Audi Has Made Diesel From Water And Carbon Dioxide

[jaded]

https://www.audi-mediaservices.com/p...he_future.html

Ingolstadt/Berlin, 2015-04-21

Fuel of the future: Research facility in Dresden produces first batch of Audi e-diesel

The verdict: Pilot plant produces high-quality diesel fuel
No need for mineral oil: e-diesel made from water, CO2 and green power
Minister Wanka: “Synthetic diesel using CO2 is a huge success”

Audi has taken another big step in the development of new, CO2 neutral fuels: A pilot plant in Dresden has started production of the synthetic fuel Audi e diesel.

After a commissioning phase of just four months, the research facility in Dresden started producing its first batches of high quality diesel fuel a few days ago. To demonstrate its suitability for everyday use, Federal Minister of Education and Research Prof. Dr. Johanna Wanka put the first five liters into her official car, an Audi A8 3.0 TDI clean diesel quattro*, this Tuesday. “This synthetic diesel, made using CO2, is a huge success for our sustainability research. If we can make widespread use of CO2 as a raw material, we will make a crucial contribution to climate protection and the efficient use of resources, and put the fundamentals of the “green economy” in place,” declared Wanka.

The Dresden energy technology corporation sunfire is Audi’s project partner and the plant operator. It operates according to the power liquid (PtL) principle and uses green power to produce a liquid fuel. The only raw materials needed are water and carbon dioxide. The CO2 used is currently supplied by a biogas facility. In addition, initially a portion of the CO2 needed is extracted from the ambient air by means of direct air capturing, a technology of Audi’s Zurich based partner Climeworks.

Reiner Mangold, Head of Sustainable Product Development at Audi, sees Audi e diesel and Audi e fuels in general as an important component that complements electric mobility: “In developing Audi e-diesel we are promoting another fuel based on CO2 that will allow long distance mobility with virtually no impact on the climate. Using CO2 as a raw material represents an opportunity not just for the automotive industry in Germany, but also to transfer the principle to other sectors and countries.”

Production of Audi e diesel involves various steps: First, water heated up to form steam is broken down into hydrogen and oxygen by means of high-temperature electrolysis. This process, involving a temperature in excess of 800 degrees Celsius, is more efficient than conventional techniques because of heat recovery, for example. Another special feature of high-temperature electrolysis is that it can be used dynamically, to stabilize the grid when production of green power peaks.

In two further steps, the hydrogen reacts with the CO2 in synthesis reactors, again under pressure and at high temperature. The reaction product is a liquid made from long chain hydrocarbon compounds, known as blue crude. The efficiency of the overall process – from renewable power to liquid hydrocarbon – is very high at around 70 percent. Similarly to a fossil crude oil, blue crude can be refined to yield the end product Audi e diesel. 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 Federal Ministry of Education and Research is supporting the sunfire project, which started in May 2012. Construction work on the facility in Dresden Reick kicked off in July 2013 and the plant was commissioned on November 14, 2014. The plant is set to produce over 3,000 liters (792.5 US gal) of Audi e diesel over the coming months. Audi is sunfire’s exclusive partner in the automotive sector.

Over and above the partnership with sunfire, Audi has been active in the development of CO2 neutral fuels – Audi e***8209;fuels – since 2009. The Audi e gas plant in Werlte, Lower Saxony, already produces Audi e gas (synthetic methane) in a comparable manner; drivers of the Audi A3 Sportback g tron* can fill up on it using a special fuel card. Audi is also conducting joint research into the synthetic manufacture of Audi e gasoline with Global Bioenergies, of France. In a further project, Audi has joined forces with the U.S. company Joule, which uses microorganisms to produce the synthetic fuels Audi e diesel and Audi e ethanol.

Fuel consumption of the models named above:

Audi A8:
Combined fuel consumption in l/100 km: 5.9 (39.9 US mpg)**;
Combined CO2 emissions in g/km: 155 (249.4 g/mi)**

Audi A3 Sportback g-tron:
CNG consumption in kg/100 kilometers: 3.3 – 3.2 (71.3 – 73.5 US mpg)**;
Combined fuel consumption in l/100 km: 5.2 – 5.0 (45.2 – 47.0 US mpg)**;
Combined CO2 emissions in g/km (CNG): 92 – 88 (148.1 – 141.6 g/mi)**;
Combined CO2 emissions in g/km (gasoline): 120 – 115 (193.1 – 185.1 g/mi)**

**The fuel consumption and the CO2 emissions of a vehicle vary due to the choice of wheels and tires. They not only depend on the efficient utilization of the fuel by the vehicle, but are also influenced by driving behavior and other non-technical factors.

[squealpiggy]

It'll be expensive but it will get cheaper. Crude will trend to be more expensive. At some point it will be cheaper to manufacture synthetic fuels than to dig it up.

We still need to work on proper solar power stations but this is a good step on the road to sustainable energy.

[MDPopescu]

https://www.audi-mediaservices.com/p...he_future.html

Ingolstadt/Berlin, 2015-04-21

Fuel of the future: Research facility in Dresden produces first batch of Audi e-diesel

The verdict: Pilot plant produces high-quality diesel fuel
No need for mineral oil: e-diesel made from water, CO2 and green power
Minister Wanka: “Synthetic diesel using CO2 is a huge success”

In cases like this one, you should carefully look at the "producing process"...

The article reads that: "First, water heated up to form steam is broken down into hydrogen and oxygen by means of high-temperature electrolysis. This process, involving a temperature in excess of 800 degrees Celsius, is more efficient than conventional techniques because of heat recovery, for example. Another special feature of high-temperature electrolysis is that it can be used dynamically, to stabilize the grid when production of green power peaks.

