I-Ultrasound-Enhanced Mineral Carbonation

I-mineral carbonation yindlela yokusabela ngayo i-carbon dioxide ngamaminerali alkaline afana ne-calcium noma i-magnesium oxide. I-mineral carbonation isetshenziselwa ukukhiqizwa kwezimboni zezinhlayiya eziqinile embonini yezokwelapha, i-polymeri kanye nomanyolo kanye ne-carbon dioxide sequestration ezakhiweni zamakhemikhali. Ukwelashwa kwamagciwane ngamandla ultrasound kuye kwatholakala izindlela eziphumelelayo zenqubo yokwenza ngcono okubangelwa ukuguquguquka okuphezulu kwe-carbonation kanye nesivinini esisheshayo sokusabela.

I-Mineral Carbonation: Inqubo nokulinganiselwa

Ukuze i-carbonation, izinto zemvelo nezinkunkuma zikhonjiswa ngenxa yobuningi be-alkali oxide, ama-hydroxy noma ama-silicates ekubunjweni kwawo. Inqubo ye-carbonation inezinyathelo ezilandelayo zokuphendula:

I-carbonation yamaminerali ihlanganisa izinyathelo ezingu-5: Ukusinda - Ukuphendula - Ukushisa - Ionization - Ukukhuphuka

Izinyathelo ze-carbonation carbonation

Ngenxa yokusabela kwe-carbonation, izinhlayiya kufanele zitholakale kuma-reagents. Lokhu kusho ukuthi inhlayiya ephezulu ayikho izinhlaka ezingezansi ezidingekayo ukuze kuthuthukiswe inqubo ye-carbonation.
Ukwakhiwa kwesendlalelo esivimba kakhulu nesinyene se-carbonate esizungeze umgogodla owehlayo wezinhlayiya eziqinile udala izinyathelo ezintathu zokulinganisa:

  • hydration of oxides / silicates;
  • i-leaching of cations; futhi
  • ukusakaza endaweni yokuphendula.

Ukuthuthukisa inqubo ye-carbonation, lezi zimingcele kufanele zinqobe ngenqubo yokusiza ezobuchwepheshe. Amandla amakhulu e-ultrasound asetshenziswe ngempumelelo njengendlela yentuthuko yekhnoloji yokuqinisa ikhono lokuthuthukisa isilinganiso se-carbonation nesivinini sokuphendula.

Isixazululo: Ultrasonic Carbonation

Iqembu lokucwaninga leKatholieke Universiteit Leuven eBelgium, “i-ultrasound iye yafakazelwa ukuthi iyithuluzi eliwusizo lokuthuthukisa izinqubo zamaminerali carbonation. Ngenxa yokuxuba okuthuthukisiwe, ukuhlukaniswa kwezinhlayiyana kanye nokukhishwa kwezingxenye ze-calcium carbonate ezikhungethweyo kwakungenzeka ukusheshisa ama-kinetics okuphendulayo futhi kufinyelele izinga elikhulu le-carbonation ngezikhathi ezimfushane. Ngaphezu kwalokho, kuhlanganiswe ne-magnesium ions ekuxazululeni, i-ultrasound yenza ngcono ukuhlanganiswa kwamakhekhedi e-aragonite, kokubili ngokunciphisa ukujula okudingekayo kwe-magnesium nokunciphisa izinga lokushisa lokuziphendulela ukuze kube nemibandela emincane.”
[Santos et al. 2011, p.114]

Izinzuzo shazi:

  • i-particle size usayizi wokusabalalisa ngokuhlanganiswa kwe-ultrasonic, i-deagglomeration & Ukukhokha
  • i-ultrasound isusa izendlalelo ezingezansi
  • i-ultrasound ithuthukisa ukusabela kinetics
  • i-ultrasound inciphisa ubuyisisekelo
  • Inqubo ye-ultrasonic iqinisa: isivuno esiphezulu, ukusabela okusheshayo
I-Santos et al. 2013 - i-ultrasound-eyakhiwe nge-carbonal carbonation

Imiphumela ye-Ultrasonic ku-carbonation yamaminerali. [Santos et al. 2013]

I-ultrasonic i-particle ihlakazeka futhi ihlukana ngamalebhu nakwezinga lezimboni

I-Ultrasonicator UP200S ngoba
Ukwelapha kwe-particle ultrasonic

Xhumana Nathi / Cela Ukwaziswa Olwengeziwe

Khuluma nathi mayelana nezidingo zakho zokucubungula. Sizosikisela ukusetha nokulungiswa kwemingcele efanele yephrojekthi yakho.





