incazelo yomkhiqizo:
Izinto eziyinhloko ze-honeycomb zeolite yi-zeolite yemvelo, okuyingxenye ye-inorganic microporous eyakhiwe i-SiO2, i-Al2O3 nensimbi ye-alkaline noma i-alkaline earth metal. Ivolumu yayo yangaphakathi ye-pore i-akhawunti ye-40-50% yenani eliphelele futhi indawo yayo ethile i-300-1000 m2 / g. Inezici zokumelana nokushisa okuphezulu, ukungashisi, ukuzinza okuhle kokushisa kanye nokuzinza kwe-hydrothermal. Yisithwali se-molecular sieve esisebenza kahle kakhulu esisebenza kahle nge-adsorption, akukho ukungcoliswa kwesibili, futhi singenziwa kabusha ezingeni lokushisa eliphezulu. Uma kuqhathaniswa nekhekheba lezinyosi lekhabhoni ecushiwe, ukusebenza kwayo kucishe kube ngama-25%. Ukusebenza kahle okuphezulu, okusetshenziselwa kabanzi ku-adsorption, ukuhlukanisa, i-catalysis kanye nezinkambu zemvelo, ezifanele umthamo omkhulu womoya, ukwelashwa kwegesi yemfucuza ephansi ye-organic.
Izici:
1. Ukukhethwa kwe-adsorption okunamandla: Isisefo se-molecular sinosayizi wembotshana ohlanzekile nofanayo futhi iyi-adsorbent ye-ionic. Ngakho-ke, ingakwazi ukukhangisa ngokukhetha ngokuya ngosayizi kanye ne-polarity yama-molecule, futhi ingasusa ngempumelelo i-ethylene ne-propylene kuma-hydrocarbon agcwele. Ukususwa kwe-acetylene ku-ethylene kunqunywa i-polarity yayo eqinile.
2. Umthamo we-adsorption onamandla: Ngisho noma ukugxiliswa kwegesi kuphansi kakhulu, kusenamandla okukhangisa.
3. Ayithinteki kangako izinga lokushisa futhi isenamandla amakhulu e-adsorption emazingeni okushisa aphezulu, kuyilapho amanye ama-adsorbent ethintwa kakhulu izinga lokushisa.
Izisefo ze-molecular ze-honeycomb zeolite yilezi: ama-microporous molecular sieves kanye nama-mesoporous molecular sieves.
(1) Izisefo ze-molecular microporous ezinobubanzi bembotshana ye-molecular engaphansi kuka-2nm kanye no-2-50nm amasefa e-mesoporous molecular (ngaphezu kuka-50nm amasefa ama-macroporous molecular). Izisefo zamangqamuzana e-Mesoporous zinendawo ethize ephezulu kakhulu, isakhiwo seshaneli esivamile nesihlelekile, ukusabalalisa usayizi wezimbotshana ezincane, nosayizi wezimbotshana. Izici zosayizi olungisekayo ngokuqhubekayo zenza kube nzima ukukhangisa nokuhlukanisa ama-macromolecules kuma-sieve amaningi ama-microporous molecular. futhi udlale indima ebalulekile ekuphenduleni kwe-catalytic.
(2) Lapho kukhethwa, izinto zokusefa zamangqamuzana ezinezakhiwo ezihlukene kanye nosayizi wezimbotshana kufanele zimiswe ngokuvumelana nezingxenye ezihlukahlukene zegesi yemfucuza yemvelo ukuze kuzuzwe ukwelashwa kwegesi yemfucuza yemvelo ehlosiwe, ukuhlangabezana nezidingo, futhi kuhlangatshezwane nezindinganiso zokukhishwa.
Usayizi we-molecular sieve ye-honeycomb zeolite ngu-100*100*100mm. Siphinde sihlinzeke ngamasevisi enziwe ngokwezifiso. Muva nje, ikhasimende lithenge isisefo se-molecular 168*168*100mm se-honeycomb zeolite kithi.
Nazi izithombe zosayizi abajwayelekile:
Isikhathi sokuthumela: Jan-07-2025