Isithuthi Sokuhlanzwa Kwemoto Ne-Desulfurization Unit | Izinhlelo Zokusebenza Ngokuphelele

Incazelo

·Inkcazo yendlela yokususa umlilo we-Molecular Sieve:

Emva kokukhupha ukhaboni, igesi yamandla ingena eToweni A yokumeka, lapho amanzi akhokhelwa ngokukhetha yi molecular sieve bed. Igesi esuswe emuva ekhulula ukugcina kwezimali ≤ -60°C bese isendelwa phansi. Emva kokugcina kwamandla, Towere B ihlanjiswa ngenqubo yokubuyisa: igesi esuswe emuva noma inyuthini iyashiselwa kwiheiti bese isetshenziswa ukucwasa ngokudluliselwa ku-molecular sieve bed. Amakhulu okugcina akhokhelwa kusihlwanjini kanye asungulwe kusihambe. Ngemuva kwalokho, igesi esuswe emuva esibindi setshenziswa ukusabela phambi kwesihlwanjini ku-40°C, ukuqeda ukubuyisana kusimemeza. Izitoweri ezimbili zihlanjiswa ngokuzenzakalelayo ngamatshini aphrogramekile, ngehora yokuqala ye-8–12.

·Umbiko wokwenza okwesibindi + Umbiko wokwenza Okusekelwe ku-Temperature Swing (TSA):

Emva kokususa umlilo ngomkhumbi we-molecular sieve, igesi yamva ikhona kwi-plate-fin heat exchanger ukulahlaza kabusha, okwakhiwa kumcondensela okuncane kwe-C₅+ imitholwane engenahlobo. Kantiya kulahlaziywa ngokugqagqayo ngendlela ye-turbo-expander noma ingcindezi egcinezileyo, kwaye igazi (lenzeke LPG/NGL) isungulwa kwi-low-temperature separator. Imitholwane engenahlobo ephakathi kwigasi ikhona kwi-TSA molecular sieve adsorption tower, apho imitholwane engenahlobo isungulwa ngokukhethileyo. Igasi eliselayo, enenani lezinto ezingenahlobo ≤ 20 mg/Nm³, lithunyelwa kwi-yuniti ye-liquefaction. Emva kokugcwalisa ngokusungulwa, igasi eligcweleyo elilahlaziywa lukhuselelwa ukwenza ukusabela kwakhona. Imitholwane engenahlobo ethathwa iyuqhafuza kwaye ihlanjululwe, kwaye igasi lokujikeleza liyisetyenziso njengegasi lokusiza.

·Ukudweba Okugcweleyo Ngokwahlulwa Kwiganja:

Emva kokusilwa kwehydrocarbon, igesi ethile ikhulula ukwenta umlando ngenitrojini yasendlelini kanye nemethane yaphansi kwisahluko sokulima okuqala ukuze kulahlwe ubomi bokukhanya kwaye kubeke ngokuncinci ihydrocarbons ezikhulu. Emva koko ihluka kumthwalo wamandla, apho ikhazimula kakhulu kuya ku-162°C ngomthwalo ophathelene we-DMR futhi ingene ekedini lenitrojini. Initrojini yasendlelini isabalaliswa ngokugcwele kumkhiqizo, ngelixa imethane yaphansi isabelaliswa kumthwalo wamandla futhi iphinde ilinde, ihlanza uhlelo lwesithuthi. Imethane yaphansi iyaphinde ikhanyiswe kubomi bokuphela kwaye inikezwa njengegesi yezimpahla. Initrojini engcwele yasendlelini isetshenziswa njengegesi yesidumo emva kokurholophwa kwegesi esigxenyeni, ihlanganisa ukurhweleka kwegesi.