Hoʻohālikelike loea a me ke koho ʻana
Ke kaʻina hana o ka hoʻoheheʻe ʻana o ke kinoea kūlohelohe ʻO ke kumu nui, ʻo ia ka mālama mua ʻana i ke kinoea hānai (hoʻomaʻemaʻe), ka hoʻoheheʻe ʻana, ka hoʻopili ʻana i ke kaʻina hana refrigerant, ka mālama ʻana i nā huahana, ka hoʻouka ʻana a me nā ʻōnaehana kōkua. ʻO ke kaʻina hana nui e pili ana i ka hoʻomaʻemaʻe ʻana i ke kinoea hānai a me ka hoʻoheheʻe ʻana i ke kinoea i hoʻomaʻemaʻe ʻia.
Ke koho ʻana i ke kaʻina hana hoʻomaʻemaʻe kinoea kūlohelohe
Pono e hoʻomaʻemaʻe pono ʻia ke kinoea kūlohelohe ma ke ʻano he kinoea hānai ma mua o ka hoʻoheheʻe ʻana. ʻO ia hoʻi, e wehe i ke kinoea waikawa, ka wai a me nā mea haumia i loko o ke kinoea hānai, e like me H2S, CO2, H2O, Hg a me nā hydrocarbons ʻala, i mea e pale aku ai iā lākou mai ka hau ʻana i ka mahana haʻahaʻa a me ka pale ʻana a me ka hōʻino ʻana i nā lako a me nā paipu.
A) Papa 3.1-1 papa inoa i nā kūlana hoʻomaʻamaʻa mua o ke kinoea hānai i loko o ka hale hana LNG a me ka nui o nā mea haumia.
| Haumia | Palena ʻike | Kumu |
| H2KA |
| A (ʻae ʻia e ʻoi aku ma mua o ka palena hoʻoheheʻe ʻana me ka ʻole o ka palena ʻana i ka hana ʻana) |
| CO2 | 50～100ppmV | B (Ka hoʻoheheʻe hope loa) |
| H2S |
| C (nā koi loea huahana) |
| Ka nui o ka sulfur | 10～50mg/Nm3 | C |
| Hg | ＜0.01μg/Nm3 | A |
| Hydrocarbon ʻala | ≤10ppmV | A a i ʻole B |
| Nā hydrocarbons naphthenic āpau | ≤10ppmV | A a i ʻole B |
Mai ka ʻikepili o ke kinoea hānai, ʻoi aku ka nui o ke kalapona ʻokikene i loko o ke kinoea hānai ma mua o ka maʻamau a pono e hoʻomaʻemaʻe ʻia.
ʻO ke kaʻina hana wai amine MDEA ke kaʻina hana kūpono loa ma ke ʻano o ka hoʻohana ʻana i ka ikehu, ka nui o ka mālama ʻana a me ke kumukūʻai hoʻopukapuka a me ka hana. No laila, ua koho ʻia ke kaʻina hana wai amine MDEA no ke kinoea deacidification ma kēia hoʻolālā.
B) Kaʻina hana maloʻo koho ʻana
ʻO ke ola ʻana o ka wai i loko o ke kinoea kūlohelohe e alakaʻi pinepine ai i nā hopena koʻikoʻi: ma lalo o kekahi mau kūlana, hoʻokumu ka wai a me ke kinoea kūlohelohe i ka hydrate e ālai i ka pipeline a hoʻopilikia i ke kaʻina hana hoʻoluʻu; Eia kekahi, ʻo ke ola ʻana o ka wai e hoʻoulu ai i ka hoʻohana ʻana i ka mana pono ʻole; Ma muli o ka mahana liquefaction haʻahaʻa o ke kinoea kūlohelohe a me ke ola ʻana o ka wai, e hoʻopaʻa ʻia a ālai ʻia nā lako, no laila pono e hoʻomaloʻo ʻia.
Kaʻina hana hoʻomaloʻo kinoea kūlohelohe ʻO ka laulā maʻamau, ʻekolu mau ʻano: ka dehydration haʻahaʻa haʻahaʻa, ka adsorption desiccant paʻa a me ka absorption solvent. Hoʻohana nui ʻia ka hoʻokaʻawale hau ʻana e pale aku i ka hydrate i ka wā e haʻahaʻa ai ka mahana o ke kinoea kūlohelohe. Eia nō naʻe, ua kaupalena ʻia ka mahana haʻahaʻa e ʻae ai a ʻaʻole hiki ke hoʻokō i nā koi o ka liquefaction kinoea kūlohelohe; ʻO ka absorption solvent maʻamau e komo pū me ka waikawa i hoʻopaʻa ʻia (ʻo ka waikawa organik e like me ka waikawa phosphoric i hoʻopaʻa ʻia), glycol (triethylene glycol i hoʻohana pinepine ʻia), a pēlā aku, akā he haʻahaʻa ka hohonu o ka dehydration o kēia mau ʻano a ʻaʻole hiki ke hoʻohana ʻia i nā ʻāpana cryogenic; ʻO nā ʻano dehydration maʻamau o ka desiccant paʻa he silica gel method, molecular sieve method a i ʻole ka hui pū ʻana o nā ʻano ʻelua.
Pono e hoʻohana ʻia ke ʻano adsorption paʻa no ka dehydration liquefaction kinoea kūlohelohe. No ka mea, he mau pono ko ka sieve molekala o ke koho adsorption ikaika, nā ʻano adsorption kiʻekiʻe ma lalo o ke kaomi hapa haʻahaʻa o ka mahu wai a me ka wehe hou ʻana i ke kinoea waikawa koena, hoʻohana ʻia ka sieve molekala 4A ma ke ʻano he adsorbent dehydration ma kēia hoʻolālā.
C) Ke koho ʻana i ke kaʻina hana wehe mercury
I kēia manawa, aia ʻelua mau kaʻina hana nui e wehe ai i ka mercury: ke ʻano adsorption sieve molekala hgsiv o ka hui UOP ma ʻAmelika Hui Pū ʻIa a me ke kalapona i hoʻoulu ʻia i ka sulfur e hana i ka mercury me ka sulfur e hana i ka mercury sulfide a hoʻopili iā ia ma ke kalapona i hoʻoulu ʻia. He kiʻekiʻe ke kumukūʻai o ka mea mua a kūpono no nā hanana me ka nui o ka mercury; ʻO ka mea hope he haʻahaʻa ke kumukūʻai hana a kūpono no nā hanana me ka haʻahaʻa o ka mercury.
Ma kekahi ʻaoʻao, kiʻekiʻe loa ke kumukūʻai hana o ka sieve molekala hgsiv; Ma kekahi ʻaoʻao, haʻahaʻa loa ka nui o ka mercury i loko o ke kinoea hānai o ka ʻāpana. No laila, ua loaʻa i ka ʻoihana ka ʻike holomua i ka hoʻohana ʻana i ke kalapona i hoʻoulu ʻia me ka sulfur no ka wehe ʻana i ka mercury.
Hoʻokaʻaʻike:
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Ka manawa hoʻouna: Sep-11-2022