Uhlolojikelele lwe-alumina ecushiwe
I-alumina ecushiwe, eyaziwa nangokuthi i-bauxite ecushiwe, ibizwa nge-alumina ecushiwe ngesiNgisi. I-alumina esetshenziswa kuma-catalyst ngokuvamile ibizwa ngokuthi “i-alumina ecushiwe”. Kuyimpahla eqinile enezimbotshana, ehlakazeke kakhulu enendawo enkulu. Ubuso bayo be-microporous bunezici ezidingekayo ukuze kusetshenziswe i-catalysis, njengokusebenza kwe-adsorption, umsebenzi ongaphezulu, ukuzinza okuhle kakhulu kokushisa, njll., ngakho-ke isetshenziswa kabanzi njenge-catalyst ne-catalyst carrier yokusabela kwamakhemikhali.
I-alumina pressure swing oil adsorbent eyindilinga eyenziwe yasebenza iyizinhlayiya ezinezimbotshana eziyisiyingi ezimhlophe. I-alumina ecushiwe inosayizi wezinhlayiyana ezifanayo, indawo ebushelelezi, amandla aphezulu emishini, i-hygroscopicity eqinile, ayivuvukali futhi iqhekeke ngemva kokumuncwa kwamanzi, futhi ihlala ingashintshile. Ayinabuthi, ayinaphunga, futhi ayincibiliki emanzini ne-ethanol.
I-Alumina
Ayincibiliki emanzini futhi ingancibilika kancane ku-concentrate sulfuric acid. Ingasetshenziselwa ukucwenga i-aluminiyamu yensimbi futhi iphinde ibe yimpahla eluhlaza yokwenza ama-crucibles, i-porcelain, izinto eziphikisayo namatshe ayigugu okwenziwa.
I-alumina esetshenziswa njenge-adsorbent, i-catalyst kanye ne-catalyst carrier ibizwa ngokuthi "i-alumina ecushiwe". Inezici ze-porosity, ukuhlakazeka okuphezulu kanye nendawo enkulu yendawo ethile. Isetshenziswa kabanzi ekwelashweni kwamanzi, kwe-petrochemical, amakhemikhali amahle, amasimu webhayoloji kanye nemithi.
Izici ze-alumina
1. Indawo ethize enkulu: i-alumina ecushiwe inendawo ethize ephezulu. Ngokulawula ngokunengqondo uhlelo lokucwilisa lwe-alumina, i-alumina ecushiwe enendawo ethile ephakeme njengo-360m2/G ingalungiswa. I-alumina ecushiwe elungiselelwe kusetshenziswa i-colloidal aluminium hydroxide eboliswe yi-NaAlO2 njengoba impahla eluhlaza inosayizi omncane kakhulu wembotshana kanye nendawo ethile ephezulu efinyelela ku-600m2 / g.
2. Isakhiwo sosayizi wembotshana olungisekayo: Ngokuvamile, imikhiqizo enosayizi wembotshana ephakathi ingalungiswa ngokubhaka nge-aluminium hydroxide ehlanzekile. Imikhiqizo emincane yezimbotshana ingalungiswa ngokulungiselela i-alumina ecushiwe ngeglue ye-aluminium, njll. kuyilapho i-alumina enkulu yembotshana ecushiwe ingalungiswa ngokungeza ezinye izinto eziphilayo, njenge-ethylene glycol ne-fiber, ngemva kokusha.
3. Ubuso bune-asidi futhi bunokuqina okuhle kokushisa.
Umsebenzi we-alumina ocushiwe
I-alumina ecushiwe ingeyesigaba se-alumina yamakhemikhali, esetshenziswa kakhulu njenge-adsorbent, isihlanzi samanzi, i-catalyst nesithwali se-catalyst. I-alumina ecushiwe inamandla okukhangisa ngokukhetha amanzi kugesi, umhwamuko nolunye uketshezi. Ngemuva kokuthi i-adsorption isigcwele, ingashiswa cishe ku-175-315. D vuma. I-Adsorption kanye nokwenza kusebenze kabusha kungenziwa izikhathi eziningi.
Ngaphezu kokusetshenziswa njenge-desiccant, ingakwazi futhi ukudonsa umhwamuko kawoyela ogcobayo ovela ku-oksijeni engcolile, i-hydrogen, i-carbon dioxide, igesi yemvelo, njll. Futhi ingasetshenziswa njenge-catalyst ne-catalyst support kanye nokusekela ukuhlaziywa kwe-chromatographic.
Ingasetshenziswa njenge-ejenti yokuqeda amanzi emanzini okuphuza e-fluorine ephezulu (anamandla amakhulu e-defluorinating), i-ejenti ye-defluorinating yokujikeleza ama-alkanes ekukhiqizeni i-alkylbenzene, i-ejenti eqeda acid futhi ivuselela uwoyela we-transformer, i-ejenti yokomisa igesi embonini yokwenza umoya-mpilo. , imboni yendwangu kanye nemboni ye-elekthronikhi, i-ejenti yokomisa yomoya wezinsimbi ezizenzakalelayo, ne-ejenti yokomisa kanye ne-ejenti yokuhlanza kumanyolo wamakhemikhali, ukomisa i-petrochemical nezinye izimboni.
Isikhathi sokuthumela: Jun-01-2022
