Ma Iulai 1, 2022, ka hoʻomaka ʻana o ka hana mua o ka 300,000 tons.methyl methacrylate(ma hope aku i kapa ʻia ʻo methyl methacrylate) ʻO ka papahana MMA o Henan Zhongkepu Raw and New Materials Co., Ltd. i mālama ʻia ma Puyang Economic and Technological Development Zone, e hōʻailona ana i ka hoʻohana ʻana i ka hoʻonohonoho mua o ka ʻenehana ionic liquid catalytic ethylene MMA i hoʻomohala kūʻokoʻa e ka CAS a me Zhongyuan Dahua. ʻO kēia hoʻi ka mea kanu ethylene MMA mua i paʻi ʻia ma Kina. Inā hoʻokomo maikaʻi ʻia nā mea hana i ka hana ʻana, e loaʻa iā ia kahi holomua i ka hana ʻana o ka ethylene MMA Kina, he hopena koʻikoʻi loa ia i ka ʻoihana MMA.
Hiki ke hoʻolaha ʻia ka lua o ka MMA o ka hana ethylene ma Kina ma Shandong. Ua manaʻo mua ʻia e hoʻokomo ʻia i loko o ka hana ma kahi o 2024, a aia i kēia manawa i ka pae ʻae mua. Inā ʻoiaʻiʻo ka ʻāpana, e lilo ia i ʻāpana MMA ʻelua o ke kaʻina hana ethylene ma Kina, he mea koʻikoʻi nui ia i ka hoʻololi ʻana o ke kaʻina hana MMA ma Kina a me ka hoʻomohala ʻana i ka ʻoihana kemika o Kina.
Wahi a nā ʻikepili kūpono, aia nā kaʻina hana MMA ma Kina: kaʻina C4, kaʻina ACH, ke kaʻina ACH i hoʻomaikaʻi ʻia, ke kaʻina hana BASF ethylene a me ke kaʻina ethylene Lucite. Ma ke ao holoʻokoʻa, loaʻa i kēia mau kaʻina hana nā hoʻonohonoho ʻoihana. Ma Kina, ua hana ʻia ke kānāwai C4 a me ke kānāwai ACH, ʻoiai ʻaʻole i hoʻokō piha ʻia ke kānāwai ethylene.
No ke aha e hoʻonui ai ka ʻoihana kemika o Kina i kāna mea kanu ethylene MMA? He hoʻokūkū paha ke kumu kūʻai o MMA i hana ʻia e ke ʻano ethylene?
ʻO ka mea mua, ua hana ka mea kanu ethylene MMA i kahi blank ma Kina a loaʻa iā ia kahi pae ʻenehana hana kiʻekiʻe. Wahi a ka noiʻi, ʻelua wale nō pūʻulu o nā ʻāpana ethylene MMA ma ka honua, aia ma ʻEulopa a me ʻAmelika ʻĀkau. He maʻalahi nā kūlana ʻenehana o nā ʻāpana MMA ethylene. ʻOi aku ka nui o ka hoʻohana atomic ma mua o 64%, a ʻoi aku ka kiʻekiʻe o ka hua ma mua o nā ʻano hana ʻē aʻe. Ua hoʻokō ʻo BASF a me Lucite i ka noiʻi ʻenehana a me ka hoʻomohala ʻana i nā lako MMA no ke kaʻina hana ethylene i ke kakahiaka nui, a ua hoʻokō i ka ʻoihana.
ʻAʻole komo ka MMA o ke kaʻina hana ethylene i nā mea waiwai waiwai, e alakaʻi ana i ka palaka haʻahaʻa o nā mea hana, ke kaʻina hana hoʻonaninani kūlohelohe, a me ka lōʻihi o ka hana holoʻokoʻa a me ka pōʻai. I kēia hihia, ʻoi aku ka haʻahaʻa o ke kumukūʻai hoʻemi o ka ʻāpana MMA i ka hana ethylene i ka wā o ka hana ʻana ma mua o nā kaʻina hana ʻē aʻe.
