Babban ingancin China Manyan LNG Liquefaction Exporters - 67 ~ 134 TPD skid hawa na'urar sarrafa iskar gas - Rongteng

Bayanin tsarin

Feed ɗin iskar gas ɗin yana shiga cikin tsarin pretreatment na iskar gas bayan tacewa, rabuwa, ƙa'idodin matsa lamba da aunawa. Bayan CO₂, Hg da H₂Ana cire O, ta shiga cikin akwati mai sanyi, wanda aka sanyaya, a zuba ruwa da nitrogen a cikin farantin fin zafi mai zafi, sannan kuma a koma cikin akwatin sanyi don ci gaba da sanyaya, sanyi, matsi da walƙiya zuwa tankin filashi. Rarraba lokacin ruwa yana shiga cikin tankin ajiya na LNG azaman samfuran LNG.

Babban tsari da hanyoyin fasaha na rukunin sune:

Yi amfani da MDEA don cire carbon dioxide;

Ana amfani da sieve na kwayoyin halitta don cire alamar ruwa;

Cire mercury ta sulfur mai kunna carbon da aka kunna;

Yi amfani da madaidaicin abubuwan tacewa don tace sieve kwayoyin halitta da ƙurar carbon da aka kunna

Nitrogen cirewa ta hanyar ƙananan zafin jiki distillation;

MRC (gaɗaɗɗen refrigerant) tsarin sake sake zagayowar refrigerant ana ɗaukarsa don shayar da duk tsaftataccen iskar gas

Tsarin tsari ya haɗa da:

Ma'auni da rabuwa da danyen gas;

Tsarin magani (ciki har da decarburization, cire mercury, bushewa da cire ƙura);

MR proportioning tsarin da MR matsawa wurare dabam dabam tsarin;

LNG tsarin liquefaction;

LNG ajiya da tsarin lodawa.

Bog dawo da tsarin

Feed gas tacewa rabuwa da matsa lamba regulating naúrar

Abincin iskar gas daga sama yana gudana ta cikin bututun a matsa lamba na 5.0 ~ 6.0MpaG yana shigar da mai rarraba iskar gas ɗin iskar gas ɗin bayan an daidaita matsa lamba, kuma ya shiga cikin tsarin ƙasa bayan rabuwa da metering.

Babban kayan aiki shine ciyarwar mai tace iskar gas, mai sarrafa motsi, mai sarrafa matsa lamba, da sauransu.

2) Matsalolin ƙira

Iya aiki: 20×10⁴Nm³/rana

Matsakaicin daidaitawa: 50% ~ 110%

Tsarin magani

Naúrar kashe iskar gas

1) Bayanin tsari

Gas ɗin ciyarwa daga sama yana shiga sashin iskar gas na deacidification, wanda ke amfani da maganin MDEA don cire iskar acid kamar CO.₂da H₂S a cikin iskar gas.

Iskar iskar gas yana shiga daga ƙananan ɓangaren abin sha (hasumiya mai ɗaukar nauyi) kuma ya wuce ta cikin abin sha daga ƙasa zuwa sama; Maganin MDEA mai cikakken sabuntawa (mafifi mai raɗaɗi) yana shiga daga ɓangaren sama na abin sha kuma ya wuce ta cikin abin sha daga sama zuwa ƙasa. Maganin MDEA mai juzu'i da iskar gas ana tuntuɓar gabaɗaya a cikin abin sha, CO₂a cikin iskar gas yana shiga kuma ya shiga cikin ruwa lokaci, kuma abubuwan da ba a sha ba suna fitar da su daga saman abin sha kuma a shigar da mai sanyaya gas na decarbonization da mai rarrabawa. The gas daga decarbonization gas SEPARATOR shiga cikin feed gas mercury cire naúrar, da kuma condensate tafi zuwa flash tank.

Abubuwan da aka bayar na CO₂a cikin iskar gas da aka bi da shi bai wuce 50ppmv ba.

Abubuwan da aka bayar na MDEA Solution absorbing CO₂ana kiransa bayani mai arziki, wanda aka aika zuwa hasumiya mai walƙiya, kuma iskar gas ɗin da ke haskakawa ta hanyar damuwa ana aika zuwa tsarin mai. Bayan musayar zafi tsakanin walƙiya mai wadataccen ruwa da bayani (ruwan raɗaɗi) yana gudana daga ƙasan hasumiya na sabuntawa, haɓaka zafin jiki zuwa ~ 98 ℃ zuwa babban ɓangaren hasumiya, da aiwatar da tsiri farfadowa a cikin hasumiya ta farfadowa har sai matakin durƙusa na ruwa mai raɗaɗi ya kai ga index.

Ruwan da ba shi da tushe daga hasumiyar sabuntawa yana wucewa ta cikin mawadaci da matalauta mai musanya zafi da na'ura mai sanyaya ruwa. Ana sanyaya ruwa mai raɗaɗi zuwa ~ 40 ℃, ana matsa shi ta hanyar famfo ruwa mai raɗaɗi kuma yana shiga daga ɓangaren sama na hasumiya mai sha.

Gas mai fita a saman hasumiya na sabuntawa yana shiga cikin mai raba iskar acid ta hanyar mai sanyaya acid gas, ana aika iskar gas daga iskar gas zuwa tsarin fitar da iskar gas, kuma ana aika condensate zuwa mai raba walƙiya bayan an matsa shi ta famfo mai dawowa.

Tushen zafi na reboiler na hasumiya na sabuntawa yana mai zafi ta hanyar canja wurin zafi.

Babban kayan aikin wannan naúrar shine hasumiya mai ɗaukar nauyi da hasumiya ta sabuntawa.