Eckhard Ströfer

Senior Research Fellow

Dipl. Chem. Dr. rer. nat.  Eckhard Ströfer

FB Maschinenbau und Verfahrenstechnik
Lehrstuhl für Thermodynamik
Technische Universität Kaiserslautern
Erwin-Schrödinger-Straße 44
Gebäude 44/374
67663 Kaiserslautern

Tel.: +49(0)631 205-2410
Fax: +49(0)631 205-3835

E-Mail: eckhard.stroefer[at]mv.uni-kl.de

 

Projektbeschreibung

Innovation

Skalierung von Wertschöpfungsketten / Scaling of value chains

Chemical value added chains connect the raw materials of our planet with the markets for products and energy. The chemical industry is the „Materials Supplier“ for downstream customers.

Chemical value chains evolve according to progress in technology and changes in the social and economic environment. This evolution is global, but takes advantage of local strengths and specialities. The analysis of the state of the art and the prognosis of future developments in space and time lead to the identification of strongpoints for R&D.

The innovation of value added chains is strongly driven by technology. The whole portfolio of knowledge on thermodynamics, reaction kinetics and engineering must be applied. This will result in an economic and ecological optimisation of reactors, work-up and Verbund structures.

Specialities: Phosgenations, Hydrogenations, Trioxane & Formaldehyde, Electronic grade products, Inorganics, Recycle of residues & hydrogenchloride; Evalution of technlogies & Verbund systems

Watzenberger O., Ströfer E. and Anderlohr A. (1999), Unsteady-State Oxidative Dehydrogenation of Ethylbenzene to Form Styrene. Chem. Eng. Technol., 22: 659–662

Neudert, R., Ströfer, E. and Bremser, W. (1986), On-line NMR in process engineering. Magn. Reson. Chem., 24: 1089–1092

Wölfert, A., Cheng, T.C., Ströfer, E. and Gilbert, N. (2001), Application of CFD-Simulations for Optimising Mixing in Reacting Flows. Chemie Ingenieur Technik, 73: 628–630

Grützner Th., Hasse H., Lang N., Siegert M., Ströfer E. (2007), Development of a new industrial process for trioxane production, Chemical Engineering Science, Volume 62, Issues 18–20: 5613-5620

Rohstoffwandel / Raw Material Change

Une réformation des chaînes de valeur des polyisocyanates aromatiques et aliphatiques basées sur les hydrocarbures bio-fonctionnalisés

Les polyuréthanes, obtenus à partir de la réaction d'un polyisocyanate avec un polyol, sont les matériaux plastiques les plus polyvalents. C'est la raison pour laquelle les chaînes de valeur de polyisocyanates, et la possibilité de les baser sur des matières premières renouvelables, sont techniquement et économiquement intéressantes. La substitution des ressources fossiles par les ressources renouvelables rend généralement le processus plus complexe, mais les procédés de production de polyisocyanates aliphatiques et aromatiques sont une exception. Les chaînes de valeur redessinées sont basées sur la combinaison des connaissances existantes et sont moins compliquées grâce à l'utilisation d'hydrocarbures bio-fonctionnalisés. Le nouveau design pour la production d'isocyanates aliphatiques et aromatiques et la comparaison avec leurs itinéraires classiques avec l'utilisation de ressources fossiles est illustré dans cet article.

A new design of the aliphatic and aromatic polyisocyanates value chains based on bio-functionalised hydrocarbons

Polyurethanes, obtained from the reaction of a polyisocyanate with a polyol, are the most versatile kind of plastic materials. This is the reason why polyisocyanates value chains, and the possibility to base them on renewable raw material, are technically and economically interesting. The substitution of fossil resources by renewable resources usually makes the process more complex, but the processes for the production of aliphatic and aromatic polyisocyanates are an exception. The redesigned value chains are based on the combination of existing knowledge and are less complicated thanks to the use of bio-functionalized hydrocarbons. The new design for the production of aliphatic and aromatic isocyanates and the comparison with their classical routes with the use of fossil resources is illustrated in this article.

Burger, J., Ströfer, E. and Hasse, H. (2016), Process Design in World 3.0 – Challenges and Strategies to Master the Raw Material Change. Chem. Eng. Technol., 39: 219–224

Tsai S.-W., Ströfer E. (2013), 明日世界之能源供給與化學品加值鏈, Chemical Engineering (The Chinese I. Ch. E.), 60: 83 - 89 

Plasmen & OME (Polyoxymethylendimethylether) / Plasmas & OME

Homann K.H., Ströfer E. (1983) Charged Soot Particles in Unseeded and Seeded Flames. In: Lahaye J., Prado G. (eds) Soot in Combustion Systems and Its Toxic Properties. NATO Conference Series (VI Materials Science), vol 7. Springer, Boston, MA

Faubel, C., Hoyermann, K., Ströfer, E. and Wagner, H. Gg. (1979), Untersuchungen zur Reaktion von Wasserstoffatomen mit Dimethyläther, Diäthyläther und tert. Butyl-Methyl-Äther in der Gasphase. In: Berichte der Bunsengesellschaft für physikalische Chemie, 83: 532–538. 

Burger J., Siegert M., Ströfer E., Hasse H., (2010) Poly(oxymethylene) dimethyl ethers as components of tailored diesel fuel: Properties, synthesis and purification concepts. In: Fuel, 89, Issue 11: 3315-3319

Schmitz N., Ströfer E., Burger J., Hasse H. (2017) Development of a Novel Process for the Large-scale Production of OME Fuels from Formaldehyde and Methanol. In: Petrochemistry and Refining in a Changing Raw Materials Landscape. DGMK International Conference 

Oct. 9 – 11, Dresden, Germany

OME:

•Diesel Component: Mixture of Poly-Oxy-Methylen-Di-Methyl-Ethers 

•Properties & Application: Fully miscible with conventional diesel fuel or application as stand-alone-fuel in diesel engines or dual fuel engines (Zündstrahlmotor)

•Efficiency: Strongly reduces soot formation in diesel engines & 

breaks the soot – NOx trade-off in present diesel engine operation 

•Market driver: “diesel – gate” of diesel passenger cars; heavy duty diesel applications (buses, locomotives, vessels, trucks); safe fuel for fuel cell applications

•Potential partners: bus fleet operators, oil companies, engine builders

Studentische Arbeiten

Zur Zeit leider keine Angebote

Hiwi-Jobs

in Absprache

Vorlesungsbetreuung / Sprechzeiten

  • Vorlesungsbetreuung

SS 2017 /18 : Wertschöpfungsketten in der chemischen Industrie

  • Sprechzeiten

am besten per E-Mail einen Termin vereinbaren!

Veröffentlichungen und Patente 

  • [Hier] klicken um die Veröffentlichungsliste von Eckhard Ströfer herunterzuladen.

 

  • [Hier] klicken um die Patentliste von Eckhard Ströfer herunterzuladen.

Ausbildung und Werdegang

  • Studium der Chemie mit Schwerpunkt physikalische Chemie in Göttingen, Chicago und Darmstadt
  • 1981 - 2011 Mitarbeiter der chemischen Industrie in verschiedenen Funktionen (Produktionsbetrieb, Sicherheit und Umweltschutz, Forschung und Entwicklung, Invention & Innovation, Technical Expertises)
  • Achievements: Produktionsprozesse für Anorganika und Polyurethanvorprodukte in Europa, Nordamerika  und Asien
RSS

Letzte Änderung: 17.10.2017