Iseli Intembelo yakhe emangalisayo ibeka imiceli mngeni yokuqhekeka kwayo okusebenzayo, kubaluleke kakhulu kwizicelo ezinje ngolawulo lwe-biofuel kunye nolawulo lwenkunkuma. I-Hydrogen Peroxide (H2O2) ivele njengomgqatswa wokupheliswa kweselfowuni ngenxa yendalo engqongileyo yendalo kunye ne-oxiding.
Intshayelelo:
I-sellyulose, i-polysaccharide edityaniswe ngeeyunithi zeglucose ezidityaniswe yi-β-1,4-Glycosidic, yeyona nto iphambili yolwakhiwo kwiindonga zeseli. Intabalala yayo kwi-biomass iyenza isixhobo esithandekayo kumashishini ahlukeneyo, kubandakanya nePhepha kunye nePub, izibalo, kunye ne-bieoenergy. Nangona kunjalo, inethiwekhi ye-hydrogen ye-hydrogen ye-hydrogen ye-thydrogen ngaphakathi kwe-selsersils ye-sellulose igqiba ukuchitheka kwiinyibilikisi ezininzi, ukutshintsha imiceli mngeni yokusetyenziswa ngokufanelekileyo nangokurisayikilisha.
Iindlela zendabuko zokupheliswa kwe-selselose zibandakanya iimeko ezinobunzima, ezinje ngee-acids ze-acids okanye ulwelo lwe-Ionic, ezihlala zinxulunyaniswa nenkxalabo yendalo esingqongileyo kunye nokusebenzisa amandla aphezulu. Ngokwahlukileyo, i-Hydrogen Peroxide ibonelela ngenye indlela ethembisayo ngenxa yokuthoba indalo yayo ethambileyo kunye nokusebenza kwendawo yokuhlala okusingqongileyo. Eli phepha lidla ngokweendlela ezisisiseko se-hydrogen peroxide-mekered yokuphelisa ukuxhatshazwa kweeselula kwaye ihlole ukusebenza ngempumelelo kunye nezicelo ezifanelekileyo.
Iindlela zokupheliswa kwe-seluplose yi-hydrogen peroxide:
Ukuchithwa kwe-sellfroge yiPeroxide ibandakanya ukwenziwa kweekhemikhali zekhemikhali, ngokuyintloko icocekile ye-Glycosidic Bonds kunye nokuphazamiseka kwe-neydrogen ye-hydrogen ye-hydrogen. Inkqubo ihlala iqhubeka ngezo nyathelo zilandelayo:
I-oxidation yamaqela e-hydroxyl: I-Hydrogen Peroxide i-Hydroxyl Amaqela e-Hydroxyl, ekhokelela ekumiselweni kwe-Hydroxyl radicals Ezi radicals zihlasela i-Glycosidic Bonds, ukuqalisa i-Criin Screnish kwaye ivelise iziqwenga ezimfutshane zeselfowuni.
Ukuphazamiseka kwe-hydrogen bound: I-Hydroxyl radicals nayo yaphazamisa i-hydrogen ye-hydrogen ye-hydrogen ye-hydrogen ye-hydrogen ephakathi kwamakhonkco aselfowuni, ukuba senze isakhiwo sonke kunye nokwenza lula isisombululo.
Ukuqulunqwa kwezinto eziguqulweyo ezinyibilikisiweyo: Ukonakaliswa kwe-oxidage Iziphumo iziphumo Iziphumo eziphakathi eziphakathi, ezinjenge-carboxylic acids, ama-Aldeyesdes, naseKetones. Ezi zinto zilahlekileyo zinegalelo kwinkqubo yokuchitheka ngokukhulisa ukugcwaliswa kokuzahlula kunye nokunciphisa i-viscofity.
Ukugxothwa kunye nokuqhekeka: Ukuqhekeka kwe-oxidation kunye neendlela zokucoca i-Cleavical kukhokelela kwi-depolymering ye-selsulose yeendlela ezimfutshane zo-oligors okanye ezinye iimveliso zemolekyuli eziphantsi.
Izinto ezichaphazela i-hydrogen peroxide-mekered yokuphelisa i-selupide
Ukusebenza kakuhle kwe-SeleXose Talsetion usebenzisa i-Hydrogen Peroxide kuphenjelelwa zizinto ezahlukeneyo, kubandakanya:
Ukugxininiswa kwe-Hydrogen Peroxide: Ukugxininiswa okuphezulu kwe-Hydrogen Peroxide kubandakanya amaxabiso okuphendula ngokukhawuleza kunye nokuphelisa ukuphefumla okukhulu kweselfowuni. Nangona kunjalo, uxinzelelo oluphezulu kakhulu lunokukhokelela ekuphenduleni kwecala okanye ekungafunekiyo ziimveliso.
I-PH kunye neqondo lokushisa: I-PH ye-PHEAPE inefuthe eziphembelela isizukulwana se-radicals ye-hydroxyl kunye nokuzinza kwe-selsulose derivetives. Iimeko ze-acidi eziphakathi (PH 3-5) zihlala zikhethwa ukomeleza ukulimala kwesellulose ngaphandle kokhutshiwe. Ukongeza, ubushushu buchaphazela i-kinetics yokuphendula, ngamaqondo obushushu aphezulu akhawulezisa inkqubo yokuphelisa.
