Umgangatho oPhezulu waseTshayina weYunithi yeGas Desulfurization Unit - Ukutyibilika kunyango lwerhasi yomsila – eRongteng

Inkcazo

Ukutyibilika kwegesi yomsila wegesi yendalo isetyenziswa ikakhulu ukujongana nerhasi yomsila yesixhobo sokubuyisela isulfure, kunye nerhasi yenkunkuma yechibi lesulfure elulwelo kunye ne-TEG yenkunkuma yegesi yesixhobo sokuphelelwa ngamanzi emzimbeni kwisixhobo sokubuyisela isulfure.
Uyilo kunye nomthamo wokucubungula we-skid uhambelana nesixhobo sokubuyisela isulfure kunye nesixhobo sokuphelelwa ngamanzi emzimbeni.
Irhasi yendalo yomsila wonyango lwe-skid inokwahlulwa ngokweendidi ezine

1. Ukunciphisa kunye nenkqubo yokufunxa
Umgaqo wokunciphisa kunye nenkqubo yokufunxa kukuba irhasi yomsila i-hydrogenated, amacandelo aqulethe isulfure kwirhasi yomsila ayancitshiswa abe yi-H2S, i-H2S eveliswayo ikhethwa ngokukhethiweyo yindlela ye-amine, kwaye ekugqibeleni ukuhlaziya okanye igesi ikhutshwe ukungena kwiyunithi ye-Claus ukuze iphendule ukujikeleza. Inkqubo ye-Hydrogenation inotyalo-mali oluphezulu kunye neendleko eziphezulu zokusebenza, kodwa isetyenziswa ngokubanzi kumazwe kunye nemimandla eneemfuno eziphakamileyo zokusingqongileyo kuba inokufikelela kwisivuno esiphezulu sesulfure, esingaphezu kwe-99.8%.

2 Inkqubo yokufunxa nge-oxidation
Indlela yokufunxa i-oxidation yindlela eqala ngokudibanisa i-sulfide kwirhasi yomsila ukuya kwi-SO2, emva koko ifunxe i-SO2 kunye nesisombululo (okanye isinyibilikisi), kwaye ekugqibeleni iyibuyisele ngendlela yesulfate, i-sulfide kunye ne-SO2.
Zininzi iindlela ezizezolu hlobo, uninzi lwazo zisetyenziselwa ukukhutshwa kwerhasi ye-flue desulfurization okanye unyango lwerhasi yomsila evela kwizinyibilikisi kunye nezityalo ze-sulfuric acid, kunye nendlela ye-Wellman Lord isetyenziselwa unyango lwegesi yomsila weClaus.

3. Inkqubo yeClaus yobushushu obuphantsi
Itekhnoloji yeClaus yobushushu obuphantsi ibonakala ngokusabela kukaClaus ngaphantsi kwendawo yombethe wesulfure, ngoko ikwabizwa ngokuba yinkqubo yokubuyisela isulfure kwindawo engaphantsi kombethe. Ukusabela kukaClaus yinkqubo eyomeleleyo yokusabela exothermic. Ngoko ke, ukushisa okuphantsi kuhambelana nokutshintshwa kokulingana ukuya kwicala lesizukulwana sesulfure, esinokuphucula ukubuyiswa kwesulfure. Ngokobudlelwane phakathi kwe-Claus reaction kunye neyunithi, inkqubo yeClaus yeqondo lokushisa eliphantsi inokwahlulwa ibe yinkqubo ezimeleyo yeClaus yeqondo lokushisa eliphantsi kunye nenkqubo yokushisa ephantsi kweClaus.

4. Inkqubo ye-oxidation yesigaba solwelo ngqo
Inkqubo ye-oxidation yesigaba solwelo luhlobo lwetekhnoloji yenkqubo ethi ngokuthe ngqo i-H2S i-oxidizes kwi-elemental sulfur. Umgaqo wale nkqubo kukufunxa i-H2S kwirhasi yomsila kunye nesisombululo se-desulfurization, kwaye emva koko i-oxidize ivelise i-elemental sulfur.

Iiparamitha zobugcisa

1 SO2 ≤ 400mg/Nm3 (isiseko esomileyo, 3vol% O2)
2 Ixesha lonyaka lokuvelisa iiyure ezingama-8000
3 Ukusebenza bhetyebhetye 50% ~ 120%