Diesel Exhaust Pollutants - Revision history

Eric: Added some more links throughout the page

2021-08-06T03:16:33Z

Added some more links throughout the page

← Older revision		Revision as of 03:16, 6 August 2021
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	*Typically used in Power Plants so not too relevant		*Typically used in Power Plants so not too relevant
	*Not requiring catalysts does comply with appropriate materials better, so this may be worth a look if this can be applied to lean engines/small burners		*Not requiring catalysts does comply with appropriate materials better, so this may be worth a look if this can be applied to lean engines/small burners

			==Existing Systems==
			*https://innovationdiscoveries.space/what-is-bluetec-clean-diesel-technology/
			*https://www.bosch-mobility-solutions.com/en/solutions/exhaust-gas-treatment/exhaust-gas-treatment-with-double-injection-technology/ (uses the near engine catalyst bed for emission reductions during [[Cold Starts]] )
			*https://www.bosch-mobility-solutions.com/en/mobility-topics/powertrain-and-electrified-mobility/diesel-powertrain/
			*https://www.energy.gov/sites/prod/files/2014/03/f9/2006_deer_godwin.pdf
			*https://mercedes-benz-jawor.com.pl/en/om-642-engine-with-bluetec-system/
			*https://web.archive.org/web/20070320084304/http://eng.volkswagen-media-services.com/medias_publish/ms/content/en/pressemitteilungen/2007/01/08/naias_detroit_2007.standard.gid-oeffentlichkeit.html

	=Internal Links=		=Internal Links=

Eric: Added an external link

2021-08-06T03:13:47Z

Added an external link

← Older revision		Revision as of 03:13, 6 August 2021
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	*These typically also include a [[NOx Absorber]] allowing it to run in a cyclical manner similar to that of a [[Three Way Catalytic Converter]]		*These typically also include a [[NOx Absorber]] allowing it to run in a cyclical manner similar to that of a [[Three Way Catalytic Converter]]
	*These utilize a reducing agent, typically [[Carbon Monoxide]] / Unburnt Hydrocarbons from a rich mixture to oxidize the NOx to Nitrogen and CO2		*These utilize a reducing agent, typically [[Carbon Monoxide]] / Unburnt Hydrocarbons from a rich mixture to oxidize the NOx to Nitrogen and CO2
			*[https://en.wikipedia.org/wiki/Catalytic_converter#Diesel_engines Wikipedia Page on Diesel Oxidation Catalysts]

	== [[Selective Catalytic Reduction]] ==		== [[Selective Catalytic Reduction]] ==

Eric: Added some more information

2021-08-06T02:31:34Z

Added some more information

← Older revision		Revision as of 02:31, 6 August 2021
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	*It is a workable solution, just needs better design (WITH user feedback), logistical fixes, and ease of use (that or use another system if this proves to be the more difficult option)		*It is a workable solution, just needs better design (WITH user feedback), logistical fixes, and ease of use (that or use another system if this proves to be the more difficult option)

	==Exhaust Gas Recirculation==		==Other==
			===Exhaust Gas Recirculation===
	*Does work, is commonplace, main issue is lower efficiency?		*Does work, is commonplace, main issue is lower efficiency?

			=== [[Selective Non-Catalytic Reduction]] ===
			*Similar concept to [[Selective Catalytic Reduction]] but uses the high temperatures of the combustion area rather than a lower temperature, but seperate catalyst bed
			*Typically used in Power Plants so not too relevant
			*Not requiring catalysts does comply with appropriate materials better, so this may be worth a look if this can be applied to lean engines/small burners

