Industrial Performance of Advanced Palladium Catalyst for Liquid Phase Selective Hydrogenation of Trace Diolefins in FCC Butenes PDF Download
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Author: Douglas M. Dolan
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Book Description
Author: Douglas M. Dolan
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Author:
Publisher:
ISBN:
Category : Palladium
Languages : en
Pages : 150
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Book Description
A series of palladium catalysts with ca. 1 wt% palladium supported on mesoporous silica with different pore sizes (MCM-41, SBA-15, and MCF) were prepared by deposition of colloidal Pd nanoparticles (Pd/X_col) and Pd(II)acetate solution (Pd/X_imp). MCM-41 and SBA-15 showed the XRD characteristic peaks indicating highly ordered hexagonal pore structure while MCF consisted of spherical cell and frame structure with average pore size of 2.7, 3.9, and 7.8 nm, respectively. Sizes of the colloidal Pd nanoparticles were about 2.3 nm. The supports pore structure did not affect the Pd particle size of Pd/X_col catalysts. For the Pd/X_imp, the Pd particle size was increased with increasing pore diameter of the supports. However, the largest Pd particle size was obtained on Pd/SBA-15_imp since the Pd particles were formed in a long cylindrical shape similar to SBA-15. The Pd/SBA-15_col exhibited the best catalyst performance in the liquid-phase selective hydrogenation of phenylacetylene under mild conditions (40 degress celsius, H2 pressure = 1-5 bar, 30 min). The appropriated pore structure and pore size of SBA-15 could provide a better encapsulation of Pd particles so that high styrene selectivity was attained at complete conversion of phenylacetylene. All the Pd/X_col catalysts exhibited no change in the catalyst activities/selectivity during the recyclability test for four cycles while the Pd/X_imp showed an increase of catalyst activity and lower styrene selectivity in some cases.
Author: Takht Ravanchi Maryam
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659779206
Category :
Languages : en
Pages : 188
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Book Description
The selective hydrogenation of multi-unsaturated hydrocarbons, especially in pyrolysis products, to corresponding mono-olefins is a widely exploited way for large-scale production of polymer-grade olefins and also upgrading of gasoline blending stocks. Thermodynamic and/or kinetic parameters could be responsible for directing the reaction network to a special product. This book deals with application of palladium-based catalysts in selective hydrogenation of alkynes and diens. It covers both fundamental and applied aspects of selective hydrogenation with special emphasis on the selectivity problem. The book is organized in rational way beginning with the electronic structure of palladium, followed by its catalytic properties, interaction with supports and transport limitations and commercial applications.
Author: Wyed Shah Abdullah Hussaini
Publisher:
ISBN:
Category : Alkynes
Languages : en
Pages : 120
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Book Description
![Liquid-phase Hydrogenation on Pd Catalyst Supported on Solvothermal-derived ZnAI [subscritp 2]O[subscript 4] PDF](https://books.google.com/books/content/images/frontcover/L0kojwEACAAJ?fife=w80-h100)
Author:
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ISBN:
Category : Alkenes
Languages : en
Pages : 216
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Book Description
The characteristics and catalytic properties of solvothermal derived ZnAI [subscritp 2]O[subscript 4] supported palladium catalysts were investigated and compared in terms of catalytic activities for liquid-phase hydrogenation of 1-hetyne, 1-heptene selectivities and catalyst deactivation to those of solvothermal derived AI[subscript 2]O[subscript3] and ZnO supported Pd catalysts. It was found that the solvothermal derived ZnAI[subscript 2]O[subscript 3], ZnO formed single crystallite. The palladium catalysts supported on solvothermal derived ZnAI[subscript 2]O[subscript 4] and ZnAI[subscript 2]O[subscript 3] calcined at higher temperature exhibited better performances than those supported on the supports calcined at lower temperatures. Moreover, it was found that Pd catalyst support on solvothermal-derived alpha alumina exhibited the higher activity than those supported on commercial one. For catalyst deactivation, Pd catalysts on the supports calcined at high temperature showed lower amount of Pd leaching.
Author: Emilia Maria Rucinska
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: P. S. Ivanov
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
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Author: Lauren F. Gilpin
Publisher:
ISBN:
Category : Hydrogenation
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Gavin Towler
Publisher: Elsevier
ISBN: 0080966608
Category : Technology & Engineering
Languages : en
Pages : 1321
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Book Description
Chemical Engineering Design, Second Edition, deals with the application of chemical engineering principles to the design of chemical processes and equipment. Revised throughout, this edition has been specifically developed for the U.S. market. It provides the latest US codes and standards, including API, ASME and ISA design codes and ANSI standards. It contains new discussions of conceptual plant design, flowsheet development, and revamp design; extended coverage of capital cost estimation, process costing, and economics; and new chapters on equipment selection, reactor design, and solids handling processes. A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data, and Excel spreadsheet calculations, plus over 150 Patent References for downloading from the companion website. Extensive instructor resources, including 1170 lecture slides and a fully worked solutions manual are available to adopting instructors. This text is designed for chemical and biochemical engineering students (senior undergraduate year, plus appropriate for capstone design courses where taken, plus graduates) and lecturers/tutors, and professionals in industry (chemical process, biochemical, pharmaceutical, petrochemical sectors). New to this edition: Revised organization into Part I: Process Design, and Part II: Plant Design. The broad themes of Part I are flowsheet development, economic analysis, safety and environmental impact and optimization. Part II contains chapters on equipment design and selection that can be used as supplements to a lecture course or as essential references for students or practicing engineers working on design projects. New discussion of conceptual plant design, flowsheet development and revamp design Significantly increased coverage of capital cost estimation, process costing and economics New chapters on equipment selection, reactor design and solids handling processes New sections on fermentation, adsorption, membrane separations, ion exchange and chromatography Increased coverage of batch processing, food, pharmaceutical and biological processes All equipment chapters in Part II revised and updated with current information Updated throughout for latest US codes and standards, including API, ASME and ISA design codes and ANSI standards Additional worked examples and homework problems The most complete and up to date coverage of equipment selection 108 realistic commercial design projects from diverse industries A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data and Excel spreadsheet calculations plus over 150 Patent References, for downloading from the companion website Extensive instructor resources: 1170 lecture slides plus fully worked solutions manual available to adopting instructors
