Farfadowar iskar hydrocarbon mai sauƙi yana nufin tsarin dawo da abubuwa masu nauyi na iskar gas idan aka kwatanta da methane ko ethane a cikin siffa ta ruwa. Cakuda propane da butane sun zama iskar gas mai ruwa-ruwa (LPG), kuma abubuwan da ke sama da pentane da pentane sun zama mai sauƙi. tsarin dawo da hydrocarbon mai sauƙi a zahiri tsarin daidaito ne mai matakai biyu na iskar gas da ruwa mai sassa daban-daban. Manufar ita ce a sarrafa ma'aunin raɓar hydrocarbon na iskar gas don biyan buƙatun jigilar iskar gas. Ana iya amfani da samfuran hydrocarbon da aka dawo da su a matsayin mai mai inganci ko kayan masarufi masu inganci, tare da fa'idodi masu yawa na tattalin arziki.
Hanyoyin aiwatarwa don na'urar dawo da hydrocarbon mai sauƙi a gida da waje sun haɗa da shaƙa, shan mai, da kuma rabuwar danshi. A halin yanzu, ana amfani da hanyar rabuwar danshi ko wasu hanyoyin sanyaya ruwa daban-daban waɗanda suka dogara da danshi. Ana haɗa iskar gas ta halitta don dawo da ruwayen hydrocarbons, kuma tsarin ya ƙunshi galibin maganin iskar gas da ba a sarrafa ba, matsewa, bushewar ruwa, sanyaya ruwa, da kuma dawo da danshi. Sanyaya ruwa da kuma dawo da danshi sune manyan hanyoyin da ake bi wajen dawo da danshi mai sauƙi. Ingancin waɗannan hanyoyin yana taka muhimmiyar rawa wajen inganta yawan amfani da ƙananan hydrocarbons, amfani da makamashi yadda ya kamata, da kuma rage amfani da makamashi.
Hanyar shan mai hanya ce ta raba hydrocarbons daban-daban ta hanyar amfani da bambancin narkewar abubuwa daban-daban a cikin iskar gas a cikin man da aka sha (kamar naphtha, kerosene, ko dizal). An yi amfani da wannan hanyar sosai a shekarun 1950 zuwa 1960, kuma har yanzu akwai na'urori da ake aiki a yau, musamman don raba iskar gas mai fashewa a masana'antar tace mai. Man sha gabaɗaya yana amfani da naphtha, kerosene, ko dizal. Ƙaramin nauyin kwayoyin halitta na man da aka sha, mafi girman yawan hydrocarbons masu sauƙi, amma mafi girman asarar ƙafewar man da aka sha. Saboda haka, lokacin da ake buƙatar yawan hexane mai yawa, yakamata a yi amfani da man sha mai ƙaramin nauyin kwayoyin halitta.
Dangane da yanayin zafi daban-daban, hanyar shan mai za a iya raba ta zuwa sha zafin ɗaki, sha zafin jiki na matsakaici, da kuma shaƙar zafi mai ƙarancin zafi.
Zafin sha a zafin ɗaki gabaɗaya yana kusa da 30 ℃, tare da babban mai da hankali kan dawo da ƙananan hydrocarbons na C3+; Zafin sha a matsakaicin zafin jiki yana sama da -20 ℃, kuma yawan C3 yana kusan 40%; Zafin sha a ƙarancin zafin jiki yana kusa da -40 ℃, kuma yawan C3 gabaɗaya shine 80% -90%. A lokaci guda, ana iya dawo da 35% -50% na C2.
Lokacin Saƙo: Afrilu-10-2023