	=Internal Links=		=Internal Links=

Eric: Added some more links under the "External Links" section

2021-08-06T02:22:28Z

Added some more links under the "External Links" section

← Older revision		Revision as of 02:22, 6 August 2021
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	*[https://en.wikipedia.org/wiki/Diesel_exhaus The Wikipedia Page on Diesel Exhaust Pollutants]		*[https://en.wikipedia.org/wiki/Diesel_exhaus The Wikipedia Page on Diesel Exhaust Pollutants]
	*[https://en.wikipedia.org/wiki/Clean_Diesel_Technologies The Wikipedia Page on "Clean Diesel Technologies" ] (A group making emissions control systems for heavy duty and light duty diesel vehicles) (May make a page on this group later?)		*[https://en.wikipedia.org/wiki/Clean_Diesel_Technologies The Wikipedia Page on "Clean Diesel Technologies" ] (A group making emissions control systems for heavy duty and light duty diesel vehicles) (May make a page on this group later?)
			*[https://www.economist.com/graphic-detail/2016/01/13/why-diesel-cars-are-under-threat An Article by "The Economist" Titled "Why diesel cars are under threat" ]
	*[https://dieselnet.com/tech/cat_diesel.php On why three way converters are hard to use in diesel engines]		*[https://dieselnet.com/tech/cat_diesel.php On why three way converters are hard to use in diesel engines]
	*[https://www.edmunds.com/about/press/leaf-blowers-emissions-dirtier-than-high-performance-pick-up-trucks-says-edmunds-insidelinecom.html Moreso A Testament to the tech in said pickup truck, BUT "Leaf Blower's Emissions Dirtier than High-Performance Pick-Up Truck's, Says Edmunds' InsideLine . com" ]		*[https://www.edmunds.com/about/press/leaf-blowers-emissions-dirtier-than-high-performance-pick-up-trucks-says-edmunds-insidelinecom.html Moreso A Testament to the tech in said pickup truck, BUT "Leaf Blower's Emissions Dirtier than High-Performance Pick-Up Truck's, Says Edmunds' InsideLine . com" ]

	[[Category: Pollution]]		[[Category: Pollution]]

Eric: Fixed an internal link

2021-08-06T01:50:59Z

Fixed an internal link

← Older revision		Revision as of 01:50, 6 August 2021
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	*How they handle NOx emissions varies, but these mainly include:		*How they handle NOx emissions varies, but these mainly include:
	**[[Diesel Oxidation Catalysts]]		**[[Diesel Oxidation Catalysts]]
	**[[Selective Catalytic ~~Conversion~~]]		**[[Selective Catalytic Reduction]]
	***Which necessitates a continuous (albeit rather small) supply of [[Diesel Exhaust Fluid]]		***Which necessitates a continuous (albeit rather small) supply of [[Diesel Exhaust Fluid]]
	also tend to not work well with diesel engines due to the exhaust oxygen percentage		also tend to not work well with diesel engines due to the exhaust oxygen percentage
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	*These utilize a reducing agent, typically [[Carbon Monoxide]] / Unburnt Hydrocarbons from a rich mixture to oxidize the NOx to Nitrogen and CO2		*These utilize a reducing agent, typically [[Carbon Monoxide]] / Unburnt Hydrocarbons from a rich mixture to oxidize the NOx to Nitrogen and CO2

	== [[Selective Catalytic ~~Conversion~~]] ==		== [[Selective Catalytic Reduction]] ==
	*Essentially a [[Gas Scrubber]] but scaled down to car etc sized		*Essentially a [[Gas Scrubber]] but scaled down to car etc sized
	*Some SERIOUS logistical issues (no nearby places to buy the fluid, no "emergency" mode due to software locking etc)		*Some SERIOUS logistical issues (no nearby places to buy the fluid, no "emergency" mode due to software locking etc)

