20 MMSCFD umzi-mveliso wokucoca igesi yendalo kunye nomzi-mveliso wokucoca igesi yendalo

Ukulungiswa kwegesi yendalo yinkqubo yokususa umphunga wamanzi, ihydrogen sulfide, i-mercaptan, kunye ne-carbon dioxide kwigesi yendalo. Izixhobo eziphambili ziquka iyunithi yokuphelisa amanzi emzimbeni, iyunithi yokususa i-sulfurization, iyunithi yokususa iicarbonizationkunye ukubuyiswa kwe-hydrocarbon ekhanyayo iyunithi.

Ukuphelelwa ngamanzi emzimbeni

Iinkqubo ezisetyenziswa kakhulu kumanzi egesi yendalo ziquka ukufuma okuphantsi kobushushu, ukufunxwa okuqinileyo, ukufunxwa kolwelo, kunye neendlela zokusebenzisa iikhemikhali.

Indlela yokuhluza i-molecular yindlela yokuphelelwa ngamanzi emzimbeni esetyenziswa kakhulu kwiinkqubo zokwahlulwa kwe-condensation kumaqondo obushushu aphantsi, njengenkqubo yokubuyisela i-condensate yegesi yendalo (NGL) kunye neenkqubo zokuphelelwa ngamanzi emzimbeni ekuvelisweni kwegesi yendalo enyibilikisiweyo (LNG). Ukongeza, ukuphelelwa ngamanzi emzimbeni ngesihluzo se-molecular kukwafuneka ekuvelisweni kwegesi yendalo ecinezelweyo esetyenziswa njengepetroli kwiimoto.

I Inkqubo yokuphelelwa ngamanzi emzimbeni ye-TEG ifanelekile ekuphelelweni ngamanzi kwigesi yendalo kunye nesantya esiphezulu sokuhamba kwamanzi kunye neemfuno zokunciphisa amachaphaza omhlwa aphezulu.

Ukususwa kwe-CO2

Kukho iindlela ezimbini eziphambili zokususa i-CO2 kwigesi yendalo: indlela yokufunxa i-solvent kunye nendlela yokufunxa i-acid.

Indlela yokufunxa i-solvent esetyenziswa kakhulu sisisombululo se-MDEA, kwaye inkqubo ibandakanya inqaba yokufunxa kunye nenqaba yokuvuselela.

Ukususwa kwekhabhoni kwi-PSA luhlobo lwendlela yokufunxa, olusekelwe kakhulu kubuchwepheshe bokufunxa igesi ngokujika koxinzelelo, olufezekisa ukwahlulwa nokucoca igesi ngokutshintsha iimeko zoxinzelelo rhoqo.

Ukususwa kwesulfurization

Kukho iindlela ezimbini eziphambili zokususa i-sulfurization yegesi yendalo: ukususa i-sulfurization eyomileyo kunye nokususa i-sulfurization emanzi.

I inkqubo ye-amine iyasebenza xa igesi yendalo inomlinganiselo omncinci we-H2S kunye nomlinganiselo ophezulu we-CO2/H2S, kodwa umxholo we-CO2 awuphezulu kakhulu kwaye awufuni ukususwa kwe-CO2 enzulu. Le ndlela ingazisusa ngempumelelo zombini i-H2S kunye ne-CO2 ngaxeshanye.

Indlela yokuhluza i-molecular isetyenziswa kakhulu kwizicelo ezifuna ukuchaneka okuphezulu kokususa i-sulfurization okanye amazinga aphantsi okuhamba kwamanzi.

I Inkqubo ye-LO-CAT isebenzisa isisombululo samanzi esenziwe ngee-sulfates, i-complexed iron, izongezo (ii-surfactants, ii-defoamers, kunye nee-fungicides) ukuze i-desulfurization isuswe kwi-sulfur. Indlela ye-Lo-Cat ifanelekile kunyango lwegesi ye-asidi eyahlulwe ziikhemikhali okanye iindlela zokufunxa ngokwasemzimbeni. Ngenxa yoluhlu lwayo olubanzi lokucubungula, ukuguquguquka okuphezulu kokusebenza, ukukhetha okuphezulu, kunye nobuhlobo nokusingqongileyo, iye yaba bubuchwepheshe obukhethwayo kwiinkqubo zokubuyisela i-sulfur ezincinci.

Ukususwa kweMercaptan

Ukususwa kwe-mercaptan ngegesi yendalo kudla ngokusebenzisa indlela ye-sulfinol kunye nenkqubo ye-hydrodesulfurization yokususwa kwe-mercaptan.

Indlela ye-sulfinol ineengenelo zokusetyenziswa kwamandla aphantsi, ukususa i-organic sulfur, amandla amakhulu okucubungula izixhobo, ukubola okukhanyayo, ukugqwala okuphantsi, kunye nokonakala kwesinyibilikisi esikhanyayo. Ifanelekile ngakumbi xa uxinzelelo oluncinci lweegesi ze-asidi kwigesi yokutya luphezulu. Le ndlela ayinakufezekisa ukususwa kwe-sulfurization enzulu kwaye isetyenziswa rhoqo ekususweni kwe-crude sulfur. Kufuneka isetyenziswe kunye nezinye iindlela.

Inkqubo yokususa i-hydrodesulfurization mercaptan kuqala iguqula i-organic sulfur ibe yi-inorganic sulfur, ize yahlule i-inorganic sulfur ngokusebenzisa indlela yokufunxa.

Ukubuyiselwa kwe-hydrocarbon ekhanyayo

Ukubuyiswa kwe-hydrocarbon ekhaphukhaphu kubhekisa kwinkqubo yokufumana izinto ezinzima zegesi yendalo, njenge-methane okanye i-ethane, kwimo yolwelo. Phakathi kwazo, umxube we-propane butane uba yi-liquefied petroleum gas (LPG), kwaye i-pentane kunye nezinto zayo ezingentla ziba yi-oyile ekhaphukhaphu. Ukubuyiswa kwe-hydrocarbon ekhaphukhaphu ngokubanzi kusebenzisa i-propane refrigeration kunye ne-mixed refrigeration ukuze kufezekiswe iindlela ezahlukeneyo zokubuyisela.