Nitkpụrụ nke Nrụcha nke nitrogen site na Adsorption Swing na Carbon Molecular Sieve

Usoro adsorption na nkewa zuru oke na-ejikarị adsorption na ọrụ okirikiri ọrụ. N'ihi dị iche iche injinia pụtara iji nweta adsorption na desorption ọrụ, usoro na-ekewa n'ime mgbali Ngabiga adsorption na okpomọkụ Ngabiga adsorption. Pressure swing adsorption mezuru arụmọrụ ọrụ nke adsorption na desorption site na ịgbanwe mgbali ọrụ (nrụgide adsorption, decompression desorption), ebe okpomọkụ swing adsorption na-arụ ọrụ okirikiri site na ịgbanwe ọnọdụ okpomọkụ (adsorption dị jụụ, kpo oku desorption) iji mezue oru okirikiri. Nsogbu Ngabiga adsorption a na-eji na nkịtị adsorption usoro, na okpomọkụ siwing adsorption na-bụ-eji na chemical adsorption usoro.

Pressure siwing adsorption nke carbon molekul sieve bụ iji ikuku dị ka ihe akụrụngwa na carbon molekul sieve dị ka adsorbent ikewapụ nitrogen na oxygen na ikuku site na nrụgide na-agbanwe adsorption, ka e wee nweta nzube nke ịmecha nitrogen.

Ihe mgbasa ozi nke ihe dị na adsorbent (siri ike) elu ga-agabiga usoro abụọ: otu ga-eru elu ahụ siri ike site na mgbasa ozi molekụkụ, nke ọzọ bụ adsorb n'elu ala ahụ siri ike site Vihe der Waals' ike ma ọ bụ ike ijikọ kemịkal. Ya mere, iji nweta nkewa nke ngwakọta site na adsorption, akụkụ ndị dị iche iche ga-enwerịrị ọdịiche doro anya na ọnụ ọgụgụ ntụgharị nke mkpụrụ ndụ ma ọ bụ ikike adsorption elu.

The adsorption na nkewa nke N₂na O₂n'ikuku site carbon molekul sieve dabere na ọdịiche nke mgbasa mgbasa n'etiti ha. N₂na O₂ha bụ ụmụ irighiri ihe ndị na - enweghị atụ, ha na - adịkwa nso na mbara igwe (O₂bụ 0.28nm, N₂bụ 0.3nm). N'ihi na ha yiri nke ahụ Njirimara, e nwere obere ihe dị iche n'etiti ha na elu nke carbon molekụla myọ. Ya mere, site na echiche nke thermodynamics (njirisi absorption), ikuku carbon molecular enweghị nhọrọ maka N₂na O₂adsorption, ya mere o siri ike ikewapụ ha.

Otú ọ dị, site n'echiche nke kinetic, n'ihi na carbon molekul sieve bụ a ọnụego nkewa adsorbent, mgbasa mgbasa ọsọ nke N₂na O₂na micropores nke carbon molekụla sieve doro anya dị iche iche. Dịka ọmụmaatụ, na 35 ℃, ọsọ mgbasa nke O₂bụ 2.0 × 106, na ọsọ nke O₂dị okpukpu iri atọ karịa nke N₂. Ya mere, mgbe ikuku kọntaktị carbon molekụla myọ, O₂a ga-aka mma adsorbed na carbon molekụla myọ na kewapụrụ site n'ikuku,ssị na N₂na ikuku nwere ike ọcha. Ebe usoro mgbasa ozi adsorption bụ usoro njikwa ọnụego, njikwa oge adsorption (ya bụ, njikwa adsorption)--desorption cycle) dị ezigbo mkpa. Mgbe edozi onyonyo ahụ, nrụgide adsorption na gas na-agba ọsọ, edozi oge adsorption kwesịrị ekwesị nwere ike kpebisie ike site na ịlele usoro ọganihu nke kọlụm adsorption.