报告题目： High temperature corrosion issues in bio mass and waste combustion and Solid Oxide Fuel Cells

报告人：Jan-Erik Svensson

Division of Energy and Materials

CHEMICAL AND BIOLOGICAL ENGINEERING

Chalmers University of Technology, Gothenburg, Sweden

时间：2012年5月10日（周四）上午8:30

地点：系馆报告厅

简介：

Examples of material research at Chalmers University of Technology;

High temperature corrosion issues in bio mass and waste combustion and Solid Oxide Fuel Cells

In many cases high temperature corrosion is an obstacle to the development of new, energy-saving and environmentally friendly techniques and processes. Hence, high temperature corrosion research is of strategic value. In this lecture examples are given for:

- Biomass and waste combustion

- Solid Oxide Fuel Cells

The causes of material degradation and the mechanisms of corrosion are discussed.

Biomass and waste combustion gives rise to very complex and corrosive flue gas and deposits. The talk presents results from both laboratory research as well as field exposures in commercial boilers. In order to solve the corrosion problems, two strategies apply; one can either try to mitigate the corrosivity of the fireside environment or one can make use of more corrosion-resistant materials. New generic knowledge regarding critical fireside corrosion phenomena in the plants will be presented. Possible ways to overcome the corrosion problems in real biomass and waste fired boilers are given.

Solid Oxide Fuel Cell technology is a potentially important source of sustainable electrical energy. In recent years ferritic 22% Cr steels has become a common construction material for the use as interconnector plates. However, high temperature corrosion and chromium evaporation are major issues that remain to be solved. In order to increase the lifetime of the metallic components in SOFC, nano-coatings of reactive elements (RE) have been investigated. The results show that application of such coatings can reduce the corrosion rates substantially and thus increase the lifetime of the fuel cell stack.

Jan-Erik Svensson

Jan-Erik Svensson (born 1965) is Professor in Materials Chemistry. He is the head of the division of Energy and Materials in the Department of Chemistry and Biological Engineering. His research concerns mainly material chemistry for energy applications, application areas includes biomass and waste combustion and Solid Oxide Fuel Cells (SOFC).

Jan-Erik Svensson is the deputy director of the Swedish High Temperature Corrosion Center. HTC is a Swedish competence centre jointly sponsored by the Swedish Energy Agency, Chalmers University of Technology and eighteen member companies. HTC is hosted by Chalmers University of Technology. Jan-Erik Svensson is project manager for both national and EU projects within the field of high temperature corrosion. He is also the coordinator of the Nordic top level research project on nano-coatings for SOFC.