Kev Tshem Tawm Cov Pa Roj Ntuj: Kev Ntxuav Cov Roj Choj

Cov roj av, uas yog ib qho roj tseem ceeb, feem ntau muaj cov hydrogen sulfide (H₂S) thiab cov organic sulfur compounds (mercaptans, COS), uas yog cov tshuaj lom, corrosive, thiab tsim cov SOx uas ua rau muaj kev phom sij thaum hlawv. Yog li ntawd, desulfurization (qab zib) yog qhov tseem ceeb.

Lub Ntsiab Cai:Lub hauv paus ntsiab lus tseem ceeb yog kev cais cov tshuaj sulfur los ntawm cov pa roj methane uas muaj ntau los ntawm kev siv tshuaj lom neeg lossis kev sib cuam tshuam ntawm lub cev. Qhov no tsom mus rau qib H₂S mus rau cov lus qhia ntawm cov kav dej (feem ntau ≤ 4 ppmv) thiab tag nrho cov sulfur kom ua tau raws li cov qauv ib puag ncig/kev ua haujlwm.

Cov Txheej Txheem Tseem Ceeb:

1. Kev Nqus Amine (Cov Tshuaj Lom Zem):Txoj kev tseem ceeb. Alkanolamines (piv txwv li, MDEA) ua rau muaj kev cuam tshuam rov qab nrog H₂S thiab CO₂ hauv lub tshuab nqus. Cov amine nplua nuj raug tsim dua tshiab hauv lub stripper (siv cua sov), tso cov pa roj concentrated acid rau kev ua ntxiv (zoo li Claus unit) thiab rov ua dua cov lean amine.
2. Kev Nqus Tau Cov Tshuaj Lom (piv txwv li, Selexol, Rectisol):Siv cov tshuaj yaj (xws li glycols) uas yaj cov tshuaj sulfur hauv qab lub zog siab. Kev rov ua dua tshiab feem ntau tshwm sim los ntawm kev txo lub zog (flash regeneration), muab cov txiaj ntsig zoo rau lub zog siab, cov khoom noj sulfur siab.
3. Kev Nqus Khoom Kho (piv txwv li, Cov Sieves Molecular, Zinc Oxide):Siv rau kev txhuam kom tob txog qib ppm/ppb qis heev lossis tshem tawm ntau hauv qee kis. Cov adsorbents ntes cov tshuaj sulfur rau ntawm lawv qhov chaw; kev rov ua dua tshiab yuav tsum tau cua sov lossis hloov pauv.
4. Txheej Txheem Claus:Tsis yog qab zib ncaj qha, tab sis tseem ceeb rau kev kho cov roj acidtsim tawmlos ntawm cov chav amine. Nws hloov H₂S mus rau hauv cov sulfur elemental los ntawm kev sib xyaw ua ke thiab catalytic reaction (2H₂S + O₂ → S₂ + 2H₂O).

Cov txiaj ntsig:

• Kev Nyab Xeeb:Tshem tawm cov kev phom sij ntawm H₂S.
• Kev Tiv Thaiv Khoom Muaj Nqis:Tiv thaiv kev xeb hauv cov kav dej, cov li qub, thiab cov khoom siv ua haujlwm.
• Kev Ua Raws Cai Ib puag ncig:Ua rau muaj kev sib xyaw ua ke huv si, txo cov pa phem SOx thiab nag los ntawm kua qaub.
• Khoom Zoo:Ua tau raws li cov lus qhia ntawm cov kav dej thiab LNG; tiv thaiv kev lom catalyst rau cov neeg siv hauv qab.
• Kev Rov Qab Los Ntawm Sulfur:Tsim cov tshuaj sulfur muaj nqis.

Kev Cia Siab Yav Tom Ntej:Vim muaj kev cai lij choj ib puag ncig nruj dua thiab kev loj hlob ntawm LNG, qhov kev thov rau kev desulfurization zoo nce ntxiv. Cov kev tsom mus rau yav tom ntej suav nrog:

• Cov Tshuaj Solvents Siab Tshaj Plaws:Cov kuab tshuaj sib xyaw ua ke uas muaj cov khoom siv tshuaj lom neeg thiab lub cev rau kev xaiv ntau dua thiab kev siv hluav taws xob tsawg dua.
• Kev Siv Tshuab Membrane:Muaj kev cia siab rau kev sib cais modular, txuag hluav taws xob, tshwj xeeb tshaj yog rau kev tshem tawm ntau lossis cov kwj deg tshwj xeeb.
• Kev Ua Kom Muaj Zog Dua:Kev txhim kho kev sib koom ua ke ntawm kev nqus, kev rov ua dua tshiab, thiab cov chav rov qab los ntawm cov leej faj.
• Cov Kev Siv Biotechnological:Tshawb nrhiav kev desulfurization ntawm cov khoom siv hauv lub cev rau cov ntawv thov niche.

Kev tshem tawm cov roj av tseem yog ib qho thev naus laus zis tseem ceeb, ua kom muaj kev nyab xeeb, ib puag ncig zoo, thiab siv tau zoo ntawm cov peev txheej tseem ceeb no, nrog rau kev tsim kho tshiab tas mus li los tsim nws lub neej yav tom ntej.

Tiv tauj:

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