Ethylene glycol (EG), kemịkalụ nkume nkuku na mmepụta polyester, usoro mgbochi friza, na resins nke ụlọ ọrụ, na-ahụ mgbanwe mgbanwe nke mkpa nkwado na ọganihu teknụzụ na-akwalite. Ihe ohuru ohuru n’oge na-adịbeghị anya na ụzọ mmepụta, mmelite nhazi, na ngwa ọhụrụ na-emezigharị ọrụ ya na ngalaba kemịkalụ zuru ụwa ọnụ.
1. Green Synthesis Breakthroughs
Ọganihu na teknụzụ ntụgharị catalytic na-agbanwe mmepụta ethylene glycol. Ndị na-eme nchọpụta n'Eshia ewepụtala ihe na-eme ka ọla kọpa na-agbanwe akwụkwọ akụkọ nke na-agbanwe syngas (ngwakọta hydrogen na carbon monoxide) ozugbo n'ime ethylene glycol na nhọrọ 95%, na-agafe etiti ethylene oxide ọdịnala. Usoro a na-ebelata oriri ume site na 30% wee belata ikuku CO₂ site na 1.2 tọn kwa ton nke EG emepụtara.
Usoro a, ugbu a na nnwale pilot, kwekọrọ na ebumnuche decarbonization zuru ụwa ọnụ ma nwee ike ịkpaghasị ụzọ mmepụta ihe dabere na fossil. Ọ bụrụ na a chịkọta ya, ọ nwere ike mee ka osisi ethylene glycol jikọọ n'enweghị nsogbu na sistemu ịwepụta carbon, na-edobe EG dị ka “kemịkalụ akwụkwọ ndụ akwụkwọ ndụ” nwere ike na ụdọ ọkọnọ okirikiri.
2. Ethylene Glycol Na-enweta Ntugharị Bio-Dabere
N'ime ọnụ ọgụgụ na-arị elu maka ihe ndị na-adịgide adịgide, ethylene glycol nke dabeere na bio, nke sitere na okpete ma ọ bụ starch ọka na-apụta dị ka ihe ọzọ nwere ike ime. Atụmatụ njikọta na nso nso a na South America egosila na ọ ga-ekwe omume ịgbanye ihe mkpofu ugbo ka ọ bụrụ monoethylene glycol (MEG) nwere akara ukwu carbon dị ala 40% karịa ihe kwekọrọ na mmanụ ala.
Industrylọ ọrụ akwa akwa, bụ isi ndị ahịa EG, na-anya bio-MEG na mmepụta polyester fiber, yana nsonaazụ mmalite na-egosi ike nkwụsi ike na agba agba. Ihe mkpali usoro iwu, dị ka EU's Renewable Carbon Initiative, na-eme ngwa ngwa nkuchi, n'agbanyeghị ihe ịma aka n'akụkụ scalability feedstock na oke ọnụ ahịa na-aga n'ihu.
3. Nleba anya n'usoro ihe eji emegharị EG
Nchegbu na-eto eto maka nnọgidesi ike gburugburu ebe obibi ethylene glycol ebutela iwu siri ike. N'ọnwa Ọktoba 2023, US EPA tụpụtara ntụzịaka emelitere maka mwepu mmiri mkpofu nwere EG, na-amanye usoro oxidation dị elu iji weda glycols fọdụrụ n'okpuru 50 ppm. N'otu oge ahụ, European Union na-edegharị ndebanye aha ya, nyocha, ikike na mmachi nke kemịkalụ (REACH), na-achọ ka ndị nrụpụta nyefee data nsi maka ngwaahịa EG site na 2025.
Usoro ndị a bu n'obi ileba anya n'ihe egwu dị na gburugburu ebe obibi, karịsịa na gburugburu ebe obibi mmiri, ebe EG jikọtara ọnụ na nkwụsị ikuku oxygen na mmiri.
4. Ngwa ọhụrụ na Nchekwa Ike
Ethylene glycol na-achọta uru a na-atụghị anya ya na sistemụ nchekwa ike nke ọgbọ ọzọ. Otu ụlọ ọrụ nyocha na Europe ejirila ngwakọta mmiri EG-agbanwe agbanwe, na-eme ka njikwa ọkụ na batrị lithium-ion dị 25%. A na-anwale nhazi ahụ, nke na-arụ ọrụ nke ọma na -40 ° C ruo 150 ° C, n'ụdị ụgbọ ala eletrik na nkeji nchekwa grid.
Na mgbakwunye, ihe ngbanwe nke usoro EG (PCMs) na-enweta nlebara anya maka nchekwa ike ọkụ anyanwụ, yana nnwale ndị na-adịbeghị anya na-enweta nrụpụta ike njigide 92% karịa okirikiri 500.
5. Ịnweta Nkwụsị Nkwụsị na Mgbanwe Mpaghara
Esemokwu ndọrọ ndọrọ ọchịchị na mgbanaka ngwa agha akwalitela nhazi mpaghara nke mmepụta ethylene glycol. Ụlọ ọrụ ọhụrụ dị na Middle East na Ndịda Ebe Ọwụwa Anyanwụ Eshia na-anakwere ngalaba mmepụta ihe dị obere, nke kachasị maka nnweta nri mpaghara, na-ebelata ịdabere na osisi mega-agbakọta. A na-emeju mgbanwe a site na sistemụ njikwa ngwa ahịa AI na-achịkwa nke na-ebelata ihe mkpofu EG na mpaghara ala dị ka imepụta karama PET.
Mmechi: Evolushọn Multifaceted
Ngalaba ethylene glycol na-eguzo n'okporo ụzọ, na-emeziwanye ụlọ ọrụ mmepụta ihe gbanyere mkpọrọgwụ na mkpa nkwado ngwa ngwa. Nmepụta ọhụrụ na njikọ akwụkwọ ndụ akwụkwọ ndụ, ihe ndị ọzọ dabere na bio, yana ngwa akụ na ụba okirikiri na-akọwapụta ụdọ uru ya, ebe iwu siri ike na-egosi mkpa ọ dị maka omume gburugburu ebe obibi. Dị ka ụlọ ọrụ kemịkalụ na-agbago n'ịkwapụta ikuku, ngbanwe ethylene glycol ga-ekpebi mkpa ọ dị n'ahịa na-agbanwe ngwa ngwa.
Oge nzipu: Eprel-07-2025