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The rebreather article contains a lot of text which could perhaps be moved here and linked instead. Rexparry sydney 04:54, 6 August 2007 (UTC) reply

Does anyone know if elemental Carbon can be extracted through further processing from exiting CO2 scrubber technology? If so, what level of purity can be achieved? —Preceding unsigned comment added by 216.209.35.163 ( talk) 17:02, 21 November 2007 (UTC) reply

any level of purity can be achieved, but it's a highly inefficient and energy intensive process (since you're adding all the energy you got from burning it, back in... and no process is 100% efficiënt, so you'd be better off storing the co2 and buying coal... or you can sell the pure, compressed co2 for carbonating drinks or freezing it and selling dry ice (as a fire extinguisher or as a block) Tab active pro ( talk) 20:34, 16 September 2022 (UTC) reply

The algae based scrubbers are not explained. Several other sections need expansion too. B. Srinivasa Sasidhar 10:06, 3 October 2012 (UTC) — Preceding unsigned comment added by Bssasidhar ( talk • contribs)

Neither is AgO (silver oxide). All metal oxides form their carbonate in >25% humidity (but if I look up Fe2CO3, I actually get Fe2(CO3)(OH)2 instead). Then it is heated to release the CO2. It is used on the international space station. src: http://www.saltlakemetals.com/Silver_Oxide.htm Charlieb000 ( talk) 08:56, 3 July 2013 (UTC) reply

if memory serves, the oh2 version you found ks

if memory serves, the oh2 version you found is the version you get from mixing a (this) salt with water

(fe is iron(metal), the rest are non metals, any molecule made from both metal and non metals is a salt) Tab active pro ( talk) 20:29, 16 September 2022 (UTC) reply

What is Binding? do you mean to say "bonding"? — Preceding unsigned comment added by 67.52.39.82 ( talk) 20:06, 3 November 2013 (UTC) reply

I would like to see a cite for the claimed use of lithium peroxide on Apollo. I'm pretty familiar with Apollo technology and I have never seen lithium peroxide mentioned, only lithium hydroxide. LiOH was used in the Command Module, the Lunar Module and in the Portable Life Support System (PLSS). That pretty much covers everything. Karn ( talk) 07:43, 15 December 2014 (UTC) reply

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I'm planning to start a new section under the "Technologies" headline. The objective is to gather information on how MOFs are used to separate carbon dioxide (how the process work, CO2 adsorption, economic analysis, kinetics of the process, etc). Gustavocaride ( talk) 00:51, 21 April 2016 (UTC) reply

@ Gustavocaride:. We look forward to your edits. A comment and a suggestion:

• comment: there are NO commercial technologies using MOF's to separate CO2, or anything else for that matter. Maybe one of these years there will be, but presently none have been commercialized. So be cautious with the academics who claim "applications." It is early days.
• suggestion: please rely on this guideline WP:SECONDARY - use reviews and books for all of your references. Please.-- Smokefoot ( talk) 02:06, 21 April 2016 (UTC) reply

"An alternative to this thermo-chemical process is an electrical one in which a nominal voltage is applied across the carbonate solution to release the CO2" Is there a source for this? Skyeyu ( talk) 04:22, 24 October 2017 (UTC) reply

No idea, it sounds plausible, butI have tagged it as citation needed, which you can do whenever there is reasonable doubt. Let us know if you find a source. · · · Peter (Southwood) ^(talk): 18:17, 24 October 2017 (UTC) reply

i translated it from word salad to... i hope comprehensible English, hope that satisfies Tab active pro ( talk) 20:22, 16 September 2022 (UTC) reply

The following sentence is impossible for me to understand:

"Early incarnations of air capture used electricity as the energy source; hence, were dependent on a carbon-free source."

Apart from being a run-on sentence, I simply cannot get my head around what the carbon-free part has to do with electricity. Electricity is not directly related to carbon in any way that I know of. So what does this "sentence" mean? Very frustrating to try and read something 10 times and get nothing but a headache from it. 98.194.39.86 ( talk) 19:46, 6 January 2018 (UTC) reply

i hope my change makes it comprehensible...

ps. honestly? i can't understand why schools teach useless subjects, but communication? nah just gotta intuite that stuff. Tab active pro ( talk) 20:20, 16 September 2022 (UTC) reply

I'm in the process of removing excessive detail from the Carbon capture and storage article. There are some technical details on scrubbing that could be relevant to Carbon dioxide scrubber but I'm not sure so I'm suggesting them here rather than adding the content myself. If you add any of this to the article, please indicate in the edit summary that it was copied from Carbon capture and storage to comply with licensing requirements:

• Monoethanolamine (MEA) solutions, the leading amine for capturing CO₂ , have a heat capacity between 3–4 J/g K since they are mostly water. ^{[1] [2]} Higher heat capacities add to the energy penalty in the solvent regeneration step.
• An alternate method is chemical looping combustion (CLC). Looping uses a metal oxide as a solid oxygen carrier. Metal oxide particles react with a solid, liquid or gaseous fuel in a fluidized bed combustor, producing solid metal particles and a mixture of CO₂ and water vapor. The water vapor is condensed, leaving pure CO₂ , which can then be sequestered. The solid metal particles are circulated to another fluidized bed where they react with air, producing heat and regenerating metal oxide particles for return to the combustor. A variant of chemical looping is calcium looping, which uses the alternating carbonation and then calcination of a calcium oxide based carrier. ^[3]
• Under significant study is also adsorption based carbon capture on highly porous materials such as activated carbons, zeolites, or MOFs. Such a process is divided into physical and chemical adsorption or physisorption and chemisorption respectively. The former mitigates the issue of CO₂ regeneration as most of the CO₂ can be regenerated by simply decreasing the pressure. Physisorption capacity is principally determined by the porosity of the adsorbate. ^{[4] [5]}
• In sorption enhanced water gas shift (SEWGS) technology a pre-combustion carbon capture process, based on solid adsorption, is combined with the water gas shift reaction (WGS) in order to produce a high pressure hydrogen stream. ^[6] The CO₂ stream produced can be stored or used for other industrial processes. ^[7]

Clayoquot ( talk | contribs) 23:54, 19 July 2024 (UTC) @ Clayoquot:. These refs seem specialized. I dont think that they merit inclusion into this article. -- Smokefoot ( talk) 18:54, 20 July 2024 (UTC) reply

That makes sense. Thanks for looking into this. Clayoquot ( talk | contribs) 22:38, 20 July 2024 (UTC) reply