Geoengineering Info Profile picture
Apr 22, 2023 8 tweets 6 min read Read on X
🚨NEW REVIEW PAPER🚨

"This review provides an extensive evaluation of recent advances in multiscale models used for the theoretical physical descriptions of #DirectAirCapture."

🧵
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"Reviewed (CO2 mass) transfer works span from the ab initio density functional theory calculation relationships to mesoscale Monte Carlo, molecular dynamics simulations & micro-kinetics, adsorption/desorption, & most commonly-investigated specific macroscale concept."
#DAC
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The modelled #DAC processes properties reported in the literature have been compared by the authors of this review paper, which allowed them "to identify the most effective sorbents."
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This paper found that "Amine functionalized metal-organic frameworks exhibit low energy requirements, the lowest reported was 1000 kWh tCO2−1, while the lowest published cost was 60 $ tCO2−1."
#DAC
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Researchers also figured out that "the market demand for CO2 is expected to exponentially rise up to 6.1 Gt in 2050, while the cost of implementing #DAC technologies is predicted to be reduced under 125 $ tCO2−1 in the year 2030."
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This paper concluded that, "further #DAC modelling research activities in CO2 (sorption) bed form phenomena could not only break the barriers of current renewable tech., but also couple the CO2 reactions with the sequestration, reactors, or with electrolysis for e-fuels."
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Read the open-access review paper based on multiscale modelling of Direct Air Capture ⬇️
sciencedirect.com/science/articl…

#DirectAirCapture
#DAC
#MultiscaleModellingSimulations

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More from @geoengineering1

May 28
🚨📅CDR REMINDERS!📅🚨

Here's a list of what's coming up this week (𝟮𝟴 𝗠𝗮𝘆 - 𝟬𝟯 𝗝𝘂𝗻𝗲 𝟮𝟬𝟮𝟰) in the field of #CarbonDioxideRemoval:

#CDREvents #Deadlines #CDRJobs

🧵1/12 Image
EVENT—A Buyers Guide to Enhanced Rock Weathering by @senken_io

🗓️28 May 2024
📍Online

2/12
senken.io/webinars/a-buy…
EVENT—In-situ Enhanced Mineralization Value Proposition as a Carbon Dioxide Removal Technique

🗓️28 May 2024
📍Online
🔗

3/12events.teams.microsoft.com/event/60f9a066…
Read 14 tweets
May 26
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top Carbon Dioxide Removal News / Developments, Reports & Scientific Papers from this week (𝟮𝟬 𝗠𝗮𝘆 - 𝟮𝟲 𝗠𝗮𝘆 𝟮𝟬𝟮𝟰)

🔗:

#CarbonDioxideRemoval
#CDR

🧵0/24
Google, Meta, Microsoft & Salesforce formed Symbiosis Coalition, an alliance meant to scale nature-based CDR. Symbiosis wants to ease access to 20M tons of natural CDR credits by 2030, making it the largest ever advance market commitment of the sort.

1/24
symbiosiscoalition.org/perspectives/i…
@280earth, a DAC tech developer, announced that it has completed construction & started operating its first direct air capture facility in Oregon. The firm also announced it has officially closed a $50M Series B Round of investment.

2/24
www-oregonlive-com.cdn.ampproject.org/c/s/www.oregon…
Read 26 tweets
May 22
🚨In a NEW study, novel self-operating electrochemical tech is presented "that not only combines #OIF & #OAE but also recovers H2 gas from seawater, hence offering a promising solution for achieving quantifiable & transparent large-scale #mCDR."

🔗

🧵1/12 nature.com/articles/s4418…
Image
Electrochemical OIF (EOIF) Tech

"This tech represents a promising solution to increase the ocean capacity for CDR & enhance primary production in the ocean based by combining both OIF & OAE concepts, in addition to potentially allowing for H2 recovery from the ocean."

2/12 Image
The proposed EOIF relies on releasing Fe in ocean via electrochemical reactions at electrode. The electrochemical release of Fe & OH-, which are controlled by Faraday’s law, demonstrates an engineered route to regulate Fe release rate, its bioavailability & pH of seawater.

3/12 Image
Read 13 tweets
May 21
🚨📅CDR REMINDERS!📅🚨

Here's a list of what's coming up this week (𝟮𝟭 𝗠𝗮𝘆 - 𝟮𝟳 𝗠𝗮𝘆 𝟮𝟬𝟮𝟰) in the field of #CarbonDioxideRemoval:

#CDREvents #Deadlines #CDRJobs

🧵1/16 Image
EVENT—Quarterly Policy Update - CDR policy in Germany by @CarbonGap and Remove

🗓️21 May 2024
📍Online
🔗

2/16us06web.zoom.us/webinar/regist…
EVENT—Carbon Stacking: What you need to know by @AgreenaApp

🗓️21 May 2024
📍Online
🔗

3/16view6.workcast.net/register?cpak=…
Read 17 tweets
May 20
🚨“While Germany aims to achieve climate neutrality by 2045, reducing CO2 emissions must be the primary step. #CDR measures, while important, cannot remove the large amount of CO2 emitted in 🇩🇪. It is assumed that CDR can only offset ~5–15% of current emissions.”

DETAILS🧵1/11 Image
But how effective and efficient are the various possible #CDR measures? What are the hurdles to implementing them? What are the costs? How environmentally friendly are they?

2/11
The research team investigated these and other questions in its latest study in which it analyzed the feasibility of 14 #CDR measures that could be implemented in Germany. The measures include #DACCS & #BECCS as well as measures to increase carbon uptake by ecosystems.

3/11
Read 12 tweets
May 19
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top Carbon Dioxide Removal News / Developments, Reports & Scientific Papers from this week (𝟭𝟯 𝗠𝗮𝘆 - 𝟭𝟵 𝗠𝗮𝘆 𝟮𝟬𝟮𝟰)

🔗:

#CarbonDioxideRemoval
#CDR

🧵0/20
Frontier – the advance market commitment aiming to accelerate the development of CDR technologies, announced that they are accepting applications for their fourth prepurchase programme to receive $500k each.

Deadline to apply: 28 May 2024

1/20
frontierclimate.com/apply
@ToucanProtocol announced a total of $250k in grant funding available to apps integrating CHAR: the world's first onchain carbon dioxide removal credit pool, and a building block for planet positive applications.

2/20
blog.toucan.earth/integrate-char…
Read 23 tweets

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