Nā kānana molekulahoʻohana nui ʻia i ka ʻoihana kemika a me ka petrochemical no nā ʻano kaʻina kaʻawale a me ka hoʻomaʻemaʻe. ʻO kekahi o kā lākou noi nui i ka hoʻomaʻemaʻe ʻana i ke kinoea hydrogen. Hoʻohana nui ʻia ka hydrogen ma ke ʻano he meaʻai i nā kaʻina hana ʻoihana like ʻole, e like me ka hana ʻana i ka ammonia, methanol, a me nā mea ʻē aʻe. Eia nō naʻe, ʻaʻole lawa ka maʻemaʻe o ka hydrogen i hana ʻia e nā ʻano hana like ʻole no kēia mau noi, a pono e hoʻomaʻemaʻe ʻia e wehe i nā haumia e like me ka wai, carbon dioxide, a me nā kinoea ʻē aʻe. He mea maikaʻi loa nā kānana molekula i ka wehe ʻana i kēia mau haumia mai nā kahawai kinoea hydrogen.

ʻO nā kānana molekula he mau mea porous i hiki ke koho i nā molekala e like me ko lākou nui a me ke ʻano. Loaʻa iā lākou kahi ʻano o nā lua i hoʻopili ʻia a i ʻole nā ​​pores i like ka nui a me ke ʻano, e hiki ai iā lākou ke koho koho i nā molekala i kūpono i kēia mau lua. Hiki ke hoʻomalu ʻia ka nui o nā lua i ka wā o ka synthesis o ka sieve molecular, kahi e hiki ai ke hoʻololi i kā lākou mau waiwai no nā noi kikoʻī.

I ka hihia o ka hoʻomaʻemaʻe hydrogen, hoʻohana ʻia nā kānana molekala e koho koho i ka wai a me nā mea haumia ʻē aʻe mai ke kahawai hydrogen. Hoʻopili ka molecular sieve i nā molekele wai a me nā mea haumia ʻē aʻe, ʻoiai e ʻae ana i nā molekala hydrogen e hele. Hiki ke hoʻopau ʻia nā mea haumia i hoʻopili ʻia mai ka kānana molekala ma ka hoʻomehana ʻana a i ʻole ka hoʻomaʻemaʻe ʻana me ke kahawai kinoea.

ʻO ka mea maʻamau i hoʻohana ʻiakānana molekulano ka hoʻomaʻemaʻe hydrogen he ʻano zeolite i kapa ʻia ʻo 3A zeolite. He 3 angstroms ka nui o kēia zeolite, hiki iā ia ke koho i ka wai a me nā mea haumia ʻē aʻe i ʻoi aku ka nui o ka molekala ma mua o ka hydrogen. He koho maikaʻi nō hoʻi ia i ka wai, kahi e hana maikaʻi ai i ka wehe ʻana i ka wai mai ke kahawai hydrogen. Hiki ke hoʻohana ʻia nā ʻano zeolite ʻē aʻe, e like me 4A a me 5A zeolites no ka hoʻomaʻemaʻe hydrogen, akā ʻoi aku ka liʻiliʻi o ke koho ʻana i ka wai a makemake paha i nā wela kiʻekiʻe a i ʻole nā ​​​​koi no ka desorption.

I ka hopena, ʻoi aku ka maikaʻi o nā kānana molekula i ka hoʻomaʻemaʻe ʻana i ke kinoea hydrogen. Hoʻohana nui ʻia lākou i ka ʻoihana kemika a me ka petrochemical no ka hana ʻana i ke kinoea hydrogen maʻemaʻe kiʻekiʻe no nā noi like ʻole. ʻO ka zeolite 3A ka kānana molecular i hoʻohana pinepine ʻia no ka hoʻomaʻemaʻe hydrogen, akā hiki ke hoʻohana ʻia nā ʻano zeolite ʻē aʻe ma muli o nā koi noi kikoʻī.

Ma waho aʻe o nā zeolite, hiki ke hoʻohana ʻia nā ʻano kānana molekala ʻē aʻe, e like me ka carbon activated a me ka silica gel, no ka hoʻomaʻemaʻe hydrogen. Loaʻa kēia mau mea i kahi ākea kiʻekiʻe a me ka nui o ka pore nui, kahi e hana maikaʻi ai lākou i ka adsorbing i nā haumia mai nā kahawai kinoea. Eia nō naʻe, ʻoi aku ka liʻiliʻi o ka koho ma mua o ka zeolite a makemake paha i nā mahana kiʻekiʻe a i ʻole nā ​​​​koi no ka hana hou ʻana.

Ma waho aʻe o ka hoʻomaʻemaʻe hydrogen,kānana molekulahoʻohana pū ʻia i nā noi hoʻokaʻawale kinoea a me ka hoʻomaʻemaʻe. Hoʻohana ʻia lākou e wehe i ka makū a me nā haumia mai ka ea, nitrogen, a me nā kahawai kinoea ʻē aʻe. Hoʻohana ʻia lākou e hoʻokaʻawale i nā kinoea ma muli o ko lākou nui molekala, e like me ka hoʻokaʻawale ʻana o ka oxygen a me ka nitrogen mai ka ea, a me ka hoʻokaʻawale ʻana o nā hydrocarbons mai ke kinoea maoli.

ʻO ka holoʻokoʻa, ʻo nā kānana molecular he mau mea maʻamau i loaʻa i kahi ākea o nā noi i ka ʻoihana kemika a me ka petrochemical. Pono lākou no ka hana ʻana i nā kinoea hoʻomaʻemaʻe kiʻekiʻe, a hāʻawi lākou i nā mea maikaʻi ma mua o nā kaʻina hoʻokaʻawale kuʻuna, e like me ka hoʻohana haʻahaʻa haʻahaʻa, ke koho kiʻekiʻe, a me ka maʻalahi o ka hana. Me ka piʻi nui ʻana o ka noi no nā kinoea hoʻomaʻemaʻe kiʻekiʻe i nā kaʻina hana ʻenehana, manaʻo ʻia ka hoʻohana ʻana i nā kānana molekala e ulu i ka wā e hiki mai ana.