Biofuel

In a limited way, yes. Old habits are hard to change so Coal, Oil, Nuclear are still being used.

it depends

Kerosene does 'spoil' because bacteria will begin to break it down. Water speeds up the digestion. The process produces a plaque that will clog jets in an injector system and will produce acids that will corrode metal components in the heater. If you have large quantities of old kerosene, you can rescue it by filtering it to remove the bacterial plaque. For small quantities, it isn't worth the hassle--use it to burn out stumps. See the link for Sta-Bil, a product that can stabilize fuel.

Bio diesel is a bio fuel.

A bio fuel is a fuel made from a renewable biomass source, usually from some kind of vegetation.

The main problem with biofuel is trying to make it economically viable. Most of the current methods are simply too expensive, but that will probably change with more research and as petroleum fuel prices continue to rise.

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The above answer is incorrect, the main problem is how to get enough arable land to farm biofuel crops at the first place to provide enough energy for everyone. While the Earth's population is rising at a rapid rate, we are using up food for energy, need more land to build houses and infrastructure. Remember not every land is arable, many of the old arable land like in Africa are unusable because of the salt content. As more soil erosion takes place, less land is arable. Also bio-diversity, monoculture, etc all associated to food chain and the biosphere. This is why there is the seed bank in the North Pole to conserve diversity when a species of plants (crop) extinct.

Greener?

Burning biofuel is much cleaner than gasoline to the environment. Also reduces greenhouse gases.

Why is it not widely use?

Not enough food to produce enough fuel to replace gasoline. Hence it is only mixed with gasoline. Not many cars today manufactured to run on pure ethanol or bio-diesel.

More expensive?

No. Ethanol and bio-diesel are bio-fuel, that you see in gas station are cheaper than regular gasoline.

Burning forest residue and algae to make bio-fuel.

Yes this is being researched and have been tested on airplanes, however not mature yet.

bio-luminescence is light produced by a living organism, such as a firefly

Any kind of vegetation, including trees, can be burned as biomass. The heat is then used, in the same way as burning coal or oil, to produce steam to spin electricity turbines.

Renewable energy sources use various non petroleum, non wood, non peat, non nuclear sources for fuel energy, typically to produce electricity. Petroleum, wood, peat, and nuclear energy are non renewable sources because they can be depleted faster than they can be replaced. The main way these energy sources are alike is they are all used to produce electricity.

it is more expensive

Biomass is material that has grown in fairly recent times, as distinct from fossil fuels that were formed millions of years ago. The word was coined I think to make this clear. The theory is that during the growth of this material it absorbed CO2 , therefore the CO2 evolved when it is burned does not on balance add to the atmospheric burden

it does not affect the economy

The use of Biofuels helps agriculture by opening new markets for existing crops and introducing new uses for what has in the past been considered to be waste.

Biofuel technology also allows the farmer to produce their energy needs on-farm. Someone with a dairy or piggery may set up a digester where animal manure is broken down by bacteria and a gas is produced. This gas is captured and used to create electricty that can, inturn, power the piggery. Excess energy may then be sold onto the grid providing a cash return to the farmer.

It's an attempt at using crops as a fuel source in order to reduce our dependency on fossil fuels as a source of energy. However, sadly it also increases the competition for these same crops as food sources for human consumption.

For most people, biofuel is worth using if it is cheaper than normal fuels (gas, coal, electricity, etc.) currently being used - to keep household costs down. Anyone very concerned with the environment may be prepared to pay extra on principle.

Biofuels are renewable, we can get more of them. Petrol will eventually run out.

Vegetable Oil is used to make biodiesel, and corn is used to make ethanol for a gasoline substitute.

Biofuels help us like pandas sit on stuff and do parkour.

about 37 liters

based on 9.83(estimates vary) gal/barrel (42gal) of distillate fuel oil (home heating and diesel)

liquid bio fuel is the fuel which comes frm vegetables, animals and other organic materials.

these fuels dont harm the environment as they are eco friendly. they produce 100% less sulphur dioxide than the normal petroleum fuels. moreover, they dont deplete the ozone layer.

Yes. However, there are some cautions that should be followed.

If you are mixing pure biodiesel (B100) with traditional petroleum diesel then you should be aware of any limits placed on the final mix ratio by the engine or heating plant being used. For instance, many engine manufacturers recommend the final mix be no more than B20. Some others certify their engines for only as much as B05; others up to B30.
Know your limits! The primary reason for these limits is that the "bio" portion of biodiesel can break down rubber seals over time. You may be able to get around these limitations many times by replacing the rubber seals for synthetic. For instance, the SunTech fuel pumps used in many furnaces have synthetic replacement seals readily available. Be aware that biodiesel has a cleansing effect on most tanks. It dissolves the sludge buildup found in the bottom of some older tanks. This sudden release of sludge from the tank can clog fuel filters. Therefore, it is best to introduce biodiesel slowly to an older tank. If your goal is to reach a B20 mix then start with a B05 and slowly build up to a B20 over several fills of the tank. Be aware that the temperature of the two fuels being mixed is important! It is not advisable to add small amounts of B100 that are at 55 degrees (F) with large amonts of cold petroleum diesel that has been stored outside in winter at 10 degrees (F). This will cause the B100 to congeal almost instantly. If the temperatures of the two fuels are relatively warm 50 degrees (F) and higher they will mix quite well in whatever ratio can be tolerated by your engine or heating plant.

boifule, i would say is quite efficient, instead of burning fossil fuels it is more efficient and it means you wont be paying high prices for something that will, eventually run out.

Biodiesel fuel can be made out of many organic compounds. Vegetable oil and corn oil are two things that can be used.

I bought a 150L biodiesel kit from SCINTEX biofuels a few months back. www.scintex.com.au It was the cheapest in Oz at the time. The quality is great and havent had any troubles as yet. Pretty sure they have filter housings and drywash as well. Out.