Kubudirira muTekinoroji yeMolecular Sieve Kunowedzera Kubvisa Sulphur uye Kushanda Nesimba muKugadzira Gasi
Indasitiri yekugadzira gasi rechisikigo iri kuona kufambira mberi kukuru mukushandiswa kwema molecular sieve desulphurization uye hydration tekinoroji, zvichikonzerwa nekuwedzera kwekuda kwemafuta akachena zvakanyanya uye kushanda zvakanaka. Zvitsva zvitsva zviri kutarisa pakuvandudza kugadzikana kwe catalyst uye kugona kwekugadzirisazve mumidziyo yekubvisa hydrocarbon mugasi rechisikigo, kunyanya pakugadzira LNG ne NGL kubva mukushandiswa kwegasi rechisikigo.
Chiri pamberi apa ndechekugadzirwa kwemasefa e-mesoporous molecular sieves ane cobalt-doped akabatanidzwa neN,N-dihydroxypyromellitimide (Co-SBA-15-NDHPI), izvo zvinoratidza kugadzikana kwakasimba panguva yekubvisa oxidative oxidative desulfurization. Iyi organic-inorganic composite inosimbisa synergistic effect pakati pezvinhu zvinoshanda uye zvinotsigira zvine maburi, zvichivandudza zvakanyanya kushanda kwekushandura sulfide-to-sulfone uku ichiramba kudzimwa.
Yakabatanidzwa Zvikamu zveKushaya Mvura Mumvura-Kubvisa Sulphur Kuwana Simba
Magadzirirwo emazuva ano ekushandisa mvura kubva mumvura anosanganisira kufambira mberi uku nehurongwa hwekushanda hwakagadziridzwa:
Magadzirirwo emodular: Zvishandiso zvinosungirirwa paskid zvine otomatiki switching pakati pekunyungudutsa, kugadzirisa, uye kutonhora (masisitimu maviri kana matatu-shongwe) zvinogonesa kushanda kwemvura inonaya -70°C kwakakosha kune LNG/maitiro eNGL
Kushanda zvakanaka pakudzoreredza: Mahita anopfurwa zvakananga kana emagetsi ikozvino anodzoreredza ma "molecular seeves" pa 230-300°C achishandisa "dry gas counterflow", zvichidzoreredza kugona kwekusveta mvura ukuwo zvichideredza kushandiswa kwesimba kusvika ku 30%.
Kudzora kusvibiswa kwakawanda: Masefa emasero echizvarwa chinotevera anotarisa H₂S, SO₂, uye utsi hwemvura panguva imwe chete kuburikidza nemagadzirirwo emaburi akagadziriswa—microporous (
Kuitwa Kwemunda uye Kushanda
Munzvimbo yeShandong LNG muChina, mayuniti emvura akavandudzwa emuseve wemolecular sieve akaderedza kuwanda kwemvura inobuda mumuviri ne40% ukuwo achichengetedza zvinodiwa zvegasi remuchigadzirwa pasi pe0.1 ppm sulfur compounds uye -70°C dew point. Saizvozvowo, Permian Basin Kupora kweNGL Zvivako zvinoshuma kuti hupenyu hwesefa hwakareba ne15% mushure mekushandura kushandisa vanadium-modified ZSM-5 molecular sieves, izvo zvinowedzera kushanda kwe thiophene desulfurization ne11% zvichienzaniswa nezvinhu zvemazuva ose.
"Kubatanidzwa kwezvinhu zvinobvisa sarufa zvine simba rakawanda mukati menzvimbo dzemvura inoyerera kunomiririra shanduko huru. Zvirimwa hazvichadi mayuniti akasiyana ekubvisa sarufa nemvura, zvichideredza CAPEX ne25% ukuwo zvichiwana gasi repaipi nedanho rimwe chete." — Jiangsu Rudy Petrochemical Engineering Leader
Nekunge kutengeserana kwepasi rose kweLNG kuchitarisirwa kukura ne70% panosvika gore ra2040, hunyanzvi hwekusefa kwemamorekuru hwagadzirira kutsigira zvinangwa zviviri zveindasitiri zvekukwanisa kukura uye kuderedza utsi. Tsvagiridzo iri kuenderera mberi inotarisa masefa eMOF ane kugona kusiyanisa mamorekuru kuti panguva imwe chete abvise mercury, mvura, uye sarufa mumidziyo yekubvisa mvura kubva mugasi rechisikigo.
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