Methane konewa

Methane ne gaseous sinadaran fili tare da sinadaran dabara CH4. Wannan shi ne mafi sauki wakilin alkanes. Sauran sunayen da wannan kungiya na gudanar da mahadi: iyakance, da cikakken ko paraffinic hydrocarbons. Suna halin da ciwon guda bond tsakanin carbon atoms a cikin DNA, da kuma duk sauran valences na kowane daga cikin carbon atoms suna ma'amala da hydrogen atoms. Domin alkanes mafi muhimmanci dauki kona. Su ƙona ta samar da carbon dioxide gas da ruwa tururi. A sakamakon haka, wata babbar adadin saki sinadaran makamashi, wanda aka tuba a cikin zafi ko na'urar samar da makamashi. Methane ne flammable ruwa da kuma babban bangare ne na iskar gas, wanda ke sa shi wani m man fetur. A zuciya na fadi amfani da halitta m dauki methane konewa. Tun da shi ne a karkashin al'ada yanayi ne mai gas, yana da wuya a safarar a tsawon nisa daga tushen, don haka shi ne sau da yawa pre-liquefied.

A konewa tsari ne da dauki tsakanin methane da oxygen, Ina nufin a cikin sauki alkane hadawan abu da iskar shaka. Wannan samar da carbon dioxide, ruwa da makamashi mai yawa. Konewa na methane za a iya bayyana ta lissafi: CH4 [gas] + 2O2 [gas] → CO2 [gas] + 2H2O [tururi] + 891 KJ. Wancan ne, daya kwayoyin na methane da dauki tare da biyu kwayoyin na oxygen Forms kwayoyin na carbon dioxide da biyu ruwa kwayoyin. Wannan saki zafi makamashi, wanda yake shi ne daidai to 891 KJ. Halitta gas ne tsabta domin kona burbushin haka kamar yadda kwal, man fetur da sauran habaka ne mafi hadaddun a abun da ke ciki. Saboda haka, a lokacin konewa suka emit a cikin iska daban-daban cutarwa sunadarai. Tun da iskar gas, yafi hada da methane (game da 95%), sa'an nan kona shi da wuya samar da-kayayyakin ko su jũya suna da yawa fiye da karami a cikin hali na sauran burbushin habaka.

A calorific darajar methane (55.7 KJ / g) ne mafi girma fiye da na homologues, kamar ethane (51.9 KJ / g), propane (50.35 KJ / g), butane (49.50 KJ / g), ko wasu habaka (itace, kwal, kananzir). Burning methane samar more makamashi. Don samar da mai shekara Lagwani 100 W haske kwararan fitila dole ne ƙona aiki 260 kg na itace, da kuma 120 kg na ci, kananzir ko 73,3 kg, 58 kg ko duk methane, wanda yayi dace da 78,8 m³ na iskar gas.

A sauki alkane ne mai muhimmanci hanya ga wutar lantarki tsara. Wannan na faruwa ta kona shi kamar yadda man fetur tukunyar jirgi, da samar da tururi abin da koran wani tururi inji mai farfela. Har ila yau da methane konewa ake amfani da su samar da zafi flue gas, wanda makamashi sa aiki na gas injin turbin (konewa aiki har sai da inji mai farfela ko injin turbin kanta). A birane da yawa, methane da aka piped cikin gidãjenku m dumama da kuma dafa abinci. Idan aka kwatanta da sauran iri hydrocarbon man fetur kona iskar gas yana da wani karami juyin halitta na carbon dioxide da kuma babban adadin generated zafi.

Konewa na methane da ake amfani da su cimma high yanayin zafi a Tanderu na daban-daban sinadaran masana'antu, misali, manyan-ethylene shuke-shuke. A gas da gauraye da iska kawota ga burners na pyrolysis gagarumar wuta. A konewa aiwatar haifar flue gas da high zafin jiki (700-900 ° C). Su zafi bututu (located a cikin tanderu) a cikin abin da albarkatun kasa cakuda an ciyar da tururi (domin rage coke samuwar a makera shambura). A karkashin mataki na high yanayin zafi, da jam'i na sinadaran halayen, wanda zai haifar da manufa da aka gyara (ethylene da propylene) da kuma byproducts (guduro Tã pyrolysis, hydrogen da methane kasarun adadi, ethane, propane, hydrocarbons, C4, C5, pyrocondensate; kowanne daga cikinsu yana da nasa aikace-aikace misali, pyrocondensate amfani don samar da benzene ko mota da fetur da aka gyara).

Konewa na methane ne mai hadaddun jiki-sinadaran sabon abu dangane da wani exothermic redox dauki, halin da high kwarara kudi da kuma sakin babban adadin zafi, da kuma zafi canja wuri da taro canja wuri tafiyar matakai. Saboda haka, da zane definition cakuda konewa zafin jiki ne mai wuya aiki, tun a Bugu da kari ga abun da ke ciki na man fetur cakuda karfi da tasiri ta matsa lamba da kuma sa hannu zazzabi. Sun kiyaye wata karuwa da konewa zafin jiki Yunƙurin da zafi canja wuri da taro canja wuri matakai taimaka wajen rage. Methane konewa zafin jiki a cikin zane matakai da apparatuses sinadaran samar ƙaddara da lissafi, da kuma data kasance shigarwa (msl, a cikin pyrolysis Tanderu), shi ne auna ta amfani da thermocouples.