Carbon sequestration - Revision history

Apm: /* Related */ added link to Large scale carbon sequestration in deep sand dunes

2025-11-02T11:57:03Z

Related: added link to Large scale carbon sequestration in deep sand dunes

← Older revision		Revision as of 13:57, 2 November 2025
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	* [[Climate crisis]]		* [[Climate crisis]]
	* [[Stable carbon storage gemstones]]		* [[Stable carbon storage gemstones]]
			* [[Large scale carbon sequestration in deep sand dunes]]
	----		----
	Relevant for products beside pure storage: <br>		Relevant for products beside pure storage: <br>
	[[Mechanical metamaterial]] & [[Emulated elasticity]]		[[Mechanical metamaterial]] & [[Emulated elasticity]]

Apm: /* Silicon Si (& Titanium Ti) */ added link to yet unwritten page Large scale carbon sequestration in deep sand dunes

2025-11-02T10:00:51Z

Silicon Si (& Titanium Ti): added link to yet unwritten page Large scale carbon sequestration in deep sand dunes

← Older revision		Revision as of 12:00, 2 November 2025
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	{{todo\|Investigate energy efficiency comparisons.}}		{{todo\|Investigate energy efficiency comparisons.}}

	Overall perhaps the best possible carbon sequestration target ~~possible thus~~ <br>		Overall perhaps the best possible carbon sequestration target. <br>
	it'd be a primary target for APM-based carbon sequestration. <br>		Thus it'd be a primary target for APM-based carbon sequestration. <br>
	Construction blocks and blocks optimized for stable long term carbon storage. <br>		Construction blocks and blocks optimized for stable long term carbon storage. <br>
	{{todo\|Are there any other promising silicon based (single stoichometry) compounds that locking carbon away in a extremely long term stable fashion?}} <br>		{{todo\|Are there any other promising silicon based (single stoichometry) compounds that locking carbon away in a extremely long term stable fashion?}} <br>

			Related idea: [[Large scale carbon sequestration in deep sand dunes]]

	'''Titanium Ti:''' <br>		'''Titanium Ti:''' <br>

Apm: /* Related */ added link to yet unwritten page: stable carbon storage gemstones

2025-08-11T06:38:22Z

Related: added link to yet unwritten page: stable carbon storage gemstones

← Older revision		Revision as of 08:38, 11 August 2025
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	* [[Mechanosynthetic carbon dioxide splitting]]		* [[Mechanosynthetic carbon dioxide splitting]]
	* [[Climate crisis]]		* [[Climate crisis]]
			* [[Stable carbon storage gemstones]]
	----		----
	Relevant for products beside pure storage: <br>		Relevant for products beside pure storage: <br>
	[[Mechanical metamaterial]] & [[Emulated elasticity]]		[[Mechanical metamaterial]] & [[Emulated elasticity]]

Apm: added yet unwritten page * Climate crisis

2024-11-10T16:03:35Z

added yet unwritten page * Climate crisis

← Older revision		Revision as of 18:03, 10 November 2024
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	* [[Abundant elements]]		* [[Abundant elements]]
	* [[Mechanosynthetic carbon dioxide splitting]]		* [[Mechanosynthetic carbon dioxide splitting]]
			* [[Climate crisis]]
	----		----
	Relevant for products beside pure storage: <br>		Relevant for products beside pure storage: <br>
	[[Mechanical metamaterial]] & [[Emulated elasticity]]		[[Mechanical metamaterial]] & [[Emulated elasticity]]

Apm: /* Silicon Si (& Titanium Ti) */

2024-11-10T16:01:16Z

Silicon Si (& Titanium Ti)

← Older revision		Revision as of 18:01, 10 November 2024
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	* incombustible i.e. self-extinguishing		* incombustible i.e. self-extinguishing
	* current day production limitations (high temperature, poor carbon efficiency, 2/3 of carbon goes back to atmosphere right away)		* current day production limitations (high temperature, poor carbon efficiency, 2/3 of carbon goes back to atmosphere right away)
	* APM advantages (room temperature production~~, direct CO<sub>2</sub> use, atomic~~ efficiency)		* APM advantages (room temperature production & high efficiency)
	{{todo\|Investigate energy efficiency comparisons.}}		{{todo\|Investigate energy efficiency comparisons.}}

Apm: /* Silicon Si & Titanium Ti */

2024-11-10T15:59:43Z

Silicon Si & Titanium Ti

← Older revision		Revision as of 17:59, 10 November 2024
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	= Element pairings for carbon sequestration =		= Element pairings for carbon sequestration =

	== Silicon Si & Titanium Ti ==		== Silicon Si (& Titanium Ti) ==

	Sequestration in the form of silicon carbide (SiC)		Sequestration in the form of silicon carbide (SiC)

Apm: /* Economic viability - with gem based APM */

2024-11-10T15:58:08Z

Economic viability - with gem based APM

← Older revision		Revision as of 17:58, 10 November 2024
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	As a feedstock the silicon for silicon carbide might actually be the <br>		As a feedstock the silicon for silicon carbide might actually be the <br>
	harder part than carbon for SiC formation that sequestrates carbon. <br>		harder part than carbon for SiC formation that sequestrates carbon. <br>
	Procurement of silicon involves hard rock mining on the ground rather than ~~juts~~ sucking in ambient air. <br>		Procurement of silicon involves hard rock mining on the ground rather than just sucking in ambient air. <br>
	Still silicon is the most abundant element in the lithosphere (not counting oxygen). <br>		Still silicon is the most abundant element in the lithosphere (not counting oxygen). <br>
	It's usually readily accessible unless one is situated in a pure carbonate mountain range. <br>		It's usually readily accessible unless one is situated in a pure carbonate mountain range. <br>