Eric: Added some more information

2021-08-06T01:40:25Z

Added some more information

← Older revision		Revision as of 01:40, 6 August 2021
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	=Solutions=		=Solutions=
	~~==Catalytic Converter==~~		*Unlike [[Spark Ignition Engines]] , [[Compression Ignition Engines]] run too lean to use standard [[Catalytic Converters]] (known as "Three Way Catalytic Converters")
	*~~Uses catalysts to convert Carbon Monoxide~~, ~~or uncombusted hydrocarbons into water and carbon dioxide~~		**This issue also exists for [[Lean Spark Ignition Engines]]
	**This is referred to as a "~~Two-way~~" ~~converter, although 3 way is mandatory in most places, and thus should be easier to find?~~		*Thus alternative Pollution Control Systems are needed
	**~~May be cheaper due to less catalysts?~~		*Both systems control [[Particulate Matter]] via a [[Diesel Particulate Filter]]
	*~~More recent ones add the additional capability on NOx emission conversion~~ via ~~the following reactions being catalyzed~~		*How they handle NOx emissions varies, but these mainly include:
	~~2 CO + 2 NO → 2 CO2 + N2~~		**[[Diesel Oxidation Catalysts]]
	~~hydrocarbon + NO → CO2 + H2O + N2~~		**[[Selective Catalytic Conversion]]
	~~2 H2 + 2 NO → 2 H2O + N2~~		***Which necessitates a continuous (albeit rather small) supply of [[Diesel Exhaust Fluid]]
	*~~This may have higher cost, and also must alternate between lean and rich to have the right amount~~ of ~~oxygen for each reaction~~		also tend to not work well with diesel engines due to the exhaust oxygen percentage
	*These also tend to not work well with diesel engines due to the exhaust oxygen percentage

	==~~DEF Based Scrubber~~==		== [[Diesel Oxidation Catalyst]] ==
			*These typically also include a [[NOx Absorber]] allowing it to run in a cyclical manner similar to that of a [[Three Way Catalytic Converter]]
			*These utilize a reducing agent, typically [[Carbon Monoxide]] / Unburnt Hydrocarbons from a rich mixture to oxidize the NOx to Nitrogen and CO2

			== [[Selective Catalytic Conversion]] ==
	*Essentially a [[Gas Scrubber]] but scaled down to car etc sized		*Essentially a [[Gas Scrubber]] but scaled down to car etc sized
	*Some SERIOUS logistical issues (no nearby places to buy the fluid, no "emergency" mode due to software locking etc)		*Some SERIOUS logistical issues (no nearby places to buy the fluid, no "emergency" mode due to software locking etc)

Eric: Minor Clarification

2021-08-06T01:32:08Z

Minor Clarification

← Older revision		Revision as of 01:32, 6 August 2021
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	=Basics=		=Basics=
	*This page lists the various directly harmful (ie not: nitrogen, oxygen, argon, co2) emissions from diesel engines (and many other ice's)		*This page lists the various directly harmful (ie not: nitrogen, oxygen, argon, co2) emissions from diesel engines (and many other ice's)
	*This is mainly as a lead in for [[Catalytic Converter]]s , [[Diesel Particulate Filter]]s, and [[Diesel Exhaust Fluid]] systems		*This is mainly as a lead in for [[Catalytic Converter]]s , [[Diesel Particulate Filter]]s, and [[Diesel Exhaust Fluid]] + [[Selective Catalytic Reduction]] systems
	*Isn't too much of a small scale issue, but with a highway full of cars etc, it builds up		*Isn't too much of a small scale issue, but with a highway full of cars etc, it builds up
	*IS FIXABLE, but there are many issues involving a [[Developer-User Disconnect Issues]] (may need better name) where it works on paper, but not i certain real life situations, or logistical issues of the supplies/maintenance needed, or hard to maintain systems etc		*IS FIXABLE, but there are many issues involving a [[Developer-User Disconnect Issues]] (may need better name) where it works on paper, but not i certain real life situations, or logistical issues of the supplies/maintenance needed, or hard to maintain systems etc

