Shaandho alumina iyo molecular ah oo firfircoon, waxay u egyihiin kuwo isku mid ah (labaduba waxay ku yimaadaan qaab yar oo wareegsan oo ku wareegsan), waxay sameeyaan isla habka (waxay nuugaan walxaha heer molecular ah), labaduba waxay leeyihiin sifooyin dib u soo kabasho ah (waxaad dib u isticmaali kartaa walxaha marka qallajiyuhu gaaro awoodda) haddana waa laba badeecood oo gebi ahaanba kala duwan. Markaa su'aashu waxay tahay, iyadoo ay jiraan waxyaabo badan oo isku mid ah, sidee bay u kala duwan yihiin?
Waxa laga sameeyay waa bar bilow wanaagsan. Alumina-da firfircoon waxaa laga sameeyay aluminium oksaydh oo aad u daloolsan, halka shaandhada molecular-ka laga sameeyay aluminium-silicates bir ah oo crystalline ah. Tani waxay ka dhigan tahay in daloolada shaandhada molecular-ka loo qaabeyn karo cabbirro gaar ah oo inta badan loo arko 3A, 4A, 5A, iyo 13X, halkaasoo daloolada alumina-da firfircoon aysan lahayn cabbirro si gaar ah loo cabbiray. Tani waxay ka dhigan tahay in shaandhada molecular-ka loo isticmaali karo in lagu kala saaro molecules gaar ah oo cabbirro gaar ah leh, tusaale ahaan ka saarista ammonia durdurrada gaaska dabiiciga ah.
Marka laga eego dhinaca codsiga, waa kan sida ay u kala duwan yihiin. Alumina-da firfircoon waxay leedahay awood nuugid biyo oo xooggan, waxay nuugi kartaa biyo aad uga badan shaandhada molecular-ka, tani waxay ka dhigaysaa walxo aad waxtar u leh kombaresarada hawada ama codsiyada qaarkood ee gaaska dabiiciga ah. Adkeysiga walaxda ayaa u oggolaanaya inay u adkaysato cadaadis badan oo ay weheliso heerarka sare ee qoyaanka.
Alumina-da firfircoon ma nuugi karto noocyada kala duwan ee walxaha ama ma kala saari karto molecules gaar ah midba midka kale sida shaandhada molecular-ka, taasoo ka dhigaysa mid aan waxtar lahayn habka sida fuuq-baxa ethanol. Tani waa sababta oo ah alumina-da firfircoon waxay awoodi doontaa inay nuugto ethanol-ka iyo molecules-ka biyaha labadaba sidaas darteedna ma dhici doonto kala-goyn.
Shaandhada molecular-ka waxaa laga yaabaa inaysan awoodin inay nuugto biyo badan laakiin haddii aad u baahan tahay inaad biyaha hoos u dhigto ilaa 0.1ppm, shaandhada molecular-ka ayaa noqon doonta waxa aad doorato sababtoo ah tani waa wax nuugayaasha kale marka laga reebo shaandhada molecular-ka aysan awoodin inay sameeyaan.
Shaandhada molecular-ka ayaa sidoo kale loo isticmaali karaa in lagu kala saaro molecules gaar ah midba midka kale, sababtoo ah habaynta cabbirkooda daloolka. Tusaale ahaan waxaad kala saari kartaa biyaha ethanol, iyo kaarboon laba ogsaydh, ammonia, iyo hydrocarbons waaweyn oo ka imanaya durdurrada gaaska dabiiciga ah, taas oo ah wax alumina firfircoon aysan samayn karin, ama aysan ku samayn doonin isla waxtarkaas.
Waqtiga boostada: Agoosto-05-2019