ʻO ka Methane kahi pūhui kemika me ke ʻano kemika CH4 (hoʻokahi ʻātoma kalapona a me ʻehā mau ʻātoma o ka hydrogen).

Hoʻolauna Huahana

ʻO ka Methane kahi pūhui kemika me ke ʻano kemika CH4 (hoʻokahi ʻātoma kalapona a me ʻehā mau ʻātoma o ka hydrogen). He hui-14 hydride a me ka alkane maʻalahi, a ʻo ia ka mea nui o ke kinoea maoli. ʻO ka nui o ka methane ma ka Honua he wahie maikaʻi ia, ʻoiai ʻo ka hopu ʻana a me ka mālama ʻana he pilikia ia ma muli o kona kūlana kinoea ma lalo o nā kūlana maʻamau no ka mahana a me ke kaomi.
Loaʻa ka methane kūlohelohe ma lalo o ka lepo a ma lalo o ka papakū. Ke piʻi ʻo ia i ka ʻili a me ka lewa, ʻike ʻia ʻo ia he methane atmospheric. Ua hoʻonui ʻia ka manaʻo methane lewa o ka Honua ma kahi o 150% mai ka makahiki 1750, a ʻo ia ka 20% o ka nui o ka hoʻoneʻe ʻana mai nā kinoea hoʻomehana honua lōʻihi a hui pū ʻia.

Hōʻike

Hoʻopili a hoʻouna

Palapala noi

Me he wahie la
Hoʻohana ʻia ka Methane i wahie no nā umu, nā hale, nā mea hoʻomehana wai, nā kiln, nā kaʻa, nā turbine, a me nā mea ʻē aʻe. Hoʻopau ia me ka oxygen e hana i ke ahi.

Ma ka ʻoihana Kimia
Hoʻololi ʻia ka Methane i ke kinoea synthesis, kahi hui o ka carbon monoxide a me ka hydrogen, ma o ka hoʻoponopono ʻana i ka mahu.

Hoʻohana

Hoʻohana ʻia ka Methane i nā kaʻina hana kemika ʻoihana a hiki ke lawe ʻia ma ke ʻano he wai pahu hau (liquefied natural gas, a i ʻole LNG). ʻOiai ʻoi aku ke kaumaha o ka leak mai kahi pahu wai pahu hau ma mua o ka ea ma muli o ka piʻi nui ʻana o ke kinoea anuanu, ʻoi aku ka māmā o ke kinoea ma ka wela o ka ea. Hāʻawi nā paipu kinoea i ka nui o ke kinoea maoli, a ʻo ka methane ka mea nui.

1.Uila
Hoʻohana ʻia ka Methane i wahie no nā umu, nā hale, nā mea hoʻomehana wai, nā kiln, nā kaʻa, nā turbine, a me nā mea ʻē aʻe. Puhi ia me ka oxygen e hana i ka wela.

2.Ke kinoea maoli
He mea koʻikoʻi ka methane no ka hana ʻana i ka uila ma ke puhi ʻana iā ia ma ke ʻano he wahie i loko o ka turbine kinoea a i ʻole nā ​​​​mea hana mahu. Hoʻohālikelike ʻia me nā wahie hydrocarbon ʻē aʻe, hoʻemi ka methane i ke kalapona kalapona no kēlā me kēia ʻāpana o ka wela i hoʻokuʻu ʻia. Ma kahi o 891 kJ/mol, ʻoi aku ka haʻahaʻa o ka wela o ka hoʻopau ʻana o ka methane ma mua o nā hydrocarbon ʻē aʻe akā ʻo ka ratio o ka wela o ka puhi ʻana (891 kJ/mol) i ka nuipa mole (16.0 g/mol, nona ka 12.0 g/mol he kalapona) hōʻike i ka methane, ʻo ia ka hydrocarbon maʻalahi loa, e hoʻohua i ka wela no kēlā me kēia ʻāpana nui (55.7 kJ/g) ma mua o nā hydrocarbons paʻakikī ʻē aʻe. Ma nā kūlanakauhale he nui, hoʻolele ʻia ka methane i nā hale no ka hoʻomehana ʻana a me ka kuke ʻana. Ma kēia poʻomanaʻo, ʻike mau ʻia ʻo ia he kinoea maoli, i manaʻo ʻia he ʻike i ka ikehu o 39 megajoules no ka mika cubic, a i ʻole 1,000 BTU no kēlā me kēia kapuaʻi cubic maʻamau.

Hoʻohana ʻia ka Methane ma ke ʻano o ke kinoea kūlohelohe i hoʻopili ʻia ma ke ʻano he wahie kaʻa a ua ʻōlelo ʻia he ʻoi aku ka maikaʻi o ke kaiapuni ma mua o nā wahie fossil ʻē aʻe e like me ka gasoline/petrol a me ka diesel. .

