Geoengineering Info Profile picture
Apr 27 4 tweets 4 min read Twitter logo Read on Twitter
@ParallelCarbon is "developing the world’s most affordable #DirectAirCapture (#DAC) process, relying only on water, wind, sunshine, & abundant minerals."

➡️parallelcarbon.com/tech

🎛️ How this technology works is explained in a 🧵 below ⬇️

[1/4] ImageImage
"@ParallelCarbon’s patent-pending #DAC system captures CO2 from air using minerals that transform their chemical structure while doing so. These minerals are processed using aqueous, acid-base reactions (produced by water electrolysis) to permanently store the captured CO2."
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Production of green #hydrogen:
"This #DAC technology is special: 
@ParallelCarbon's electrolyzer also produces green hydrogen, which is an important tool for decarbonizing industries."
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"This project will utilize CO2 to create infrastructure materials from highly alkaline materials & wastes, & will also durably store CO2 via underground injection."

"Through these pathways, @ParallelCarbon will store more than 2 gigatonnes of CO2/yr from the air by 2040."
4/4 Image

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More from @geoengineering1

Apr 29
🚨PAPER🚨

"Many scenario analyses suggest that #NegativeEmissionTechnologies, such as #bioenergy with carbon capture and storage & #afforestation, are required to achieve #NetZero target, but their large-scale deployment has a trade-off relationship with food security."
🧵
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So, a new study considered an innovative #NET, "direct air carbon capture and storage (#DACCS), and analyzed its impact on global food access based on an indicator defined by food expenditure per GDP."
2/7
Study found that "the scenario considering DACCS mitigates the adverse impact on food access in regions such as Sub-Saharan Africa compared to the scenario not considering #DACCS by alleviating food expenditure increase & GDP loss associated with emission reduction efforts."
3/7
Read 7 tweets
Apr 29
🚨PAPER🚨

#DAC of CO2 from the atm. is being explored as a tech. that can contribute to the goal of reaching #NetZero CO2 emissions.

A new study led by @DonglongFu1 showed that the use of zeolitic materials are feasible for DAC when it is integrated with H2O harvesting.
🧵
1/7 Image
"A combination of a commercially available desiccant, AQSOA-Z02A, and a mordenite-type zeolite (MOR) enables
continuous operation of a designed #DAC system comprised of two
parallel units with a regeneration temperature of 100°C," research finds.
2/7 Image
Furthermore, "the system
using pure #zeolite alone requires regeneration at temperatures between 200°C and 300°C."
3/7 ImageImage
Read 7 tweets
Apr 28
🚨𝐏𝐀𝐏𝐄𝐑🚨

📝 "The N-doped #carbon material is one of the most efficient #adsorption materials in the field of carbon capture." So, in a recent study a series of N-doped #biochars were successfully prepared by a facile solvent-free method.

Details in a 🧵below ⬇️

[1/7] Image
Among all N-doped biochars, "the #biochar prepared with corncob🌽 powder, K2CO3 & urea at 800°C showed highest #adsorption ability (5.69 mmol/g at 0°C & 1 bar) & selectivity (38.24 at CO2/N2 = 10/90). The biochar also showed excellent thermal stability & cycle performance."
2/7
"Notable, correlation analysis showed that ultra-micropores were the decisive factor for #CO2 #adsorption at low temperatures; nevertheless, the effect of N-doping would gradually appear with the increase of adsorption temperature."
3/7 Image
Read 7 tweets
Apr 27
"Inversion Point Technologies Ltd. is working to commercialize a #novel direct atmospheric CH4 conversion tech. When deployed at scale this will reduce the rigor of #globalwarming effects & improve air quality by depleting CO & VOCs in the atm."
➡️ inversionpoint.org

🧵
1/4 Image
Direct Atmospheric Conversion Technology:

"Through the use of IPTL’s patent pending direct atmospheric conversion technology, every source of vented #methane worldwide can be addressed with one safe, cost effective, scalable technology."
2/4 Image
Natural Inversion Layers:

"IPTL makes use of natural inversion layers to enable the destruction of atmospheric hydrocarbons high above the ground. Sustained wind speeds at elevation distribute a proprietary substance over a wide area to increase its effectiveness."
3/4 Image
Read 4 tweets
Apr 26
🚨🧾𝐍𝐄𝐖 𝐑𝐄𝐏𝐎𝐑𝐓🧾🚨
The Climate Change Authority of #Australia has issued a report that pinpoints #CarbonSequestration as critical to reduce emissions.

"Storing C away from the atm is integral, both to avert #GHGs from entering the atm & to #remove them from it."
🧵
1/11 Image
The report notes that "while conventional #CarbonAccounting is simple and economically flexible, it does not consider crucial differences between different sources and sinks of #GHG #emissions." As a result, 𝐈𝐭 𝐩𝐫𝐨𝐩𝐨𝐬𝐞𝐬 𝐭𝐡𝐞 𝐟𝐨𝐥𝐥𝐨𝐰𝐢𝐧𝐠 𝐚𝐜𝐭𝐢𝐨𝐧𝐬: ⬇️
2/11
Contd...
1️⃣ "The Government should prioritise the development of long-lived geological and mineral #storage technologies.

2️⃣ Measures to restore CO2 released from #CarbonSinks should be reviewed and enhanced as appropriate."
3/11
Read 11 tweets
Apr 26
🚨𝐏𝐀𝐏𝐄𝐑🚨

"In order to assess carbon-biodiversity trade-off, the new paper examines the spatial relationships between biophysical & social values for #CarbonSequestration potential (measured as CO2 flux) & #biodiversity in Finland, using integrated valuation."

#NBS
🧵
1/6 Image
The approach used by authors "combines methods from #CarbonSequestration modelling, expert scoring approaches to biodiversity assessment and public participation geographic information systems (PPGIS)."
2/6 Image
Results indicate "strong spatial associations between biophysical assessment of #CO2 #flux and biodiversity priorities, and weaker associations between biophysical and social values."
3/6 ImageImage
Read 6 tweets

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