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Ukwelapha kwe-particle ultrasonic

I-Sonication iyithuluzi elinamandla lokuphatha ama-slurries. Amandla amakhulu e-ultrasonic enza ukudlidliza kwamakhamera kanye ne-cavitation eqinile kunoketshezi. Lezi zindlela zokucindezeleka eziphezulu zingaphazamisa izilonda ngisho nezinhlayiya eziyinhloko, ukuze i-ultra-power / low-frequency ultrasound ibe yindlela enokwethenjelwa Ukukhokha, i-deagglomeration futhi Ukuhlakazeka izicelo.

I-Santos et al. 2012 Synthesis of aragonite ehlanzekile yi-sonochemical carbonation carbonation

Izithombe ze-SEM ze-calcium oxide ekuqaleni (a) nangemuva kwemizuzu engu-10 ye-sonication (b). [Santos et al. 2012]

Ukugaya kwe-ultrasonic ngesikhathi senqubo ye-carbonation slurries kwakha izinhlayiya ezincane ezinezindawo ezinkulu zomhlaba. Ngaphandle kokuhlakazeka kwezinhlayiya, i-sonication iphinda isuse okufakwayo kungaphezulu kobunhlayiyana, njengamagobolondo ekhabhoni noma izingqimba ze-matrix eziphelile ezizungeze umgogodla wezinhlayiya ezingafinyeleleki. Ngokususa izingqimba ezifiphalisayo, imikhawulo yokufakelwa iyancishiswa bese impahla engatholakali ivezwa esigabeni samanzi. Ngaleyo ndlela, i-sonication ingakhuphula ukuguqulwa kwe-carbonation kanye nenqubo ye-kinetics - kuholele ezithelweni eziphakeme kanye nokusabela okusheshayo.

I-Santos et al. 2011 Imizila yokuqiniswa kwe-carbonation yamaminerali

Imiphumela ye-Ultrasonic kuzinhlayiya [Santos et al. 2011]

Ipropress Ultrasonic ye-Industrial Power Power UIP16000 yezinqubo ezidinga (Chofoza ukuze ukhulise!)

I-UIP16000 - I-Ultrasonic Inamandla Kakhulu Isisindo Esiqinile-Ultrasonicator UIP16000 (16kW)

Izincwadi / Izinkomba

  1. I-Santos, uRafael M .; UFrancois, uDavy; UMertens, uGilles; U-Elsen, uJan; UVan Gerven, uTom (2013): I-ultrasound-eyakhiwe nge-carbonal carbonation. Ukusetshenziswa kwe-Engineering Engineering Vol. 57, Issues 1-2, 2013. 154-163.
  2. I-Santos, uRafael M .; Ceulemans, Pieter; Van Gerven, Tom (2012): Ukuhlanganiswa kwe-aragonite ehlanzekile yi-sonochemical carbonation carbonation. Ucwaningo lwezobunjiniyela bezobuchwepheshe & Idizayini, 90/6, 2012. 715-725.
  3. I-Santos, uRafael M .; Ceulemans, Pieter; UFrancois, uDavy; UVan Gerven, uTom (2011): I-Ultrasound-Enhanced Mineral Carbonation. IChemE 2011.

Xhumana Nathi / Cela Ukwaziswa Olwengeziwe

Khuluma nathi mayelana nezidingo zakho zokucubungula. Sizosikisela ukusetha nokulungiswa kwemingcele efanele yephrojekthi yakho.





Sicela uqaphele wethu Inqubomgomo yobumfihlo.




I-Carbonation Feedstock

I-feedstock ye-carbonation ingaba njalo intombi noma imfucuza izinto. I-feedpiece ejwayelekile yamaphilisi okusetshenziselwa ukukhishwa kwe-carbon ihlanganisa amaminerali afana ne-olivine (Mg, Fe)2SiO4, inyoka (Mg, Fe) 3Si2O5(OH)4, ne-wollastonite CaSiO3.
Izinto zokudoba zihlanganisa ama-slags ensimbi, i-gypsum ebomvu, umlotha odoti, imfucumfucu yamagayipi, uthuli lwesilongwe, kanye nokudoba kwemayini. Lezi zinto ezikhiqizwa yizimboni kanye nemfucuza zingasetshenziselwa ukwenziwa kwe-carbonation ngenxa yobukhona bama-alkali oxide, ama-hydroxide noma ama-silicates ekubunjweni kwawo.