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