Natural Gas Reforming yog txheej txheem kev tsim khoom qib siab thiab paub tab uas tsim los ntawm cov khoom siv hluav taws xob xa hluav taws xob uas twb muaj lawm. Qhov no yog ib txoj hauv kev siv technology tseem ceeb rau lub sijhawm zehydrogen ntau lawm.
Nws Ua Haujlwm Li Cas?
Natural gas hloov kho, tseem hu ua steam methane reforming (SMR), yog ib txoj kev siv dav rau hydrogen ntau lawm. Nws koom nrog cov tshuaj tiv thaiv ntawm cov pa roj carbon monoxide (feem ntau methane) nrog chav nyob rau hauv siab thiab nyob rau hauv lub xub ntiag ntawm ib tug catalyst, feem ntau nickel-raws li, los tsim ib tug sib tov ntawm hydrogen, carbon monoxide, thiab carbon dioxide. Cov txheej txheem muaj ob lub ntsiab lus tseem ceeb:
Chav-Methane Reforming(SMR): Thawj cov tshuaj tiv thaiv qhov twg methane reacts nrog chav los tsim hydrogen thiab carbon monoxide. Qhov no yog ib qho txheej txheem endothermic, txhais tau tias nws yuav tsum muaj cua sov nkag.
CH4 + H2O (+ kub) → CO + 3H2
Water-Gas Shift Reaction (WGS): Cov pa roj carbon monoxide uas tsim nyob rau hauv SMR reacts nrog ntau chav los tsim carbon dioxide thiab hydrogen ntxiv. Qhov no yog exothermic cov tshuaj tiv thaiv, tso cua sov.
CO + H2O → CO2 + H2 (+ me me ntawm cov cua sov)
Tom qab cov tshuaj tiv thaiv no, cov roj sib xyaw ua ke, hu ua synthesis gas lossis syngas, yog ua tiav kom tshem tawm cov pa roj carbon dioxide thiab lwm yam impurities. Kev ua kom huv ntawm hydrogen feem ntau ua tiav los ntawmsiab viav vias adsorption(PSA), uas cais hydrogen los ntawm lwm cov pa roj raws li qhov sib txawv ntawm adsorption tus cwj pwm nyob rau hauv kev hloov siab.
Vim li cas ChoosQhov txheej txheem no?
Nqi-Effectiveness: Natural gas muaj ntau thiab pheej yig, ua SMR yog ib qho ntawm cov nqi zoo tshaj plaws rau kev tsim cov hydrogen.
Infrastructure: Lub network gas pipeline uas twb muaj lawm muab cov khoom npaj npaj txhij, txo cov kev xav tau tshiab infrastructure.
Kev loj hlob:SMR technologyyog tsim tau zoo thiab tau siv rau ntau xyoo hauv kev tsim cov hydrogen thiab syngas rau ntau yam kev lag luam.
Scalability: SMR nroj tsuag tuaj yeem scaled los tsim hydrogen nyob rau hauv kom muaj nuj nqis haum rau ob qho tib si me me thiab loj-scale daim ntaub ntawv.
Post lub sij hawm: Sep-13-2024
