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1.6 ~ 2.5mm Zeolite molekyuli yokuluka 3a 4a 5a ubume, chemistry, kunye nokusetyenziswa

1.6 ~ 2.5mm Zeolite molekyuli yokuluka 3a 4a 5a ubume, chemistry, kunye nokusetyenziswa

1.6~2.5mm Zeolite molecular sieve 3a 4a 5a structure, chemistry, and use Featured Image
  • 1.6~2.5mm Zeolite molecular sieve 3a 4a 5a structure, chemistry, and use
  • 1.6~2.5mm Zeolite molecular sieve 3a 4a 5a structure, chemistry, and use

Inkcazo emfutshane:

I-Zeolite sieve yeemolekyulu luhlobo lwe-adsorbent okanye imiboniso bhanyabhanya ene-micropores efanayo, ubukhulu becala eyenziwe nge-silicon, i-aluminium, ioksijini kunye nezinye izinto zentsimbi. Ubungakanani bepore bulingana nobukhulu beemolekyuli ngokubanzi, kwaye iimolekyuli ezahlukeneyo zolwelo ziyahlanjululwa ngokobungakanani bepore. I-Zeolite sieve ye-molecular ibhekisa kwezo zendalo kunye ne-crystalline aluminosilicates ezinomsebenzi we-molecular sieve. I-Zeolite sieve ye-molekyuli ibe sisifundo esizimeleyo ngenxa yesakhiwo sayo kunye nokusebenza kwayo. Ukusetyenziswa kwe-zeolite sieve yeemolekyuli kuye kwasasazeka kumzi mveliso we-petrochemical, ukhuselo lokusingqongileyo, ubunjineli bendalo, ishishini lokutya, amayeza kunye neekhemikhali kunye nezinye iinkalo. Ngokuphuhliswa kwemizi-mveliso eyahlukeneyo kuqoqosho lwesizwe, ithemba lesicelo le-zeolite molecular sieve liye landa ngokubanzi.


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Iimpawu zemveliso

Ukusebenza kwentengiso

I-adsorption ye-zeolite ye-molecular sieve yinkqubo yotshintsho lomzimba. Esona sizathu siphambili sentengiso ye-adsorption luhlobo "lwamandla ombuso" aveliswe ngumxhuzulane wemolekyuli osebenza kumhlaba oqinileyo. Xa ulwelo luhamba, ezinye iimolekyuli kulwelo zingqubana nomphezulu we adsorbent ngenxa yokuhamba gwenxa, kubangela uxinzelelo lweemolekyuli ngaphezulu. Ukunciphisa inani leemolekyuli kulwelo ukufezekisa injongo yokwahlula nokususa. Kuba akukho tshintsho lwekhemikhali kwi-adsorption, ukuba nje sizama ukugxotha iimolekyuli ezigxunyekwe ngaphezulu, i-zeolite sieve yemolekyuli iya kuba namandla okuthengisa kwakhona. Le nkqubo yinkqubo yokubuyela umva kwe-adsorption, ebizwa ngokuba luhlalutyo okanye ukwenziwa ngokutsha. Kuba i-zeolite sieve ye-molecular ine-pore size efanayo, kuphela xa ubukhulu be-molecular dynamics buncinci kune-zeolite sieve ye-molecular inokuthi ingene ngaphakathi ngaphakathi kwi-crystal cavity kwaye ifakwe kwi-adsorbed. Ke ngoko, i-zeolite sieve ye-molekyuli injengesefu yegesi kunye neemolekyuli zolwelo, kwaye kumiselwe ukuba ngaba kufuneka kubhengezwe okanye hayi ngokobungakanani bemolekyuli. . Kuba i-zeolite sieve ye-molecular ine-polarity eqinileyo kwisithambo se-crystalline, inokuba nefuthe elomeleleyo kumphezulu we-zeolite molekyuli eneemolekyuli ezinamaqela e-polar, okanye ngokuphembelela ukuhlukaniswa kwemolekyuli ezinokuvelisa ukuvelisa intengiso eyomeleleyo. Olu hlobo lweemolekyuli ezi-polar okanye ezi-polarized ngokulula kulula ukubhengezwa yi-polar zeolite sieve yeemolekyuli, ebonisa olunye ukhetho lwentengiso ye-zeolite sieve yeemolekyuli.

Ukusebenza kotshintshiselwano nge-Ion

Ngokubanzi, ukutshintshiselana nge-ion kubhekisa kutshintshiselwano ngeembuyekezo zangaphandle kwenkqubo ye-zeolite sieve yeemolekyuli. Iion zembuyekezo ezingaphandle kwesakhelo se-zeolite sieve yeemolekyuli zihlala ziiproton kunye nealkali zesinyithi okanye isinyithi sealkali zomhlaba, ekuthi ngokulula zitshintshwe nge-ion zenziwe nge-valence yentsimbi ye-ion-uhlobo lwe-zeolite sieve zemolekyuli kwisisombululo esinamandla seetyiwa zentsimbi. Ion kulula ukufuduka phantsi kweemeko ezithile, ezinje ngezisombululo ezinamandla okanye amaqondo obushushu aphezulu.

Kwisisombululo esinamanzi, ngenxa yokhetho olwahlukileyo lwe-ion yee-molecular sieve, iipropathi ezahlukeneyo zotshintshiselwano nge-ion zinokuboniswa. I-hydrothermal ion reaction yokusabela phakathi kwe-cations zentsimbi kunye ne-zeolite ye-molecular sieve yinkqubo yokusasazeka simahla. Ixabiso lokusasazeka lithintela izinga lokuphendula lotshintshiselwano.

Ukusebenza Catalytic

Ii-siole zeemolekyuli zeZeolite zinesakhiwo esiqhelekileyo sekristal, nganye nganye inesakhiwo sepore sobungakanani kunye nemilo, kwaye inendawo enkulu engaphezulu. Uninzi lweeseli ze-zeolite zeeseli zinamaziko e-asidi omeleleyo ngaphezulu, kwaye kukho intsimi eyomeleleyo yeCoulomb kwindawo yekristale pores. Ezi mpawu zenza ukuba kube yinto efanelekileyo kakhulu. Ukuphendulwa kwe-Heterogeneous catalytic kwenziwa kwi-catalysts eqinileyo, kwaye umsebenzi we-catalytic unxulumene nobungakanani beekristal pores ze-catalyst. Xa i-zeolite sieve yemolekyuli isetyenziswa njengesixhobo sokuthambisa okanye isiphatho se-catalyst, inkqubela phambili yempendulo yokulawula ilawulwa bubungakanani bepore yesisefu se-zeolite molecular. Ubungakanani kunye nokumila kwee-crystal pores kunye ne-pores zingadlala indima ekhethiweyo ekuphenduleni. Ngaphantsi kweemeko zokuphendula ngokubanzi, ii-zeolite molecular sieve zidlala indima ekhokelayo kwicala lokuphendula kunye nokubonisa ukusebenza kwe-catalytic. Le ntsebenzo yenza i-zeolite sieve yee-molecular izinto ezintsha ezinobunzima obomeleleyo.

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