Eric: Fixed some typos

2021-08-06T01:31:27Z

Fixed some typos

← Older revision		Revision as of 01:31, 6 August 2021
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	=Basics=		=Basics=
	*This page lists the various directly harmful (ie not: nitrogen, oxygen, argon, co2) ~~emmissions~~ from diesel engines (and many other ice's)		*This page lists the various directly harmful (ie not: nitrogen, oxygen, argon, co2) emissions from diesel engines (and many other ice's)
	*This is mainly as a lead in for [[Catalytic Converter]]s , [[Diesel Particulate Filter]]s, and [[Diesel ~~Exaust~~ Fluid]] systems		*This is mainly as a lead in for [[Catalytic Converter]]s , [[Diesel Particulate Filter]]s, and [[Diesel Exhaust Fluid]] systems
	*Isn't too much of a small scale issue, but with a highway full of cars etc, it builds up		*Isn't too much of a small scale issue, but with a highway full of cars etc, it builds up
	*IS FIXABLE, but there are many issues involving a [[Developer-User Disconnect Issues]] (may need better name) where it works on paper, but not i certain real life situations, or logistical issues of the supplies/~~maitnence~~ needed, or hard to maintain systems etc		*IS FIXABLE, but there are many issues involving a [[Developer-User Disconnect Issues]] (may need better name) where it works on paper, but not i certain real life situations, or logistical issues of the supplies/maintenance needed, or hard to maintain systems etc

	=~~Emmissions~~=		=Emissions=
	==Nitrogen Oxides==		==Nitrogen Oxides==
	*[[Nitrogen Oxides]]		*[[Nitrogen Oxides]]
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	*Caused by nitrogen and un-combusted oxygen being heated in the combustion chamber and reacting to form nitrogen dioxide, tridoxide etc\		*Caused by nitrogen and un-combusted oxygen being heated in the combustion chamber and reacting to form nitrogen dioxide, tridoxide etc\
	*Main solution is [[Catalytic Converters]], although others can be implemented depending on the predicted amounts produced (a sort of balancing act for the others)		*Main solution is [[Catalytic Converters]], although others can be implemented depending on the predicted amounts produced (a sort of balancing act for the others)
	**The type of catalytic converter that does this "three way converter" doesn't work with high exhaust oxygen, as it would react with the ~~catalysy~~		**The type of catalytic converter that does this "three way converter" doesn't work with high exhaust oxygen, as it would react with the catalyst

	==Soot==		==Soot==
	*Caused by incomplete combustion due to too little oxygen		*Caused by incomplete combustion due to too little oxygen
	*Mainly [[Carbon Black]] , but due to the impure nature of the fuel, and the combustion ~~enviroment~~, it can often contain heavy metals, and other pollutants		*Mainly [[Carbon Black]] , but due to the impure nature of the fuel, and the combustion environment, it can often contain heavy metals, and other pollutants
	*Balancing act here is lower oxygen in the ratio means less "pre-treatment system" NOx but more soot etc		*Balancing act here is lower oxygen in the ratio means less "pre-treatment system" NOx but more soot etc
	*Thus either a perfect to lean fuel-oxygen ratio, or a [[Diesel Particulate Filter]] is needed		*Thus either a perfect to lean fuel-oxygen ratio, or a [[Diesel Particulate Filter]] is needed
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	=Solutions=		=Solutions=
	==~~Catlytic~~ Converter==		==Catalytic Converter==
	*Uses catalysts to convert Carbon Monoxide, or uncombusted hydrocarbons into water and carbon dioxide		*Uses catalysts to convert Carbon Monoxide, or uncombusted hydrocarbons into water and carbon dioxide
	**This is ~~reffered~~ to as a "Two-way" converter, although 3 way is mandatory in most places, and thus should be easier to find?		**This is referred to as a "Two-way" converter, although 3 way is mandatory in most places, and thus should be easier to find?
	**May be cheaper due to less catalysts?		**May be cheaper due to less catalysts?
	*More recent ones add the additional capability on NOx ~~emmission~~ conversion via the following reactions being ~~catalysed~~		*More recent ones add the additional capability on NOx emission conversion via the following reactions being catalyzed
	2 CO + 2 NO → 2 CO2 + N2		2 CO + 2 NO → 2 CO2 + N2
	hydrocarbon + NO → CO2 + H2O + N2		hydrocarbon + NO → CO2 + H2O + N2
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	==DEF Based Scrubber==		==DEF Based Scrubber==
	*Essentially a [[Gas Scrubber]] but scaled down to car etc sized		*Essentially a [[Gas Scrubber]] but scaled down to car etc sized
	*Some SERIOUS logistical issues (no nearby places to buy the fluid, no "emergency" mode due to ~~softwware~~ locking etc)		*Some SERIOUS logistical issues (no nearby places to buy the fluid, no "emergency" mode due to software locking etc)
	*Some design issues (design allowing for easy accidental mixing, little storage, no way of knowing if the fluid is "not expired" ie all the ~~amonia~~ has evaporated off)		*Some design issues (design allowing for easy accidental mixing, little storage, no way of knowing if the fluid is "not expired" ie all the ammonia has evaporated off)
	*If improperly managed can emit ~~ammoonia~~ gas (this is an issue of ~~managment~~ of the system however)		*If improperly managed can emit ammonia gas (this is an issue of management of the system however)
	*Educational Issues (people don't know what it does, think it's a gimmick, using expired fluid etc)		*Educational Issues (people don't know what it does, think it's a gimmick, using expired fluid etc)
	*It is a workable solution, just needs better design (WITH user feedback), logistical fixes, and ease of use (that or use another system if this proves to be the more difficult option)		*It is a workable solution, just needs better design (WITH user feedback), logistical fixes, and ease of use (that or use another system if this proves to be the more difficult option)

