Microreactors - New Technology for Modern Chemistry.pdf - Technologia - jaknamalowana

W. Ehrfeld, V. Hessel, H. Löwe

Microreactors

Microreactors: New Technology for Modern Chemistry. W. Ehrfeld, V. Hessel, H. Löwe

ISBN: 3-527-29590-9

Wolfgang Ehrfeld, Volker Hessel, Holger Löwe

Microreactors

New Technology for Modern Chemistry

Weinheim · New York · Chichester · Brisbane · Singapore · Toronto

III

W. Ehrfeld, V. Hessel, H. Löwe

Institut für Mikrotechnik Mainz GmbH

Carl-Zeiss-Straße 18–20

55129 Mainz

Germany

This book was carefully produced. Nevertheless, authors and publisher do not warrant the infor-

mation contained therein to be free of errors. Readers are advised to keep in mind that statements,

data, illustrations, procedural details or other items may inadvertently be inaccurate.

First Edition 2000

Cover Illustration: Interdigital micromixers realized by small series fabrication.

Courtesy of IMM Mainz GmbH, Mainz, Germany.

Library of Congress Card No.: applied for

British Library Cataloguing-in-Publication Data:

A catalogue record for this book is available from the British Library

Die Deutsche Bibliothek – CIP-Einheitsaufnahme

A catalogue record for this book is available from Die Deutsche Bibliothek

ISBN 3-527-29590-9

Printed on acid-free and low chlorine paper

reproduced in any form – by photoprinting, microfilm, or any other means – nor transmitted or translated

into a machine language without written permission from the publishers. Registered names, trademarks,

etc. used in this book, even when not specifically marked as such are not to be considered unprotected by

law.

Composition: Text- und Software-Service Manuela Treindl, D-93059 Regensburg

Printing: Strauss Offsetdruck GmbH, D-69509 Mörlenbach

Bookbinding: Wilh. Osswald & Co., D-67433 Neustadt

Printed in the Federal Republic of Germany

Preface

Today’s microreaction technology is no longer in its infancy. Whereas the first four years of

development were characterized by basic feasibility work and the development of methods,

sometimes even accompanied by skepticism and lack of understanding, the success of this

emerging technology these days is beyond doubt. Small microfabricated reactors have proven

to provide excellent mass and heat transfer properties as well as uniform flow patterns and

residence time distributions. Some of these devices even are available commercially and

being tested by a growing community of researchers. This, for instance, holds for interdigital

micromixers, thus stimulating a rapid accumulation of know-how in the field of micromixing.

The numerous teams of researchers investigating microreaction technology belong to

many disciplines, e.g. chemists, physicists, chemical engineers, material scientists, and

mechanical engineers. Meanwhile, a vivid communication has started, the series of “Inter-

national Conferences on Microreaction Technology” being the focus of this exchange of

scientific results. It seems to be that something which was hidden for a long time is now

bursting out, and has the potential to a complete change of today’s chemical methodologies

and, maybe even more notable, the corresponding habits of the researchers.

Industrial contributions played an important role throughout the recent years’ develop-

ments. Innovative companies like DuPont and BASF promoted and supported these devel-

opments by own activities from the very beginning. The Merck company presented their

first example of implementing a new industrial process, at least assisted by means of

microreaction technology. Axiva seems to be interested to become a professional provider

of modern process development utilizing microreactors. A number of companies followed

these examples, e.g. Schering, Degussa-Hüls, and Bayer, just to name a few. But not only

German companies are involved, Rhône-Poulenc/Rhodia in France, Shell in the Nether-

lands and the United Kingdom, as well as DuPont and UOP in the U.S.A. have become

more and more active.

The technical and scientific development concerning micoreactors is tremendous. Know-

ledge concerning microfabrication, modeling, design concepts, and testing is provided and

increasingly spread between different journals. Due to this growing number of publications

and a so far missing common platform, e.g. a journal on microreaction technology, the

authors strongly felt that it is high time to summarize and categorize the research work in

recent years. In this context, this book presents the state of the art of this new discipline, but

is also designated to reveal its full beauty and breathless excitement.

This book is written both for the newcomer and the expert as well as for researchers

from industry and research institutions. It is neither intended to attract chemists or chemi-

cal engineers only nor being dedicated to “microtechnicians”. Hence, the book, as

microreaction technology itself, should be of interdisciplinary character in the true sense. It

tries to join the different disciplines, to evidence the success of mutual interaction, and to

high-light the benefits of such a strategy.

Preface

The book contents are subdivided into two major parts. The beginning of each chapter is

aimed to present general aspects of a specific class of microdevices, while in separate sec-

tions details are discussed therein. Consequently, large parts of this book contain a multi-

tude of single information compiled in a comprehensive volume. Nevertheless, concepts

are introduced as well and the respective fields of applications are indicated. Presently,

such a systematic analysis in most cases is limited since a number of activities regarding

microreactors still remain in their starting phase. However, there is an ultimate need to

expand this systematic analysis in a future version of this book.

A book, as all hard and genuine work, seldom is elaborated by a single person or a small

group on their own, but rather in a framework of human co-operation. In this context, the

authors would like to acknowlegde the aid of all members of the Microreaction Technology

and Chemistry Departments at the Institut für Mikrotechnik Mainz. In particular, this refers

to L. Agueda for organization, J. Schiewe and Th. Richter for discussion and proof-read-

ing, and Ch. Hofmann for illustration. Additionally, all funders and believers in this tech-

nology are acknowlegded, in particular from chemical industries as well as the DECHEMA

and DARPA organizations. The same holds for the VCH-Wiley publishers, early recogniz-

ing the importance of microreaction technology and providing the possibility for this com-

prehensive volume. Finally, the authors are deeply indebted to the scientific community

active in microreaction technology. For instance, a number of researchers helped a lot by

providing illustrations and proof-reading of sections.

IMRET 4 in Atlanta is just around the corner. The technology development certainly

will speed up. Standardization and system assembly as well as commercialization of

microreactors may become relevant key topics. Production issues based on microreactors –

a topic only mentioned in a whisper two years ago – attracts increasing interest. These

interesting topics certainly will contribute to the growing progress in microreaction tech-

nology.

We are really glad that we actively could take part in such a fascinating development.

W. Ehrfeld, V. Hessel, H. Löwe

Mainz, March 2000

Microreactors - New Technology for Modern Chemistry.pdf

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika: