Kubvisa Sarufa muGasi rechisikigo: Kuchenesa Mafuta eBridge

Gasi rechisikigo, iro "rinopa simba remabhuroko" rinokosha, rinowanzova nehydrogen sulfide (H₂S) uye organic sulfur compounds (mercaptans, COS), izvo zvine chepfu, zvinoparadza, uye zvinogadzira SOx inokuvadza kana yatsva. Saka, kubvisa sulfurization (kunakisa) kwakakosha.

Nheyo:Nheyo huru inosanganisira kupatsanura zvinhu zvine sarufa kubva murwizi rwegasi rine methane yakawanda uchishandisa makemikari kana physical interactions. Izvi zvinonanga mazinga eH₂S kusvika pamatanho epaipi (kazhinji ≤ 4 ppmv) uye total sarufa kuti isvike padanho rezvakatipoteredza/rekugadzirisa.

Nzira Dzinokosha:

1. Kunyudzwa kweAmine (Zvinyungudutsa zveMakemikari):Nzira inonyanya kushandiswa. Alkanolamines (semuenzaniso, MDEA) inoita zvinodzokororwa neH₂S neCO₂ muchinhu chinonyungudutsa. Amine yakapfuma inovandudzwa muchinhu chinobvisa mafuta (ichishandisa kupisa), ichiburitsa gasi rine acid yakawanda kuti riwedzere kugadzirwa (seClaus unit) uye ichidzokorodza lean amine.
2. Kunyudzwa kweFizikiki kweSolvent (semuenzaniso, Selexol, Rectisol):Shandisa zvinonyungudutsa (senge glycols) zvinonyungudutsa makemikari e sarufa mumuviri kana paine kumanikidzwa kwakanyanya. Kuvandudzwa kunoitika zvakanyanya nekuderedza kumanikidzwa (kugadziriswazve kwechiedza), zvichipa simba rakanakira kudya kwe sarufa ine kumanikidzwa kwakanyanya.
3. Kunyudzwa Kwakasimba (semuenzaniso, Masefu eMorekuru, Zinc Oxide):Inoshandiswa pakupukuta zvakadzika kusvika padanho rakaderera reppm/ppb kana kubvisa bulk mune zvimwe zviitiko. MaAdsorbents anosunga zvinhu zvesarufa pamusoro pazvo; kugadzikiswazve kunoda kudziyiswa kana kutsiviwa.
4. Maitiro aClaus:Hazvina kutapira zvakananga, asi zvakakosha pakurapa gasi rine acidyakagadzirwaneamine units. Inoshandura H₂S kuita elemental salfa kuburikidza nekupisa zvishoma uye catalytic reaction (2H₂S + O₂ → S₂ + 2H₂O).

Zvakanakira:

• Kuchengetedzeka:Inobvisa njodzi dzeH₂S.
• Kudzivirirwa Kwezvinhu:Inodzivirira ngura mumapaipi, mavharuvhu, uye michina yekugadzirisa.
• Kutevedzera Mitemo Yezvakatipoteredza:Inobvumira kupisa kwakachena, ichideredza kuburitswa kweSOx uye mvura ine acid.
• Hunhu hweChigadzirwa:Inosangana nezvinodiwa nemapaipi neLNG; inodzivirira chepfu ye catalyst kune vanoshandisa mvura iri pasi pemvura.
• Kudzorerwa kweSarufa:Inogadzira sarufa inokosha.

Tarisiro Yeramangwana:Zvichikonzerwa nemitemo yakaoma yezvakatipoteredza uye kukura kweLNG, kudiwa kwekubvisa sarufa zvinobudirira kuri kuwedzera. Zvinangwa zveramangwana zvinosanganisira:

• Zvinonyungudutsa Zvepamusoro:Zvinonyungudutsa zvehybrid zvinosanganisa makemikari nehunhu hwemuviri kuti zvive nyore kusarudza uye kuderedza kushandiswa kwesimba.
• Tekinoroji yeMembrane:Inovimbisa kupatsanurwa kwemagetsi nenzira inoshanda, kunyanya pakubviswa kwemagetsi akawanda kana kuti pakuyerera kwemvura chaiyo.
• Kuwedzerwa kweMaitiro:Kugadzirisa kubatanidzwa pakati pezvikamu zvekunyudza, kugadzirisa, uye kudzoreredza sarufa.
• Nzira dzeBiotekinoroji:Kuongorora kubviswa kwesulfurization yezvigadzirwa zve niche.

Kubvisa sarufa negasi rechisikigo kuchiri tekinoroji inokosha, ichivimbisa kushandiswa kwakachengeteka, kwakanaka kwezvakatipoteredza, uye nemazvo kwesimba iri rinokosha, nekuvandudzwa kuri kuramba kuchiumba ramangwana rayo.

Bata nesu:

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