Whakakorehia te Whakakore
Whakakorehia te Whakakore
- Hangarau Catalytic Dehydrogenation High Temperature Dehydrogenation
Pērā i te waikura rino – chromium oxide – pāhare pāporo waikura ka taea e te ethylbenzene (n-butene ranei) te whakamaroketanga ki te styrene (butadiene ranei) i raro i te pāmahana teitei me te nui o te kohu wai.
- iti te pāmahana dehydrogenation hangarau catalytic
Na te mea me mahi te whakamaarahatanga i te pāmahana teitei, te whakahekenga, i te aroaro ranei o te tini o nga waimeha, he nui te kai hiko.I roto i nga tau tata nei, kua whakawhanakehia te whakahekenga waiora i nga pāmahana iti.Pērā i te polyethylene me te bismuth – molybdenum whakarewa waikura whakakōkī mā te whakahāhā waihā o te butadiene.
Te whakakorikori hauwaie kore e whakamahia anake i roto i te tukanga whakaputa, engari whakamahia whānuitia i roto i te tukanga whakamahine o rauemi mata me hua.I runga i nga ahuatanga rerekee, ka taea te wehewehe ki nga waahanga e toru:
① Ko nga kaitakawaenga hauwai, penei i te ethylene me te propylene i whiwhi mai i te kapiti petroleum hydrocarbon hei rauemi matawai polymerization, me whiriwhiri tuatahi ma te hauwai, ki te tango i nga poke penei i te alkyne, diene, carbon monoxide, carbon dioxide, oxygen, me te kore e ngaro te ene. .Ko te whakakorikori e whakamahia ana ko te palladium, te konukawata, te nickel ranei, te cobalt, te molybdenum, me etahi atu, i runga i te alumina.
② Ko te whakakōkī hauwai-kore-whiriwhiri, ara, te whakakōkī e whakamahia ana mō te hauwai hōhonu ki ngā pūhui kukū.Pērā i te hauwai benzene ki te cyclohexane me te nickel-alumina catalyst, te phenol hydrogenation ki te cyclohexanol, he dinitrile hydrogenation ki te hexdiamine me te nickel catalyst.
③ Te whakakorikori wai, penei i te konukura chromate whakakorikori mo te hauwai hinu ki te whakaputa waipiro teitei ake.
Koia te whakakorikori whakahiato tuatahi i whakamahia i roto i te hanga ahumahi.Ko nga Aldehydes me tetahi atu ngota waro ka puta mai i te tauhohenga o nga alkenes me nga syngas (CO+H2) i te aroaro o te whakakorikori.Pērā i te ethylene, te propylene hei rauemi mata mā te hydroformylation (ara, e mohiotia ana ko te carbonyl synthesis) propyl aldehyde, butyl aldehyde.I mahia te hydroformylation i roto i te wahanga wai i te teitei o te pāmahana me te pehanga ma te whakamahi i te matatini waro-cobalt hei whakakorikori.
Ko te polyethylene te nuinga ka wehewehea ki te iti me te teitei.I nga wa o mua, i whakamahia e te mua te tikanga pehanga teitei (100 ~ 300MPa) te whakaputa, te hāora, te peroxide organic hei whakakōkī.Ko te mea whakamutunga ko te nuinga o te whakaputa ma te tikanga pehanga reo, ki te tikanga pehanga iti ranei.I roto i te tikanga pehanga reo, ka mauhia te chromium-molybdenum oxide i runga i te kapia konumohe silicon hei whakakorikori.I roto i te tikanga pēhanga iti, Ziegler momo whakakōkī (e tohuhia ana e te titanium tetrachloride me te pūnaha konumohe triethyl) ka whakamahia mo te polymerization i te iti o te pāmahana me te iti o te pehanga.I whakawhanakehia hoki te hanga polypropylene i tautokohia te punaha titanium-konumohe o te whakakorikori tino pai, ka taea e ia karamu o te Titanium te whakaputa neke atu i te 1000kg polypropylene.
Koia te whakakorikori whakahiato tuatahi i whakamahia i roto i te hanga ahumahi.Ko nga Aldehydes me tetahi atu ngota waro ka puta mai i te tauhohenga o nga alkenes me nga syngas (CO+H2) i te aroaro o te whakakorikori.Pērā i te ethylene, te propylene hei rauemi mata mā te hydroformylation (ara, e mohiotia ana ko te carbonyl synthesis) propyl aldehyde, butyl aldehyde.I mahia te hydroformylation i roto i te wahanga wai i te teitei o te pāmahana me te pehanga ma te whakamahi i te matatini waro-cobalt hei whakakorikori.
Tuhia to korero ki konei ka tukuna mai ki a matou
