Methane e combustion e

Methane e ke gaseous lik'hemik'hale komponeng le lik'hemik'hale moralo CH4. Sena ke moemeli bonolo ea alkanes. mabitso a mang bakeng sa sehlopha sena sa metsoako manyolo: fokotsa, ba phelelang kapa hydrocarbons paraffinic. Di tšoauoa ka ho ba le kamano e le 'ngoe pakeng tsa liathomo k'habone ka molek'hule,' me valences tsohle setseng tsa e mong le e tsa liathomo k'habone ba phelelang ho ka liathomo hydrogen. Bakeng sa alkanes ba itšoara joang bohlokoa ka ho fetisisa ke bo tukang. Ba chesa ho theha carbon dioxide e khase le mouoane ea metsi. Ka lebaka leo, e le palo e khōlō ea lokolloa lik'hemik'hale matla, e leng e fetoloa mocheso kapa eneji, le motlakase. Methane e ke chang mokelikeli le motsoako o ka sehloohong oa khase ea tlhaho, e leng etsa hore ho le mafura motle. Ka pelo tsa tšebeliso bophara oa tlhaho magala itšoara joang ke methane e tuka ga molelo. Kaha ho ke ke tlas'a maemo a tlwaelehileng ke khase, ho ke ho le thata ho tsamaisa holim'a sebaka se selelele ho tloha mohloli, kahoo hangata ho ea pele ho liquefied.

Tsela combustion e ke itšoara joang pakeng tsa methane e le oksijene, i.e. ka bonolo alkane ho kena moea. Sena se hlahisa carbon dioxide, metsi le e ngata matla. Combustion e ea methane e ka hlalosoang ke abel ho: CH4 [khase] + 2O2 [khase] → CO2 [khase] + 2H2O [mouoane] + 891 KJ. Ke hore, molek'hule e 'ngoe ea methane e ka itšoara joang le limolek'hule tse peli tsa oksijene e bopa e molek'hule tsa carbon dioxide le limolek'hule tsa metsi tse peli. Sena bei mocheso matla, eo e lekana le 891 KJ. khase ea tlhaho ke hloekileng ho chesetsoang magala e le mashala, oli le tuki tse ling tse rarahaneng ho feta ka sebopeho. Ka lebaka leo, nakong ea combustion e ba emit ka moea lik'hemik'hale fapaneng kotsi. Ho tloha ka khase ea tlhaho haholo-holo a qapa ea methane e (ka 95%), ebe o tukang e hang o hlahisa ka lihlahisoa-kapa chenchana tsa bona li le nyenyane haholo ho feta tabeng ea tuki tse ling magala.

The lik'halori boleng ba methane e (55.7 KJ / g) e phahame ho feta homologues lona, tse kang hlahisoang moo ethane (51.9 KJ / g), Propane (50.35 KJ / g), butane (49.50 KJ / g), kapa tse ling tse tuki (patsi, mashala, parafine). Tukang methane e hlahisa matla a eketsehileng. Ho fana ka bakeng sa selemo litleloubu 100 W bulbs lokela ho chesa tshebetso lik'hilograma 260 tsa patsi, 'me boima ba lik'hilograma tse 120 tsa mashala, parafine kapa lik'hilograma 73,3, lik'hilograma tse 58 kapa kaofela ha methane e, e leng tšoana le 78,8 m³ tsa khase ea tlhaho.

The alkane bonolo ke mohlodi bohlokoa ho isa molokong o motlakase. Hlahellang ke tukang e le mafura a tanka, generating mouoane eo lehlanya turbine le mouoane. E boetse e le methane e combustion e e sebelisoa ho hlahisa chesang flue likhase, eo eneji, le ho etsa hore tshebetso ya turbine le khase (combustion e sebetsa ho fihlela motlakase kapa ho turbine ka boeona e). Metseng e mengata, methane e se lipompo tsa ka malapeng bakeng sa futhumatsang ruuoang le pheha. Ha ho bapisoa le mefuta e meng ea mafura hydrocarbon tukang khase ea tlhaho e na le e nyenyane ho iphetola ha lintho tsa carbon dioxide 'me e khōlō palo ya mocheso generated.

Combustion e ea methane e e sebediswa ho fihlela mocheso ho phahameng ka ho sebopi sa liindasteri tse sa tšoaneng tsa lik'hemik'hale, tsa dimela mohlala, moholo-ethylene. The khase ea tlhaho e kopane le moea fuoa ho burners tsa pyrolysis sebōpi. Tsela combustion e etsa chelete likhase flue le mocheso phahameng (700-900 ° C). Ba futhumatsa phala (teng ka hare ho sebōpi) oo motsoako lintho tse bonahalang e tala e fepa le mouoane (e le hore ho fokotsa Coke sebopeho ka methapo sebōpi). Tlas'a bohato la thempereichara e phahameng, e plurality ea lik'hemik'hale, e leng tla le fe dikarolo tsa hlaseloa (ethylene le propylene) le byproducts (lehoakhoa boima pyrolysis, hydrogen le methane e le likaroloana, ethane Propane, hydrocarbons, C4, C5, pyrocondensate; e mong le e ba bona ba nang le kopo ea eona Ka mohlala, pyrocondensate sebelisoa ho hlahisa benzene kapa dilenaneo peterole dikarolo).

Combustion e ea methane e ke e rarahaneng 'meleng-lik'hemik'hale ketsahalo e thehiloeng e exothermic redox itšoara joang, tšoauoa ka e le palo e phahameng ea phallo le ho lokolla ngata haholo ea mocheso,' me phetiso mocheso le dithulaganyo boima phetiso. Ka lebaka leo, moralo tlhaloso motsoako combustion e mocheso ke mosebetsi o thata, kaha ho phaella ho ea ho hlophisoa ha motsoako mafura ka matla ho susumetsa khatello ea lona le mocheso ka lekhetlo la pele. Ba o ile a re e leng keketseho ea phahama combustion e mocheso le phetiso mocheso le dithulaganyo boima phetiso kenya letsoho hore ho phokotso lona. Methane e combustion e mocheso ka dithulaganyo moralo le didiriswa tse di tlhahiso ea lik'hemik'hale e behilweng ke manolotsoeng, le ditlhomo o teng (mohlala, ka sebopi le pyrolysis), e lekanya ho sebedisa thermocouples.