Izixhobo zokuthambisa igesi yendalo

Intshayelelo

Izixhobo zokuthambisa igesi yendalo ezisebenzisa isihluzo semolekyuli (desulfurization), ezikwabizwa ngokuba kukususwa kwesulfide yesihluzo semolekyuli kwigesi yendalo, sisixhobo esibalulekileyo ekususweni kwe-H2S kwigesi yendalo kunye nonyango lwegesi yendalo.

Ukuhamba kwenkqubo

Le yunithi isebenzisa iinkqubo ezintathu zeenqaba, enye yokufunxa inqaba, enye yokuvuselela inqaba kunye nenye yokupholisa inqaba. Emva kokususa ulwelo lwe-hydrocarbon olufakwe ngaphakathi ngesihluzi segesi yokutya, igesi yokutya ingena kwinqaba yokufunxa i-molecular sieve desulfurization. Amanzi kunye ne-mercaptan kwigesi yokutya zifunxa yi-molecular sieve ukuze kufezekiswe inkqubo yokukhupha amanzi emzimbeni kunye ne-mercaptan adsorption. Igesi ecocekileyo evela ekuphelelweni ngamanzi emzimbeni kunye nokususwa kwe-mercaptan ingena kwisihluzi sothuli lwegesi yemveliso ukuze kususwe uthuli lwesihluzo se-molecular, kwaye emva koko ithunyelwa ngaphandle njengegesi yemveliso.

Ii-molecular seeves kufuneka zivuselelwe emva kokufunxa amanzi athile kunye ne-mercaptan. Emva kokucoca uthuli lwegesi yemveliso, inxalenye yegesi yemveliso ikhutshwa njengegesi yokuvuselela. Emva kokuba igesi ifudunyezwe ukuya kuma-300 ℃ yi-furnace yokufudumeza, inqaba ifudunyezwa kancinci ukuya kuma-272 ℃ nge-molecular seeve desulfurization tower egqibe inkqubo yokufunxa ukusuka ezantsi ukuya phezulu, ukuze amanzi kunye ne-mercaptan efakwe kwi-molecular seeve zikwazi ukwahlulwa kwaye zibe yigesi yokuvuselela etyebileyo ukuze kugqitywe inkqubo yokuvuselela.

Emva kwenqaba yokuvuselela, igesi yokuvuselela etyebileyo ingena kwi-condenser yegesi yokuvuselela ize iphole ukuya kuthi ga kwi-50 ℃, ukuze uninzi lwamanzi luphole, emva koko lwahlulwe ngumhluzi, kwaye igesi yokuvuselela etyebileyo etyebileyo yahlulwe yatshiswa.

Inqaba yesihluzo se-molecular kufuneka ipholiswe emva kokuvuselelwa. Ukuze ibuyiselwe ngokupheleleyo kwaye isebenzise amandla obushushu, igesi yokuvuselela isetyenziswa kuqala njengegesi evuthelayo ebandayo, kwaye inqaba ipholiswa ukuya kuma-50 ℃ ukusuka phezulu ukuya ezantsi ngenqaba yesihluzo se-molecular desulfurization egqibe inkqubo yokuvuselela. Kwangaxeshanye, itshiswa yodwa. Igesi evuthelayo ebandayo ithunyelwa ngaphandle kwenqaba yokupholisa ize idluliselwe kwisithando sokufudumala segesi yokuvuselela ukuze ifudumale. Emva kokufudumeza, inqaba yesihluzo se-molecular desulfurization ivuselelwa njengegesi yokuvuselela engenamafutha. Isixhobo sitshintsha rhoqo emva kweeyure ezi-8.