ʻO ka propylene oxide kahi ʻano mea waiwai nui a me nā mea waena, i hoʻohana nui ʻia i ka hana ʻana i nā polyether polyols, polyester polyols, polyurethane, polyester, plasticizers, surfactants a me nā ʻoihana ʻē aʻe. I kēia manawa, hoʻokaʻawale ʻia ka hana o ka propylene oxide i ʻekolu mau ʻano: kemika synthesis, enzyme catalytic synthesis a me ka biological fermentation. Loaʻa i nā ʻano ʻekolu ko lākou mau hiʻohiʻona ponoʻī a me ka laulā noi. Ma kēia pepa, e nānā mākou i ke kūlana o kēia manawa a me ka ulu ʻana o ka ʻenehana hana propylene oxide, ʻoi aku ka nui o nā ʻano a me nā pono o nā ʻano hana hana ʻekolu, a hoʻohālikelike i ke kūlana ma Kina.
ʻO ka mea mua, ʻo ke ʻano synthesis kemika o ka propylene oxide he ala kuʻuna, nona nā pono o ka ʻenehana makua, ka hana maʻalahi a me ke kumu kūʻai haʻahaʻa. Loaʻa iā ia ka mōʻaukala lōʻihi a me nā manaʻo noiʻi ākea. Eia kekahi, hiki ke hoʻohana ʻia ke ʻano hana synthesis no ka hana ʻana i nā mea waiwai nui a me nā mea waena, e like me ka ethylene oxide, butylene oxide a me styrene oxide. Eia nō naʻe, aia kekahi mau hemahema o kēia ʻano. No ka laʻana, ʻo ka catalyst i hoʻohana ʻia i ke kaʻina hana he maʻamau a me ka corrosive, kahi e hōʻino ai i nā mea hana a me ka pollution kaiapuni. Eia kekahi, pono e hoʻopau ka hana hana i ka nui o ka ikehu a me ka wai, e hoʻonui ai i ke kumukūʻai o ka hana. No laila, ʻaʻole kūpono kēia ʻano hana no ka hana nui ma Kina.
ʻO ka lua, ʻo ka enzyme catalytic synthesis method he ala hou i kūkulu ʻia i nā makahiki i hala. Hoʻohana kēia ʻano i nā enzyme ma ke ʻano he catalysts e hoʻololi i ka propylene i propylene oxide. He nui nā pono o kēia ʻano. No ka laʻana, he kiʻekiʻe ka huli ʻana o kēia ʻano hana a me ke koho ʻana o ka enzyme catalyst; he haʻahaʻa haumia a me ka hoʻohana ikehu liʻiliʻi; hiki ke hoʻokō ʻia ma lalo o nā kūlana haʻahaʻa haʻahaʻa; hiki iā ia ke hana i nā mea waiwai nui a me nā mea waena ma o ka hoʻololi ʻana i nā catalysts. Eia hou, ke hoʻohana nei kēia ʻano i nā pūhui non-toxic biodegradable e like me nā solvents reaction a i ʻole nā kūlana solvent-free no ka hana hoʻomau me ka hoʻemi ʻana i ka hopena o ke kaiapuni. ʻOiai he nui nā pono o kēia ʻano, aia nō kekahi mau pilikia e pono e hoʻoponopono ʻia. Eia kekahi laʻana, he kiʻekiʻe ke kumukūʻai o ka enzyme catalyst, kahi e hoʻonui ai i ke kumukūʻai o ka hana; maʻalahi ka hoʻopau ʻana a hoʻopau ʻia paha ka enzyme catalyst i ke kaʻina hana; Eia kekahi, aia kēia ʻano i ka pae keʻena hana i kēia manawa. No laila, pono kēia ʻano hana noiʻi a me ka hoʻomohala ʻana e hoʻoponopono i kēia mau pilikia ma mua o ka hoʻohana ʻana i ka hana ʻoihana.
ʻO ka hope, ʻo ke ʻano hana fermentation biological kekahi ala hou i kūkulu ʻia i nā makahiki i hala iho nei. Ke hoʻohana nei kēia ʻano i nā microorganism ma ke ʻano he catalysts e hoʻololi i ka propylene i propylene oxide. He nui nā pono o kēia ʻano. No ka laʻana, hiki i kēia ʻano hana ke hoʻohana i nā kumuwaiwai hou e like me ka ʻōpala mahiʻai e like me nā mea maka; he haʻahaʻa haumia a me ka hoʻohana ikehu liʻiliʻi; hiki ke hoʻokō ʻia ma lalo o nā kūlana haʻahaʻa haʻahaʻa; hiki iā ia ke hana i nā mea waiwai nui a me nā mea waena ma o ka hoʻololi ʻana i nā microorganism. Eia kekahi, hoʻohana kēia ʻano i nā pūhui non-toxic biodegradable e like me nā mea hoʻonā hopena a i ʻole nā kūlana solvent-free no ka hana hoʻomau me ka hoʻemi ʻana i ka hopena o ke kaiapuni. ʻOiai he nui nā pono o kēia ʻano, aia nō kekahi mau pilikia e pono e hoʻoponopono ʻia. No ka laʻana, pono ke koho ʻia a nānā ʻia ka microorganism catalyst; he haʻahaʻa ka helu hoʻololi a me ke koho ʻana o ka microorganism catalyst; pono e aʻo houʻia pehea e hoʻomalu ai i nā kaʻina hana e hōʻoia i ka hana paʻa a me ka hana kiʻekiʻe; pono kēia ʻano hana noiʻi a me ka hoʻomohala ʻana ma mua o ka hoʻohana ʻana i ka pae hana ʻenehana.
I ka hopena, ʻoiai he lōʻihi ka moʻolelo o ke ʻano synthesis chemical a me nā manaʻo ākea ākea, aia kekahi mau pilikia e like me ka pollution a me ka hoʻohana ʻana i ka ikehu kiʻekiʻe. ʻO ka Enzyme catalytic synthesis method a me ka biological fermentation method he mau ala hou me ka haʻahaʻa haʻahaʻa a me ka liʻiliʻi o ka ikehu, akā pono lākou i ka noiʻi a me ka hoʻomohala ʻana ma mua o ka hiki ke hoʻohana ʻia i ka pae hana ʻoihana. Eia kekahi, i mea e hoʻokō ai i ka hana nui o ka propylene oxide ma Kina i ka wā e hiki mai ana, pono mākou e hoʻoikaika i ka hoʻopukapuka R&D i kēia mau ʻano i hiki ai iā lākou ke loaʻa ka ʻoi aku ka maikaʻi o ka hoʻokele waiwai a me nā noi noi ma mua o ka hoʻokō ʻia ʻana o ka hana nui.
Ka manawa hoʻouna: Feb-01-2024