Kev Tshawb Fawb Tshiab hauv Molecular Sieve Technology Txhim Kho Desulfurization thiab Dehydration Efficiency hauv Gas Processing

Kev lag luam ua roj av tab tom pom kev nce qib tseem ceeb hauv cov thev naus laus zis molecular sieve desulphurization thiab dehydration, tsav los ntawm kev thov kom muaj cov roj huv si thiab kev ua haujlwm zoo. Cov kev tsim kho tshiab tsis ntev los no tsom mus rau kev txhim kho kev ruaj khov catalyst thiab kev rov ua dua tshiab hauv cov khoom siv dehydration roj av, tshwj xeeb tshaj yog rau LNG cog thiab NGL rov qab los ntawm kev siv roj av.

Nyob rau pem hauv ntej yog kev tsim cov cobalt-doped mesoporous molecular sieves grafted nrog N,N-dihydroxypyromellitimide (Co-SBA-15-NDHPI), uas qhia tau tias muaj kev ruaj khov thaum lub sijhawm catalytic oxidative desulfurization. Cov organic-inorganic composite no ua kom muaj zog ntawm cov khoom siv nquag thiab cov kev txhawb nqa porous, txhim kho qhov ua tau zoo ntawm kev hloov pauv sulfide-rau-sulfone thaum tiv thaiv kev ua haujlwm tsis zoo.

Kev sib xyaw ua ke Cov Chav Ua Kom Qhuav-Desulfurization Tau Txais Kev Sib Tw
Cov qauv tsim ntawm lub tshuab ua kom dej qhuav niaj hnub no suav nrog cov kev nce qib no nrog cov qauv ua haujlwm zoo tshaj plaws:

Kev teeb tsa modular: Cov chav nyob skid-mounted nrog kev hloov pauv tsis siv neeg ntawm kev nqus, rov ua dua tshiab, thiab kev ua kom txias (ob lossis peb lub pej thuam) ua rau muaj kev ua haujlwm dewpoint dej -70 ° C tas mus li rau LNG/NGL cov txheej txheem

Kev ua haujlwm rov ua dua tshiab: Cov cua sov uas siv hluav taws xob lossis hluav taws xob tam sim no rov ua dua cov molecular sieves ntawm 230-300 ° C siv cov roj qhuav rov qab, rov qab muaj peev xwm nqus tau thaum txo kev siv hluav taws xob txog li 30%.

Kev tswj cov pa phem ntau yam: Cov tshuab lim dej molecular tiam tom ntej tib lub sijhawm tsom mus rau H₂S, SO₂, thiab cov pa dej los ntawm cov qauv pore tshwj xeeb—microporous (

Kev Siv Hauv Tebchaws thiab Kev Ua Tau Zoo
Hauv Tuam Tshoj lub chaw nres nkoj Shandong LNG, cov chav ua kom qhuav molecular sieve uas tau hloov kho dua tshiab tau txo qhov zaus rov ua dua tshiab los ntawm 40% thaum tswj cov lus qhia roj ntawm cov khoom lag luam qis dua 0.1 ppm sulfur compounds thiab -70 ° C dew point. Ib yam li ntawd, Permian Basin Kev rov qab los ntawm NGL Cov chaw ua haujlwm tshaj tawm tias lub sieve siv tau ntev dua 15% tom qab hloov mus siv vanadium-modified ZSM-5 molecular sieves, uas ua rau thiophene desulfurization ua haujlwm tau zoo dua 11% piv rau cov ntaub ntawv ib txwm muaj.

"Kev koom ua ke ntawm cov khoom siv desulfurization ruaj khov hauv cov dehydration towers sawv cev rau kev hloov pauv paradigm. Cov nroj tsuag tsis xav tau cov chav sib cais rau kev tshem tawm sulfur thiab dej, txiav CAPEX los ntawm 25% thaum ua tiav cov roj pipeline-spec hauv ib kauj ruam." - Jiangsu Rudy Petrochemical Engineering Lead

Nrog rau kev lag luam LNG thoob ntiaj teb uas kwv yees tias yuav loj hlob 70% los ntawm xyoo 2040, kev tsim kho tshiab ntawm molecular sieve tau npaj los txhawb nqa kev lag luam ob lub hom phiaj ntawm kev nthuav dav thiab kev txo cov pa phem. Kev tshawb fawb txuas ntxiv tsom mus rau MOF-based sieves nrog cov peev xwm sib cais molecular kom tshem tawm cov mercury, dej, thiab sulfur tib lub sijhawm hauv cov khoom siv roj av tom ntej.

Tiv tauj:

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