Audi advances e-fuels technology: new “e-benzin” fuel being tested

Posted on 11. Mar, 2018 by in Audi Canada

Together with Global Bioenergies S.A. in Leuna (Saxony-Anhalt), a largest collection of e-gasoline ever constructed – 60 liters (15.9 US gal) – has been achieved. “Like all Audi e-fuels, a new fuel has many advantages. It isn’t contingent on wanton oil, it is concordant with a existent infrastructure and it offers a awaiting of a sealed CO cycle,” pronounced Reiner Mangold, Head of Sustainable Product Development during AUDI AG. Audi “e-benzin” (e-gasoline) is radically a glass isooctane. It is now constructed from biomass in a two-step process. In a initial step, Global Bioenergies produces gaseous isobutene (C4H8) in a proof plant. In a second step, a Fraunhofer Center for Chemical Biotechnological Processes (CBP) in Leuna uses additional hydrogen to renovate it into isooctane (C8H18). The fuel is giveaway of sulfur and benzene and is therefore generally low in pollutants when it burns.

Audi engineers are now examining a explosion and glimmer function of a renewable fuel in a exam engine. As a high-purity fake fuel with really good anti-knock properties, Audi “e-benzin” (e-gasoline) offers a probability to serve boost engine application and so boost efficiency. Over a middle term, a plan partners aim to cgange a prolongation routine so that it will not need biomass – in this case, CO2 and hydrogen constructed from renewable sources should be sufficient source materials.

Audi’s choice fuels already offer good intensity for tolerable mobility and are assisting revoke CO2 emissions from explosion engines – by adult to 80 percent** in g-tron models, for example.

For Audi, e-fuels are some-more than only a theme of investigate in laboratories. Since 2013, a code with a 4 rings has been charity renewable Audi e-gas on a market. It originates in partial from a company’s possess power-to-gas plant in Werlte (Emsland). Customers fill adult their Audi g-tron indication during any CNG stuffing hire and compensate a unchanging cost for it. By feeding a computed volume of Audi e-gas into a healthy gas grid, Audi ensures a immature advantages of a program, including a analogous rebate in CO2 emissions.

Audi e-diesel is also partial of a Audi e-fuels portfolio. In Dresden, Audi’s team-work partner Sunfire operated a commander plant for this purpose from late 2014 to Oct 2016. As in Werlte, immature electricity granted a energy, and H2O and CO2 were also used as tender materials. The finish product was called Blue Crude, that was polished into Audi e‑diesel. Audi is now formulation prolongation ability in Laufenburg in a Swiss canton of Aargau. Together with partners Ineratec GmbH and Energiedienst Holding AG, a new commander plant will furnish around 400,000 liters of Audi e-diesel per year. For a initial time ever, hydroelectric appetite is a solitary appetite supply compulsory for this.

Fuel expenditure of a models named above:
A3 Sportback g-tron: CNG expenditure in kg/100 km: 3.5 – 3.3*; total fuel consumption in l/100 km: 5.4 – 5.1* (43.6 – 46.1 US mpg); total CO2 emissions in g/km (CNG): 96 – 89* (154.5 – 143.2 g/mi); total CO2 emissions in g/km (gasoline): 126 – 117* (202.8 – 188.3 g/mi)
A4 Avant g-tron: CNG expenditure in kg/100 km: 4.3 – 3.8*; total fuel expenditure in l/100km: 6.5 – 5.5* (36.2 – 42.8 US mpg); total CO2emissions in g/km (CNG): 117 – 102* (188.3 – 164.2 g/mi); total CO2 emissions in g/km (gasoline): 147 – 126* (236.6 – 202.8 g/mi)
A5 Sportback g-tron: CNG expenditure in kg/100 km: 4.2 – 3.8*; total fuel expenditure in l/100 km: 6.3 – 5.6* (37.3 – 42.0 US mpg); total CO2 emissions in g/km (CNG): 114 – 102* (183.5 – 164.2 g/mi); total CO2 emissions in g/km (gasoline): 143 – 126* (230.1 – 202.8 g/mi)

* Fuel expenditure and CO2 emission total given in ranges depending on a tires/wheels used

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