3.Liquefied kinoea maoli
ʻO ke kinoea kūlohelohe wai (LNG) he kinoea kūlohelohe (ka nui o ka methane, CH4) i hoʻololi ʻia i ke ʻano wai no ka maʻalahi o ka mālama ʻana a i ʻole ka lawe ʻana. Pono nā pahu LNG nui e lawe i ka methane.

ʻO ke kinoea kūlohelohe wai e noho ana ma kahi o 1/600th ka nui o ke kinoea maoli ma ke kūlana kinoea. ʻAʻohe ona, ʻaʻohe kala, ʻaʻohe mea ʻawaʻawa a ʻaʻole ʻino. Loaʻa i nā pōʻino ke ahi ma hope o ka hoʻohu ʻia ʻana i loko o kahi kūlana kinoea, ka hau, a me ka asphyxia.

4.Liquid-methane rocket wahie
Hoʻohana ʻia ka methane wai i hoʻomaʻemaʻe ʻia ma ke ʻano he wahie.

Nui ka methane ma nā ʻāpana he nui o ka ʻōnaehana Solar a hiki ke ʻohi ʻia ma ka ʻili o kekahi kino ʻōnaehana solar (ʻoi aku ka hoʻohana ʻana i ka hana methane mai nā mea kūloko i loaʻa ma Mars a i ʻole Titan), e hāʻawi ana i ka wahie no ka huakaʻi hoʻi.

5.Kemika meaʻai
Hoʻololi ʻia ka Methane i ke kinoea synthesis, kahi hui o ka carbon monoxide a me ka hydrogen, ma o ka hoʻoponopono ʻana i ka mahu. Hoʻohana kēia kaʻina hana endergonic (koi i ka ikehu) i nā catalysts a koi i nā mahana kiʻekiʻe, ma kahi o 700-1100 °C.

Nā hana kōkua mua

Makamaka:ʻAʻohe koi no ke kinoea. Inā kānalua ka hau, holoi i nā maka me ka wai anuanu no 15 mau minuke a loaʻa koke i ka lāʻau lapaʻau.
SkinContact:ʻAʻohe mea i koi ʻia nogas. No ka hoʻopili ʻana i ka ʻili a i ʻole i manaʻo ʻia he hau hau, wehe i nā lole i haumia a holoi i nā wahi i hoʻopili ʻia me ka wai mehana luke. MAI HOʻohana i ka wai wela. Pono ke kauka e ʻike koke i ka mea maʻi inā pili ka huahana i ka poha ʻana o ka ʻili a i ʻole ka ʻiʻo maloʻo hohonu. .
Inhalation:NO KA HOIKE ANA I KA LAAU ANA I NA MEA A PAU O KA PALAPALA PALAPALA. E LAKOAKOIA KA POE HOOHALA ME NA LAKO HANUNGA. Pono e kōkua ʻia ka poʻe i hoʻopau ʻia me ka ʻike i kahi wahi i hoʻohaumia ʻole ʻia a hoʻomake i ka ea hou. Inā paʻakikī ka hanu ʻana, e hāʻawi i ka oxygen. Pono e hoʻoneʻe ʻia ka poʻe ʻike ʻole i kahi wahi i hoʻohaumia ʻole ʻia a, inā pono, hāʻawi ʻia i ke ola kino a me ka oxygen hoʻohui. Pono nā lāʻau lapaʻau e hōʻailona a kākoʻo.
ʻai:ʻAʻohe ma lalo o ka hoʻohana maʻamau. E kiʻi i ka lāʻau lapaʻau inā loaʻa nā hōʻailona.
Kauka noke:E mālama i ka hōʻailona.

Methane waho
Ua ʻike ʻia ka Methane a i ʻole i manaʻo ʻia aia ma nā hīkū āpau o ka ʻōnaehana solar a me ka hapa nui o nā mahina nui. Me ka ʻokoʻa paha o Mars, ua manaʻo ʻia ua hele mai ia mai nā kaʻina abiotic.
Methane (CH4) ma Mars - nā kumu kūpono a me nā poho.
Ua manaʻo ʻia ʻo Methane ma ke ʻano he rocket propellant ma nā mikiona Mars e hiki mai ana ma muli o ka hiki ke synthesizing ia ma ka honua ma o ka hoʻohana ʻana i nā kumuwaiwai in situ.[58] Hiki ke hoʻohana ʻia ka hoʻololi ʻana o ka hopena methanation Sabatier me kahi moena catalyst hui ʻia a me ka hoʻololi ʻana i ka wai-ea i loko o ka reactor hoʻokahi e hana i ka methane mai nā mea maka i loaʻa ma Mars, me ka hoʻohana ʻana i ka wai mai ka lepo Martian a me ka carbon dioxide i ka lewa Martian. .

Hiki ke hana ʻia ka methane e kahi kaʻina hana ola ʻole i kapa ʻia ʻo ''serpentinization[a] e pili ana i ka wai, carbon dioxide, a me ka mineral olivine, i ʻike ʻia he mea maʻamau ma Mars.