Source: Labaran Masana'antar Sinadaran Sin
A ranar 23 ga Nuwamba, gidan yanar gizon hukuma na Ma'aikatar Ilimin Halittu da Muhalli ya fitar da "Jerin da aka Shawarar na Maganin Hydrochlorofluorocarbon a China (Draft for Comment)" (wanda ake kira da "List"), yana ba da shawarar monochlorodifluoromethane (HCFC -22), 1 ,1-dichloro-1-fluoroethane (HCFC-141b), 1-chloro-1,1-difluoroethane (HCFC-142b) 24 daga cikin manyan gida uku da aka samar da kuma amfani da HCFCs 1 madadin, gami da 6 madadin kumfa, gami da carbon dioxide. , pentane, ruwa, hexafluorobutene, trifluoropropene, tetrafluoropropene, da dai sauransu.
Mutumin da ya dace da ke kula da ma'aikatar ilimin halittu da muhalli ya ce a halin yanzu akwai manyan nau'ikan nau'ikan HCFC guda biyu: daya shine hydrofluorocarbons (HFCs) tare da babban dumamar yanayi (GWP), wanda aka yi amfani da shi sosai a cikin ƙasashe masu tasowa shekaru da yawa. , kuma sun sami nasarar samar da kayayyaki masu yawa a kasar Sin.sikelin masana'antu.Na biyu shine ƙananan abubuwan maye gurbin GWP, gami da ruwa mai aiki na halitta, olefins mai ɗauke da fluorine (HFO) da sauran abubuwa.Domin inganta tsarin kawar da HCFCs, ƙarfafa sakamakon da aka cire da maye gurbin HCFCs, da jagorantar masana'antu da masana'antu masu dacewa don ƙirƙira, haɓakawa da amfani da madadin kore da ƙananan carbon, Ma'aikatar Ecology da Muhalli. , bisa ga taƙaita sakamakon ficewar HCFC a cikin shekaru goma da suka gabata, aikace-aikacen hydrocarbons (HCFCs) a masana'antu daban-daban, la'akari da abubuwa kamar balaga, samuwa, da maye gurbin abubuwan da za a iya amfani da su, bincike da tsarawa. da "Jerin da aka Shawarar na Maɓallin Maɓallin HCFC a China" (wanda ake kira "Jerin"))."Jerin" yana ba da shawarar hanyoyin da hanyoyin fasaha waɗanda masana'antu suka gane da kuma goyan bayan nasarar amfani da gida ko ayyukan nunawa, yayin da suke ƙarfafa ƙirƙira da haɓaka ƙananan GWP madadin.
Mataimakin sakatare-janar na kungiyar masana'antun sarrafa filastik ta kasar Sin Meng Qingjun, ya bayyana a cikin wata hira da manema labarai daga kamfanin dillancin labarai na kasar Sin cewa, "Jerin" ya ba da shawarar a yi amfani da carbon dioxide maimakon HCFC a matsayin wakili na kumfa don fitar da kumfa polystyrene da polyurethane. fesa kumfa, wanda ke da alaƙa da muhalli da tattalin arziki, kuma zai nuna kyakkyawan fata na aikace-aikacen.A mataki na gaba, ƙungiyar za ta yi aiki tare da Ma'aikatar Ilimin Halittu da Muhalli don ƙarfafa haɓakar ma'aikatan kumfa masu dacewa don tabbatar da ci gaba da ci gaba da ayyukan masana'antu na polyurethane da polystyrene.
Xiang Minghua, babban manajan kamfanin Shaoxing Huachuang Polyurethane Co., Ltd., ya bayyana cewa, maye gurbin HCFCs da carbon dioxide a matsayin wakili na kumfa na kumfa polyurethane an zaba a cikin "List", wanda zai kawo sabbin damar ci gaba ga kamfanin.Kamfanin zai kara haɓaka fasahar fesa kumfa carbon dioxide da kayan aiki don samar da masana'antu da aminci, abokantaka da muhalli, mafita masu tsada.
Sun Yu, shugaban kamfanin Jiangsu Meside Chemical Co., Ltd., ya ce, "Jagorar bunkasa masana'antar polyurethane ta kasar Sin na shekaru biyar na 14" ya ba da shawarar cewa masana'antar polyurethane ta kara haɓaka da amfani da fasahohin hade don aiki, kore, aminci da aminci. Additives m muhalli.Rayayye inganta maye gurbin wakilin kumfa ODS.A matsayin babban sashin da ke da alhakin haɓakawa da aikace-aikacen fasaha na haɗin gwiwar polyurethane a cikin Sin, Meside yana taimakawa wajen fahimtar maye gurbin ma'aikatan kumfa mai ƙarancin GWP ta hanyar haɓakawa da haɓakawa na polyurethane surfactants (kumfa stabilizers) da masu haɓakawa, da haɓaka ƙarancin ƙasa. - carbon da kare muhalli na masana'antu.
A halin yanzu, ƙasata tana aiwatar da aikin kawar da hydrochlorofluorocarbons (HCFCs) daidai da buƙatun yarjejeniya.Bisa kudurin yarjejeniya karo na 19 na taron jam'iyyu, kasar ta na bukatar ta daskare samarwa da kuma amfani da HCFC a matakin farko a shekarar 2013, sannan ta rage matakin da kashi 10%, 35% da 67.5% nan da shekarar 2015. 2020, 2025 da 2030 bi da bi.% da 97.5%, kuma 2.5% na matakin tushe an tanadi ƙarshe don kiyayewa.Koyaya, ƙasata har yanzu ba ta fitar da shawarar da aka ba da shawarar maye gurbin HCFCs ba.Kamar yadda kawar da HCFCs ya shiga wani muhimmin mataki, masana'antu daban-daban da ƙananan hukumomi suna buƙatar jagora cikin gaggawa kan maye gurbin don tabbatar da ci gaba da aikin masana'antu da kuma ƙasa.
Lokacin aikawa: Yuli-25-2022