各位老师，同学！

受岑可法院士邀请，德国汉堡技术大学Joachim Werther教授将于2014年5月12日（星期一）在浙江大学玉泉校区能源清洁利用国家重点实验室/热能工程研究所做学术报告。

报告内容、时间、地点参见下表。

    Joachim Werther教授为国际著名流化床专家，德国汉堡-哈尔堡工业大学教授，固体颗粒技术研究所(the Institute of Solids Process Engineering and Particle Technology, Technical University of Hamburg-Harburg, Germany)前所长，德国VGB技术委员会主席。1972年在德国埃尔兰根-纽伦堡大学获得化学工程博士学位，1999－2001年任汉堡-哈尔堡工业大学副校长。

    该报告是111项目外国专家系列讲座之一。

欢迎各位老师组织同学参加！

Prof. Werther’s Lectures Schedule on May 12, 2014  (111 Programe)

BRIDGES BETWEEN INDUSTRIAL PRACTICE AND FUNDAMENTAL RESEARCH IN FLUIDIZATION TECHNOLOGY

Joachim Werther* and Ernst-Ulrich Hartge

Institute of Solids Process Engineering & Particle Technology,
Hamburg University of Technology, Hamburg, Germany

*Email: werther@tuhh.de

A gap exists between industrial practice and fundamental research which has developed since the introduction of fluidization technology in the late 40’s of the last century. In industry existing processes are improved and new processes are developed in a more or less empirical way while in academia the focus is on the understanding of underlying physical and chemical mechanisms. In the present paper different ways to bridge this gap are highlighted. One way is that experience from fundamental research work can be brought to industry in the form of measurement techniques and industry-supporting cold-model work. Another solid bridge is developing in the simulation of large-scale reactors. In fundamental research new models have been developed which together with special software and high computing power are ready to help industry with the optimization of existing and the development of new fluidized bed reactors. Finally, process simulation is identified as a field which provides many chances for bridging the gap. In fundamental research tools for flowsheeting are being developed which can be used for solids processes in the same way as existing tools for fluid processes. They can be applied in industry to simulate complex solids processes which consist of a multitude of process units. Recent work on a multiscale based approach to process simulation is promising a more reliable description of process units.

LIGNIN PYROLYSIS IN A CIRCULATING FLUIDIZED BED – INFLUENCE OF TEMPERATURE AND CHAR FORMATION ON BED MATERIAL

Miika Franck¹, Ernst-Ulrich Hartge¹, Stefan Heinrich¹, Joachim Werther¹, Dietrich Meier²

¹  Institute of Solids Process Engineering & Particle Technology, Hamburg University of Technology, Hamburg, Germany

²  Thünen Institute of Wood Research, Hamburg, Germany

Abstract – In this work, the pyrolysis of Kraft lignin in a circulating fluidized bed has been studied. The focus lies on the pyrolysis mechanism and on the influences of temperature and char accumulation in the bed on liquid product yields and composition. Also the yield and composition of gaseous products and char are investigated. The pyrolysis oil yield has its maximum at 650°C. The char yield decreases with rising temperature, while the gas yield in contrary rises. With increasing char deposition on the bed material, oil yield decreases in the considered range by about 10-20 %. It can be observed that with increasing char deposition on the bed material the pyrolysis oil composition is shifted towards smaller molecular weight.

SPRAY GRANULATION IN A CIRCULATING FLUIDIZED BED SYSTEM: THE ROLE OF BREAKAGE AND ATTRITION

Bjoern Stiller¹, Ernst-Ulrich Hartge, Stefan Heinrich and Joachim Werther

Institute of Solids Process Engineering and Particle Technology,
Hamburg University of Technology, 21073 Hamburg, Germany

¹ now with BASF SE, 67056 Ludwigshafen, Germany