Yakakwira Hunhu China Mini LNG Yekudyara Fekitori - Skid yakamisikidzwa LNG chirimwa LNG chirimwa skid - Rongteng

Liquefaction gasi rechisikigo, richangodaidzwa kuti LNG, riri kudzoreredza gasi rechisikigo kuita mvura nekutonhodza gasi rine gasi rechisikigo pasi pekumanikidzwa kwakajairika kusvika - 162 ℃. Natural gasi liquefaction inogona kuchengetedza zvakanyanya kuchengetedza uye nzvimbo yekufambisa, uye ine zvakanakira hombe calorific kukosha, kushanda kwepamusoro, kunobatsira kuenzana kwekutonga kwemutoro wemaguta, kunobatsira kuchengetedza kwezvakatipoteredza, kuderedza kusvibiswa kwemaguta uye zvichingodaro.

Liquefaction ndiyo musimboti wekugadzirwa kweLNG. Parizvino, iwo akakura echisikigo gasi liquefaction maitiro anonyanya kusanganisira cascade liquefaction process, yakasanganiswa refrigerant liquefaction process uye liquefaction process ine expander.

Cascade natural gasi liquefaction process inoshandisa akasiyana mafiriji mapoinzi efiriji pasi pekumanikidzwa kwakajairwa kudzikisa tembiricha yefiriji nhanho nhanho kuzadzisa chinangwa chegasi rechisikigo liquefaction.

Mixed refrigerant cycle (MRC) inzira umo marudzi anopfuura mashanu emafiriji akavhenganiswa akawanda, akadai seC1 ~ C5 Hydrocarbons neN2, anoshandiswa semvura inoshanda kudzikamisa, kubuda uye kuwedzera nhanho nhanho kuwana firiji inokwana patembiricha dzakasiyana, uyezve zvishoma nezvishoma kutonhora nekunyungudutsa gasi rechisikigo. Yakasanganiswa refrigerant liquefaction process yakakamurwa kuva akawanda akasiyana marudzi efiriji kutenderera.

Iyo liquefaction process ine expander inoreva maitiro ekunyungudika kwegasi echisikigo nekushandisa yakanyanya kudzvanywa refrigerant kuona reverse Claude kutenderera firiji ine adiabatic kuwedzera kweturbo expander.

Iyo process scheme inonyanya kusanganisira: yekudyisa gasi kudzvanywa inodzora uye metering unit, yakasikwa gasi yekuchenesa unit uye yakasikwa gasi liquefaction unit, refrigerant yekuchengetedza system, refrigerant inotenderera compression system, LNG kuchengetedza uye kurodha unit.

Iro gasi rechisikigo rinopinda muchiteshi rinotanga kupfuura nepakati pekudzvanyirira kudzora uye metering unit, iyo inoziva iyo yekumanikidza mutemo uye metering yeinouya gasi rechisikigo; Gasi rechisikigo rinopinda muchikamu chekuchenesa gasi, uko gasi rechisikigo rinoiswa pasi pekubviswa kwe CO2, kubviswa kweH2S uye kurapwa kwemvura. MDEA process inokurudzirwa kuti decarbonization uye H2S kubviswa, molecular sieve dehydration process ine matatu shongwe OR TEG dehydration process inokurudzirwa kupera mvura; Uye Inokurudzirwa kushandisa yakadzoreredzwa uye yakamanikidzwa BOG yekuvandudza gasi;

Yakanatswa gasi rechisikigo mugasi rechisikigo liquefaction unit, yakavhenganiswa refrigerant (MRC liquefaction process) inokurudzirwa kuti gasi rechisikigo liquefaction; Liquefied LNG inochengeterwa mutangi rekuchengetera, uye mhepo uye yakaderera-tembiricha yekuchengetedza inokurudzirwa kuchengetedza LNG. Imwe yemhepo yakadzika-tembiricha yekuchengetera tangi ine BG compressor, uye BOG compressor inoshandiswa kudzvanya BOG isati yapinda mune molecular sieve dryer Regeneration, zvichienderana ne cryogenic pombi kuti iwane kuiswa.