Catalyst Design for Tailor-Made Polyolefins

Catalyst Design for Tailor-Made Polyolefins

Author: M. Terano

Publisher: Elsevier

Published: 1994-11-01

Total Pages: 437

ISBN-13: 0080887538

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Recent development of olefin polymerization catalysts has caused marked changes in both industrial and academic research. Industrial use of homogeneous metallocene catalysts has already begun in the fields of high density polyethylene and syndiotactic polypropylene. Moreover, important data have been obtained from academic investigations which have proved useful for understanding conventional heterogeneous Ziegler-Natta catalysts. From the industrial viewpoint, however, heterogeneous high-yield catalysts seem to be more important.The present volume contains invited lectures and contributed papers. The following topics are covered: (1) Heterogeneous Catalysts, (2) Metallocene Catalysts and (3) New Trends in the Polyolefin Industry.


Catalyst Design for Tailor-made Polyolefins

Catalyst Design for Tailor-made Polyolefins

Author: Kazuo Soga

Publisher: Elsevier Science & Technology

Published: 1994

Total Pages: 448

ISBN-13:

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Recent development of olefin polymerization catalysts has caused marked changes in both industrial and academic research. Industrial use of homogeneous metallocene catalysts has already begun in the fields of high density polyethylene and syndiotactic polypropylene. Moreover, important data have been obtained from academic investigations which have proved useful for understanding conventional heterogeneous Ziegler-Natta catalysts. From the industrial viewpoint, however, heterogeneous high-yield catalysts seem to be more important. The present volume contains invited lectures and contributed papers. The following topics are covered: (1) Heterogeneous Catalysts, (2) Metallocene Catalysts and (3) New Trends in the Polyolefin Industry.


Mesoporous Molecular Sieves 1998

Mesoporous Molecular Sieves 1998

Author: L. Bonneviot

Publisher: Elsevier

Published: 1998-07-08

Total Pages: 633

ISBN-13: 0080536247

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The original properties of mesoporous molecular sieves are so unique that the design of most existing catalysts could be reconsidered. It might indeed be of interest to introduce MMS either as a support or as the active phase, merely on the basis of their high surface areas, narrow pore size distribution and flexibility in composition. The recent literature provides examples of MMS based catalysts of many types such as acid-base solids, supported metals and supported oxides, mixed oxides, anchored complexes and clusters, grafted organic functional groups and others. Examples of all these developments are documented in the present proceedings including some spectacular new proposals. The new metallic (Pt) mesophases are specially worth mentioning because they represent a new approach to producing non-supported highly dispersed metals.In these proceedings the reader will find feature articles and regular papers from many worldwide groups, covering all aspects of synthesis, physical characterization and catalytic reactivity of MMS and their chemically modified forms. It is actually remarkable that this recent development brought together an even broader spectrum of scientists from traditionally unrelated fields such as those of liquid crystals, surfactants, sol-gels, amorphous oxides and mixed oxides, solid state, adsorbents and heterogeneous catalysts. Obviously, this is a fast-growing research area which triggers the imagination and creativity at the cross-road between material design, molecular surface tailoring and catalytic applications.


Spillover and Mobility of Species on Solid Surfaces

Spillover and Mobility of Species on Solid Surfaces

Author: A. Guerrero-Ruiz

Publisher: Elsevier

Published: 2001-08-02

Total Pages: 501

ISBN-13: 0080539742

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"Spillover and Mobility of Species and Solid Surfaces" collects the papers which were presented at the Fifth International Conference Spillover, either as oral or poster contributions, as well as the summaries of the invited lectures. This congress and its publication in the Studies on Surface Science and Catalysis series follow the tradition of previous conferences on spillover, initiated in Lyon, 1983, and continued in Leipzig, 1989, Kyoto 1993 and Dalian, 1997. For the fifth conference, held in S.L. el Escorial (Madrid), the organising committee has attempted to compile representative contributions which illustrate the advances in understanding the spillover phenomenon since 1997. Spillover is a process taking place during the interface of gas reactant molecules (mainly hydrogen and oxygen) on solid surfaces. However, different contributions to the more general area of the chemistry at surfaces, related with the mobility and migration of species, diffusion through membranes, fuel cell catalysts, etc., have also been included. In fact the title of the present volume summarizes this attempt to extend the conference topics towards dynamics at surfaces.Among the 70 contributions received, the 56 accepted papers were selected on the basis of the reports of at least two international reviewers, according to standards comparable to those applied for other specialised journals. These papers are from 21 different countries.


Porous Materials in Environmentally Friendly Processes

Porous Materials in Environmentally Friendly Processes

Author: I. Kiricsi

Publisher: Elsevier

Published: 1999-07-30

Total Pages: 841

ISBN-13: 0080539289

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To leave our planet liveable in the next millennium mankind is forced to find environmentally friendly ways in solving the problems of everyday life. Among others, technologies of producing chemicals, absolutely necessary for maintaining a comfortable life, have to be modified, in some instances fundamentally changed now, or in the very near future.Developing new technologies requires strong and innovative fundamental research. In order to provide opportunity for crossfertilization the Federation of European Zeolite Associations (FEZA) decided to organise a conference, where researchers from academia as well as industry can meet, exchange ideas, show and discuss research efforts and results concerning the development of environmentally friendly processes and technologies.The conference, and thus the proceedings are divided into two main parts. The first part contains works concerning the synthesis, modification and characterisation of zeolitic materials as catalyst candidates in environmentally friendly technologies. Works in the second part describe various applications starting from developing highly selective reactions for the fine chemical industry, through waste-water treatment to applying zeolite for formulating bacteria for pest control.


