Kev tshem tawm cov pa roj carbon monoxide thiab siv tau txais traction raws li lub zog hloov pauv lag luam

Raws li nws tau dhau los ua qhov pom tseeb tias a) kev hloov pauv ntawm lub zog tsis tau nce nrawm nrawm kom ua tiav cov sijhawm teem tseg raws li lub hom phiaj decarbonization thoob ntiaj teb, thiab b) uas, raws li National Academies of Sciences lees paub, cov hom phiaj no tsis tuaj yeem ua tiav los ntawm carbon Kev txo qis los ntawm kev rov ua dua tshiab ib leeg, kev saib xyuas ntxiv yog them rau cov thev naus laus zis ntsig txog carbon capture, cia thiab siv (CCSU).

Txog rau qhov kawg, ob tus tswvcuab ntawm Pawg Neeg Sawv Cev, Ann Kuster (D-NH) thiab Anthony Gonzalez (R-OH) tsis ntev los no tau qhia txog qhov lawv.'re npe REMOVE Act, ib daim nqi uas yuav tsim "tag nrho tsoomfwv txoj hauv kev rau kev sim, qauv, thiab tsim cov pa roj carbon dioxide tshem tawm (CDR) thev naus laus zis." Tsab cai lij choj yuav hais ncaj qha rau tsoomfwv cov koomhaum kom suav nrog kev txhim kho CDR ua ib feem ntawm lawv qhov kev thov nyiaj txiag txhua xyoo.

Txog rau qhov kawg ntawm kev txhawb nqa CDR / CCSU cov kev daws teeb meem, muaj ntau pawg ntawm 29 tuam txhab uas muag nrog cov npe thoob ntiaj teb xws li Airbus, Mitsubishi, Bank of AmericaBAC
thiab Heathrow tshav dav hlau tau koom nrog tsim Coalition rau Negative Emissions (CNE). Ntawm cov hom phiaj ntawm CNE yog "tshem tawm cov pa tawm uas tam sim no tsis tuaj yeem txo qis hauv kev lag luam xws li aviation, kev ua liaj ua teb thiab kev tsim kho, thiab thaum kawg pib thim qhov cuam tshuam ntawm kev hloov pauv huab cua," thiab "tsis yog rau decarbonise, tab sis kom decarbonise thaum ua kom ntseeg tau txuas ntxiv. economic kev vam meej. "

Kev ceeb toom tias "[d] xa cov ntaub ntawv ntawm cov kev daws teeb meem tsis zoo - suav nrog ob qho tib si xwm txheej- thiab cov kev daws teeb meem thev naus laus zis - yuav tsum muaj kev nce nyiaj tam sim ntawd - kev siv zog xav tau yog qhov tseem ceeb tab sis ua tiav," CNE tau hais tias "Kev daws teeb meem tsis zoo emissions. npaj txhij los ntsuas kev ruaj ntseg hnub no. " Pom tseeb, tag nrho tsoomfwv cov kev siv zog zoo li qhov pom hauv Txoj Cai REMOVE tuaj yeem, yog tias ua tau zoo, pab ua kom cov txheej txheem nrawm, thiab raws li CNE sau tseg, tuaj yeem pab txhawb kev hloov pauv lub zog rov qab los nrog lub ntiaj teb kub tswj cov hom phiaj.

Ib lub tuam txhab nrog cov pa roj carbon ntes thiab siv cov cuab yeej siv thev naus laus zis uas tau npaj los ntsuas kom ruaj khov hnub no yog Australian raws Mineral Carbonation International (MCi), uas tau tsim "scalable carbon platform uas muaj kev nyab xeeb ntes thiab hloov pauv kev lag luam CO₂ emissions mus rau hauv cov ntaub ntawv loj siv nyob rau hauv cov khoom uas tsis tshua muaj carbon tshiab rau kev tsim kho, kev tsim khoom thiab cov neeg siv khoom lag luam - ua kom muaj kev lag luam ncig. "

Hauv kev xam phaj tsis ntev los no, MCi Co-Founder thiab CEO Marcus Dawe tau hais rau kuv tias nws lub tuam txhab twb tau koom nrog ntau tus neeg siv khoom thoob ntiaj teb ntawm ntau yam kev tshawb fawb txog kev ua tau zoo thiab cov haujlwm uas npaj txhij los tawm. "Peb muaj kev thab plaub rau qhov peb nyob ntawm - peb tau txais txiaj ntsig zoo hauv kev hloov emissions rau hauv cov khoom muaj txiaj ntsig. Peb cov txheej txheem yog ntuj, mus tas li, scalable, thiab profitable. "

Qhov kawg nam ntawm profitability, ntawm chav kawm, yog ib tug loj tus yuam sij rau kev vam meej nyob rau hauv no arena. Yog tias CCUS tuaj yeem dhau los ua qhov chaw muaj txiaj ntsig rau cov tuam txhab loj es tsis yog lub chaw them nqi, ces kev nqis peev ntiag tug yuav luag yuav nyab xeeb rau hauv kev lag luam. Qhov no yuav muaj tseeb tshwj xeeb hauv kev lag luam nyuaj-rau-abate xws li kev tsim khoom, kev lag luam, mining thiab fossil fuel zog tsim.

