Decarbonizing our Operations
Decarbonizing our Operations
DECARBONIZING OUR OPERATIONS
Our Pathway to Carbon Neutrality
Future in Action starts in our operations. We are evolving our production process to reduce its carbon footprint every step of the way.
Alternative Fuels and Co-Processing
Alternative fuels can eliminate our reliance on fossil fuels, powering our kilns while also providing other benefits for the environment. Alternative fuels, particularly biomass, are a byproduct of humanity, which otherwise end up in landfills. The ensuing decomposition generates methane, a greenhouse gas up to 80 times more harmful to the environment than CO2.
Co-processing is a more efficient waste management solution than landfilling and incineration, this means that the cement industry is a net consumer of waste and contributes to a more Circular Economy.
There are four main benefits of co-processing for climate action:
Reduction of CO2 emissions in our cement manufacturing process.
Use of alternative fuels as a measure to help counteract pollution.
Decrease the amount of waste deposited in landfills.
Minimizing public investment costs for new waste facilities.
Clinker Factor Reduction
Clinker, the key component of cement, is produced by fusing together limestone, clay, and other materials in a rotary kiln at temperatures nearing 1500 Celsius. This is a very energy-intensive and carbon-emitting process. In fact, most direct CO2 emissions in the cement production process are generated by the chemical reaction of clinker production in our kilns. Our efforts concentrate on substituting it with byproducts from other industries like blast furnace slag, and fly ash. Waste from other industries and alternative raw materials allow us to reduce the clinker factor while maintaining the same quality and durability of our products. Our new clinker types have up to 20% lower CO2 emissions.
Renewable and Cost-Effective Energy
During 2021, around 30% of our operation’s power came from clean electricity sources. Through this action, our indirect emissions, related to the electricity consumed in our plants, also contribute to reducing our carbon footprint.
net CO2 emissions per ton of cementitious product, avoiding 8.6 million tons.
of our cement operations' electricity came from clean electricity.
of our global alternative fuels rate.
of our plants co-processed close to 3.3 million tons of waste as alternative fuels.
In 2021 we achieved our best performance ever in the use of alternative fuels, clean electricity consumption, and the largest annual reduction in clinker factor in the last 10 years.
Decarbonizing Our Production Process
Future In Action is a long-term program which will continue to work on our production process to reduce our carbon footprint and meet our 2050 goal of becoming a net-zero CO2 company.
Kuondoa kaboni katika shughuli zetu: Njia yetu ya kutokuwa na kaboni katika shughuli zetu inaanza katika shughuli zetu. Tunabadilisha mchakato wetu wa uzalishaji ili kupunguza alama yake ya kaboni kila hatua ya njia. "Kutumia mafuta mbadala na ""co-processing"" kunaweza kuondoa utegemezi wetu kwa mafuta ya mafuta, kuendesha tanuru zetu na kutoa faida nyingine kwa mazingira." Mafuta mbadala, hasa biomass, ni bidhaa ya binadamu, ambayo vinginevyo kuishia katika majumba ya taka. Mimea hiyo hufichuka na kutokeza gesi ya methane, ambayo ni hatari kwa mazingira mara 80 kuliko CO2. Kwa sababu ya kuunganisha na kuhifadhi, kutengeneza na kuhifadhi taka ni njia bora ya kuondoa taka, na kwa hivyo, sekta ya saruji ni mtumiaji wa taka na inasaidia kuendeleza uchumi wa mviringo. Kuna faida nne za msingi za usindikaji wa pamoja kwa hatua ya hali ya hewa: Kupunguza uzalishaji wa CO2 katika mchakato wetu wa utengenezaji wa saruji. Matumizi ya mafuta mbadala kama hatua ya kusaidia kukabiliana na uchafuzi wa mazingira. Kupunguza kiasi cha taka iliyowekwa katika majumba ya taka. Kupunguza gharama za uwekezaji wa umma kwa ajili ya vifaa vipya vya taka. Clinker ni sehemu muhimu ya saruji, ambayo hutengenezwa kwa kuchanganya pamoja chokaa, udongo, na vifaa vingine katika tanuru ya mzunguko kwa joto karibu 1500 Celsius. Hii ni mchakato wa kutumia nishati nyingi na kutokeza kaboni. Kwa kweli, uzalishaji mkubwa wa CO2 katika mchakato wa utengenezaji wa saruji hutokana na athari za kemikali za utengenezaji wa clinker katika tanuru zetu. Jitihada zetu zinazingatia kuibadilisha kwa bidhaa za viungo kutoka viwanda vingine kama vile slag ya tanuru ya juu, na majivu ya kuruka. Matokeo kutoka viwanda vingine na malighafi mbadala inaruhusu sisi kupunguza clinker sababu wakati kudumisha ubora sawa na kudumu ya bidhaa zetu. Aina mpya za clinker zina kiwango cha chini cha CO2 cha 20%. Nishati ya upya na yenye ufanisi wa gharama Wakati wa 2021, karibu 30% ya nguvu ya operesheni yetu ilitoka kwa vyanzo safi vya umeme. Kupitia hatua hii, uzalishaji wetu wa moja kwa moja, unaohusiana na umeme unaotumiwa katika mitambo yetu, pia huchangia kupunguza alama yetu ya kaboni. Utoaji wa CO2 kwa kila tani ya bidhaa ya saruji, kuepuka tani milioni 8.6 Kwa mfano, katika sekta ya ujenzi wa saruji, umeme unaotumiwa ni wa hali ya juu. Kwa mujibu wa ripoti ya Global Alternative Fuels Rate (GARR), Katika miaka ya hivi karibuni, viwanda vya umeme vimefanya kazi karibu na tani milioni 3.3 za taka kama mafuta mbadala. Katika 2021, tulipata utendaji wetu bora kabisa katika matumizi ya mafuta mbadala, matumizi safi ya umeme, na kupunguzwa kwa kila mwaka kwa sababu ya clinker katika miaka 10 iliyopita. "Kupunguza kaboni katika mchakato wetu wa uzalishaji ni mpango wa muda mrefu ambao utaendelea kufanya kazi kwenye mchakato wetu wa uzalishaji ili kupunguza alama yetu ya kaboni na kukidhi lengo letu la 2050 la kuwa kampuni ya CO2 ya ""net-zero."""