Mesoporous Crystals and Related Nano-Structured Materials

Mesoporous Crystals and Related Nano-Structured Materials

Author: Osamu Terasaki

Publisher: Elsevier

Published: 2004-05-25

Total Pages: 307

ISBN-13: 0080536239

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Mesoporous Crystals and Related Nano-Structures Materials contains the invited lectures to be presented at the symposium on Mesoporous Crystals and Related Nano-Structures Materials, Stockholm, Sweden, June 1-2, 2004. This book highlights the core research that has led to such a fruitful and exciting field. Passing on, first hand, the synthesis of this novel material makes this book an important reference material to researchers young and old.* This book highlights the core research that has led to the fruitful and exciting field of mesoporous materials* It provides an overview of the studies which have led to the discovery of mesoporous materials as well as first preparations of mesoporous materials by researchers across the world* This book not only serves as important reference material but also as a source of scientific inspiration to all researchers working in the field of mesoporous materials


Natural Gas Conversion V

Natural Gas Conversion V

Author: A. Parmaliana

Publisher: Elsevier

Published: 1998-09-17

Total Pages: 1005

ISBN-13: 0080537308

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On January 1988, the ascertained and economically accessible reserves of Natural Gas (NG) amounted to over 144,000 billion cubic meters worldwide, corresponding to 124 billion tons of oil equivalents (comparable with the liquid oil reserves, which are estimated to be 138 billion TOE). It is hypothesized that the volume of NG reserve will continue to grow at the same rate of the last decade. Forecasts on production indicate a potential increase from about 2,000 billion cubic meters in 1990 to not more than 3,300 billion cubic meters in 2010, even in a high economic development scenario. NG consumption represents only one half of oil: 1.9 billion TOE/y as compared to 3.5 of oil. Consequently, in the future gas will exceed oil as a carbon atom source. In the future the potential for getting energetic vectors or petrochemicals from NG will continue to grow.The topics covered in Natural Gas Conversion V reflect the large global R&D effort to look for new and economic ways of NG exploitation. These range from the direct conversion of methane and light paraffins to the indirect conversion through synthesis gas to fuels and chemicals. Particularly underlined and visible are the technologies already commercially viable.These proceedings prove that mature and technologically feasible processes for natural gas conversion are already available and that new and improved catalytic approaches are currently developing, the validity and feasibility of which will soon be documented. This is an exciting area of modern catalysis, which will certainly open novel and rewarding perspectives for the chemical, energy and petrochemical industries.


Petroleum Biotechnology

Petroleum Biotechnology

Author: Rafael Vazquez-Duhalt

Publisher: Elsevier

Published: 2004-09-18

Total Pages: 564

ISBN-13: 0080473717

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This book is one of a kind in the field of petroleum biorefining and biological upgrade of petroleum; it presents a critical review as well as an integrated overview of the potential biochemical processes, bridging the gap between academia and industry. It addresses today's demanding production challenges, taking into account energy efficient and environmentally friendly processes, and also looks at the future possibility of implementing new refinery systems. Suitable for those practitioners the petroleum industry, students and researchers interested in petroleum biotechnology.* Covers a new application field for biotechnology* Looks at innovative processes for the petroleum industry* Presents examples of modern environmental processes


Recent Advances and New Horizons in Zeolite Science and Technology

Recent Advances and New Horizons in Zeolite Science and Technology

Author: H. Chon

Publisher: Elsevier

Published: 1996-07-08

Total Pages: 485

ISBN-13: 0080543901

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This volume was conceived as a handbook for the Pre-Conference Summer School on Zeolites, held in Taejon, Korea. The 11th IZC Summer School was organized to acquaint those already actively working in zeolite science and technology with the latest developments and to develop new prospects of zeolite science and technology for the 21st century.The aim of this volume is to give an extensive review and analysis of the important new findings of the last 10 years on the synthesis, characterization and applications of zeolite materials as well as the prediction of new R&D directions for the next decade.


Experiments in Catalytic Reaction Engineering

Experiments in Catalytic Reaction Engineering

Author: J.M. Berty

Publisher: Elsevier

Published: 1999-08-11

Total Pages: 289

ISBN-13: 0080531423

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The science of catalytic reaction engineering studies the catalyst and the catalytic process in the laboratory in order to predict how they will perform in production-scale reactors. Surprises are to be avoided in the scaleup of industrial processes. The laboratory results must account for flow, heat and mass transfer influences on reaction rate to be useful for scaleup. Calculated performance based on these results must also be useful to maximization of profit and safety and minimization of pollution. To this end, information on products as well as byproducts and heat produced must be generated. If a sufficiently large database of knowledge is produced, optimization studies will be possible later if economic conditions change.The field of reaction engineering required new tools. For kinetic and catalyst testing, the most successful of these tools was the internal recycle reactor. Studies in recycle reactors can be made under well-defined conditions of flow and associated transfer processes, and close to commercial operation. The recycle reactor eliminates or minimizes the effect of transfer process, and allows the remaining ones to be known.Features of this book:• Provides insight into a field that is neither well understood nor properly appreciated.• Gives a deeper understanding of reaction engineering practice.• Helps avoid frustration and disappointment in industrial research. This book is short and clear enough to assist all members of the R&D and Engineering team, whether reaction engineers, or specialists in other fields. This is critical in this new age of computation and communication, when team members must each know at least something of their colleagues' fields. Additionally, many scientists in more exploratory or fundamental fields can use recycle reactors to study basic phenomena free of transfer interactions.