Dawe hais rau kuv tias MCi cov kev daws teeb meem yuav tsum muaj peb yam kom ua tiav: CO₂, mineral feedstock, thiab ua lag luam rau cov ntaub ntawv. "Peb tab tom ua kom lub ntiaj teb ntuj tsim txheej txheem hu ua huab cua."

“Ua ntej, peb xav tau CO₂, ”nws hais. “Ntawm qhov ntawd, peb tsis ntseeg qhov twg nws tuaj. Peb tuaj yeem nqa nws los ntawm lub raj xa dej, lub chaw tsim khoom, los ntawm kev ntes huab cua ncaj qha lossis peb tuaj yeem nqa nws los ntawm cov khoom siv hluav taws xob ncaj qha. Peb tuaj yeem nqa nws los ntawm steelworks lossis cog ntoo cement, ethanol lossis chiv cog - nws tsis muaj teeb meem. Peb siv tau CO₂, thiab ua rau nws nrog ntau yam khoom noj khoom haus ntxhia, thiab qhov uas feem ntau yog nyob ze thiab yooj yim muaj rau cov neeg siv khoom abatement yog lawv cov khoom pov tseg. Los ntawm cov hlau, piv txwv li peb tuaj yeem siv steel slag. Tab sis feem ntau cov khib nyiab tsis tuaj yeem ntsuas kom txaus thiab peb tshwj xeeb hauv cov khoom siv pob zeb loj dua, xws li cov pob zeb uas muaj ntau heev xws li serpentinite thiab olivine, uas yog nplua nuj nrog magnesium lossis calcium. Thaum kawg ua kom peb cov txheej txheem kev lag luam peb xav tau kev lag luam rau cov ntaub ntawv tsim los ntawm peb txoj kev hloov pauv. "

Dawe tau hais tias cov khoom noj tuaj yeem muaj cov kab mob sib kis, tab sis MCi thev naus laus zis yuav tshem tawm thiab kho lawv. “MCi rub tawm CO₂, scrubs nws, thiab ntawd CO₂ Tom qab ntawd nkag mus rau hauv peb cov txheej txheem kom hnov ​​​​mob nrog cov zaub mov hauv cov khoom noj " hloov cov roj rau hauv cov khoom. Los ntawm cov txheej txheem no, MCi tsim cov ntaub ntawv loj xws li magnesium carbonates, amorphous silica, calcium carbonates hauv cov hmoov hmoov.

Cov hmoov no tau muab rau cov neeg siv khoom siv los tsim cov khoom lag luam xws li phab ntsa qhuav, cov pa roj carbon-nruab nrab cov cement thiab cov khoom ua vaj tse, iav, ntawv, yas thiab ntau lwm cov khoom siv dav siv. "Peb tsom mus muag peb cov khoom siv rau hauv peb cov neeg siv khoom cov khoom thiab lawv tau siv los tsav lawv cov pa roj carbon ntau. Kev txo qis ob npaug hauv kev lag luam carbon," Dawe hais. "Thaum peb cov khoom siv rau hauv phab ntsa qhuav, qhov ntawd yog cov khoom siv tsis zoo. Yog li, tsis yog peb tshem tawm thawj CO₂ los ntawm cov emitters, tab sis peb kuj tshem tawm cov khoom siv roj carbon ntau li niaj zaus, xws li gypsum lossis calcined limestone. "

Dawe tau hais tias "Qhov kev zoo nkauj ntawm peb cov thev naus laus zis yog qhov peb tuaj yeem ntsuas qhov ntawd." “Muaj ntau CO₂ thiab natural mineral feedstocks, thiab MCi yog pom ib tug ceev-loj hlob txaus siab thiab kev sim los ntawm cov neeg muas zaub tom ntej ntawm nws cov khoom uas tsis muaj carbon embodied. Peb tsis yog hais txog kev sib pauv cov khoom siv roj carbon ntau nrog cov khoom siv qis qis, tab sis kev txaus siab los ntawm cov tuam txhab lag luam los tshawb nrhiav cov qauv tshiab uas MCi cov ntaub ntawv tshem tawm cov khoom tsis sib xws, thiab. "

Tsis tau muaj ib lo lus nug tiag tiag uas ua tau raws li lub hom phiaj ntawm "xoom-zero los ntawm 2050" thiab lwm lub hom phiaj ntawm kev txo qis hauv ntiaj teb yuav ua rau muaj ntau yam kev daws teeb meem. Qhov yooj yim tsim txiaj-cim qhia lub cib fim rau cov nom tswv thiab cov neeg txhawb nqa tau koom nrog kev txhawb nqa ntawm cov khoom siv hluav taws xob txuas ntxiv thiab hluav taws xob, thiab thaj tsam ntawm CCSU / CDR tsis yog ze li kev txaus siab rau qhov sov thiab fuzzy pom thiab xa xov.

Tab sis thaum kawg ntawm hnub, CCSU zoo li yuav xaus rau txhua qhov tseem ceeb los ua kom lub ntiaj teb tuaj txog ntawm qhov chaw tsaws huab cua.