Uploaded July 2024 | Updated September 2026, 2 weeks ago
In this video we will take a look at a technology that is a brand new take on some of the most important and most emissions intensive industrial processes that modern society relies on. We’re talking cement manufacturing – responsible for 8% of global emissions on its own. Processing minerals like iron ore, alumina, spodumene. Together these processes supply the materials we need for modern life – concrete, steel, aluminium, batteries, to go in buildings, wind turbines, solar panels and EVs that we need into the future. These materials are vital for the future but come with stubborn emissions that can’t be simply electrified away.
We are going to head inside the R&D facility for Calix and their spinoff Leilac (Low Emissions Lime And Cement). They have reimagined the humble kiln or furnace that has been powering these critical processes for hundreds and in some cases thousands of years, to get rid of those hard to abate process emissions. And they’ve invited us here today to take a look and tell us how it works.
If you would like to help develop the Engineering with Rosie channel, you could consider joining the Patreon community, where there is a chat community (and Patreon-only Discord server) about topics covered in the videos and suggestions for future videos and production quality improvements patreon.com/engineeringwithrosie
Or for a one-off contribution you can support by buying a coffee ☕️ here —
buymeacoffee.com/engwithrosie
Follow us for more short videos:
instagram.com/engwithrosie
tiktok.com/@engineeringwithrosie
Bookmarks:
00:00 Intro
00:39 Overview of CALIX & LEILAC
01:11 Challenges in achieving low-emission cement production
02:20 LEILAC's solution
02:39 Differences from conventional kilns
03:05 How LEILAC kilns work
04:31 Lab-scale calciner
05:04 Top of the calciner
05:59 Bottom of the calciner
06:30 What material is the kiln made of?
07:15 How can LEILAC be integrated into an existing cement manufacturing plant?
08:02 LEILAC carbon capture vs. carbon capture & storage (CCS)
08:17 Is it possible to avoid combustion emissions altogether?
09:23 How much does it cost?
09:41 Current progress in the cement industry
11:01 Hard-to-abate sectors
11:52 Where would LEILAC be really cost-effective?
Sponsorship policy is here: pardaloteconsulting.com/blog/engineering-with-rosie-sponsorship-policy
Sources:
leilac.com/technology
understanding-cement.com/kiln.html#:~:text=Basic%20principle%20of%20a%20precalciner%20cement%20kiln
weforum.org/agenda/2019/09/cement-production-country-world-third-largest-emitter
ember-climate.org/data/data-tools/carbon-price-viewer
https://www.spglobal.com/commodityinsights/en/market-insights/latest-news/energy-tran[…]ged-carbon-capture-tax-credit-but-challenges-persist-experts
heidelbergmaterials.com/en/pi-23-03-2022
leilac.com/cemex-projects
leilac.com/project-leilac-1
leilac.com/news/leilac-2-heidelberg-materials-cement-plant-ennigerloh-germany
The Engineering with Rosie team is:
Rosemary Barnes: Presenter, producer, writer
Javi Diez: Editor linkedin.com/in/javierdiezsuarez
Fatini Nur: Research and production assistant linkedin.com/in/fatinin
In this video we will take a look at a technology that is a brand new take on some of the most important and most emissions intensive industrial processes that modern society relies on. We’re talking cement manufacturing – responsible for 8% of global emissions on its own. Processing minerals like iron ore, alumina, spodumene. Together these processes supply the materials we need for modern life – concrete, steel, aluminium, batteries, to go in buildings, wind turbines, solar panels and EVs that we need into the future. These materials are vital for the future but come with stubborn emissions that can’t be simply electrified away.
We are going to head inside the R&D facility for Calix and their spinoff Leilac (Low Emissions Lime And Cement). They have reimagined the humble kiln or furnace that has been powering these critical processes for hundreds and in some cases thousands of years, to get rid of those hard to abate process emissions. And they’ve invited us here today to take a look and tell us how it works.
If you would like to help develop the Engineering with Rosie channel, you could consider joining the Patreon community, where there is a chat community (and Patreon-only Discord server) about topics covered in the videos and suggestions for future videos and production quality improvements patreon.com/engineeringwithrosie
Or for a one-off contribution you can support by buying a coffee ☕️ here —
buymeacoffee.com/engwithrosie
Follow us for more short videos:
instagram.com/engwithrosie
tiktok.com/@engineeringwithrosie
Bookmarks:
00:00 Intro
00:39 Overview of CALIX & LEILAC
01:11 Challenges in achieving low-emission cement production
02:20 LEILAC's solution
02:39 Differences from conventional kilns
03:05 How LEILAC kilns work
04:31 Lab-scale calciner
05:04 Top of the calciner
05:59 Bottom of the calciner
06:30 What material is the kiln made of?
07:15 How can LEILAC be integrated into an existing cement manufacturing plant?
08:02 LEILAC carbon capture vs. carbon capture & storage (CCS)
08:17 Is it possible to avoid combustion emissions altogether?
09:23 How much does it cost?
09:41 Current progress in the cement industry
11:01 Hard-to-abate sectors
11:52 Where would LEILAC be really cost-effective?
