Taxanaha Nitrogen (II) Diyaarinta Nitrojiinka

Soo-saareyaasha Wax-soo-saarka Nitrogen - Warshada Wax-soosaarka Nitrogen-ka Shiinaha iyo alaab-qeybiyeyaal (xinfatools.com)

Nitrojiin waa qaybta ugu muhiimsan ee hawada, qiyaastii 78% hawada. Nitrojiin Elemental N2 waa gaas aan midab lahayn oo aan ur lahayn marka loo eego xaaladaha caadiga ah. Cufnaanta gaaska ee hoos yimaada heerka gobolka waa 1.25 g/l. Barta dhalaalka waa -210 ℃ halka karkarinta -196℃. Nitrojiin dareere ah waa qaboojiye heerkul hoose ah (-196 ℃).

Maanta waxaan soo bandhigi doonaa dhowr siyaabood oo waaweyn oo loogu talagalay soo saarista nitrogen gudaha iyo dibaddaba.

Waxaa jira saddex hababka wax soo saarka nitrogen-cabbirka warshadaha guud: cryogenic hawada kala soocidda nitrogen wax soo saarka, cadaadiska lulid adsorption wax soo saarka nitrogen, iyo soosaarka nitrogen kala soocida xuubka.

Marka hore: Habka wax soo saarka nitrogen ee kala soocida hawada Cryogenic

Soosaarka nitrogen ee kala soocida hawada Cryogenic waa hab wax soo saar dhaqameed oo nitrogen leh oo leh taariikh ku dhawaad ​​dhowr iyo toban sano. Waxa ay hawada u isticmaashaa sidii wax cayriin ah, waxa ay isku cadaadisaa oo ay nadiifisaa, ka dibna waxa ay isticmaashaa kulaylka ay ku badasho si ay hawada ugu shubto hawo dareere ah. Hawada dareeraha ah ayaa inta badan ah isku dhafka oksijiinta dareeraha ah iyo nitrogen dareeraha ah. Dhibcaha kala duwan ee karkaraya ee ogsijiinta dareeraha ah iyo nitrogen dareeraha ah ayaa loo isticmaalaa in lagu kala saaro iyaga oo isticmaalaya hawada dareeraha ah si loo helo nitrogen.

Faa'iidooyinka: wax soo saarka gaas weyn iyo nadiifinta sare ee nitrogen alaabta. Wax soo saarka nitrogen Cryogenic soo saari karaa ma aha oo kaliya nitrogen laakiin sidoo kale nitrogen dareere ah, kaas oo la kulma shuruudaha habka of nitrogen dareere ah oo lagu kaydin karaa in taangiyada kaydinta nitrogen dareere ah. Marka uu jiro culeys nitrogen ah oo kala go'a ama dayactir yar oo ah qalabka kala-soocida hawada, nitrogen-ka dareeraha ah ee taangiga kaydinta wuxuu galaa uumiga oo la kululeeyaa, ka dibna loo diro badeecada dhuunta nitrogen si loo daboolo baahida nitrogen ee unugga habka. Wareegga hawlgalka ee wax soo saarka nitrogen cryogenic (oo tixraacaya inta u dhaxaysa labada kuleyl ee waaweyn) guud ahaan waa in ka badan 1 sano, sidaas darteed wax soo saarka nitrogen cryogenic guud ahaan looma tixgelin sida heegan.

Khasaaraha: Wax soo saarka nitrogen ee Cryogenic wuxuu soo saari karaa nitrogen leh nadiif ah ≧99.999%, laakiin nadiifinta nitrogen waxaa xaddidaya culeyska nitrogen, tirada saxarada, waxtarka saxaarad iyo nadiifinta oksijiinta ee hawada dareeraha ah, iyo qiyaasta hagaajinta waa mid aad u yar. Sidaa darteed, qalab wax soo saarka nitrogen cryogenic, daahirsanaanta alaabta asal ahaan waa la hubaa oo aan ku habboonayn in la hagaajiyo. Maadaama habka cryogenic lagu sameeyo heerkul aad u hooseeya, qalabku waa inuu lahaadaa habka qaboojinta ka hor inta aan la gelin hawlgalka caadiga ah. Waqtiga bilawga ah, taas oo ah, wakhtiga laga bilaabo bilawga balaadhinta ilaa wakhtiga marka nadiifinta nitrogen ay gaadho shuruudaha, guud ahaan maaha wax ka yar saacadaha 12; Ka hor inta uusan qalabku galin dib-u-habaynta, waa inuu lahaadaa wakhti kuleyl iyo dhalaalid, guud ahaan 24 saacadood. Sidaa darteed, qalabka wax soo saarka nitrogen ee cryogenic waa in aan la bilaabin oo la joojiyo si joogta ah, waxaana lagu talinayaa in si joogto ah loo shaqeeyo muddo dheer.

