Igesi yomsila evela embonini yokuhlanza igesi yemvelo ingaphathwa ngenqubo yokunciphisa ukumuncwa. Umgomo wenqubo yokunciphisa nokumuncwa iwukufaka i-hydrogenation kugesi yomsila, ukunciphisa izingxenye zesibabule kugesi yomsila zibe yi-H2S, ukumunca ngokukhetha i-H2S ekhiqizwe ngendlela ye-amine, bese ekugcineni ivuselela noma ikhiphe igesi, bese ingena kuyunithi ye-Claus yokusabela okujikelezayo. Inqubo ye-hydrogenation inokutshalwa kwezimali okuphezulu kanye nezindleko zokusebenza eziphezulu. Kodwa-ke, ingafinyelela isivuno se-sulfur esiphezulu impela, esingaphezu kuka-99.8%, esisetshenziswa kabanzi emazweni nasezifundeni ezinezidingo eziphezulu zokuvikela imvelo.
Indlela yokunciphisa ukumuncwa ifaka phakathi izinqubo ezilandelayo: Inqubo ye-Scot, inqubo ye-HCR, inqubo yokubuyisela i-sulf, inqubo ye-bsrp kanye nenqubo ye-RAR.
Inqubo ye-Scot okuthiwa yi-Scot ibhekisela kubuchwepheshe bokwelapha igesi yomsila besitshalo se-Claus sulfur saseDutch Shell. Ngokuvamile, inqubo yendabuko ye-Claus (yezigaba ezimbili noma ezintathu) isetshenziselwa ukubuyisa i-sulfur. Izinga lokubuyisa i-sulfur lale nqubo licishe libe ngu-95% ~ 97%. Emphakathini wanamuhla, izidingo zokuvikelwa kwemvelo ziphakeme kakhulu, kanti ukukhishwa okuvunyelwe kuncane kakhulu. Uma iyunithi yokubuyisa i-sulfur inomthamo omkhulu, izinga lokubuyisa liphezulu kakhulu (99% noma ngaphezulu). Kulesi simo, uhlelo lokwelapha igesi yomsila we-super Claus noma we-Scot kufanele lucatshangelwe. Kodwa-ke, uma izinga lokubuyisa lidingeka ukuze lifinyelele ngaphezu kuka-99.5%, i-scot ingasetshenziswa kuphela.
Inqubo ye-HCR ubuchwepheshe benqubo ye-HCR obuthuthukiswe yinkampani yase-Italy i-nigi buyindlela yokunciphisa i-hydrogenation. Isici esiyinhloko sale nqubo ukusebenzisa ukubambezeleka kokushisa kwamaphaphu kanye nokushisa kwamaphaphu kwenqubo yegesi yesithando sokwenza isibabule ukushisa igesi yomsila, ngakho-ke asikho isidingo sokushisa okwengeziwe, ukuze kufezwe ukuphinda kusetshenziswe ukushisa okulahliwe futhi kuncishiswe kakhulu izindleko. Ngaphezu kwalokho, le nqubo ayidingi i-hydrogen eyengeziwe. Isithando somlilo esishisayo se-H2 esibolile yi-Claus section sanele ukunciphisa i-sulfur esele ibe yi-H2S.
Inqubo yokubuyisela i-sulfur inqubo yokubuyisela i-sulfur eyathuthukiswa yinkampani ye-TPA ihlanganisa izinhlobo ezintathu: inqubo yokubuyisela i-sulfur, inqubo yokubuyisela i-sulf-10 kanye nenqubo yokubuyisela i-mm. Ngokufanayo nenqubo ye-Scot, igesi yomsila weyunithi ye-Claus iyashiswa kuqala, bese ixutshwa negesi yokunciphisa exutshwe ne-H2 ukuze kuncishiswe igesi equkethe i-sulfur ku-reactor ibe yi-H2S. Le nqubo ingasetshenziswa ukuthuthukisa izinga lokubuyisa i-sulfur leyunithi ye-Claus ekhona.
Inqubo ye-Bsrp yathuthukiswa ngokubambisana yi-UOP kanye ne-Parsons. Inqubo ye-Bsrp isetshenziswa kakhulu ekwelapheni igesi yomsila weyunithi ye-Claus. Le nqubo isetshenziswe kabanzi emhlabeni wonke.
Izinga lokubuyisa isibabule eliphelele leyunithi ye-Claus / bsrp lingafinyelela ngaphezu kuka-99.8%. I-Bsrp isebenzisa indlela ye-anthrone ukumunca i-H2S. Okuqukethwe kwe-H2S kugesi yomsila ekhishwe kuphansi, kodwa kunezinkinga eziningi zokusebenza.
Ubuchwepheshe be-Rar I-KTI isungule inqubo yokwelapha igesi yomsila ebizwa ngokuthi i-rar (ukunciphisa, ukumuncwa kanye nokuvuselela). Le nqubo isekelwe kuma-amine akhethiwe okunciphisa: isimiso senqubo saziwa kakhulu embonini, okucishe kufane nesezinqubo ezifanayo ezisetshenziswa kwezinye izinhlelo zokusebenza ezifanayo. Inqubo ye-Rar isebenza kahle futhi ithembekile, futhi izinga layo lokubuyisa i-sulfur lingafinyelela ku-99.9%. Yinqubo yokubuyisa i-sulfur esebenza kahle kakhulu kubuchwepheshe obukhona.
Isikhathi sokuthunyelwe: Jan-21-2022