In two further steps, the hydrogen reacts with the CO2 in synthesis reactors, again under pressure and at high temperature.

Now: you should find out exactly what (and in which amounts) fuel is used in order to produce those temperature and pressure needed for the reactions specified above... (Usually, people find out that the fuel needed exceeds in pollution effects the "old fuels")... I hope this is not the case here...

[shinobi108]

It'll be expensive but it will get cheaper. Crude will trend to be more expensive. At some point it will be cheaper to manufacture synthetic fuels than to dig it up.

We still need to work on proper solar power stations but this is a good step on the road to sustainable energy.

Funny of all the trillionaire economy g20 countries of the world, bloody 3rd world Ethiopia is leading the charge of the world in the global energy market, something like 20% of Ethiopia is charged by solar energy. Theres even a huge water dam project(biggest of its kind in history) developed purely to use solar energy.

[Furn]

You still need energy to reverse the reaction.

Hydrocarbons plus oxygen gives of carbon dioxide and water plus energy.

The energy required to make the new bonds in CO2 and H2O is less than the energy in the hydrocarbon bonds so you get an energy output.

To reserve the reaction you need to input energy to create the new bonds.

So you still have the problem of where to get the energy to make this fuel from. Not much point making fuel from CO2 and water if your burning coal to do it.

[jaded]

You still need energy to reverse the reaction.

Hydrocarbons plus oxygen gives of carbon dioxide and water plus energy.

The energy required to make the new bonds in CO2 and H2O is less than the energy in the hydrocarbon bonds so you get an energy output.

To reserve the reaction you need to input energy to create the new bonds.

So you still have the problem of where to get the energy to make this fuel from. Not much point making fuel from CO2 and water if your burning coal to do it.

Nowhere is the use of coal mentioned...that would hardly make it a green project as it is refereed to as being.

from another article...

The first step in the process involves harnessing renewable energy through solar, wind or hydropower. This energy is then used to heat water to temperatures in excess of 800oC (1472oF). The steam is then broken down into oxygen and hydrogen through high temperature electrolysis, a process where an electric current is passed through a solution.

http://www.iflscience.com/chemistry/...carbon-dioxide

Also...look at the fuel consumption...

Audi A3 Sportback g-tron:
CNG consumption in kg/100 kilometers: 3.3 ***8211; 3.2 (71.3 ***8211; 73.5 US mpg)**

And this only in the initial development stages.

It'll be expensive but it will get cheaper. Crude will trend to be more expensive. At some point it will be cheaper to manufacture synthetic fuels than to dig it up.

We still need to work on proper solar power stations but this is a good step on the road to sustainable energy.

Actually...as you can see from the post above...solar power is part of the process used here.

Funny of all the trillionaire economy g20 countries of the world, bloody 3rd world Ethiopia is leading the charge of the world in the global energy market, something like 20% of Ethiopia is charged by solar energy. Theres even a huge water dam project(biggest of its kind in history) developed purely to use solar energy.

Again...in reference to the above post...solar and hydro are used as part of the process.

In cases like this one, you should carefully look at the "producing process"...

Now: you should find out exactly what (and in which amounts) fuel is used in order to produce those temperature and pressure needed for the reactions specified above... (Usually, people find out that the fuel needed exceeds in pollution effects the "old fuels")... I hope this is not the case here...

Again...some of these points are addressed in the above. The exact break down to your question is not fully available...but they classify this as a green solution...soooo

[Furn]

Nowhere is the use of coal mentioned...that would hardly make it a green project as it is refereed to as being.

from another article...

The first step in the process involves harnessing renewable energy through solar, wind or hydropower. This energy is then used to heat water to temperatures in excess of 800oC (1472oF). The steam is then broken down into oxygen and hydrogen through high temperature electrolysis, a process where an electric current is passed through a solution.

http://www.iflscience.com/chemistry/...carbon-dioxide

Also...look at the fuel consumption...

Audi A3 Sportback g-tron:
CNG consumption in kg/100 kilometers: 3.3 ***8211; 3.2 (71.3 ***8211; 73.5 US mpg)**

And this only in the initial development stages.



Actually...as you can see from the post above...solar power is part of the process used here.



Again...in reference to the above post...solar and hydro are used as part of the process.



Again...some of these points are addressed in the above. The exact break down to your question is not fully available...but they classify this as a green solution...soooo

Yeah but to do it on a mass scale, as in run millions of cars every day, where is the energy going to come from ?

[New England]

You still need energy to reverse the reaction.

Hydrocarbons plus oxygen gives of carbon dioxide and water plus energy.

The energy required to make the new bonds in CO2 and H2O is less than the energy in the hydrocarbon bonds so you get an energy output.

To reserve the reaction you need to input energy to create the new bonds.

So you still have the problem of where to get the energy to make this fuel from. Not much point making fuel from CO2 and water if your burning coal to do it.

the sun, the tide, the wind, the heat of the planet, the thrusts of our deontay wilder [aka, the big 12.]

[Tom Cruise]

the sun, the tide, the wind, the heat of the planet, the thrusts of our deontay wilder [aka, the big 12.]

Good shout

[jaded]

Yeah but to do it on a mass scale, as in run millions of cars every day, where is the energy going to come from ?

As the 2nd article mentions...once again it comes from solar...wind and hydropower.

I'm sure you realize that refining crude oil into gasoline is something that also requires energy consumption...it's not like gasoline is pumped from the ground or oil wells. It requires mass amounts of energy to refine oil into gasoline and it is none of which is green energy. And exploration and digging new wells is not cheap nor without energy consumption. It is also a hit and miss venture.

You have to believe that if this was not an economically viable project it would have gone nowhere.