Ethylene glycol (EG), imiti y’ibuye mu musaruro wa polyester, imiti igabanya ubukana bwa antifreeze, hamwe n’ibisigisigi by’inganda, irabona iterambere rihinduka riterwa n’ibihe bidashira hamwe n’iterambere ry’ikoranabuhanga. Udushya twa vuba muburyo bwo kubyaza umusaruro, kuvugurura amabwiriza, no gukoresha udushya turimo guhindura uruhare rwarwo mu rwego rw’imiti ku isi.
1. Icyatsi kibisi
Iterambere mu buhanga bwo guhindura catalitike ni uguhindura umusaruro wa Ethylene glycol. Abashakashatsi bo muri Aziya bakoze ubushakashatsi bushya bushingiye ku muringa uhindura syngas (ivangwa na hydrogène na monoxide ya karubone) muri Ethylene glycol hamwe na 95% byatoranijwe, bakarenga umuhuza gakondo wa Ethylene. Ubu buryo bugabanya gukoresha ingufu 30% kandi bugabanya imyuka ya CO₂ kuri toni 1,2 kuri toni ya EG yakozwe.
Inzira, ubu mugupima kwicyitegererezo, ihuza intego za decarbonisation yisi yose kandi irashobora guhungabanya inzira zisanzwe ziterwa n’ibimera. Niba byapimwe, birashobora gutuma ibihingwa bya Ethylene glycol bihuza hamwe na sisitemu yo gufata karubone, bigashyira EG nkibishobora kuba "imiti yicyatsi" mumurongo utanga uruziga.
2. Bio-ishingiye kuri Ethylene Glycol Yunguka
Mu gihe hagenda hakenerwa ibikoresho birambye, bio-ishingiye kuri Ethylene glycol ikomoka ku bisheke cyangwa ibinyamisogwe by ibigori bigenda bigaragara nkuburyo bushoboka. Umugambi uherutse gukorwa muri Amerika yepfo werekanye ko bishoboka ko hashyirwaho imyanda y’ubuhinzi muri monoethylene glycol (MEG) hamwe na 40% munsi ya karubone munsi y’ibikomoka kuri peteroli.
Inganda z’imyenda, umuguzi ukomeye wa EG, zirimo kugerageza bio-MEG mu musemburo wa fibre polyester, ibisubizo hakiri kare byerekana imbaraga zingana zingana no gusiga irangi. Gahunda zogushiraho amategeko, nkibikorwa by’ubumwe bw’ibihugu by’Uburayi, byihutisha iyakirwa, nubwo imbogamizi zijyanye no kugaburira amatungo no kugereranya ibiciro bikomeje.
3. Igenzura rigenga kugenzura EG
Kwiyongera kw’ibibazo biterwa na Ethylene glycol ku bidukikije byakomeje amategeko akomeye. Mu Kwakira 2023, EPA yo muri Amerika yasabye amabwiriza agezweho yo gusohora amazi y’amazi arimo EG, ategeka uburyo bwa okiside bwateye imbere kugirango bugabanye glycol zisigaye munsi ya 50 ppm. Icyarimwe, Umuryango w’ubumwe bw’ibihugu by’i Burayi urimo gutegura ubugororangingo mu rwego rwo kwiyandikisha, gusuzuma, kwemerera, no kugabanya imiti (REACH), bisaba ko ababikora batanga amakuru y’uburozi ku bicuruzwa bya EG bitarenze 2025.
Izi ngamba zigamije gukemura ibibazo by’ibidukikije, cyane cyane mu binyabuzima by’amazi, aho kwirundanya kwa EG bifitanye isano no kugabanuka kwa ogisijeni mu mazi.
4. Gushya gushya mububiko bwingufu
Ethylene glycol irimo kubona ibintu bitunguranye muri sisitemu yo kubika ingufu zigihe kizaza. Ihuriro ry’ubushakashatsi mu Burayi ryashizeho imashini ikonjesha ya batiri idacanwa ikoresheje ivangwa rya EG-amazi ryahinduwe, ryongera imicungire y’ubushyuhe muri bateri ya lithium-ion ku kigero cya 25%. Imikorere ikora neza kuri -40 ° C kugeza kuri 150 ° C, irageragezwa muri prototypes yimodoka yamashanyarazi hamwe nububiko bwa gride-nini.
Byongeye kandi, ibikoresho bya EG bishingiye ku cyiciro cyo guhindura ibintu (PCMs) bigenda byitabwaho mu kubika ingufu z'amashanyarazi akomoka ku mirasire y'izuba, hamwe n'ibigeragezo biherutse kugera ku kigero cya 92% cyo gukoresha ingufu zirenga 500.
5. Tanga urunigi rwo kwihanganira no guhinduranya uturere
Impagarara za geopolitike hamwe n’ibikoresho byo mu bikoresho byatumye habaho uturere tw’umusaruro wa Ethylene glycol. Ibikoresho bishya mu burasirazuba bwo hagati no mu majyepfo y’amajyepfo ya Aziya bifata amashanyarazi, mato mato mato atunganijwe neza kugirango haboneke amatungo yaho, bigabanye gushingira ku bimera bikomatanyirijwe hamwe. Ihinduka ryuzuzwa na sisitemu yo gucunga ibarura rya AI igabanya imyanda ya EG mumirenge yo hasi nko gukora amacupa ya PET.
Umwanzuro: Ubwihindurize butandukanye
Umurenge wa Ethylene glycol uhagaze mu masangano, uhuza ibikorwa byinganda byashinze imizi hamwe nibisabwa byihutirwa. Udushya muri synthesis yicyatsi, ubundi buryo bushingiye kuri bio, hamwe nubukungu bwizunguruka burimo gusobanura urwego rwagaciro, mugihe amabwiriza akomeye ashimangira ko hakenewe ibikorwa byangiza ibidukikije. Mu gihe uruganda rukora imiti ruganisha kuri decarbonisation, imiterere ya Ethylene glycol ihindagurika bizagaragaza akamaro kayo ku isoko ryihuta cyane.
Igihe cyo kohereza: Apr-07-2025