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DGMK-Project Fuel Oils

Limitation of Microbial Degradation of Middle Distillates

Duration
2019 until 2022
Research Center
OWI Science for Fuels gGmbH: Heike Zirkenbach
RWTH Aachen iAMB Institute for Applied Microbiology: Dr. Maximilian Surger
RWTH Aachen UBC Institute for Environmental Research: Dr. Felix Stibany
IGF Plan
20840 N
Reason and Goal

Research on the microbiological degradation of middle distillates, especially with biogenic components, has been carried out for many years. Within the two previous projects, the identification of microorganisms in storage tanks, the definition of growth-relevant parameters, and the influence of microbes on materials and middle distillates were in the foreground. In addition, the identification of secreted metabolites as well as the investigation of resulting micro-emulsions were investigated. Up until now, the influence of different compositions of middle distillates has been neglected, also in international research groups. Particularly in view of the growing share of alternative substitutes in the fuel mix or the integration of de-fossilised middle distillates as pure components, the development of avoidance strategies, but also the development of screening methods in the field of biological degradation capacity is necessary.

Summary

Within this research project the influence of different compositions of middle distillates has to be investigated. Based on the results of the two direct previous projects, the corresponding analysis tools are available to investigate a broad matrix. By the extension of e.g. the passive dosing method or the 2D-GC-MS analysis, more detailed information about the metabolic pathways and the differences of the used fuels can be obtained. The aim of the research project must be to develop effective avoidance strategies and to characterise them according to their effectiveness. While on the one hand potentially critical components can be identified through chemical-biological investigations, a second part of the project will investigate possible system modifications to the burner system in order to minimise microbiological growth.

Project Status

Project Chairperson

Dr. Richard Wicht

Chairman

AGQM Biodiesel Quality Management Working Group
Berlin

Project Coordinator

Jan Ludzay

Head of the Refining and Product Application Department

Nadine Ludzay

Coordination

Promotion

IGF - Industrial Collective Research

Federal Ministry for Economic Affairs and Energy (BMWi)