	==~~Exaust~~ Gas Recirculation==		==Exhaust Gas Recirculation==
	*Does work, is commonplace, main issue is lower efficiency?		*Does work, is commonplace, main issue is lower efficiency?

Eric: Added some more links under the "External Links" section

2021-03-26T23:25:13Z

Added some more links under the "External Links" section

← Older revision		Revision as of 23:25, 26 March 2021
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	=External Links=		=External Links=
	*[https://en.wikipedia.org/wiki/Diesel_exhaus The Wikipedia Page on Diesel Exhaust Pollutants]		*[https://en.wikipedia.org/wiki/Diesel_exhaus The Wikipedia Page on Diesel Exhaust Pollutants]
			*[https://en.wikipedia.org/wiki/Clean_Diesel_Technologies The Wikipedia Page on "Clean Diesel Technologies" ] (A group making emissions control systems for heavy duty and light duty diesel vehicles) (May make a page on this group later?)
	*[https://dieselnet.com/tech/cat_diesel.php On why three way converters are hard to use in diesel engines]		*[https://dieselnet.com/tech/cat_diesel.php On why three way converters are hard to use in diesel engines]
	*[https://www.edmunds.com/about/press/leaf-blowers-emissions-dirtier-than-high-performance-pick-up-trucks-says-edmunds-insidelinecom.html Moreso A Testament to the tech in said pickup truck, BUT "Leaf Blower's Emissions Dirtier than High-Performance Pick-Up Truck's, Says Edmunds' InsideLine . com" ]		*[https://www.edmunds.com/about/press/leaf-blowers-emissions-dirtier-than-high-performance-pick-up-trucks-says-edmunds-insidelinecom.html Moreso A Testament to the tech in said pickup truck, BUT "Leaf Blower's Emissions Dirtier than High-Performance Pick-Up Truck's, Says Edmunds' InsideLine . com" ]

	[[Category: Pollution]]		[[Category: Pollution]]

Eric: Added some more links under the "Internal Links" section

2021-03-17T00:14:47Z

Added some more links under the "Internal Links" section

← Older revision		Revision as of 00:14, 17 March 2021
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	=Internal Links=		=Internal Links=
			*[[Biodiesel]]
	*[[Diesel Engines]]		*[[Diesel Engines]]
	*[[Diesel Exhaust Fluid]]		*[[Diesel Exhaust Fluid]]