CO2
topic on 2 shows · 11 statements across 7 episodes
11 statements about CO2, every show
Dell: Almost Every Steel Mill Produces More CO2 Than Steel
“So if you look at, like, the total process Of the iron making and the steel making together for a vet, just like a very typical conventional blast furnace facility, you're usually going to end up with more than two tons of CO two per ton of steel, which is kin…”
Friedmann: Shipping CO2 costs ~$18/ton by truck versus ~$2/ton by pipeline
“So it costs something like 18 bucks a ton or something like that to ship things by truck, where it might cost two bucks a ton to ship it by pipeline, right?”
Friedmann: CO2-to-concrete is an exothermic, gigaton-scale market
“So turning CO two into concrete is a gigaton market, and it's not nuts. It actually releases energy.”
Friedmann: Hundreds of companies convert CO2 into building materials
“Now there's hundreds of companies that turn CO₂ into those kinds of products.”
Friedmann: Advanced carbon materials like graphene sell for $100k per ton
“If you can actually turn CO two into those materials, they're hard to make, but boy, are they valuable. They're like a 100,000 dollars a ton.”
Direct air capture must extract one CO2 molecule per 2,500 air molecules
“You're pulling one molecule of CO two out of every 2500 molecules. So fundamentally it's a You know, an expensive gas separation problem.”
Heirloom's lime trays capture atmospheric CO2 and become limestone within days
“We stack these baking trays vertically To, you know, 2030, 40, 50 feet, and you effectively have a very tall baking rack with trays with thin layers of lime, and as the air passes through, basically gobbles up that CO₂, and in a few days it turns into calcium …”
Thiel: Single-pass CO2 conversion does not significantly move green methanol economics
“If you get A better conversion of CO two and hydrogen to methanol on a single pass. It just really doesn't move the overall economics in a huge way because, again, back to a previous point, CO two and hydrogen are the big cost drivers in that system.”
Hawkins: Mycorrhizal fungi cannot be engineered to draw down additional carbon dioxide
“It's not like we can somehow use mycorrhizae
To additionally now draw down more CO two than they are already.”
Slesserev: Unclear If Soil Erosion Is Net Carbon Source or Sink
“For instance, that erosion question I just brought up earlier, there's been an ongoing debate about, you know, whether
The erosion of soil and transport of that carbon amounts to a source or a sink of CO₂ to the atmosphere.
We don't really even feel certain ab…”
Bataille: CCS costs $40-60 per ton for pure CO2, $80-120 for post-combustion
“Typically the numbers we work with is if you've got pure CO₂ to work with, you probably have 40, it's 40 to 60 dollars per ton. But if you're using, doing post-combustion with a clean flue gas, probably 80, the end application will be 80 to a hundred dollars p…”