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Book Synthesis and Characterization of Pt Sn MCM 41 Petroleum Reforming Catalysts

Download or read book Synthesis and Characterization of Pt Sn MCM 41 Petroleum Reforming Catalysts written by Naisheng Yao and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book SYNTHESIS AND CHARACTERIZATION OF Cu MCM 41 AND Ni MCM 41 TYPE CATALYTIC MATERIALS

Download or read book SYNTHESIS AND CHARACTERIZATION OF Cu MCM 41 AND Ni MCM 41 TYPE CATALYTIC MATERIALS written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Discovery of mesoporous materials by Mobil researchers in 1992 opened a new field in catalytic applications. The materials designated as M41S family are MCM-41 with one-dimensional hexagonal structure, MCM-48 with three-dimensional cubic structure and MCM-51 with unstable lamellar structure. This family of materials have high surface areas up to 1500 m2/g, narrow pore size distributions with pore sizes varying from 20 to 100 Å. These materials can be activated by incorporation of metals or active compounds into their structures. In this study, copper and nickel incorporated MCM-41 type catalytic materials were synthesized via different methods namely, impregnation, high temperature and low temperature direct synthesis methods. The Cu-MCM-41, and Ni-MCM-41, as well as synthesized MCM-41 were characterized by using XRD, TEM, N2 sorption, SEM, XRF, EDS, AAS and TPR. MCM-41 was synthesized with high temperature direct synthesis method. High surface area values up to 1400 m2/g of MCM-41 mesoporous materials were obtained with high pore volumes up to 1.17 cc/g. Cu-MCM-41 type catalytic materials were synthesized with three different methods. Impregnation and high temperature direct synthesis methods gave better results than those of low temperature direct synthesis method. In impregnation, relatively high surface area values (730 m2/g) were obtained with Cu/Si mole ratio as high as 0.3 in the product. For the case of high temperature direct synthesis products, Cu/Si mole ratios as high as 0.26 were obtained with somewhat smaller surface areas (400 m2/g). Low temperature direct synthesis method is the least favorable method in metal loading. Ni-MCM-41 type of catalytic materials were synthesized by impregnation and high temperature direct syntheses methods. Ni incorporation by high temperature direct synthesis method gave high surface area values (560-930 m2/g) having Ni/Si mole ratios of 0.12-0.28.

Book Mesoporous Zeolites

Download or read book Mesoporous Zeolites written by Javier García-Martínez and published by John Wiley & Sons. This book was released on 2015-05-26 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authored by a top-level team of both academic and industrial researchers in the field, this is an up-to-date review of mesoporous zeolites. The leading experts cover novel preparation methods that allow for a purpose-oriented fine-tuning of zeolite properties, as well as the related materials, discussing the specific characterization methods and the applications in close relation to each individual preparation approach. The result is a self-contained treatment of the different classes of mesoporous zeolites. With its academic insights and practical relevance this is a comprehensive handbook for researchers in the field and related areas, as well as for developers from the chemical industry.

Book Sythesis and Characterization of Pt Sn MCM 41 Petroleum Reforming Catalysts

Download or read book Sythesis and Characterization of Pt Sn MCM 41 Petroleum Reforming Catalysts written by Naisheng Yao and published by . This book was released on 2002 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis Modification and Application of Mesoporous Materials Based on MCM 41

Download or read book Synthesis Modification and Application of Mesoporous Materials Based on MCM 41 written by Zeid Abdullah AL-Othman and published by . This book was released on 2006 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Findings and conclusions. The synthesized mesoporous materials possess high surface areas, large pore sizes, narrow pore size distributions, and high thermal, hydrothermal, and mechanical stabilities. The modified mesoporous materials were found to have high selectivity and capacity in the adsorption and separation of the transition and heavy metal ions in the aqueous solution. In addition, they showed great selectivity and capacity for the adsorption and separation of the radioactive materials in aqueous medium.

Book Nanomaterials for Environmental and Agricultural Sectors

Download or read book Nanomaterials for Environmental and Agricultural Sectors written by Rakesh Kumar Bachheti and published by Springer Nature. This book was released on 2023-07-21 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a complete overview of current developments in nanotechnology-based environmental remediation and sustainable agriculture practices/sectors. It will provide the use of nanotechnology in the agricultural sector such as crop production and improvement, soil fertility management along with benefits and risks of nanotechnology on ecological farming. Additionally, the book also discovers how nanotechnology is used in water, air remediation techniques and major challenges in using nanomaterials for improving water and air quality. The book can be a reference source for academicians, scientists, policymakers, students, and research scientists working in minimizing the environmental pollution and increasing agricultural production using nanoparticles.

Book Metal Oxides in Heterogeneous Catalysis

Download or read book Metal Oxides in Heterogeneous Catalysis written by Jacques C. Vedrine and published by Elsevier. This book was released on 2018-01-11 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxides in Heterogeneous Catalysis is an overview of the past, present and future of heterogeneous catalysis using metal oxides catalysts. The book presents the historical, theoretical, and practical aspects of metal oxide-based heterogeneous catalysis. Metal Oxides in Heterogeneous Catalysis deals with fundamental information on heterogeneous catalysis, including reaction mechanisms and kinetics approaches.There is also a focus on the classification of metal oxides used as catalysts, preparation methods and touches on zeolites, mesoporous materials and Metal-organic frameworks (MOFs) in catalysis. It will touch on acid or base-type reactions, selective (partial) and total oxidation reactions, and enzymatic type reactions The book also touches heavily on the biomass applications of metal oxide catalysts and environmentally related/depollution reactions such as COVs elimination, DeNOx, and DeSOx. Finally, the book also deals with future trends and prospects in metal oxide-based heterogeneous catalysis. - Presents case studies in each chapter that provide a focus on the industrial applications - Includes fundamentals, key theories and practical applications of metal oxide-based heterogeneous catalysis in one comprehensive resource - Edited, and contributed, by leading experts who provide perspectives on synthesis, characterization and applications

Book Catalytic Transformation of Renewables Olefin Bio Sourced et al

Download or read book Catalytic Transformation of Renewables Olefin Bio Sourced et al written by Nikolaos Dimitratos and published by MDPI. This book was released on 2021-08-30 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this Special Issue is to provide new contributions in the area of biomass valorization using heterogeneous catalysts and focusing specifically on the structure/activity relationships of specific and important oxidation, hydrogenation, hydrodeoxygenation and biocatalytic processes. The issue emphasizes the influence of the design and morphology of the catalyst, in terms of particle size, redox and acid-base properties and catalyst stability. Finally, mechanistic studies and examples of design and optimization of industrial processes are presented.

Book Preparation of Catalysts II

Download or read book Preparation of Catalysts II written by G. Poncelet and published by Elsevier. This book was released on 1977-12-01 with total page 777 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preparation of Catalysts II

Book The Synthesis and Study of Some Metal Catalysts Supported on Modified MCM 41

Download or read book The Synthesis and Study of Some Metal Catalysts Supported on Modified MCM 41 written by Malose Peter Mokhonoana and published by . This book was released on 2005 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: