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Old 22nd April 2015, 16:44   #1
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Default Introducing synthetic "e-diesel" by Audi!

The German auto giant has announced that it has successfully produced it's first batch of "e-diesel", a synthetic form of diesel which is made using CO2. This synthetic form of diesel is more crucial in terms of environment protection and also provides optimum use of resources.

Introducing synthetic "e-diesel" by Audi!-audiediesel1.jpg

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Concocted at the German manufacturer’s research facility in Dresden, the only raw materials needed for producing e-diesel are water and carbon dioxide. To demonstrate its suitability for everyday use, German Federal Minister of Education and Research Prof. Dr. Johanna Wanka put the first five liters into her official car (above), an Audi A8 3.0 TDI clean diesel quattro, this Tuesday.

This synthetic fuel is free from sulfur and aromatic hydrocarbons, and its high cetane number means it is readily ignitable. As lab tests conducted at Audi have shown, it is suitable for admixing with fossil diesel or, prospectively, for use as a fuel in its own right.

The Dresden plant is set to produce over 3,000 liters of Audi e‑diesel over the coming months.

Introducing synthetic "e-diesel" by Audi!-audiediesel2.jpg

Full Details - Motoroids

Last edited by RavenAvi : 22nd April 2015 at 16:45.
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Old 25th April 2015, 17:51   #2
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Default Re: Introducing synthetic "e-diesel" by Audi!

Wow, this sounds almost too good to be true.

What's the fine print?

How expensive is it to manufacture / any idea what the production constraints are?
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Old 25th April 2015, 20:38   #3
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Default Re: Introducing synthetic "e-diesel" by Audi!

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Originally Posted by Rehaan View Post
Wow, this sounds almost too good to be true.

What's the fine print?

How expensive is it to manufacture / any idea what the production constraints are?
The Dresden plant is set to produce over 3,000 liters of Audi e‑diesel over the coming months. is our clue. It must take copious amounts of electricity to get Hydrogen, then further copious amounts of electricity to refine the "Blue crude" to get the diesel equivalent. Unless very clean sources of energy are used, it will be overall equally polluting.
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Old 27th April 2015, 19:31   #4
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Default Re: Introducing synthetic "e-diesel" by Audi!

An interesting discussion regarding this on reddit : link

Here's a cherry-picked post or two:
"This synthesis of fuel is called the Fischer-Tropsch process and it's been known since 1925.
Audi did not invent it. It's been used before by the countries that could not procure enough fuel by other means (i.e., Nazi Germany during WWII).

Also, it's quite energy inefficient, meaning that you will spend way more energy than you'll be able to recover when you burn the fuel. The fuel you make will be much more expensive than producing fuel from oil."

--------------

"Exactly. I worked for a company that was based on the Fischer-Tropsch process 15 years ago. At the time I started with the company I was convinced that this was the future. It was my 2nd job out of university, so I was a bit young and easily swayed. I can say that there is a remarkable impression on everyone when they first see (and smell) the finalized FT product side by side with some traditional diesel fuel. For these reasons we were able to obtain ~10 million USD in funding, which lasted us a whopping 2 years.

After 2 years of working on the FT process my initial impressions were dead. Since that time I've followed every company that remains involved in the process (mainly because I purchased stock in every one), and other than Sasol and the Shell plant in malaysia, they are all dead or dying. Still, about once per year you see a new announcement how people have discovered a new sustainable path for fuel production, and there is a ~100% likelyness that the press release will have a jar containing ~100 mL of clear liquid (exactly like the one in Audi's web page). Realistically, the costs associated with the fabrication of a new plant to produce a usable product on the scale of traditional refineries are simply too high: it is much more cost effective to throw money at other projects.

EDIT: I no longer purchase these stocks, that was a mistake. I bought all of my stock in the years 2000-2002, a significant portion being in Syntroleum and Rentek."

Last edited by Rehaan : 27th April 2015 at 19:36.
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