Umthombo: I-China Chemical Industry News
Ngomhla zingama-23 kuNovemba, iwebhusayithi esemthethweni yoMnyango Wezemvelo Nemvelo yakhipha “Uhlu Olunconyiwe Lwezindawo Ezibambile ze-Hydrochlorofluorocarbon e-China (Okusalungiswa Kokuphawula)” (okuzobizwa kamuva ngokuthi “Uhlu”), incoma i-monochlorodifluoromethane (HCFC -22), 1 ,1-dichloro-1-fluoroethane (HCFC-141b), 1-chloro-1,1-difluoroethane (HCFC-142b) 24 kwezintathu eziyinhloko ezikhiqizwa futhi ezisetshenziswayo ze-HCFCs 1 ezinye izindlela 1, okuhlanganisa nezinye izindlela ezi-6 ezikhipha amagwebu, okuhlanganisa ne-carbon dioxide , i-pentane, amanzi, i-hexafluorobutene, i-trifluoropropene, i-tetrafluoropropene, njll.
Umuntu othintekayo ophethe uMnyango Wezemvelo Nezemvelo uthe okwamanje kunezinhlobo ezimbili eziyinhloko zezindlela ezihlukile zama-HCFC: eyodwa i-hydrofluorocarbons (HFCs) enamandla amakhulu okufudumala kwembulunga yonke (GWP), osekuyiminyaka eminingi isetshenziswa emazweni athuthukile. , futhi sebezuze ukukhiqizwa kwezinga elikhulu eChina.ukuthuthukiswa kwezimboni.Eyesibili iwukuba esikhundleni senani eliphansi le-GWP, okuhlanganisa uketshezi olungokwemvelo olusebenzayo, ama-olefin ane-fluorine (HFO) nezinye izinto.Ukuze kuthuthukiswe inqubo yokukhishwa kwama-HCFC, kuhlanganiswe imiphumela yokuphuma nokushintshwa kwama-HCFC, futhi kuqondise izimboni namabhizinisi afanelekile ukuthi asungule, athuthukise futhi asebenzise ezinye izindlela eziluhlaza nekhabhoni ephansi, uMnyango Wezemvelo Nemvelo. , ngesisekelo sokufingqa imiphumela yokukhishwa kwe-HCFC eminyakeni eyishumi edlule, Ukusetshenziswa kwama-hydrocarbon (HCFCs) ezimbonini ezihlukahlukene, kucatshangelwa izici ezifana nokuvuthwa, ukutholakala, kanye nemiphumela yokushintshanisa yezinye izindlela, ezicwaningiwe futhi zabhalwa. “Uhlu Olunconyiwe Lokuthatha Indawo I-HCFC E-China” (ngemuva kwalokhu kubizwa ngokuthi “Uhlu”) ).“Uhlu” luncoma ezinye izindlela nobunye ubuchwepheshe obuqashelwe imboni futhi busekelwa izendlalelo zokusetshenziswa kwasekhaya eziphumelelayo noma amaphrojekthi emiboniso, kuyilapho kukhuthazwa ukuqanjwa nokukhuthazwa kwezinye izindlela eziphansi ze-GWP.
UMeng Qingjun, iphini likanobhala-jikelele we-China Plastics Processing Industry Association, engxoxweni nentatheli evela e-China Chemical Industry News wathi “Uhlu” luncoma ukuthi kusetshenziswe i-carbon dioxide esikhundleni sama-HCFC njengegwebu elikhipha igwebu le-polystyrene ne-polyurethane. Futha igwebu, elivumela imvelo futhi liyonga, futhi lizobonisa ithuba elingcono lokufaka isicelo.Esinyathelweni esilandelayo, le nhlangano izosebenzisana ngokugcwele noMnyango Wezemvelo Nezemvelo ukuze kuqiniswe ukugqugquzelwa kwamanye amagwebu afanele ukuze kuqinisekiswe ukusebenza okuqhubekayo kwezimboni ze-polyurethane ne-polystyrene foam.
U-Xiang Minghua, umphathi jikelele we-Shaoxing Huachuang Polyurethane Co., Ltd., uthe ukushintshwa kwama-HCFC yi-carbon dioxide njenge-ejenti ekhipha amagwebu ye-polyurethane spray foam kufakwe ohlwini oluthi "Uhlu", oluzoletha amathuba amasha entuthuko enkampanini.Inkampani izokwandisa ukukhuthazwa kobuchwepheshe bokufafaza igwebu le-carbon dioxide kanye nemishini ukuze inikeze imboni izixazululo eziphephile, ezinobungani kwemvelo, nezingabizi kakhulu.
U-Sun Yu, ongusihlalo we-Jiangsu Meside Chemical Co., Ltd., uthe “umhlahlandlela we-14th Year Five Development for China's Polyurethane Industry” uhlongoza ukuthi imboni ye-polyurethane kufanele ikhulise ukuthuthukiswa kanye nokusetshenziswa kobuchwepheshe obuyinhlanganisela ukuze busebenze, buluhlaza, buphephe futhi izithasiselo ezinobungani kwemvelo.Khuthaza ngokugcwele ukushintshwa kwe-oDS yomenzeli ogwebu.Njengophiko oluhamba phambili olubhekele ukuthuthukiswa kanye nokusetshenziswa kobuchwepheshe be-polyurethane asizayo bekhompiyutha e-China, i-Meside isiza ekuboneni ukushintshwa kwamagwebu e-GWP aphansi ngokusungula izinto ezintsha kanye nokuthuthukiswa kwama-polyurethane surfactants (foam stabilizers) kanye nama-catalysts, futhi akhuthaze aphansi. -carbon kanye nokuvikelwa kwemvelo embonini.
Njengamanje, izwe lami lenza ukukhishwa kwe-hydrochlorofluorocarbons (HCFCs) ngokuhambisana nezidingo zephrothokholi.Ngokwesinqumo se-19th Protocol of the Parties of the Parties, izwe lami lidinga ukumisa ukukhiqizwa nokusetshenziswa kwama-HCFC ezingeni lokuqala ngo-2013, futhi lehlise izinga lesisekelo ngo-10%, 35% kanye nama-67.5% ngo-2015, 2020, 2025 kanye no-2030 ngokulandelana.Amaphesenti kanye nama-97.5%, kanye no-2.5% wezinga lokuqala agcine egcinelwe ukulungiswa.Nokho, izwe lami alikakakhiphi uhlu olunconyiwe lokuthatha indawo yama-HCFC.Njengoba ukuqedwa kwama-HCFC sekungene esigabeni esibucayi, izimboni nezindawo ezahlukene zidinga ngokushesha isiqondiso mayelana nama-substitutes ukuze kuqinisekiswe ukusebenza okuqhubekayo kwemboni nezwe.
Isikhathi sokuthumela: Jul-25-2022