Intaa waxaa dheer, habka loo yaqaan 'cryptogenic' waa mid adag, oo degan dhul ballaaran, wuxuu leeyahay kharashyo badan oo kaabayaal ah, wuxuu u baahan yahay ciidamo dayactir gaar ah, wuxuu leeyahay tiro badan oo ka mid ah hawlwadeennada, wuxuuna soo saaraa gaas si tartiib ah (18 ilaa 24 saacadood). Waxay ku habboon tahay wax-soo-saarka nitrogen-ka ee warshadaha ballaaran.

Labaad: Cadaadiska Swing Adsorption (PSA) Habka Soo saarista Nitrojiinka

Adsorption Adsorption (PSA) tignoolajiyada kala soocida gaaska waa laan muhiim ah oo ka mid ah tignoolajiyada kala soocida gaaska aan-cryogenic. Waa natiijada dadaalka fog ee dadku ay ku doonayaan in ay helaan hab ka sahlan oo kala soocida hawada marka loo eego habka cryogenic.

Sannadihii 1970-aadkii, Shirkadda Macdanta Galbeedka Jarmalka ee Essen waxay si guul leh u soo saartay shaandhooyin kaarboon molecular, taasoo u gogol xaaraysay warshadaynta soosaarka nitrogen ee hawada PSA kala soocidda. 30kii sano ee la soo dhaafay, tignoolajiyadani si degdeg ah ayay u horumartay oo qaan gaadhay. Waxay noqotay tartame xooggan oo ah kala-soocidda hawada cryogenic ee berrinka wax soo saarka nitrogen-yar iyo dhexdhexaad ah.

Wax-soo-saarka nitrogen ee lulidda cadaadiska wuxuu u adeegsadaa hawada sidii walxo ceeriin ah iyo shaandho molecular kaarboon ahaan sida adsorbent. Waxay isticmaashaa sifooyinka shaandhada molecular ee kaarboonka ee xulashada oksijiinta iyo nitrogen ee hawada, waxayna isticmaashaa mabda'a adsorption lulida cadaadiska (adsorption cadaadis, desorption dhimista cadaadiska iyo dib u soo kabashada shaandhada molecular) si loo kala saaro oksijiinta iyo nitrogen heerkulka qolka si loo soo saaro nitrogen.

Marka la barbardhigo soosaarka nitrogen ee kala-soocida hawada cryogenic, wax soo saarka nitrogen-ka ee cadaadiska lulida wuxuu leeyahay faa'iidooyin la taaban karo: kala-soocidda xayeysiinta waxaa lagu fuliyaa heerkulka qolka, geeddi-socodku waa mid fudud, qalabku waa mid cufan, raadku waa yar yahay, way fududahay in la bilaabo oo la joojiyo, waa si dhakhso ah ayuu u bilaabmaa, wax soo saarka gaasku waa mid degdeg ah (guud ahaan qiyaastii 30 daqiiqo), isticmaalka tamarta waa yar yahay, kharashka hawlgalka waa yar yahay, heerka automation-ka ayaa sarreeya, hawlgalka iyo dayactirka ayaa ku habboon, rakibidda skid waa mid ku habboon, ma jirto aasaas gaar ah. waxaa loo baahan yahay, Nadiifinta Nitrojiin wax soo saarka waxaa lagu hagaajin karaa ilaa xad gaar ah, iyo wax soo saarka nitrogen waa ≤3000Nm3 / h. Sidaa darteed, wax-soo-saarka nitrogen ee lulidda cadaadiska ayaa si gaar ah ugu habboon hawlgalka joogtada ah.

Si kastaba ha ahaatee, ilaa hadda, dhiggooda gudaha iyo kuwa shisheeye waxay kaliya soo saari karaan nitrogen oo nadiif ah 99.9% (ie, O2≤0.1%) iyagoo isticmaalaya tignoolajiyada soosaarka nitrogen ee PSA. Shirkadaha qaarkood waxay soo saari karaan 99.99% nitrogen saafi ah (O2≤0.01%). Nadiifinta sare waa suurtogal marka loo eego aragtida tignoolajiyada soosaarka nitrogen ee PSA, laakiin qiimaha wax soo saarku aad buu u sarreeyaa isticmaalayaashuna uma badna inay aqbalaan. Sidaa darteed, isticmaalka tignoolajiyada wax-soo-saarka nitrogen ee PSA si loo soo saaro nitrogen-nadiifinta sare waa in sidoo kale lagu daro aaladda nadiifinta marxaladda kadib.

Habka nadiifinta Nitrogen (miisaanka warshadaha)

(1) Habka deoxygenation Hydrogenation.