Loaʻa i nā lako Ethylene MMA nā hemahema. ʻO ka mea mua, koi ʻia nā mea kākoʻo no nā mea kanu ethylene, kahi e hana nui ʻia ai ka ethylene e nā mea kanu i hoʻohui ʻia, no laila pono ke kākoʻo ʻana i ka hoʻomohala ʻana i nā ʻoihana hoʻohui. Inā kūʻai ʻia ka ethylene, ʻilihune ka hoʻokele waiwai. ʻO ka lua, ʻelua wale nō pūʻulu o nā lako ethylene MMA ma ka honua. Ke hoʻohana nei nā papahana o Kina i ke kūkulu ʻia ʻana i ka ʻenehana o ka Chinese Academy of Sciences, a ʻaʻole hiki ke loaʻa maʻalahi nā ʻoihana ʻē aʻe i ka ʻenehana. ʻO ke kolu, ʻo ka MMA mea hana o ka ethylene kaʻina he kahe kaʻina hana, nui ka hoʻopukapuka kālā, nui ka nui o ka chlorine i loko o ka wai ʻōpala e hana ʻia i ke kaʻina hana, a he kiʻekiʻe ke kumukūʻai lapaʻau o nā ʻōpala ʻekolu.
ʻO ka lua, ʻo ke kumu kūʻai hoʻokūkū o ka ʻāpana MMA mai ka ethylene kākoʻo, aʻo ka ethylene waho ʻaʻohe pono hoʻokūkū maopopo. Wahi a ka hoʻokolokolo ʻana, ʻo ka ʻāpana MMA o ke ʻano ethylene he 0.4294 tons o ka ethylene, 0.387 tons o ka methanol, 661.35 Nm ³ Synthetic gas, 1.0578 tons of crude chlorine i hana ʻia e ka co reaction, a ʻaʻohe huahana methacrylic acid i ke kaʻina hana. .
Wahi a ka ʻikepili pili i hoʻokuʻu ʻia e Shanghai Yunsheng Chemical Technology Co., Ltd., ʻo ke kumukūʻai MMA o ke ʻano ethylene ma kahi o 12000 yuan/ton i ka wā he 8100 yuan/ton ka ethylene, 2140 yuan/ton ka methanol, 1.95 yuan/ton ke kinoea synthetic. mika cubic, a me ka chlorine kino he 600 yuan/ton. Hoʻohālikelike ʻia me ka manawa like, ʻoi aku ka kiʻekiʻe o nā kumukūʻai kānāwai o ke ʻano C4 a me ke ʻano ACH. No laila, e like me nā kūlana mākeke o kēia manawa, ʻaʻohe ʻike hoʻokūkū hoʻokele waiwai o ka ethylene MMA.
Eia nō naʻe, ʻo ka hana ʻana o MMA ma ke ʻano ethylene e like paha me nā kumuwaiwai ethylene. ʻO ka Ethylene mai ka naphtha cracking, coal synthesis, etc. I kēia hihia, ʻo ka hoʻokūkū o ka hana MMA ma ke ʻano ethylene e hoʻopilikia nui ʻia e ke kumukūʻai o nā mea waiwai ethylene. Inā ho'olako pono'ia ka ethylene maka, pono e helu 'ia ma muli o ke kumu kū'ai o ka ethylene, kahi e ho'omaika'i nui ai i ka ho'okūkū kumu kū'ai o ka ethylene MMA.
ʻO ke kolu, ʻo ka ethylene MMA e hoʻopau i ka nui o ka chlorine, a ʻo ke kumukūʻai a me ke kākoʻo ʻana o ka pilina o ka chlorine e hoʻoholo pū i ke kī i ka hoʻokūkū kumu kūʻai o ka ethylene MMA. Wahi a nā kaʻina hana o BASF a me Lucite, pono kēia mau hana ʻelua e hoʻopau i ka nui o ka chlorine. Inā loaʻa i ka chlorine kona pilina kākoʻo ponoʻī, ʻaʻole pono e noʻonoʻo ʻia ke kumukūʻai o ka chlorine, kahi e hoʻomaikaʻi nui ai i ka hoʻokūkū koʻikoʻi o ka ethylene MMA.
I kēia manawa, ua ʻike nui ʻia ka ethylene MMA ma muli o ka hoʻokūkū o nā kumukūʻai hana a me ke ʻano hana maʻalahi o ka ʻāpana. Eia kekahi, ʻo nā koi no ke kākoʻo ʻana i nā lako maka e kūlike me ke ʻano hoʻomohala o kēia manawa o ka ʻoihana kemika o Kina. Inā kākoʻo ka ʻoihana i ka ethylene, chlorine a me ke kinoea synthesis, a laila ʻo ethylene MMA paha ke kumu kūʻai hoʻokūkū hoʻokūkū nui loa i kēia manawa. I kēia manawa, ʻo ke ʻano hoʻomohala o ka ʻoihana kemika o Kina ka nui o nā lako kākoʻo. Ma lalo o kēia ʻano, ʻo ke ʻano ethylene e pili ana me ka ethylene MMA hiki ke lilo i mea nui o ka ʻoihana.