Apm: /* Calcium Ca & Magnesium Mg (& Iron Fe) */ ti -> it

2024-11-10T15:57:50Z

Calcium Ca & Magnesium Mg (& Iron Fe): ti -> it

← Older revision		Revision as of 17:57, 10 November 2024
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	Ca & Mg are only dilute in concentration compared to Na (sodium). <br>		Ca & Mg are only dilute in concentration compared to Na (sodium). <br>
	Removal of Cl counter-ions would pose the problem of chlorine sequestration. <br>		Removal of Cl counter-ions would pose the problem of chlorine sequestration. <br>
	And there are no good elements other than (earth) alkali metals to pair ti with to make it harmless. <br>		And there are no good elements other than (earth) alkali metals to pair it with to make it harmless. <br>
	Thus extracting Ca & Mg it'd be better to balance it out with removal of other (more dilute) conter ions. <br>		Thus extracting Ca & Mg it'd be better to balance it out with removal of other (more dilute) conter ions. <br>
	I.e. extracting sulfates, phosphates, and nitrates. This may lead to depletion of them though.		I.e. extracting sulfates, phosphates, and nitrates. This may lead to depletion of them though.

Apm: ₂

2024-11-10T15:56:59Z

Apm at 15:54, 10 November 2024

2024-11-10T15:54:39Z

← Older revision		Revision as of 17:54, 10 November 2024
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	== Less suitable elements ==		== Less suitable elements ==

			These elements, while abundant, face limitations for carbon sequestration.

	=== Sodium Na & Potassium K ===		=== Sodium Na & Potassium K ===

← Older revision		Revision as of 17:56, 10 November 2024
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	* incombustible i.e. self-extinguishing		* incombustible i.e. self-extinguishing
	* current day production limitations (high temperature, poor carbon efficiency, 2/3 of carbon goes back to atmosphere right away)		* current day production limitations (high temperature, poor carbon efficiency, 2/3 of carbon goes back to atmosphere right away)
	* APM advantages (room temperature production, direct ~~CO2~~ use, atomic efficiency)		* APM advantages (room temperature production, direct CO<sub>2</sub> use, atomic efficiency)
	{{todo\|Investigate energy efficiency comparisons.}}		{{todo\|Investigate energy efficiency comparisons.}}

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	== Calcium Ca & Magnesium Mg (& Iron Fe) ==		== Calcium Ca & Magnesium Mg (& Iron Fe) ==

	* Carbonate formation (~~CaCO3~~, ~~MgCO3~~) <br>		* Carbonate formation (CaCO<sub>3</sub>, MgCO<sub>3</sub>) <br>
	* Moderate water solubility somewhat limits long-term stability. <br>		* Moderate water solubility somewhat limits long-term stability. <br>
	* Abundance patterns (~~CaCO3~~ more common than ~~MgCO3~~). <br>		* Abundance patterns (CaCO<sub>3</sub> more common than MgCO<sub>3</sub>). <br>

	'''Some considerations for the case that these elements are sourced from sea water:''' <br>		'''Some considerations for the case that these elements are sourced from sea water:''' <br>
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	Thus extracting Ca & Mg it'd be better to balance it out with removal of other (more dilute) conter ions. <br>		Thus extracting Ca & Mg it'd be better to balance it out with removal of other (more dilute) conter ions. <br>
	I.e. extracting sulfates, phosphates, and nitrates. This may lead to depletion of them though.		I.e. extracting sulfates, phosphates, and nitrates. This may lead to depletion of them though.
	While initial beneficial in nutrient-excess zones there may emerge nutrient depletion at full ~~CO2~~ removal to pre-indurstial levels scale.		While initial beneficial in nutrient-excess zones there may emerge nutrient depletion at full CO<sub>2</sub> removal to pre-indurstial levels scale.
	Depletion of the Ca & Mg itself may also be problematic for sea life that depends on it for shell formation.		Depletion of the Ca & Mg itself may also be problematic for sea life that depends on it for shell formation.

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	These compounds can server as biodegradable structural materials of mid strength, <br>		These compounds can server as biodegradable structural materials of mid strength, <br>
	though degradation re-releases the ~~CO2~~ so in the context of carbon sequestration (as is the focus here) <br>		though degradation re-releases the CO<sub>2</sub> so in the context of carbon sequestration (as is the focus here) <br>
	this would defeat the purpose. <br>		this would defeat the purpose. <br>

	'''Iron Fe:'''		'''Iron Fe:'''
	* Iron carbonate (~~FeCO3~~) <br>		* Iron carbonate (FeCO<sub>3</sub>) <br>
	* Limited natural abundance despite iron availability <br>		* Limited natural abundance despite iron availability <br>
	* Solubility issues limit long-term stability <br>		* Solubility issues limit long-term stability <br>
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	Li, Be, B are non-volatile but all lack abundance. Li salts are highly water soluble/reactive too. <br>		Li, Be, B are non-volatile but all lack abundance. Li salts are highly water soluble/reactive too. <br>
	P, S are not too abundant and combinations form some [[oddball compounds]]. CS<sub>2</sub> is a liquid e.g. <br>		P, S are not too abundant and combinations form some [[oddball compounds]]. CS<sub>2</sub> is a liquid e.g. <br>
	Of the transition metals of their first period only Fe & Ti have decent abundance compared to the ~~CO2~~ problem. <br>		Of the transition metals of their first period only Fe & Ti have decent abundance compared to the CO<sub>2</sub> problem. <br>
	With higher periods abundance only goes further downhill. <br>		With higher periods abundance only goes further downhill. <br>