Marka la eego ficilka kicinta, ogsijiinta hadhaaga ah ee nitrogen-ka waxay la falgashaa hydrogen-ka lagu daray si ay u soo saarto biyaha, qaabka falcelinta waa: 2H2 + O2 = 2H2O. Kadibna, biyaha ayaa laga saarayaa kor u qaadista nitrogen-cadaadiska-sare, iyo nitrogen-nadiifinta sare leh ee qaybaha ugu muhiimsan ee soo socda ayaa lagu helaa qallajinta ka dib: N2≥99.999%, O2≤5 × 10-6, H2≤1500× 10-6, H2O≤10.7×10-6. Qiimaha wax soo saarka nitrogen waa qiyaastii 0.5 yuan/m3.

(2) Hababka hydrogenation-ka iyo deoxygenation.

Habkani wuxuu u qaybsan yahay saddex marxaladood: marxaladda koowaad waa hydrogenation iyo deoxygenation, heerka labaad waa fuuqbaxa, iyo marxaladda saddexaad waa nadiifinta biyaha. nitrogen-nadiifinta sare leh oo leh halabuurka soo socda ayaa la helaa: N2 ≥ 99.999%, O2 ≤ 5 × 10-6, H2 ≤ 5 × 10-6, H2O ≤ 10.7 × 10-6. Qiimaha wax soo saarka nitrogen waa qiyaastii 0.6 yuan/m3.

(3) Habka kaarboon deoxygenation.

Marka la eego ficilka kicinta kaarboon-ku-taageersan (heerkulka cayiman), oksijiinta hadhaaga ah ee ku jirta nitrogen-ka caadiga ah waxay la falgashaa kaarboonka uu bixiyo kicinta lafteedu si ay u dhaliso CO2. Habka falcelinta: C + O2 = CO2. Ka dib marxaladda soo socota ee ka saarista CO2 iyo H2O, nitrogen-nadiifinta sare leh ee soo socda ayaa la helay: N2 ≥ 99.999%, O2 ≤ 5 × 10-6, CO2 ≤ 5 × 10-6, H2O ≤ 10.7 × 10-6. Qiimaha wax soo saarka nitrogen waa qiyaastii 0.6 yuan/m3.

Saddexaad: Kala soocida xuubabka iyo hawada kala soocida nitrogen soosaarka

Kala soocida membrane iyo soosaarka nitrogen ee hawada kala soocida sidoo kale waa laan cusub oo tignoolajiyada wax soo saarka nitrogen-ka ee non-cryogenic. Waa hab cusub oo soosaarka nitrogen oo si degdeg ah u horumaray dibadda 1980-meeyadii. Waxa laga dallacsiiyay oo laga dalbaday Shiinaha sannadihii u dambeeyay.

Soosaarka nitrogen ee kala soocida xuubka waxay u isticmaashaa hawo sida walxo ceeriin ah. Cadaadis gaar ah, waxay isticmaashaa heerarka kala duwan ee qulqulka oksijiinta iyo nitrogen ee xuubka fiber-ka bannaan si ay u kala saarto ogsijiinta iyo nitrogen si ay u soo saarto nitrogen. Marka la barbar dhigo labada hababka wax soo saarka nitrogen ee kor ku xusan, waxa ay leedahay sifooyinka qaab-dhismeedka qalabka fudud, mugga yar, ma beddelka valve, hawl fudud iyo dayactirka, wax soo saarka gaasta degdeg ah (3 daqiiqo gudahood), iyo ballaadhin dheeraad ah awoodda.

Si kastaba ha ahaatee, xuubka xuubka xuubka xuubka xuubka ayaa leh shuruudo adag oo ku saabsan nadaafadda hawada ciriiriga ah. Xuubabka ayaa u nugul gabowga iyo fashilka, wayna adagtahay in la hagaajiyo. Xuub cusub ayaa loo baahan yahay in la beddelo.

Soosaarka nitrogen ee kala-soocida Membrane wuxuu aad ugu habboon yahay isticmaaleyaasha yaryar iyo kuwa dhexdhexaadka ah ee leh shuruudaha nadiifinta nitrogen ee ≤98%, waxayna leedahay saamiga ugu wanaagsan ee shaqada-qiimaha waqtigan; marka nadiifinta nitrogen loo baahan yahay inay ka sarreyso 98%, waxay ku saabsan tahay 30% ka sarreeya qalabka wax soo saarka nitrogen ee isku midka ah. Sidaa darteed, marka nitrogen-nadiifinta sare la soo saaro iyada oo la isku darayo soosaarka nitrogen ee kala sooca xuubka iyo aaladaha nadiifinta nitrogen, nadiifinta nitrogen guud ahaan guud ahaan waa 98%, taas oo kordhin doonta kharashka wax soo saarka iyo kharashka hawlgalka ee qalabka sifaynta.