Na nso nso a, Norway's Hydro weputara akụkọ na-ekwu na ya enwetala nnọpụiche carbon nke ụlọ ọrụ na 2019, yana ịbanye n'oge carbon ọjọọ site na 2020. Ebutere m akụkọ ahụ na webụsaịtị ụlọ ọrụ ahụ wee lebakwuo anya ka Hydro si nweta nnọpụiche carbon. mgbe ọtụtụ ụlọ ọrụ ka nọ na "carbon peak" ogbo.
Ka anyị buru ụzọ hụ nsonaazụ.
N'afọ 2013, Hydro weputara atụmatụ ihu igwe na ebumnuche nke ịbụ onye na-anọpụ iche carbon site n'usoro usoro ndụ n'afọ 2020. Biko mara na, site n'echiche okirikiri ndụ.
Ka anyị leba anya na eserese na-esonụ. Kemgbe 2014, ikuku carbon nke ụlọ ọrụ ahụ dum na-agbadata kwa afọ, a na-ebelatakwa ya ka ọ bụrụ ihe na-erughị efu na 2019, ya bụ, ikuku carbon nke ụlọ ọrụ dum na mmepụta na usoro ọrụ dị ala karịa mbelata ikuku. nke ngwaahịa na ojiji ogbo.
Nsonaazụ ndekọ ego gosiri na n'afọ 2019, ikuku carbon carbon kpọmkwem nke Hydro bụ nde tọn 8.434, ikuku carbon na-apụtaghị ìhè bụ nde tọn 4.969, na mpụta nke igbukpọsị osisi kpatara bụ tọn 35,000, yana mkpokọta nde tọn 13.438. Ebe kredit carbon nke ngwaahịa Hydro nwere ike nweta na ọkwa ojiji bụ nde tọn 13.657, na mgbe ewepụsịrị ikuku carbon na kredit carbon, ikuku carbon Hydro na-adịghị mma 219,000 ton.
Ugbu a kedu ka nke ahụ si arụ ọrụ.
Nke mbụ, nkọwa. Site na usoro ndụ, enwere ike ịkọwa nnọpụiche carbon n'ọtụtụ ụzọ. N'atụmatụ ihu igwe nke Hydro, a kọwapụtara nnọpụiche carbon dị ka nguzozi n'etiti ikuku n'oge usoro mmepụta yana mbelata ikuku n'oge a na-eji ngwaahịa a.
Ụdị ngụkọta oge ndụ a dị mkpa.
Ụdị ihu igwe nke Hydro, site n'echiche nke ụlọ ọrụ ahụ, na-ekpuchi azụmahịa niile dị n'okpuru ikike ụlọ ọrụ, Ngụkọta carbon emission model na-ekpuchi ma nha 1 (ihe niile na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ) na nkwụsị nke 2 (mpụta ikuku griin na-apụtaghị ìhè n'ihi ọkụ eletrik zụrụ, okpomọkụ ma ọ bụ ọkụ). oriri uzuoku) dị ka kọmpụta azụmaahịa ụwa maka mmepe Sustainable WBCSD GHG kọwara.
Hydro mepụtara nde tọn 2.04 nke aluminum bụ isi na 2019, ma ọ bụrụ na ikuku carbon bụ 16.51 tọn CO² / ton nke aluminom dị ka nkezi ụwa si dị, mgbe ahụ ikuku carbon na 2019 kwesịrị ịbụ nde tọn 33.68, mana nsonaazụ ya bụ naanị nde 13.403. tọn (843.4+496.9), dị n'okpuru ọkwa ụwa nke ikuku carbon.
Ihe kachasị mkpa bụ na ihe nlereanya ahụ agbakọwokwa mbelata ikuku nke ngwaahịa aluminom na-ebute na ogbo eji, ya bụ, ọnụ ọgụgụ nke -13.657 nde tọn na ọnụ ọgụgụ dị n'elu.
Hydro na-ebelata ọkwa nke ikuku carbon n'ofe ụlọ ọrụ site na ụzọ ndị a.
[1] Ojiji nke ume ọhụrụ, ebe ọ na-emeziwanye teknụzụ iji belata oriri ọkụ eletrik electrolytic
[2] Mee ka ojiji nke aluminom emegharịrị emegharị
[3] Gbakọọ mbelata carbon nke ngwaahịa Hydro n'oge usoro ojiji
Ya mere, a na-enweta ọkara nke nnọpụiche carbon carbon Hydro site na mbelata ikuku nke teknụzụ, ma gbakọọ ọkara nke ọzọ site na ụdị.
