Zininzi iindlela zokumisela iinkqubo ezahlukeneyo zeyunithi zokucutshungulwa unyango lwegesi yentloko yomthombo kwayeunyango lwesityalo segesi yendaloOku kulandelayo yindlela eqhelekileyo neqhelekileyo yokwakheka kwegesi yendalo kwimithombo yegesi engadibaniyo. Ibonisa indlela igesi yendalo enganyangwanga ecutshungulwa ngayo ibe yigesi yendalo ukuze ithengiswe, ethuthwa iye kwimarike yabasebenzisi bokugqibela ngemibhobho. Ulwelo lwegesi yendalo (NGL): ipropane, ibutane kunye ne-C5+ (eli ligama eliqhelekileyo le-pentane kunye ne-hydrocarbon enobunzima obuphezulu bemolekyuli). Igesi yendalo yokuqala idla ngokuqokelelwa kwiqela lemithombo ekufutshane kwaye iqale icutshungulwe kwisikhongozeli sokwahlula kwindawo yokuqokelela ukuze susa i-H2O yasimahla(susa amanzi kwigesi yendalo) kunye negesi yendalo econdensate. Amanzi acondensate adla ngokuthunyelwa kwindawo yokuhluza, kwaye amanzi aphathwa aze aphathwe njengamanzi amdaka.
Emva koko, igesi yokutya ithuthwa iye kwisityalo sokucoca igesi ngepayipi, apho ukucocwa kokuqala kudla ngokuba susa iigesi ze-asidi (i-hydrogen sulfide kunye ne-carbon dioxide). Ngenxa yoluhlu lwemisebenzi kunye nemida yokusingqongileyo kwenkqubo ye-amine, ubuchwepheshe obutsha obusekelwe ekusebenziseni ii-membrane ze-polymer ukwahlula i-carbon dioxide kunye ne-hydrogen sulfide kwimithombo yegesi yendalo buye bamkelwe ngakumbi nangakumbi. I-membrane inomtsalane kuba ayidli ii-reagents. Igesi ye-asidi (ukuba ikhona) isuswa ngonyango lwe-membrane okanye i-amine, ize ithunyelwe kwiyunithi yokubuyisela i-sulfur, eguqula i-hydrogen sulfide kwigesi ye-asidi ibe yi-sulfur okanye i-sulfuric acid. Phakathi kweenkqubo ezinokusetyenziselwa ezi nguqu, inkqubo ye-Claus yeyona nkqubo idumileyo yokubuyisela i-sulfur elemental, ngelixa inkqubo yoqhagamshelwano yendabuko kunye ne-WSA (inkqubo ye-sulfuric acid emanzi) zezona teknoloji zisetyenziswa kakhulu ekubuyiseleni i-sulfuric acid. Inani elincinci legesi ye-asidi linokuphathwa ngokutshiswa.
Igesi eseleyo evela kwinkqubo yeClaus idla ngokubizwa ngokuba yigesi yomsila, ize emva koko igesi inyangwe kwiyunithi yonyango lwegesi yomsila ukuze kubuyiselwe i-residual sulfur compound kwaye ibuyiselwe kwiyunithi yeClaus. Ngokufanayo, kukho iinkqubo ezininzi ezinokusetyenziswa ukunyanga igesi yomsila yeyunithi yeClaus. Ngenxa yesi sizathu, inkqubo ye-WSA ikwafanelekile kuba inokwenza unyango lokuzifudumeza kwigesi yomsila.
Inyathelo elilandelayo lesityalo sokunyanga igesi kukusebenzisa ukufunxwa okuvuselelekayo kwi-triethylene glycol (TEG), eyaziwa ngokuba yi-ethylene glycol dehydration, i-deliquescent chloride desiccant, okanye isixhobo se-pressure swing adsorption (PSA) kusetyenziswa isixhobo esiqinileyo se-adsorption ukuze kukhutshwe umphunga wamanzi kwigesi. Ezinye iinkqubo ezintsha, ezinje ngokwahlukana kwe-membrane, nazo zinokuqwalaselwa.
Emva koko iMercury isuswa kusetyenziswa inkqubo yokufunxa njenge-activated carbon okanye i-renewable molecular seeve.
Nangona ingaqhelekanga, ngamanye amaxesha enye yeenkqubo ezintathu isetyenziselwa ukususa nokulahla i-nitrogen:
- Inkqubo yobushushu obuphantsi (isixhobo sokususa i-nitrogen) isebenzisa i-distillation enobushushu obuphantsi. Ukuba kuyimfuneko, inkqubo ingatshintshwa ukuze kubuyiselwe i-helium.
- Kwinkqubo yokufunxa, ioyile engenamafutha okanye isinyibilikisi esikhethekileyo sisetyenziswa njengesifunxi.
- Inkqubo yokufunxa isebenzisa i-activated carbon okanye i-molecular seeve njenge-adsorbent. Ukusebenza kwale ndlela kunokulinganiselwa kuba kuthiwa ibangela ukulahleka kwe-butane kunye nee-hydrocarbons ezinzima.
Qhagamshelana nathi:
Izixhobo zokuZenzekelayo zaseSichuan Hengzhong Co., Ltd.
www.rtgastreat.com
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Ixesha leposi: Februwari-26-2024