Tamis moleculaire zeolite defna liggéey bu am solo ci liggéeyum gaz naturel ndax dafay def ay liggéey yu am solo ci setal (lu melni dehydration, desulfurisation, ak decarbonisation ak ñoom seen) jaaraleko ci adsorption buñ tànn, moo tax dafay gëna baaxal kalite gaz naturel bi, ba noppi mëna dem ak dikk ci anam wu wóor.
Gaz naturel
Gaz naturel dafay jaar ci vapër ndox, ba ci yóbbaale yenn ndox mu ndoxe. Ndox mi nekk ci gaz nature bi lu baaxul la, moo tax gaz nature bi dafay ñàkk ndox. Ci misaal:
Ndox ak methane dañuy forme hydrate yu dëgër yu melni glaas suñu nekkee ci tàngoor wu woyof ak pressure bu yéeg (lu melni ci dem ak dikk ci gasoduc wala ci liquefaction), te loolu mën na fatt vanne yi, gasoduc yi ak jumtukaay yi, te loolu mën na tax dem bi ak dikk bi dakkal.
Ndox dafay jaxasoo ak sulfure hydrogène wala gaz carbonique ci gaz nature bi ngir génne ay substance yu asid (asid sulfurique, asid carbonique), loolu mooy gaawal yàqu-yàqu tuyo wen yi ak aparey yi, ba noppi wàññi seen àppu liggéey.
Su gaz naturel bi soxlaa seddal bu xóot, ndax gaz naturel liquéfié (LNG) dafa wara seddal ba -162 degre, guus gi ci des dafay gelé ba noppi yàq jumtukaay yu am solo yu melni weccoo tàngoor cryogenic.
Tamis moleculaire yi, ak seeni pore yu tolloo, ñooy gëna xëcci molecule ndox yi. Kàttan gi ndox mi mëna xëcci mingi yegg ba 22% ci seen poid, te loolu mën na wàññi point de rosée bu gaz nature bi ba ci suufu -70 degre ba noppi indi dehydration bu xóot.
Gaz naturel
Gaz naturel biy suukër mooy dindi sulfur ak dekarbon. Sulfure hydrogène bi ak gaz carbonique bi ci gaz naturel bi mën nañu nekk asid (ak ndox), ba noppi indi corrosion ci tuyo yi ak ci aparey yi. Sulfure hydrogène gaz toxic la itam buy yàq wérgi-yaram ak kaaraange.
Tamis moleculaire dafay dindi sulfure hydrogène ak gaz carbonique ba ci niveau PPM wala sax PPB. Loolu dafay wàññi corrosion, yokk valeur calorifique bi, ba noppi méngoo ak sàrt yiñ tëral ci gaz naturel ci wàllu kalite ak dem ak dikk.
Lu weesu soufre inorganik, tamis moleculaire yi mën nañu xëcci soufre organik yu melni metil merkaptan, etil merkaptan, propil merkaptan, metil sulfure, ak tiofen, lépp ndax seen surface bu yaatu ak seen volume pore.
Tamis moleculaire zeolite pour traitement de gaz naturel
Xeetu tamis moleculaire zeolite 3A: Pore yi 3Å lañu, ñu koy gëna jëfandikoo ngir xëcci molecule ndox yu am diametre buy tollu ci 2.8Å. Mën na dindi guus gi ci gaz naturel bi ba noppi moytu adsorption hydrocarbure yi, moo tax mu baax ci dehydration gaz naturel bi.
Xeetu tamis moleculaire zeolite 4A: Dayo pore bi 4Å la, te mën na xëcci molecule ndox yi (diametre 2.8Å). Dafay tëye kàttan adsorption bu rëy ci tàngoor wu metti, te baaxna ci waw bu xóot ci gaz naturel. Waaye dafay am solo lool ñu xamni mën na xëcci yenn hydrocarbure yu woyof yi.
Xeetu tamis moleculaire zeolite 5A: Dayo pore yi 5Å, te mën nañu ko jëfandikoo ci defar gaz naturel ngir xëcci ndox, hydrocarbure yu woyof, gaz carbonique, sulfure hydrogène, mercure, ak ñoom seen. Ci misaal, dindi tuuti sulfure hydrogène ci njaxasu gaz carbonique ak methane.
Xeetu tamis moleculaire zeolite 13X: Dayo pore bi 10Å la, te amna kàttan gu dëgër ngir xëcci gaz carbonique, mën xëcci bu baax composé sulfure yu melni sulfure hydrogène ak mercaptans, dindi mbalit yu melni hydrocarbures yu diis ak hydrocarbures aromatik LNG.
