Kupanga haidrojeni: Kusintha kwa Gasi Wachilengedwe

Kusintha kwa gasi ndi njira yotsogola komanso yokhwima yomwe imakhazikika pamapaipi achilengedwe omwe alipo. Iyi ndi njira yofunikira yaukadaulo wanthawi yayitalikupanga haidrojeni.

Kodi Zimagwira Ntchito Motani?

Kusintha kwa gasi, yomwe imadziwikanso kuti steam methane reforming (SMR), ndi njira yomwe imagwiritsidwa ntchito kwambiri popanga haidrojeni. Zimakhudza momwe gasi wachilengedwe (makamaka methane) amachitira ndi nthunzi pansi pa kuthamanga kwambiri komanso pamaso pa chothandizira, chomwe chimakhala ndi faifi tambala, kuti apange chisakanizo cha haidrojeni, carbon monoxide, ndi carbon dioxide. Ndondomekoyi ili ndi njira ziwiri zazikulu:

Kusintha kwa Steam-Methane(SMR): Zomwe zimachitika koyamba pomwe methane imachita ndi nthunzi kupanga haidrojeni ndi carbon monoxide. Iyi ndi njira ya endothermic, kutanthauza kuti imafunika kulowetsamo kutentha.

CH4 + H2O (+ kutentha) → CO + 3H2

Water-Gas Shift Reaction (WGS): Mpweya wa carbon monoxide wopangidwa mu SMR umakhudzidwa ndi nthunzi yambiri kupanga mpweya woipa ndi haidrojeni wowonjezera. Izi ndizowopsa, kutulutsa kutentha.

CO + H2O → CO2 + H2 (+ kutentha pang'ono)

Izi zikachitika, kusakaniza kwa gasi, komwe kumadziwika kuti synthesis gas kapena syngas, kumakonzedwa kuchotsa mpweya woipa ndi zonyansa zina. Kuyeretsedwa kwa hydrogen kumatheka kudzerakuthamanga kuthamanga adsorption(PSA), yomwe imalekanitsa haidrojeni ku mipweya ina kutengera kusiyana kwa khalidwe la adsorption pansi pa kusintha kwamphamvu.

Chifukwa chiyani CphokosoNjira iyi?

Kugwiritsa Ntchito Ndalama: Gasi wachilengedwe ndi wochuluka komanso ndi wotchipa, zomwe zimapangitsa SMR kukhala imodzi mwa njira zotsika mtengo kwambiri zopangira haidrojeni.

Infrastructure: Mapaipi a gasi omwe alipo alipo akupereka chakudya chokwanira, kuchepetsa kufunika kwa zomangamanga zatsopano.

Kukhwima:SMR lusoyakhazikitsidwa bwino ndipo yakhala ikugwiritsidwa ntchito kwa zaka zambiri popanga haidrojeni ndi ma syngas pazinthu zosiyanasiyana zamafakitale.

Scalability: Zomera za SMR zitha kukulitsidwa kuti zipange haidrojeni mumiyeso yoyenera kugwiritsidwa ntchito pang'ono komanso zazikulu.