.Na'urar tantancewa yana cire nitrogen daga iskar gas don shirya don watsa bututun mai. A cewar bayanan Cibiyar Bincike ta Iskar Gas, kashi 17% na ma'ajiyar iskar gas a Amurka tana ɗauke da sinadarin nitrogen mai yawa. Yawancin ƙa'idodin bututun suna buƙatar sinadarin nitrogen mai yawa a cikin iskar gas ya zama ƙasa da 4%. Iskar gas mai yawan nitrogen tana makale ne saboda ba za a iya jigilar ta zuwa kasuwa ta hanyar bututun mai ba. Idan akwai sinadarin nitrogen mai yawa a cikin bututun mai, akwai haɗarin toshewar iskar gas ko ƙonewa mara kyau. Nitrogen kuma yana rage ƙimar kuzarin iskar gas, wanda ke haifar da raguwar BTU da ƙimarsa.
Saboda nitrogen (N2) da methane (CH4) suna da girman kwayoyin halitta iri ɗaya da ƙarancin ma'aunin dielectric, da kuma rashin zaɓin amsawa, kamar carbon dioxide ko hydrogen sulfide a cikin raka'o'in amine, demitrification rabuwa ce mai wahala ta fasaha.
An yi amfani da shaƙar matsi mai ƙarfi (PSA), rabuwa da ƙarancin zafin jiki da kuma shaƙar mai mai laushi don cire nitrogen daga iskar gas.
Adsorption na matsi (PSA) yana amfani da adsorbent don zaɓar abu. raba nitrogen daga methaneSannan ana sake samar da iskar gas daga mai shaye-shaye ta hanyar haɗakar matsi da canje-canjen zafi. Ana amfani da PSA don bushewar iskar gas, cire carbon dioxide, ƙin yarda da iskar da kuma sarrafa ma'aunin hydrocarbon dew.
Rabuwar Cryogenic tana amfani da Rabuwar Cryogenic Thermodynamic Dangane da kwatancen tafasar methane (- 259° F) da nitrogen (- 320° F). Yayin da cakuda ya yi sanyi, methane zai taru kafin nitrogen, ta haka zai raba su biyun.
Tuntuɓi:
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