E-fuel, yog dab tsi?

Nyob rau hauv luv luv, e-roj - nyeem: ib puag ncig tus phooj ywg - txawv ntawm nws cov tsoos counterparts feem ntau nyob rau hauv txoj kev nws yog tsim. Cov tom kawg suav nrog cov txheej txheem hluavtaws siv dej thiab carbon dioxide, nrog rau kev siv hluav taws xob ntsuab thiab hnub ci zog. Raws li nrog cov fossil fuels paub zoo, ntawm cov roj hluavtaws peb kuj tuaj yeem pom e-kua roj, e-diesel thiab e-gas.

Neutral, qhov ntawd txhais li cas?

Feem ntau, ib puag ncig tus phooj ywg hluavtaws hluavtaws hu ua nruab nrab. Nws yog dab tsi? Lub sij hawm yog raws li lawv txoj kev sib raug zoo rau carbon dioxide. Qhov nruab nrab hais saum toj no txhais tau hais tias carbon dioxide yog ob qho tib si uas yuav tsum tau tsim cov roj e-roj thiab cov khoom los ntawm nws cov combustion. Zoo heev rau txoj kev xav. Txawm li cas los xij, hauv kev xyaum, nws yog cov pa roj carbon dioxide uas nkag mus rau hauv huab cua nrog rau cov pa pa tawm. Cov neeg nyiam nyob ib puag ncig ntawm cov roj tshiab tau sib cav tias qhov kawg yog huv dua li cov pa roj carbon monoxide los ntawm cov cav khiav ntawm cov roj fossil.

Tsis muaj sulfur thiab benzene

Yog li, cia peb pib nrog cov roj siv feem ntau - roj av. Nws cov hluavtaws analogue yog e-kua roj. Cov roj Crude tsis tas yuav tsim cov roj no ib puag ncig, vim nws tau hloov los ntawm isooctane hauv cov kua dej. Cov tom kawg yog tsim los ntawm cov organic tshuaj compound los ntawm ib pawg ntawm hydrocarbons hu ua isobutylene thiab hydrogen. E-roj roj yog tus cwj pwm los ntawm tus lej octane siab heev ROZ (Kev Tshawb Fawb Oktan Zahl - lub npe hu ua kev tshawb fawb octane tooj), ncav cuag 100. Rau kev sib piv, octane tus naj npawb ntawm cov roj av tau los ntawm cov roj crude yog 91-98. Qhov kom zoo dua ntawm e-kua roj kuj yog nws purity - nws tsis muaj sulfur thiab benzene. Yog li, cov txheej txheem combustion yog huv heev, thiab tus naj npawb octane siab ua rau muaj kev nce ntxiv hauv qhov sib piv, uas ua rau muaj kev nce qib ntawm cov roj av cav.

Blue Crude - yuav luag hluav taws xob diesel

Tsis zoo li cov roj hluav taws xob ib txwm siv, hluav taws xob diesel kuj tseem siv los ua cov roj hluavtaws. Interestingly, los tsim nws koj xav tau cov khoom xyaw uas tsis muaj dab tsi ua rau kev ua hauj lwm hauv diesel units, xws li ... dej, carbon dioxide thiab hluav taws xob. Yog li cas e-diesel ua? Thawj ntawm cov khoom xyaw saum toj no, dej, yog rhuab mus rau qhov kub ntawm txog 800 ° C thaum lub sij hawm electrolysis. Tig nws mus rau hauv chav, nws decomposes rau hauv hydrogen thiab oxygen. Cov hydrogen nyob rau hauv cov synthesis reactors ces reacts nrog carbon dioxide nyob rau hauv cov txheej txheem tshuaj tom ntej. Ob leeg ua haujlwm ntawm qhov kub ntawm kwv yees li 220 ° C thiab lub siab ntawm 25 bar. Raws li ib feem ntawm cov txheej txheem synthesis, cov kua hluav taws xob hu ua Blue Crude tau txais, cov muaj pes tsawg leeg yog raws li hydrocarbon tebchaw. Tom qab nws tiav lawm, nws yuav muaj peev xwm tham txog hluavtaws e-diesel roj. Cov roj no muaj tus lej cetane siab thiab tsis muaj cov tshuaj sulfur uas muaj teeb meem.

Nrog hluavtaws methane

Thiab thaum kawg, ib yam dab tsi rau lovers ntawm tsheb roj, tab sis tsis yog nyob rau hauv lub nrov tshaj plaws version ntawm LPG, uas yog ib tug sib tov ntawm propane thiab butane, tab sis nyob rau hauv natural gas CNG. Hom thib peb ntawm ib puag ncig roj, e-gas, tsis muaj dab tsi zoo sib xws nrog dab tsi tsav tsheb cav tom qab kev hloov kho. Txhawm rau tsim cov roj no koj xav tau dej thiab hluav taws xob. Thaum cov txheej txheem ntawm electrolysis, dej tau faib ua oxygen thiab hydrogen. Tsuas yog tom kawg yog xav tau rau lub hom phiaj ntxiv. Hydrogen reacts nrog carbon dioxide. Cov txheej txheem no, hu ua methanation, tsim cov qauv tshuaj ntawm cov pa hluav taws xob zoo ib yam li cov pa roj ntsha. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias nws cov khoom rho tawm yog cov khoom tsis muaj teeb meem xws li oxygen thiab dej.