I-Ethylene glycol (EG), ikhemikhali yembombo kwimveliso ye-polyester, i-antifreeze formulations, kunye ne-resin ye-industrial, ibona uphuhliso loguquko oluqhutywa yimimiselo yokuzinza kunye nokuqhubela phambili kwezobuchwepheshe. Iinguqulelo zakutsha nje kwiindlela zokuvelisa, uhlaziyo lolawulo, kunye nokusetyenziswa kwenoveli kuhlengahlengisa indima yayo kwicandelo lemichiza yehlabathi.
1. Uhlaza lweSinthesi yokuPhumelela
Impumelelo kwitekhnoloji yokuguqula i-catalytic iguqula imveliso ye-ethylene glycol. Abaphandi baseAsia baye baphuhlisa inoveli i-catalyst esekwe ngobhedu eguqula i-syngas (umxube we-hydrogen kunye ne-carbon monoxide) ngokuthe ngqo kwi-ethylene glycol kunye ne-95% yokukhetha, ukudlula i-ethylene oxide yendabuko. Le ndlela inciphisa ukusetyenziswa kwamandla nge-30% kwaye iyancipha ukukhutshwa kwe-CO₂ ngeetoni ze-1.2 ngetoni nganye ye-EG eveliswayo.
Inkqubo, ngoku ekuvavanyo lokulinga, ihambelana neenjongo ze-decarbonization yehlabathi kwaye inokuphazamisa iindlela eziqhelekileyo zemveliso ezixhomekeke kwifosili. Ukuba i-scaled, inokwenza izityalo ze-ethylene glycol zidibanise ngokungenamthungo kunye neenkqubo zokubamba i-carbon, ukubeka i-EG njengento enokubakho "ikhemikhali eluhlaza" kwiisetyhula zokubonelela ngeesetyhula.
2. I-Bio-Based Ethylene Glycol Izuza ukutsalwa
Phakathi kokunyuka kwemfuno yezinto ezizinzileyo, i-bio-based ethylene glycol ephuma kummoba okanye isitashi sombona sivela njengenye indlela esebenzayo. Inyathelo lamva nje elihlangeneyo eMzantsi Melika libonise ukubanakho ukuvundiswa kwenkunkuma yezolimo kwimonoethylene glycol (MEG) enekhabhoni esezantsi ngama-40% kuneelingana nepetroleum.
Umzi-mveliso wamalaphu, oyena mthengi uphambili we-EG, uvavanya i-bio-MEG kwimveliso yefiber yepolyester, eneziphumo zangaphambili ezibonisa ukomelela okuthelekisayo kunye nokudibana kwedayi. Iinkuthazo zolawulo, ezifana ne-EU's Renewable Carbon Initiative, ziyakukhawulezisa ukwamkelwa komntwana, nangona imiceli mngeni malunga nokunyuka kwe-feedstock kunye nokulingana kweendleko kusaqhubeka.
3. UHlolo loLawulo kwi-EG Recycling
Iinkxalabo ezikhulayo malunga nokuqhubekayo kwe-ethylene glycol kubangele imimiselo engqongqo. Ngo-Okthobha wama-2023, i-US EPA indulule izikhokelo ezihlaziyiweyo zokukhutshwa kwamanzi amdaka aqulathe i-EG, eyalela iinkqubo ze-oxidation eziphucukileyo zokwehlisa umgangatho we-residual glycols ngaphantsi kwe-50 ppm. Ngaxeshanye, i-European Union iqulunqa uhlaziyo kwisakhelo sayo soBhaliso, uVavanyo, uGunyaziso, kunye noThintelo lweMichiza (REACH), efuna abavelisi bangenise idatha yetyhefu ye-EG byproducts ngo-2025.
La manyathelo ajolise ekujonganeni nemingcipheko yendalo, ngokukodwa kwi-ecosystems yasemanzini, apho ukuqokelelwa kwe-EG kuye kwadityaniswa nokuncipha kweoksijini kwimizila yamanzi.
4. Izicelo zeNoveli kuGcino lwaMandla
I-Ethylene glycol ifumana uncedo olungalindelekanga kwiinkqubo zokugcina amandla kwisizukulwana esilandelayo. I-consortium yophando eYurophu yenze i-coolant yebhethri engatshangayo isebenzisa umxube wamanzi we-EG oguquliweyo, ukwandisa ulawulo lwe-thermal kwiibhetri ze-lithium-ion nge-25%. Ukuqulunqwa, okusebenza ngokufanelekileyo kwi-40 ° C ukuya kwi-150 ° C, kuvavanywa kwiiprototypes zemoto yombane kunye neeyunithi zokugcina igridi.
Ukongezelela, izixhobo ezisekelwe kwi-EG-based phase-change (PCMs) zifumana ingqalelo yokugcina amandla elanga ashushu, kunye neemvavanyo zamva nje ezifezekisa i-92% yokugcinwa kwamandla ngokufanelekileyo kwimijikelezo ye-500.
5. UkuZinziswa kweKhonkco loNikezelo kunye neeShift zeNgingqi
Uxinzelelo lwe-geopolitical kunye ne-logistics bottlenecks ikhuthaze ummandla wemveliso ye-ethylene glycol. Amaziko amatsha kuMbindi Mpuma nakuMzantsi-mpuma we-Asia amkela iimodyuli, iiyunithi zemveliso ezincinci ezilungiselelwe ukufumaneka kwesondlo sendawo, ukunciphisa ukuthembela kwizityalo ezingundoqo. Olu tshintsho luncediswa ziinkqubo zolawulo lwe-inventri eziqhutywa yi-AI ezinciphisa inkunkuma ye-EG kumacandelo asezantsi afana nokwenziwa kweebhotile ze-PET.
Isiphelo: Ukuzivelela kwezinto ezininzi
Icandelo le-ethylene glycol limi ekudibaneni kweendlela, lilungelelanisa usetyenziso oluzinzileyo lwemizi-mveliso kunye neemfuno zozinzo olungxamisekileyo. Ukuveliswa kwezinto ezintsha kwi-green synthesis, ezinye iindlela ezisekelwe kwi-bio-based, kunye nezicelo zezoqoqosho ezijikelezayo zichaza ngokutsha ixabiso layo, ngelixa imimiselo engqongqo igxininisa imfuneko yezenzo ezinoxanduva lokusingqongileyo. Njengoko ishishini lemichiza lijonge kwi-decarbonization, ukuguquguquka kwe-ethylene glycol kuya kuqinisekisa ukufaneleka kwayo kwimarike eguqukayo ngokukhawuleza.
Ixesha lokuposa: Apr-07-2025