1.Ike mmiri
Hydro bụ ụlọ ọrụ hydropower nke atọ kachasị na Norway, nwere ikike kwa afọ nke 10TWh, nke a na-eji maka mmepụta nke aluminom electrolytic. Mgbapụta carbon nke na-emepụta aluminum sitere na ike mmiri dị ala karịa nkezi ụwa, n'ihi na ọtụtụ n'ime mmepụta aluminom nke ụwa na-eji ọkụ eletrik sitere na mmanụ ọkụ dị ka gas ma ọ bụ coal. N'ihe nlereanya ahụ, mmepụta aluminom nke Hydropower ga-ewepụ aluminom ndị ọzọ n'ahịa ụwa, nke ya na ibelata ihe ọkụkụ. (Echere echiche a gbakọtara.) Nke a dabere na ọdịiche dị n'etiti aluminom emepụtara site na ike mmiri na nkezi zuru ụwa ọnụ, nke ekwuru na mkpokọta Hydro site na usoro a:
Ebe: 14.9 bụ ụwa nkezi ọkụ eletrik maka mmepụta aluminum 14.9 kWh / kg aluminum, na 5.2 bụ ihe dị iche n'etiti carbon emissions nke aluminum na-emepụta site Hydro na "ụwa nkezi" (ewezuga China) larịị. Ọnụọgụ abụọ a dabere na akụkọ sitere na International Aluminum Association.
2. A na-eji ọtụtụ aluminom emegharịrị emegharị
Aluminom bụ ọla nke enwere ike ịmegharị ihe fọrọ nke nta ka ọ bụrụ ruo mgbe ebighị ebi. Mgbapụta carbon nke aluminom emegharịrị bụ naanị ihe dịka 5% nke aluminom bụ isi, na Hydro na-ebelata ikuku carbon ya n'ozuzu ya site n'iji aluminom emegharịrị emegharị nke ọma.
Site na ike mmiri na mgbakwunye nke aluminom emegharịrị, Hydro enweela ike ibelata ikuku carbon nke ngwaahịa aluminom ruo n'okpuru 4 tọn CO²/ton nke aluminom, na ọbụna ruo n'okpuru 2 tọn CO²/ ton nke aluminom. Ngwaahịa alloy Hydro's CIRCAL 75 na-eji aluminom emegharịrị karịa 75%.
3. Gbakọọ mbelata carbon emission emepụtara site na iji ogbo nke ngwaahịa aluminom
Hydro nlereanya na-ekwere na ọ bụ ezie na isi aluminum ga emit a otutu griin haus gas na mmepụta ogbo, fechaa ngwa nke aluminom nwere ike ukwuu ibelata ume oriri, si otú mbenata griin haus emissions na ojiji ogbo, na nke a akụkụ nke emission Mbelata mere site na A na-agụkwa ngwa aluminom dị fechaa na onyinye na-anọpụ iche carbon nke Hydro, ya bụ, ọnụ ọgụgụ nke nde tọn 13.657. ( Echiche a dị mgbagwoju anya ma sie ike ịgbaso.)
N'ihi na Hydro na-ere naanị ngwaahịa aluminom, ọ na-achọpụta ngwa njedebe nke aluminom site na ụlọ ọrụ ndị ọzọ na yinye ụlọ ọrụ. Ebe a, Hydro na-eji a Life-Cycle Assessment (LCA), nke na-ekwu na ọ bụ onye ọzọ nọọrọ onwe ya.
Dịka ọmụmaatụ, na mpaghara njem, ọmụmụ ihe ndị ọzọ egosila na maka 1kg nke aluminom dochie 2kg nke ígwè, 13-23kg nke CO² nwere ike belata n'ogologo ndụ ụgbọ ala. Dabere na olu nke ngwaahịa aluminom nke a na-ere na ụlọ ọrụ dị iche iche dị n'okpuru ala, dị ka nkwakọ ngwaahịa, ihe owuwu, refrigeration, wdg, Hydro na-agbakọ mbelata ikuku nke sitere na ngwaahịa aluminom nke Hydro mepụtara.
Oge nzipu: Jul-20-2023