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D.C.

Peak Oil Cancelled

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The problem is sugar needs to be grown and therefore costs money. whilst diesel just comes out of the ground, when you have dug a big hole :) . The world can't produce enough food as it is so, though impressive, it's useless.

Agreed, useless and more expensive.

We're sliding down the slope of Peak Oil, it's happenened.

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You can run some diesels on vegitable oil anyhow?

Yes, going from plant oil -> diesel is probably a bit more effective than plant sugars-> sugar -> diesel, less steps. Both are pretty useless compared to algal biodiesel, if it ever works..

But as g75f said, first, find your sugar..

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Cuba had a deal with the old Soviet Union, sugar for oil. If they could now produce their own fuel it would be good for Cuba.

Actually, Cuba has some interesting deepwater prospects of it's own..

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Indeed, and Tesco Value vegetable oil is 50p a litre and legally taxfree. ;)

It is only tax free provided it is not put into a car; as soon as you tip it into the tank you should pay tax to the government in theory although how they would catch you if you didn't is anybodies guess.

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It is only tax free provided it is not put into a car; as soon as you tip it into the tank you should pay tax to the government in theory although how they would catch you if you didn't is anybodies guess.

Are they going to start dying cooking oil red ?

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It is only tax free provided it is not put into a car; as soon as you tip it into the tank you should pay tax to the government in theory although how they would catch you if you didn't is anybodies guess.

First 2500 litres or so is tax-free. That is equivalent to 25,000 miles for most cars.

Don’t see how they could find out if you used 2500 litres or 2600 litres though.

Wonder if any HGV rigs run on them? Each HGV could get through 50,000 litres a year.

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Indeed, and Tesco Value vegetable oil is 50p a litre and legally taxfree. ;)

Be very careful about putting that into a modern deisel though without some kind of pre-heating or mixing system. Or you will have a tank and injector system full of goop. Or at least start and warm up on Derv.

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Indeed, and Tesco Value vegetable oil is 50p a litre and legally taxfree. ;)

The cheapest vegetable oil I can see on mysupermarket.com is 98p per litre. When you consider that you get 15% less miles per gallon out of it than diesel, the fully taxed diesel outside in the forecourt is actually cheaper.

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Be very careful about putting that into a modern deisel though without some kind of pre-heating or mixing system. Or you will have a tank and injector system full of goop. Or at least start and warm up on Derv.

Top Gear did a couple of shows on growing their own vegetable oil (rapeseed?) and then used it in a diesel car for an endurance race. It destroyed the engine during the practice day and they had to replace most of the fuel system.

Vegetable oil looks like a really false economy unless you want to buy nearly dead diesels and change them every month.

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Agreed, useless and more expensive.

We're sliding down the slope of Peak Oil, it's happenened.

Amyris are already producing diesel from sugar cane at $50/barrel-oil equivalent on a test plant scale.

http://www.businessweek.com/magazine/conte..._special+report

Obviously it will take a few years to add on their facilities to existing ethanol plants and ramp up production, but QED the marginal price of oil is now $50/barrel.

There are a number of advantages of producing diesel from sugar cane rather than ethanol.

1. The oil separates from the water naturally so you don't need an energy intensive distillation stage.

2. You can use the existing distribution and storage facilities.

3. You can evade the tariffs that the US and EU charge on imported ethanol.

Peak fossil oil, most certainly.

Peak oil, no.

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Top Gear did a couple of shows on growing their own vegetable oil (rapeseed?) and then used it in a diesel car for an endurance race. It destroyed the engine during the practice day and they had to replace most of the fuel system.

Vegetable oil looks like a really false economy unless you want to buy nearly dead diesels and change them every month.

Channel Five's Fifth Gear put vegetable oil (SVO) in an old Merc without modification and chugged around London. For how long no one knows. But vegetable oil is a strong solvent so you have to ensure there are no rubber seals in the fuel system (and only older diesels use rubber seals). There isn't any point though as currently Derv is cheaper than SVO.

Some case studies here:

http://www.noendpress.com/caleb/biodiesel/index.php

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Indeed, and Tesco Value vegetable oil is 50p a litre and legally taxfree. ;)

Is it? Cheapest veg oil I've seen recently is over a quid.

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How much sugar would we have to grow for it to replace our oil consumption?

The UK currently consumes 1.82 Million bbl/day.

There are about 8 barrels to the tonne that means we consume about 82 Million tonnes of oil per year.

A sugar crop yields about 3 tons per acre per year.

That means we would need over 27 million arcres of land to grow the sugar on.

The area of the UK is uk is about 245,000 sq km.

There are about 247 acres per sql km

So we would need 109,000 sq km to grow sugar

That means that nearly half of the UK land area would have to be given up just to grow sugar to replace oil.

Where would we grow our food?

Edited by caparn

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