Sponsorship policy is here: pardaloteconsulting.com/blog/engineering-with-rosie-sponsorship-policy
Sources:
leilac.com/technology
understanding-cement.com/kiln.html#:~:text=Basic%20principle%20of%20a%20precalciner%20cement%20kiln
weforum.org/agenda/2019/09/cement-production-country-world-third-largest-emitter
ember-climate.org/data/data-tools/carbon-price-viewer
https://www.spglobal.com/commodityinsights/en/market-insights/latest-news/energy-tran[…]ged-carbon-capture-tax-credit-but-challenges-persist-experts
heidelbergmaterials.com/en/pi-23-03-2022
leilac.com/cemex-projects
leilac.com/project-leilac-1
leilac.com/news/leilac-2-heidelberg-materials-cement-plant-ennigerloh-germany
The Engineering with Rosie team is:
Rosemary Barnes: Presenter, producer, writer
Javi Diez: Editor linkedin.com/in/javierdiezsuarez
Fatini Nur: Research and production assistant linkedin.com/in/fatinin




![Direct Air Capture: Climate Savior or Distraction?
Click my link to try Aura Health and save 25%! Your sense of peace and improved sleep starts here: https://www.aurahealth.io/rosie23
Direct Air Capture, or DAC, represents a significant shift in our approach to managing carbon dioxide emissions. Unlike traditional carbon capture and storage, CCS, that targets point sources of emissions like factories or power plants, DAC can be set up anywhere, it doesn’t need to be in the same place or even at the same time as emissions are occurring.
The flexibility be able to suck carbon out of the air anywhere is nice, but that flexibility comes at a big cost in terms of both money and energy use.
In this video we dive into the world of DAC: how the technology works, who’s doing it and the controversial role of DAC in our mission to combat climate change.
If you would like to help develop the Engineering with Rosie channel, you could consider joining the Patreon community, where there is a chat community (and Patreon-only Discord server) about topics covered in the videos and suggestions for future videos and production quality improvements https://www.patreon.com/engineeringwithrosie
Or for a one-off contribution you can support by buying a coffee ☕️ here —
https://www.buymeacoffee.com/engwithrosie
Follow us for more short videos:
https://www.instagram.com/engwithrosie/
https://www.tiktok.com/@engineeringwithrosie
Bookmarks:
00:00 Intro
01:18 DAC vs. CCS
02:41 How does direct air capture work?
03:12 Liquid DAC
03:52 Solid DAC
04:33 Aura Health sponsored segment
06:01 Progress on DAC Projects
08:56 Controversial aspects of DAC
10:09 Oil and Gas using DAC to delay climate action
11:12 DAC costs a lot of money
12:26 DAC uses a lot of energy
14:14 DAC compared to other climate action
15:23 Scaling up
16:09 DACs place in the energy transition
Related videos:
Bioenergy In All Its Complexity: The Good the Bad and the Ugly https://www.youtube.com/watch?v=bREt3U47LeY&t=5s&ab_channel=EngineeringwithRosie
From Waste to Wonder: The Surprising Uses of Carbon Dioxide https://www.youtube.com/watch?v=KpGvHpB7SQ0&ab_channel=EngineeringwithRosie
How to UNDO Climate Change: Bioenergy with Carbon Capture (BECCS) https://www.youtube.com/watch?v=7bzIIKGRd4k&t=576s&ab_channel=EngineeringwithRosie
Turning CO2 Into Building Materials: Mineral Carbonation International Tour https://www.youtube.com/watch?v u5ZcCccr88&t=5s&ab_channel=EngineeringwithRosie
Sources:
https://carbonengineering.com/our-technology/
https://www.globalthermostat.com/
https://climeworks.com/https://
www.theguardian.com/environment/2021/sep/09/worlds-biggest-plant-to-turn-carbon-dioxide-into-rock-opens-in-iceland-orca
https://carbonherald.com/global-thermostat-unveils-its-demonstration-direct-air-capture-plant/
https://www.oxy.com/news/news-releases/occidental-and-blackrock-form-joint-venture-to-develop-stratos-the-worlds-largest-direct-air-capture-plant/#:~:text=STRATOS%20is%20designed%20to%20capture,commercially%20operational%20in%20mid%2D2025.
https://ourworldindata.org/grapher/cumulative-co2-emissions-region?stackMode=absolute&country=~OWID_WRL
https://www.hartenergy.com/exclusives/oxy-ceo-vicki-hollub-talks-technology-carbon-management-204496
Journals & Reports
https://www.sciencedirect.com/science/article/pii/S2405844020325731
https://www.iea.org/reports/direct-air-capture-2022/executive-summary
3. https://iea.blob.core.windows.net/assets/78633715-15c0-44e1-81df-41123c556d57/DirectAirCapture_Akeytechnologyfornetzero.pdf
4. https://climate.nasa.gov/news/2915/the-atmosphere-getting-a-handle-on-carbon-dioxide/#:~:text=The%20concentration%2[…]de,it%20was%20near%20370%20ppm
5. https://www.iea.org/energy-system/carbon-capture-utilisation-and-storage/direct-air-capture#tracking
The Engineering with Rosie team is:
Rosemary Barnes: Presenter, producer, writer
Javi Diez: Editor https://www.linkedin.com/in/javierdiezsuarez/
Fatini Nur: Research and production assistant https://www.linkedin.com/in/fatinin Direct Air Capture: Climate Savior or Distraction?](https://i.ytimg.com/vi/qM51IkGMdaQ/mqdefault.jpg)





