Pressure Swing Adsorption e sebetsa joang?
Ha u iketsetsa nitrogen ea hau, ho bohlokoa ho tseba le ho utloisisa boemo ba bohloeki boo u batlang ho bo fihlela. Likopo tse ling li hloka maemo a tlase a bohloeki (pakeng tsa 90 le 99%), joalo ka theko ea mabili le thibelo ea mollo, athe tse ling, joalo ka likopo tsa indasteri ea lijo le lino kapa ho bopa polasetiki, li hloka maemo a holimo (ho tloha ho 97 ho isa ho 99.999%). Maemong ana theknoloji ea PSA ke tsela e nepahetseng le e bonolo ka ho fetisisa ea ho tsamaea.
Ha e le hantle jenereithara ea naetrojene e sebetsa ka ho arola limolek'hule tsa naetrojene ho limolek'hule tsa oksijene ka har'a moea o hatelitsoeng. Pressure Swing Adsorption e etsa sena ka ho hula oksijene ho tsoa moeeng o hatelitsoeng ka ho sebelisa adsorption. Adsorption e etsahala ha limolek'hule li itlama ho adsorbent, tabeng ena limolek'hule tsa oksijene li hokela ho sieve ea carbon molecular (CMS). Sena se etsahala ka likepe tse peli tse arohaneng tsa khatello, e 'ngoe le e' ngoe e tletse CMS, e fetohang pakeng tsa ts'ebetso ea karohano le ts'ebetso ea ho nchafatsa. Hajoale, a re ba bitseng tora A le tora ea B.
Ha u qala, moea o hatelitsoeng o hloekileng le o omileng o kena tora ea A 'me kaha limolek'hule tsa oksijene li nyane ho feta limolek'hule tsa naetrojene, li tla kena likoti tsa carbon sieve. Ka lehlakoreng le leng, limolek'hule tsa naetrojene ha li khone ho kena ka har'a li-pores kahoo li tla qoba sieve ea carbon molecular. Ka lebaka leo, u qetella u e-na le naetrojene ea bohloeki bo lakatsehang. Karolo ena e bitsoa adsorption kapa karohano.
Leha ho le joalo, ha e felle moo. Boholo ba naetrojene e hlahisoang tora ea A e tsoa ka har'a sistimi (e loketse ho sebelisoa kapa ho bolokoa ka kotloloho), ha karolo e nyane ea naetrojene e hlahisoang e fofela tora ea B ka lehlakoreng le fapaneng (ho tloha holimo ho ea tlase). Phallo ena e hlokeha ho sutumelletsa oksijene e neng e hapiloe karolong e fetileng ea adsorption ea tora ea B. Ka ho lokolla khatello ea tora ea B, li-sieve tsa carbon molecular li lahleheloa ke matla a tsona a ho tšoara limolek'hule tsa oksijene. Li tla ikhula ka har'a li-sieve 'me li tlosoe ka mokelikeli ke phallo e nyenyane ea naetrojene e tsoang tora ea A. Ka ho etsa joalo tsamaiso e etsa sebaka sa hore limolek'hule tse ncha tsa oksijene li khomarele li-sieve karolong e latelang ea adsorption. Re bitsa ts'ebetso ena ea ho 'hloekisa' ho nchafatsa tora e tletseng oksijene.
Taba ea pele, tanka A e mokhahlelong oa adsorption ha tanka ea B e ntse e nchafala. Mokhahlelong oa bobeli lijana ka bobeli li lekana khatello ea ho itokisetsa switjha. Kamora ho chencha, tanka A e qala ho inchafatsa ha tanka ea B e hlahisa naetrojene.
Nakong ena, khatello ea litora ka bobeli e tla lekana 'me e tla fetola mekhahlelo ho tloha ho adsorbing ho ea ho tsosolosoa le ka tsela e fapaneng. CMS e tora ea A e tla tlala, ha tora ea B, ka lebaka la khatello ea maikutlo, e tla khona ho qala ts'ebetso ea adsorption hape. Ts'ebetso ena e boetse e bitsoa 'swing of pressure' , e bolelang hore e lumella likhase tse itseng hore li tšoaroe ka khatello e phahameng 'me li lokolloe ka khatello e tlaase. Sistimi ea litora tse peli tsa PSA e lumella tlhahiso e tsoelang pele ea naetrojene maemong a hloekileng a lakatsehang.
Nako ea poso: Nov-25-2021