Ukukhethwa kwenkqubo yokuphelelwa ngamanzi emzimbeni yokususa amanzi kwigesi yendalo
Intshayelelo yeNkqubo
Ukubakho kwamanzi kwigesi yendalo kudla ngokukhokelela kwimiphumo emibi: amanzi kunye negesi yendalo zenza i-hydrate phantsi kweemeko ezithile, ezithintela imibhobho; ukongeza, ukuze kuhlangatyezwane neempawu zomgangatho womthamo wamanzi (okanye i-dew point) weemveliso zegesi yendalo, ukuphelelwa ngamanzi emzimbeni kuyimfuneko.
I ukuphelelwa ngamanzi emzimbeni ngegesi yendalo Inkqubo ngokubanzi ibandakanya:
- Ukuphelelwa ngamanzi emzimbeni kubushushu obuphantsi
- Ukufunxwa kwe-desiccant eqinileyo
- Ukufunxwa kwesinyibilikisi
- Ukwahlulwa kwe-membrane
Ukuphelelwa ngamanzi emzimbeni okubandayo okuphantsi kuqhele ukudityaniswa ukubuyiswa kwe-hydrocarbon ekhanyayo iiprojekthi. Xa igesi yendalo iphelelwa ngamanzi ngenxa yokwahlulwa kwengqele, igesi yendalo kufuneka ibe noxinzelelo oluphezulu okanye umthombo wangaphandle obandayo. Ekubeni kufuneka icinezelwe okanye kubonelelwe umthombo wangaphandle obandayo, ayibizi kakhulu kwesi sixhobo.
Iindlela eziqhelekileyo zokufaka amanzi kwi-desiccant eqinileyo yindlela ye-silica gel, indlela ye-molecular sieve okanye indibaniselwano yezi ndlela zimbini. Iindleko zotyalo-mali kunye nokusebenza kwesixhobo sendlela yokufaka amanzi ziphezulu kunezo zesixhobo sokufaka amanzi kwi-glycol.
Ukufunxwa kwe-solvent yeyona ndlela isetyenziswa kakhulu. Nangona kukho izinyibilikisi ezininzi onokukhetha kuzo, uninzi lwezixhobo zisebenzisa izinyibilikisi ze-glycol. Uthelekiso lwezinyibilikisi ezahlukeneyo zokuphelelwa ngamanzi emzimbeni luboniswe kwitheyibhile yothelekiso lwezinyibilikisi zokuphelelwa ngamanzi emzimbeni.
Ukuthelekiswa kwezinyibilikisi zokuphelelwa ngamanzi emzimbeni
| Isinyibilikisi sokuphelelwa ngamanzi emzimbeni | inzuzo | ukusilela | Ingxelo |
| Isisombululo samanzi se-calcium chloride | Iindleko zokusebenza eziphantsi kunye nezixhobo ezilula | Izixhobo zibolile kakhulu, ithontsi lombethe lincinci (malunga ne-11°C), kwaye i-H2S kwigesi yendalo iya kwenza imvula. | Ayisetyenziswa rhoqo ngoku, isetyenziswa kakhulu kwiindawo ezinegesi ezikude nakwiindawo ezibandayo kakhulu. |
| Isisombululo samanzi seLithium chloride | Iqondo lombethe linokuhla liye kuma-22 ~ 36℃, nto leyo engabangeli monakalo kangako kwizixhobo kunesisombululo samanzi se-calcium chloride. | Ibiza kakhulu | Isetyenziselwa kakhulu ukuphelisa amanzi emzimbeni |
| Isisombululo seDiethylene glycol | Isisombululo esixineneyo asiyi kuqina, isinyibilikisi sizinzile kubushushu bokusebenza, sinobumanzi obuphezulu | Iqondo lombethe lincitshiswa ngama-28℃, eliphantsi kunelesisombululo se-triethylene glycol. Ukulahleka kokuthwala kukhulu kunele-triethylene glycol, kwaye utyalo-mali lwesixhobo luphezulu. | Ayisetyenziswa kakhulu kwishishini legesi yendalo |
| Isisombululo se-triethylene glycol | Isisombululo esixineneyo asiyi kuqina, isinyibilikisi sizinzile kubushushu bokusebenza, kwaye i-hygroscopicity iphezulu kakhulu. Uxinzelelo lomphunga luphantsi, ilahleko yokuhamba incinci, kwaye iqondo lomhlwa linokwehla liye kuma-40℃ | Utyalo-mali lwesixhobo luphezulu, kwaye isisombululo sinotyekelo oluthile lokukhupha igwebu | Yeyona ndlela yokuphelisa amanzi emzimbeni esetyenziswa kakhulu kwishishini legesi yendalo |
Ekubeni i-triethylene glycol ine-dew point drop enkulu, ixabiso liphantsi kwaye isebenza ngokuthembekileyo, yeyona ingabizi kakhulu phakathi kwee-glycol compounds. Ke ngoko, esi sixhobo sisebenzisa i-triethylene glycol yokuphelisa ukuphelelwa ngamanzi emzimbeni.
Ukwakhiwa kwezixhobo zenkqubo
1) Iyunithi yokuphelisa amanzi emzimbeni yeTriethylene glycol:
(1) Inqaba yokufunxa (kuquka nokuzalisa)
(2) Isitshintshi sobushushu se-TEG esingenagesi
2) Iyunithi yokuvuselela i-triethylene glycol:
(1) Isihluzi somatshini esityebileyo seGlycol
(2) Isihluzi sekhabhoni esisebenza ngolwelo olutyebileyo lweGlycol
(3) Itanki yesikhuseli segesi yepetroli
(4) I-Triethylene glycol lean-rich ulwelo heat exchanger
(5) Impompo yokujikeleza kwe-triethylene glycol
(6) Isixhobo esidibeneyo sokuhlaziya i-triethylene glycol siquka:
(a) Inqaba yokuvuselela i-triethylene glycol
(b) I-TEG reboiler.
(c) Itanki yeTriethylene glycol
(d) Isitshisi
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