Pehea e koho ai i kahi mea hana nitrogen kūpono

Ma mua o ka hoʻoholo ʻana i nā kikoʻī kikoʻī o ke kumu hoʻohālike (ʻo ia hoʻi Hana ʻana o ka naikokene i kēlā me kēia hola, ka maʻemaʻe naikokene, ke kaomi puka, ke kiko hau), pono mākou e kālele i kahi loiloi hoʻohālikelike piha o ka hana a me nā ʻano o kamea hana naikokene, a hana i ke koho kūpono ma muli o ko mākou kūlana o ke kaiapuni o kēia manawa.

Nā koi no ka naikokene ma nā ʻoihana like ʻole

A, ʻOihana hana hao a me ka hana ʻana i ka metala

Pono kekahi o kēia mau ʻoihana i ka naikokene me ka maʻemaʻe ma mua o 99.5%, aʻo kekahi e koi ana i ka naikokene kiʻekiʻe me ka maʻemaʻe ma mua o 99.9995% a me kahi kiko hau ma lalo o -65°C. Pono e hoʻoholo ʻia kēia ma muli o nā kūlana hana ponoʻī o ka mea kūʻai aku.

B, Nā ʻoihana kemika a me nā mea hou

Ma keʻano laulā, ʻaʻole kiʻekiʻe nā koi no ka maʻemaʻe naikokene, a hiki ke hoʻohana ʻia nā maʻemaʻe he nui ma mua o 98%. Eia nō naʻe, pili nā koi maoli i ke kaʻina hana ponoʻī a ka mea kūʻai aku.

C, Nā ʻoihana meaʻai a me nā lāʻau lapaʻau

ʻAʻole koi nui ka hapa nui o nā ʻoihana meaʻai no ka naikokene, a hiki i ka maʻemaʻe 99.5% ~ 99.9% ke hoʻokō i nā koi. Pono kahi helu liʻiliʻi o nā ʻoihana meaʻai e koho i ka maʻemaʻe 99.99% ma muli o nā koi hana. ʻO ka maʻamau, koi ka ʻoihana lāʻau lapaʻau i ka maʻemaʻe naikokene o 99.99% a koi ʻia e hana ʻia me ke kila kila.

ʻOihana uila d

Ma keʻano laulā, kiʻekiʻe loa nā koi no ka naikokene, a ʻo ka maʻamau, pono ka maʻemaʻe o ka naikokene he 99.99% a ʻoi aku paha.

Hoʻohālikelike ma waena o nā ʻano like ʻole Mea Hana Naikokenenā

A, mea hana naikokene hoʻokaʻawale ea Cryogenic

ʻO ka hana ʻana i ka naikokene hoʻokaʻawale ea cryogenic kahi ʻano hana hana naikokene kuʻuna me ka mōʻaukala o aneane he mau makahiki he ʻumi. Hoʻohana ia i ka ea ma ke ʻano he mea maka, hoʻopaʻa a hoʻomaʻemaʻe iā ia, a laila hoʻohana i ka hoʻololi wela e hoʻoheheʻe i ka ea i ka ea wai. ʻO ka ea wai ka hui nui ʻana o ka oxygen wai a me ka naikokene wai. ʻO nā kiko paila like ʻole o ka oxygen wai a me ka naikokene wai (ma 1 lewa, ʻo ke kiko paila o ka mea mua he -183 ℃ a ʻo ka mea hope he -196 ℃) i hoʻohana ʻia e hoʻokaʻawale iā lākou ma o ka distillation o ka ea wai e loaʻa ai ka naikokene. He paʻakikī nā lako hana hana naikokene hoʻokaʻawale ea cryogenic, noho i kahi ākea, he nui nā kumukūʻai o ke kahua, koi i ka hoʻopukapuka kālā hoʻokahi manawa i nā lako, he nui nā kumukūʻai hana, lohi ka hana kinoea (12 a 24 mau hola), he kiʻekiʻe nā koi hoʻonohonoho, a me kahi pōʻaiapuni lōʻihi. Ke noʻonoʻo nei i nā mea o nā lako, ke kau ʻana a me ke kahua, ʻo ka pae hoʻopukapuka o nā lako PSA me nā kikoʻī like ma lalo o 3500Nm3/h he 20% a 50% haʻahaʻa ma mua o nā lako hoʻokaʻawale ea cryogenic. He kūpono nā lako hana hana naikokene hoʻokaʻawale ea cryogenic no ka hana naikokene ʻoihana nui, ʻoiai ʻaʻole hoʻokele waiwai ka hana naikokene waena a me ka liʻiliʻi.

