Power‐to‐Liquids: Synthetisches Rohöl aus CO₂, Wasser und Sonne

Abstract

Flüssigkraftstoffe können durch unterschiedliche Prozesse aus regenerativ erzeugtem Strom hergestellt werden (e-fuels). Viele der sog. Power-to-Liquids (PtL) Verfahren basieren auf der Umsetzung von Wasserstoff und Kohlendioxid zu einem flüssigen Energieträger. In der Pilotanlage, die zurzeit in Dresden von der sunfire GmbH in Betrieb genommen wird, werden Dampfelektrolyse, CO 2 -Konvertierung und die Fischer-Tropsch-Synthese in einem Prozess realisiert. In der Anlage soll die Machbarkeit des Prozesses demonstriert und dabei ein Fass flüssige Kohlenwasserstoffe pro Tag produziert werden. Power-to-Liquids: Synthetic Crude Oil from CO 2 , Water, and SunshineOne way to push forward renewable fuels is to convert electric energy from sustainable sources into fuels using so called Power-to-Liquids (PtL) processes. In addition, PtL processes can be used to stabilize the electricity grid, using renewable energy in times when excessive electricity supply is available. The company sunfire is currently commissioning a pilot plant to produce one barrel of Fischer-Tropsch product per day. The plant includes a hydrogen production through high temperature steam electrolysis, a conversion reactor, the Fischer-Tropsch synthesis and a distillation column.

Techno-economic study of the storage of fluctuating renewable energy in liquid hydrocarbons

“…The Gibbs energy minimization reactor model assumes thermodynamic equilibrium for the RWGS, which is a reasonable assumption at high temperatures [8], [20]. The operation temperature and pressure are assumed to be 900 ° and 2.5 , respectively [21]. In addition to the fresh feed, the To reduce coking in the reformer, the carbon safety factor (CSF) was introduced [14], [22].…”

The Role of Direct Air Capture in Mitigation of Anthropogenic Greenhouse Gas Emissions

“…CO 2 from the atmosphere can also be used for the production of a range of synthetic materials and fuels by using renewable energy (Bhanage and Arai, 2014). This has the advantage that "hard-to-electrify" sectors such as aviation, or long-distance heavy transportation, can be indirectly electrified via synthetic hydrocarbon fuels such as synthetic methane or Fischer-Tropsch fuels (Olah et al, 2009;Verdegaal et al, 2015), as well as a range of other hydrocarbon based products (e.g., polymers) can be made that previously relied on fossil resources. Together with its partners, Climeworks has demonstrated the viability of combining these technologies-usually referred to as Power-to-X (or PtX)-in Troia, Italy 10 .…”

Experimental and mechanistic investigation of benzene formation during atmospheric pressure flow reactor oxidation of n-hexane, n-nonane, and n-dodecane below 1200 K

“…from wind, solar energy is intermittent in nature and therefore the use of surplus power in energy storage is very important for a secure continuous supply. The power-to-fuel process has promising potential, where CO 2 and electricity is converted to liquid fuels [2,3]. Another carbon source, and in the context of this work, is use of energy from renewable sources (e.g.…”