Otu esi eme ka sieve molekụla 4a pụta mgbe nnabata mmiri gasịrị

Mgbe 4a molecular sieve na-adịghị juru n'ọnụ tightly ma ọ bụ ebe nchekwa mebiri emebi, kedu ka esi emeso ya mmiri absorption na mmiri?Taa, anyị ga-akọwapụta ikike adsorption nke sieve molecular na usoro ọgwụgwọ nke nnabata mmiri na hygroscopicity.

Sive molekụla nwere ikike mgbasa ozi siri ike.Ọ bụghị naanị na ọ na-amịkọrọ mmiri, kamakwa na-etinye ihe ndị na-adịghị ọcha na ikuku.Ya mere, na mmepụta mmepụta ihe, a na-ejikarị ya eme ihe maka ọrụ mgbasa ozi, si otú a na-arụ ọrụ dị mma na nkewa na mgbasa ozi.Kedu ihe anyị kwesịrị ime ma ọ bụrụ na echekwabara sieve molecular 4a na-ekwesịghị ekwesị ma ọ bụ kpachie ya nke ọma n'oge eji?

1. Mechievalvụ inlet isi ụlọ elu, dị nnọọ ịgbanwee sieves molekụla nke tankị abụọ ahụ maka mgbasa ozi, ma jiri ikuku dị n'azụ sieves molecular na-enweghị mmiri iji mee ka sieves molekụla dịghachi.Otú ọ dị, mgbe a gbanwere sieves molecular na-enweghị mmiri ka ọ rụọ ọrụ, mmiri dị n'azụ ha ga-abanye na sieves molecular na-enweghị mmiri.Sives molekụla abụọ a nwere mmiri, wee maliteghachi ibe ha.Na mgbasawanye mgbasa ozi, ọdịnaya mmiri na-ebelata, ma mesịa nweta mgbasa ozi n'otu oge.

2.Directlykpo oku na ihicha 4a molecular sieve iji kpoo ya ngwa ngwa o kwere mee ma weghachi ikike mgbasa ozi ya;Otú ọ dị, mgbe nnukwu mmiri na-abanye na sieve molecular, mgbe ị na-eji usoro ahụ dị n'elu na-eme ka ọ dịghachi ndụ, ma sieve molecular ga-emepụta nnukwu mmiri, ha abụọ ga-emegharị ma mesịa hapụ ikike mgbasa ozi ha.Ihe kpatara ya bụ: mgbe nnukwu mmiri na-abanye na zeolite, mmiri na-emeghachi omume na zeolite, na mmiri na-agbanwe site na steeti free na mmiri kristal nke zeolite.Ọbụna ma ọ bụrụ na okpomọkụ nke mmeghari ahụ dị ogo 200, a pụghị iwepụ mmiri kristal, na ọrụ mgbasa ozi nke zeolite nwere ike weghachite naanị mgbe ọ laghachiri na ọkụ na 400 degrees site na onye nrụpụta!

Ya mere, mgbe sieve molekụla na-amịkọrọ mmiri na mpaghara buru ibu ma na-emetụta ya na mmiri mmiri, a ga-akwụsị ọrụ ahụ ozugbo ma maliteghachi.Ọ bụrụ na enweghị ike iweghachi mgbasa ozi ahụ site na ụzọ abụọ a dị n'elu, a ga-akpọtụrụ onye nrụpụta ozugbo enwere ike ịmegharị calcination ahụ.

4a usoro ịgbalite sieve molecular na usoro mmụgharị:

1. 4a mgbanwe nke zeolite okpomọkụ, ya bụ "mgbanwe okpomọkụ"

A na-ewepụ adsorbate site na kpo oku sieve molecular.N'ozuzu, sieves molekụla eji na ụlọ ọrụ na-ekpo ọkụ ma na-ekpo ọkụ, na-asachapụ ihe dị ka 200 ℃, na-ewepụkwa adsorbate ahụ mebiri emebi.

2. Gbanwee nrụgide ikwu nke 4a zeolite

Ya bụ, n'ime usoro mgbasa ozi nke gas, usoro bụ isi bụ idobe okpomọkụ nke adsorbent mgbe niile, ma wepụ adsorbate site na nkwụsịtụ na azụ ịfụ gas inert.

N'ime usoro mmeghari nke 4a molecular sieve, a ga-akwụ ụgwọ nlebara anya iji zere nnukwu mmiri na-asọba, mmekọrịta dị n'etiti mmiri na sieve molecular, na mgbanwe nke mmiri site na steeti free gaa na steeti crystalline.Ọbụna ma ọ bụrụ na mmeghari okpomọkụ ruru 200 ℃, ọ na-esiri ike iwepụ mmiri kristal.Ọ bụrụ na oge nri ahụ gafere nkeji iri, a ga-ahụkwa ntụpọ mmiri doro anya mgbe ikuku ọhụrụ gachara, enwere ike ikpebi na sieve molecular kwesịrị ịlaghachi na ọkụ na-enweghị mmeghari ohuru.