B, mea hana naikokene adsorption hoʻololi kaomi PSA

ʻO ke ʻano o ka hoʻohana ʻana i ka ea ma ke ʻano he mea maka, ka sieve molekala kalapona e like me ka adsorbent, e hoʻopili ana i ke kumumanaʻo o ka adsorption swing pressure, a me ka hoʻohana ʻana i ka adsorption koho o ka oxygen a me ka nitrogen e ka sieve molekala kalapona e hoʻokaʻawale i ka nitrogen a me ka oxygen i kapa ʻia ma ke ʻano maʻamau. Hana ʻana o ka naikokene PSAʻO kēia ʻano hana he ʻenehana hana naikokene hou i ulu wikiwiki i nā makahiki 1970. Ke hoʻohālikelike ʻia me nā ʻano hana hana naikokene kuʻuna, loaʻa iā ia nā ʻano o ke kahe hana maʻalahi, ke kiʻekiʻe o ka automation, ka hana kinoea wikiwiki (15-30 mau minuke), ka hoʻohana ʻana i ka ikehu haʻahaʻa, hiki ke hoʻoponopono ʻia ka maʻemaʻe o ka huahana i loko o kahi ākea nui e like me nā pono o ka mea hoʻohana, ka hana maʻalahi a me ka mālama ʻana, ke kumukūʻai hana haʻahaʻa, ka hoʻololi ikaika ʻana i nā hāmeʻa, a pēlā aku. No laila, he hoʻokūkū loa ia i nā lako hana naikokene ma lalo o 1000Nm3/h, a ke hoʻokipa nui ʻia nei e nā mea hoʻohana naikokene waena a me ka liʻiliʻi. Naikokene Psa ua lilo ka hana ʻana i ʻano hana no nā mea hoʻohana naikokene waena a me ka liʻiliʻi.

C, mea hana naikokene hoʻokaʻawale membrane

Ma ka hoʻohana ʻana i ka ea ma ke ʻano he mea maka, ma lalo o kekahi mau kūlana kaomi, ua hoʻokaʻawale ʻia ka oxygen a me ka naikokene ma ka hoʻohana ʻana i nā helu permeation like ʻole o nā kinoea me nā waiwai like ʻole e like me ka oxygen a me ka naikokene i loko o ka membrane. Ke hoʻohālikelike ʻia me nā lako hana naikokene ʻē aʻe, loaʻa iā ia nā pono o ke ʻano maʻalahi, ka liʻiliʻi o ka nui, ʻaʻohe valve hoʻololi, ka mālama liʻiliʻi, ka hana kinoea wikiwiki (≤3 mau minuke), a me ka hoʻonui ʻana i ka mana kūpono. He kūpono loa ia no nā mea hoʻohana naikokene waena a me liʻiliʻi me ka maʻemaʻe naikokene ≤98%, a loaʻa iā ia ka lakio hana-kumukūʻai maikaʻi loa. Ke ʻoi aku ka maʻemaʻe o ka naikokene ma mua o 98%, ʻoi aku kona kumukūʻai ma mua o 15% ma mua o nā mea hana naikokene PSA o nā kikoʻī like.

Nā mea e pili ana i ke kumukūʻai o nā mea hana naikokene

1. Ke kumukūʻai kūʻai hoʻokahi manawa o ka ʻōnaehana holoʻokoʻa. I kēia manawa, nui nā lama ma ka mākeke, a kūlike ke ʻano me ke kumukūʻai.

2. Ke kūpaʻa o ka hana o nā lako a me ke ola lawelawe i manaʻo ʻia.

3. Nā kumukūʻai hana a me ka mālama makahiki.

4. Nā kumukūʻai wai a me ka uila i kēlā me kēia lā.