User:Genetics4good/Comparison of alternative ICE fuels

This article compares the alternative fuels currently available for use in internal combustion engines, after conversion. Specific focus has been put on home production of the fuel and the amount of emissions.

ICE fuel	Greenhouse Gas Emissions	Energy output/m³	Fabrication requirements	Difficulty to convert IC-engine to this fuel	Storability	Toxicity	Remarks
Compressed air	Emissionless	?W/m³	no land required, only air and accessibility of energy needed	easy, only possible with certain IC engines such as quasiturbine. Other engines can (supposedly) not be converted	long storability	not toxic	Compressed air works more or less as a energy storage, meaning that you need a fair amount of power first to convert to compressed air. Best option if you have a quasiturbine-engine
Pure Hydrogen	Water	?W/m³	no land required, accessibility of water and electricity (in higher quantities than what is obtained in hydrogen) required. No electricity required if produced by microorganisms.	intermediate, depends on whether DIY or by kit	short storability; needs to be stored under pressure in tanks to increase gas amounts and thus energy output. This can be done by either carbon nanotube tanks or keratine-based tanks.	not toxic	none
Oxyhydrogen	Water	?W/m³	no land required, accessibility of water and electricity required. No electricity required if produced by microorganisms.	intermediate, depends on whether DIY or by kit	?	not toxic	none
Liquid nitrogen	Emissionless	?W/m³	no land required, accessibility of water and electricity required. No electricity required if produced by microorganisms.	intermediate, depends on whether DIY or by kit	?	not toxic	none
Water	Emissionless	?W/m³	no land required, accessibility of water and energy needed	intermediate, depends on whether DIY or by kit	?	not toxic	no official documents, could still be a hoax
Hydrogen peroxide	Emissionless	?W/m³	no land required, accessibility of water and energy needed	intermediate to hard, depends on whether DIY or by kit	?	very toxic, make sure to eliminate potential skin contact	hydrogen peroxide may also be mixed with ethanol (ratio 68%-32%)
Hydrogen or oxyhydrogen-fossil fuel mixture	Yes. ?co²	?W/m³	fossil fuels not producible at home, accessibility of water and energy needed	easy, by DIY method or by kit	relative long storage of fissil fuels (several months), hydrogen/oxyhydrogen is made just before use	toxic	Dough ICE conversion is easy and relatively cheap to do, the use of the fossil fuels still makes mixture non-self producible and still polluting. Therefore a full hydrogen/oxyhydrogen is always preferred.
Ethanol, Biomethanol and Butanol fuel	Yes. ?co²	?W/m³	arable land required, planted with trees for fruit or wood (depending on whether its used to produce ethanol or methanol/butanol	intermediate to hard, depends on whether DIY or by kit	?	dough ethanol is safe, methanol is very toxic, avoid inhalation, skin contact, ...	aldough ICE conversion is very easy, much work to produce base fuel itself. Perhaps usable for eco-projects as trees may clear area of possible pollution and as emissions may be directed underground with stationary engines using Carbon capture and storage. Besides using trees, other crops as straw can also be used and converted using elephants yeast.
Gases as Syngas, Compressed natural gas (CNG) and HCNG	Yes. ?co²	?W/m³	access to gas supplies required	intermediate to hard, can be outsourced to professional	?	?	access to gas reserves are mostly not available, not worth the conversion due to still fair amounts of pollution
Vegetable oils as Jatropha	Yes. ?co²	?W/m³	arable land required, planted with trees for wood	intermediate, somewhat harder than ethanol/methanol, ... as the engine needs to be preheated and is best a diesel	?	not toxic	much work to produce base fuel itself. Perhaps usable for eco-projects as trees may clear area of possible pollution and as emissions may be directed underground with stationary engines using Carbon capture and storage. Also usable for project combating desertification as japtropha can thrive in sandy/arid environments and as the emissions may again be directed underground (see above)
Algae fuel (can be converted to biodiesel and vegetable oil)	Yes. ?co²	?W/m³	access to gas supplies required	intermediate, somewhat harder than ethanol/methanol, ... as the engine needs to be preheated and is best a diesel	?	?	probably much work to produce base fuel itself. Perhaps usable for eco-projects as algae may clear a seawater area of possible pollution and as emissions may be directed underground with stationary engines using Carbon capture and storage.

See also

• ICE fuel conversion
• Comparison of automobile fuel technologies

[[Category:Alternative propulsion]] [[Category:Green vehicles]] [[Category:Vehicle modification| ]]