Methane Combustion

Methane chinhu gaseous namakemikari remubatanidzwa pamwe makemikari fomura CH4. Ndiro mumiririri nyore alkanes. Other mazita boka iri Organic yeimwe: vakaomerwa, zvine kana paraffinic Mahydrocarbon. Ivo dzinoratidzwa nokuva rimwe chisungo pakati kabhoni maatomu ari Morekuru, uye vanosara valences ose nechimwe kabhoni maatomu vari zvakazara ne rehydrogen maatomu. Nokuti alkanes anokosha maitiro ndiwo pomoto. Ndivo vanopisira kuumba carbon dioxide inobvisa gasi uye mvura mhute. Somugumisiro, guru uwandu akasunungura namakemikari simba, iyo dzikwanise kupisa kana magetsi simba. Methane iri zvinobata moto mvura uye chikuru chezvinonhuwira negasi, izvo zvinoita kuti anokwezva mafuta. At moyo vakwanise kushandisa rwokuzvarwa Zvisaririra kuita methane combustion. Sezvo zviri pasi chakaipa ezvinhu gasi, zvakaoma kutakura pamusoro refu kubva kupi, saka kazhinji pre-liquefied.

The combustion zvinoitawo maitiro pakati methane uye okisijeni, i.e. ari nyore alkane oxidation. Izvi unobereka carbon dioxide, mvura, uye yakawanda simba. Combustion kuti methane inogona yakarondedzerwa mukana wokuti vanhu vanga: CH4 [gasi] + 2O2 [gasi] → CO2 [gasi] + 2H2O [chiutsi] + 891 KJ. Kureva, mumwe morekuru methane nokuda maitiro pamwe mamorekuru maviri okisijeni anoumba morekuru zviri carbon dioxide inobvisa uye mbiri mvura mamorekuru. Izvi anosunungura kupisa simba, izvo zvakaenzana 891 KJ. Negasi ndiyo yakachena nokupisa Zvisaririra saka sezvo marasha, mafuta nezvimwewo rinochiwedzera zvakawanda dzakaoma sezvamunoita. Naizvozvo, panguva combustion ivo emit mumhepo yakasiyana inokuvadza makemikari. Sezvo negasi ainyanya rinoumbwa methane (anenge 95%), zvino akapisa kashoma unoita ne-zvigadzirwa kana zvavo majana iduku zvikuru pane kuna mamwe Tourism.

The calorific Kukosha methane (55.7 KJ / g) riri kupfuura homologues ayo, akadai ethane (51.9 KJ / g), propane (50.35 KJ / g), butane (49.50 KJ / g), kana zvimwe rinochiwedzera (huni, marasha, neparafini). Kwerusenzi methane unobereka nesimba rakawanda. Kugovera gore Incandescent 100 W chiedza Mabumba vanofanira kupisa kushanda 260 makirogiramu huni, uye makirogiramu 120 marasha, neparafini kana 73,3 makirogiramu, 58 makirogiramu kana zvose methane, izvo unoenderana 78,8 m³ ose negasi.

The nyore alkane chinhu chinokosha chinogona kuti magetsi chizvarwa. Izvi zvinoitika kuburikidza akapisa sezvo mafuta bhaira, generating chiutsi iyo chinoita hwemvura turbine. Uyewo methane combustion inoshandiswa kugadzira kupisa flue magasi, ane simba inoita mashandiro ari gasi turbine (combustion kushanda kusvikira turbine kana turbine pachayo). Mumaguta akawanda, methane nyere mudzimba nezvezvipfuwo kudziyisa uye kubika. Ichienzaniswa nedzimwe mhando yeHydrocarbon chinotsva uchipfuta negasi ane shanduka maduku carbon dioxide inobvisa uye yakawanda kunotangira kupisa.

Combustion pamusoro methane rinoshandiswa kuzadzisa dzakakwirira tembiricha iri yamavira-siyana namakemikari maindasitiri Somuenzaniso, hombe-ethylene zvirimwa. The negasi yakavhenganiswa mhepo akagovera kuna burners ari pyrolysis muvira. The combustion kwacho zvinowanisa flue magasi dzakakwirira tembiricha (700-900 ° C). Ivo kudziyisa nyere (riri mukati mevira) umo mbishi zvinhu muvhenganiswa zvokudya pamwe chiutsi (kuitira kuderedza chemubhotoro inotungamirwa muchoto sepombi). Nokupesvedzera dzakakwirira tembiricha pane yakarongwa nemakemikari, somugumisiro iyo unodikanwa zvinoriumba (ethylene uye propylene) uye-zvigadzirwa (Heavy pyrolysis nebwe, hydrogen methane zvikamu zviduku, ethane, propane, Mahydrocarbon, C4, C5, pyrocondensate; mumwe nomumwe wavo ane pevara ayo Somuenzaniso, pyrocondensate akashandisa kubereka benzene kana injini peturu zvinoriumba).

Combustion kuti methane chinhu chisinganzwisisiki panyama-makemikari Fani kwakavakirwa ane exothermic redox maitiro, dzinoratidzwa yakakwirira kuyerera mwero uye kusunungura pakaitwa kupisa, uye kupisa kuchinjirwa uye vakawanda chinja pezvakaitwa. Naizvozvo, magadzirirwo rondedzero musanganiswa combustion tembiricha iri rakaoma, sezvo kuwedzera Kuronga mafuta musanganiswa kufurira zvakasimba ayo kumanikidzwa netembiricha kwokutanga. Vaichengeta kuwedzera combustion tembiricha simukai nokupisa kuchinjirwa uye vakawanda kuchinjwa pezvakaitwa kukonzera ayo rutapudzo. Methane combustion tembiricha pamasikiro pezvakaitwa uye apparatuses kwemakemikari kugadzirwa anofananidzira kukarukureta, uye zviripo zvivako (semuenzaniso, ari pyrolysis yamavira), zvinonzi akayera uchishandisa thermocouples.