20 MMSCFD Masana'antar sarrafa iskar gas ta halitta da masana'antar sarrafa iskar gas ta halitta

Sarrafa iskar gas ta halitta ita ce hanyar cire tururin ruwa, hydrogen sulfide, mercaptan, da carbon dioxide daga iskar gas. Babban kayan aikin sun haɗa da na'urar bushewar ruwa, na'urar desulfurization, Na'urar rage gurɓata carbon, kuma farfadowar hydrocarbon mai sauƙi naúrar.

Rashin ruwa

Tsarin da aka saba amfani da shi don ruwan iskar gas ya haɗa da ƙarancin zafi, shan ruwa mai ƙarfi, shan ruwa, da kuma hanyoyin sinadaran reagent.

Hanyar sifewar kwayoyin halitta wata hanya ce ta bushewar iska mai zurfi wadda aka saba amfani da ita a cikin hanyoyin rabuwa da iskar gas mai ƙarancin zafi, kamar dawo da iskar gas mai narkewa (NGL) da kuma hanyoyin bushewar iska a cikin samar da iskar gas mai narkewa (LNG). Bugu da ƙari, bushewar iskar gas mai narkewa ana buƙatar ta don samar da iskar gas mai matsewa da ake amfani da ita azaman mai ga motoci.

The Tsarin bushewar TEG ya dace da bushewar iskar gas ta halitta tare da yawan kwararar ruwa mai yawa da kuma buƙatar rage yawan ruwan da ke shiga.

Cire CO2

Akwai manyan hanyoyi guda biyu na cire CO2 daga iskar gas: hanyar sha da kuma hanyar sha da kuma hanyar sha.

Maganin da aka fi amfani da shi wajen shaye-shaye shine maganin MDEA, kuma tsarin ya ƙunshi hasumiyar shaye-shaye da hasumiyar sabuntawa.

Tsarin PSA decarbonization wani nau'in hanyar shaƙatawa ce, galibi bisa fasahar shaƙatawa ta matsi, wadda ke cimma rabuwa da tsarkakewar iskar gas ta hanyar canza yanayin matsin lamba lokaci-lokaci.

Rushewar sinadarin sulfur

Akwai manyan hanyoyi guda biyu na rage yawan iskar gas: rage yawan fitar da sulfur da kuma rage yawan fitar da sulfur.

The tsarin amine Ana amfani da shi idan iskar gas ta ƙunshi ƙaramin adadin H2S da kuma babban rabon CO2/H2S, amma yawan CO2 ba shi da yawa sosai kuma baya buƙatar cirewa mai zurfi na CO2. Wannan hanyar za ta iya cire H2S da CO2 yadda ya kamata a lokaci guda.

Ana amfani da hanyar sieve ta kwayoyin halitta don aikace-aikace waɗanda ke buƙatar daidaiton desulfurization mai girma ko ƙarancin kwararar ruwa.

The Tsarin LO-CAT yana amfani da ruwan da aka yi amfani da shi wajen magance matsalar sinadarin sulfate, ƙarfe mai rikitarwa, ƙarin sinadarai (surfactants, defoamers, da fungicides) don rage tasirinsa. Hanyar Lo-Cat ta dace da maganin iskar acid da aka raba ta hanyar sinadarai ko hanyoyin sha ta jiki. Saboda yawan sarrafa ta, sassaucin aiki mai yawa, babban zaɓi, da kuma kyawun muhalli, ta zama fasahar da aka fi so don ƙananan hanyoyin dawo da sulfur.

Cire Mercaptan

Cire mercaptan na iskar gas gabaɗaya yana amfani da hanyar sulfinol da tsarin hydrodesulfurization don cire mercaptan.

Hanyar sulfinol tana da fa'idodi na ƙarancin amfani da makamashi, cire sulfur na halitta, babban ƙarfin sarrafawa na kayan aiki, tsatsa mai sauƙi, ƙarancin kumfa, da lalacewar sinadaran haske. Ya dace musamman lokacin da matsin lamba na iskar gas mai tsami a cikin iskar gas ɗin abinci ya yi yawa. Wannan hanyar ba za ta iya cimma zurfin cire sulfur ba kuma ana amfani da ita akai-akai don cire sulfur mai ɗanɗano. Yana buƙatar amfani da shi tare da wasu hanyoyi.

Tsarin cire hydrodesulfurization mercaptan da farko yana canza sulfur na halitta zuwa sulfur mara tsari, sannan ya raba sulfur mara tsari ta amfani da hanyar shaƙatawa.

Farfado da sauƙin hydrocarbon

Farfadowar hydrocarbon mai sauƙi yana nufin tsarin dawo da abubuwa masu nauyi na iskar gas, kamar methane ko ethane, a cikin siffa ta ruwa. Daga cikinsu, cakuda propane butane ya zama iskar gas mai ruwa-ruwa (LPG), kuma pentane da abubuwan da ke sama sun zama mai sauƙi. Farfadowar hydrocarbon mai sauƙi gabaɗaya yana amfani da firiji na propane da firiji mai gauraye don cimma ingantattun hanyoyin murmurewa daban-daban.