Ubukho be-catalystys: i-ion yentsimbi efana ne-Iron okanye ngobhedu, inokuthatha isigqibo se-hydrogen peroxide kwaye iphucule ukwenziwa kwe-radicals ye-hydroxyl. Nangona kunjalo, ukhetho lwenkuthalo kunye noxinzelelo lwayo kufuneka lubelwe ngononophelo ukunciphisa impahla yecala kwaye uqinisekise umgangatho wemveliso.
I-seluplose morphology kunye ne-crystallity: Ukufikeleleka kweendlela zeselfowuni kwi-Hydrogen Peroxide kunye ne-Hydroxyl radicals ichukunyiswe yi-morphology ye-morphology kunye nesakhiwo se-crystalline. Iindawo ze-amorngos zichaphazeleka kakhulu ekutyibilikeni kunezimimandla ezikristali, ekunyanzeleni ukuba kutshintshwe okanye iindlela zokuguqula ukuphucula ukufikeleleka.
Izibonelelo kunye nokuSebenza kweHydrogen Peroxide kwi-SeleXolose Dalting:
I-Hydrogen Peroxide ibonelela ngeenzuzo ezininzi zokuyitshiswa i-selselose xa kuthelekiswa neendlela eziqhelekileyo:
Ukungangqinelani kokusingqongileyo: Ngokungafaniyo neekhemikhali ezinobungozi ezinje nge-sulfuric acid okanye izinyibilikisi ze-chlorigen, i-Hydrogen Peroxide yi-Bydrogen i-geroxide i-bign kwaye ibolile emanzini naseoksijini phantsi kweemeko ezithambileyo. Esi simo sengqondo esinobuhlobo esisingqongileyo senza ilungele ukulungiswa okuzinzileyo seselsulose kunye nokulungiswa kwenkunkuma.
Iimeko zokuphendula ezisaleleyo: I-Hydrogen Poroxide-I-Plaresed Pelllose Dactions inokwenziwa phantsi kweemeko ezinobushushu kunye noxinzelelo, ukunciphisa ukusetyenziswa kwamandla kunye neendleko zokusebenza xa kuthelekiswa ne-Ionic hydrolysis okanye unyango olunamanzi amaninzi.
Ukukhetha i-oxidation: I-Contaidation ye-oxidative ye-Glycosidic Bydrogen Peroxide inokulawulwa ukuya kuthi ga kwinqanaba, ivumela ukulungiswa okukhethiweyo kwimixokelelwane yeselula kunye nemveliso elungiselelwe impahla elungiselelwe impahla elungelelanisiweyo.
Versatile Applications: The soluble cellulose derivatives obtained from hydrogen peroxide-mediated dissolution have potential applications in various fields, including biofuel production, functional materials, biomedical devices, and wastewater treatment.
Imiceli mngeni kunye nezikhokelo ezizayo:
Ngaphandle kweempawu ezithembisayo, i-Hydrogen Poroxide-Mediaged Playsetion ijongene nemiceli mngeni emininzi kunye neendawo zokuphucula:
Ukukhetha kunye nokukhetha isivuno: ukufezekisa izivuno eziphakamileyo ze-solulose delivetives ezinamacala amancinci kuhlala kungumceli mngeni, ngakumbi ukuba i-bigstos ye-bigstocks enesisu kunye ne-hemicellulose.
Ukudityaniswa kunye nokudityaniswa kwenkqubo: Ukuphelisa i-Hydrogen Peroxide-I-Shorupese Peoseide-I-Shoruplose ye-Shorupide ifuna ukuqwalaselwa ngononophelo koyilo lwe-Reactor, ukusombulula iSolvent, kunye nokuzinza kwezendalo.
I-Cataightst yophuhliso: Uyilo lwee-catalys ezisebenzayo ze-Hydrogen Peroxide kunye ne-Seleulose Oxibetion ibalulekile ekuphuculeni amaxabiso okwenza izinto kunye nokukhetha ngelixa unciphisa i-cataing kunye nemveliso yemveliso.
Ukuqulunqwa kwe-valor yemveliso: Izicwangciso zobukroti iimveliso eziveliswe ngexesha lokuchithwa kwe-hydrogen peraside, ezinjenge-carboxylic acids okanye i-oligyyric acids okanye i-Oligameric ye-Olboxlic yenkqubo.
I-Hydrogen Peroxide inesithembiso esibalulekileyo njengesinyibilikisi esiluhlaza kwaye sinikezela ngezixhobo ezifana nokuchitheka okunjengokuhambelana kokusingqongileyo, iimeko zokwenzakala, kunye nokukhetha i-oxidation. Ngaphandle kwemiceli mngeni eqhubekayo, kuqhubeka ukuqhubeka nenzame zophando ezijolise ekuphumeni kweendlela ezisisiseko, zokuqhuba iiparamitha zokuphendula, kunye nokuhlola iinkqubo ezisekwe kwi-Hydrogen Peroxide ye-veroxic yokwazisa i-valoris.
IXESHA LOKUQALA: APR-10 ukuya kwi-1024