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Christof Weinlaender

Christof Weinlaender

Insitute of Thermal Engineering, Austria

Title: SOFC CCHP – Treating biogas for the use in a SOFC-system

Biography

Biography: Christof Weinlaender

Abstract

A SOFC CCHP system (Combined Cooling, Heat and Power) using renewable energy sources (biogas, sewage gas, landfill gas) will be developed to achieve high efficiencies. While electrical power will be produced at very high efficiencies using a SOFC (Solid Oxide Fuel Cell), the energy of the hot exhaust gas will be used to operate an absorption chiller system which provides a low temperature coolant and its waste heat can be used for heating. The combined system allows the utilization of various renewable energy sources and a high annual efficiency. Depending on the utilized fuel, which will be converted in the SOFC, different requirements for the gas cleaning unit have to be taken into account. Due to the planned multi fuel ability of the system, an overall concept for the gas cleaning and gas processing unit must be developed to achieve a high degree of standardization. The desulfurization of biogas is essential for the successful operation of SOFCs. H2S is one of the main components in biogas. In order to feed a solid oxide fuel cell, the contaminated gas has to be reduced to a certain degree. In this work, different parameters onto the desulfurization performance of commercially available desulfurization adsorbents were investigated. H2S removal efficiency was monitored under various operating conditions such as different temperatures, space velocities and inlet concentrations. The experience obtained from these tests provides fundamental knowledge for further development activities for such systems. This includes the determination of the useful power range for a product, the real dynamic of the system, the suitability of different fuels and their influence on the system performance as well as potentials for process simplifications and useful data for adsorption tower design and process optimization.

 

Recent Publications:

  1. Weinländer, C., Neubauer, R. & Hochenauer, C. (2016), Low-temperature H2S removal for solid oxide fuel cell application with metal oxide adsorbents. Adsorption Science & Technology, 10.1177/0263617416672664
  2. Neubauer, R., Weinländer, C., Kienzl, N., Schröttner, H. & Hochenauer, C. (2016) Adsorptive Desulfurization: Fast On-Board Regeneration and the Influence of Fatty Acid Methyl Ester on Desulfurization and in Situ Regeneration Performance of a Silver-Based Adsorbent. Energy Fuels, 30 (6), pp 5174–5182.
  3. Neubauer, R., Husmann, S. M., Weinländer, C., Kienzl, N., Leitner, E. & Hochenauer, C. (2016) Acid base interaction and its influence on the adsorption kinetics and selectivity order of aromatic sulfur heterocycles adsorbing on Ag-Al2O3. Chemical engineering journal. 309, S. 840 849 S.
  4. Aksamija, E., Weinländer, C., Sarzio, R. & Siebenhofer, M. (2015) The Taylor-Couette Disc Contactor: A Novel Apparatus for Liquid/Liquid Extraction. Separation science and technology. 50, 18, S. 2844-2852
  5. Aksamija, E., Weinländer, C., Sarzio, R. & Siebenhofer, M. (2013) A Novel Simpflified Design for Agitated Extraction Columns. 9th European Congress of Chemical Engineering