marcuslima

7 ms·

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by marcuslima 8mo ago
Thanks! Yea it started as a bit of an anger management project. I am the absolute worst version of myself when forced to endure customer service calls. 1. The user (you) needs to provide it in the prompt for the call. I have ideas for being
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Show HN: AI that calls businesses so you don't have to(thisispamela.com)
2 points by marcuslima 8mo ago|2 comments
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by marcuslima 4y ago
Awesome, impactful concept, this can be huge! Now comes the challenge of scaling
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by marcuslima 5y ago
Yep, absolutely right! Combining our product with something like the carbon curing tech of Solidia or CarbonCure would make a net-negative concrete. I don't consider us competitors at all!
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by marcuslima 5y ago
Same idea for iron!
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by marcuslima 5y ago
Agreed!
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by marcuslima 5y ago
Impressive analysis! Missed out on a couple details, but I'll take that as a thoroughly researched/analyzed endorsement. Most importantly, we'll be scaling up a lot faster. Our current 1t/yr is just a demo. Our current r
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by marcuslima 5y ago
Absolutely! This is a big part of our thinking for how this integrates with future energy systems based on renewables. We'd offtake cheap electricity when oversupplied, like in California right now
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by marcuslima 5y ago
Our process produces calcium carbonate, CaCO3, which cement producers can then burn to make quicklime, CaO. This does release CO2 but that CO2 has been captured from the atmosphere in the process of making that calcium carbonate. We only ad
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by marcuslima 5y ago
Yeah absolutely, the CO2 balance comes from re-equilibration with the atmosphere. The rivers replenish calcium content on a longer time scale. But as you point out we're in no danger of running out of calcium in the oceans
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by marcuslima 5y ago
We make CaCO3, I mention CaO here because that's what cement producers ultimately need. They heat up limestone (CaCO3) to make CaO
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by marcuslima 5y ago
All 'waste' we produce we either consume in our process or we're able to sell as a commercial product! Not bad tackling ocean acidifcation to boot
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by marcuslima 5y ago
The ocean is 20x supersaturated with calcium and is constantly being replenished by geological stores of the stuff coming in through rivers. As long as the ecosystem remains supersaturated this shouldn't be a problem for any marine lif
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by marcuslima 5y ago
Convenient that ;)
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by marcuslima 5y ago
Absolutely, CO2 emissions from transport isn't much of an issue compared with the saving. Hopefully someone like Remora will crack that problem anyhow. We'll most likely need to build our plants closer to where the market is thoug
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by marcuslima 5y ago
Thanks! ABsolutely, looking at optimizing time of day we operate will be important. As grids become more dominated by renewables a solution like ours will be able to help stabilize acting as a electricity sink when the wind is blowing too h
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by marcuslima 5y ago
Yep! It'll be quite a journey to get there
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by marcuslima 5y ago
That's actually the trickiest part of the engineering, but we've managed to make it directly compatible with the an intermittent energy source like solar and wind
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by marcuslima 5y ago
Will DM you
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by marcuslima 5y ago
That's part of the CO2 saturation of the ocean. So when we remove that dissolved CO2 that equivalent amount is removed from the atmosphere
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by marcuslima 5y ago
So true, it's a surprising statistic to most that 8% of global emissions is actually from concrete
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by marcuslima 5y ago
Love the enthusiasm to share! This is a bit of a coming out party for us, so not much out there in the way of public information. We'll add to that as it comes higher on the list of priorities
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by marcuslima 5y ago
We actually use concentrated brine in our solution!
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by marcuslima 5y ago
Some exciting innovations in this field in terms of using white paints to reflect away light and reduce surface temperatures!
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by marcuslima 5y ago
Thanks, will keep you in mind! Watch out for posts on Work at a Start-up for when we expand our team in the next few months
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by marcuslima 5y ago
All intiatives worth doing. Can't tackle this problem from too many angles at this stage. Alternative reinforcement would be compatibel with our solution in any case
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by marcuslima 5y ago
We're currently driving it up in a van from Southampton!
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by marcuslima 5y ago
Yes! It's true wind, and solar especially, have a small carbon footprint associated with production, but our process is carbon negative enough to more than compensate for it
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by marcuslima 5y ago
I love Trondheim! Gorgeous city
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by marcuslima 5y ago
Definitely one for us to get involved with. Unofrtunately it's a 5 year timeline, but that's still not a bad ROI

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