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Author : Arash Mirjalili
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.:/5 (1 download)
Download or read book Selective Hydrogenation of Acetylene Over Modified Palladium Catalysts written by Arash Mirjalili and published by . This book was released on 2016 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 310 pages
Book Rating : 4.:/5 (921 download)
Download or read book Selective Hydrogenation of Actylene in Ethylene Streams Using Ligand Modified Palladium on Titania written by and published by . This book was released on 2010 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance of supported palladium catalysts that had been modified with triphenyl phosphine, diphenyl sulfide and triphenyl amine was compared to unmodified Pd/TiO2 catalysts. It was found that the selectivity was superior to the unmodified catalysts with or without the use of carbon monoxide as a modifier. Ethylene selectivities in excess of 70 % at conversion levels greater than 80% were observed on the modified catalysts under conditions of excess hydrogen which compares extremely well with other catalysts found in the literature. The modifier was found to significantly reduce the number of high energy sites on the surface on the palladium, thereby significantly hindering ethylene hydrogenation but not affecting acetylene hydrogenation. The simple preparation of these catalysts together with the simplicity added by not having to use carbon monoxide or limited hydrogen promises a viable alternative strategy for commercial catalysis.
Author : Ruijun Hou
Publisher : Springer
ISBN 13 : 981100773X
Total Pages : 151 pages
Book Rating : 4.8/5 (11 download)
Download or read book Catalytic and Process Study of the Selective Hydrogenation of Acetylene and 1,3-Butadiene written by Ruijun Hou and published by Springer. This book was released on 2017-01-05 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis offers novel methods for catalyst and process design for the selective hydrogenation of acetylene and 1,3-butadiene. The author predicts the properties of supported Pd–Ni bimetallic catalysts using density functional theory (DFT) calculations and temperature-programmed desorption (TPD). The excellent correlation between model surfaces and supported catalysts demonstrates the feasibility of designing effective bimetallic catalysts for selective hydrogenation reactions. The author also proposes a method for designing non-precious metal catalysts to replace precious metals. She modifies the process of selective hydrogenation of acetylene by coupling the selective adsorption to the selective hydrogenation in the liquid phase, as a result of which the ethylene selectivity is greatly improved and heat transfer is greatly enhanced. Lastly, by analyzing the mechanism of liquid-phase hydrogenation, the author proposes a multi-stage slurry bed reactor for industrial applications.“/p>
Author : Albert F. Carley
Publisher : Springer Science & Business Media
ISBN 13 : 9780306473937
Total Pages : 404 pages
Book Rating : 4.4/5 (739 download)
Download or read book Surface Chemistry and Catalysis written by Albert F. Carley and published by Springer Science & Business Media. This book was released on 2002-09-30 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exciting results are still emerging from the many research groups working in this fertile area and the book is an excellent stimulus to researchers at the start of the 21st century."--BOOK JACKET.
Author : James Arthur Anderson
Publisher : World Scientific
ISBN 13 : 184816677X
Total Pages : 581 pages
Book Rating : 4.8/5 (481 download)
Download or read book Supported Metals in Catalysis written by James Arthur Anderson and published by World Scientific. This book was released on 2012 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from experts in supported metal catalysis, from both the industry and academia, this book presents the latest developments in characterization and application of supported metals in heterogeneous catalysis. In addition to a thorough and updated coverage of the traditional aspects of heterogeneous catalysis such as preparation, characterization and use in well-established technologies such as Naphtha reforming, the book also includes emerging areas where supported metal catalysis will make significant contributions in future developments, such as fuel cells and fine chemicals synthesis. The second edition of Supported Metals in Catalysis comes complete with new and updated chapters containing important summaries of research in a rapidly evolving field. Very few other books deal with this highly pertinent subject matter, and as such, it is a must-have for anyone working in the field of heterogeneous catalysis.
Author :
Publisher :
ISBN 13 : 9789745313880
Total Pages : pages
Book Rating : 4.3/5 (138 download)
Download or read book Selective Hydrogenation of Acetylene on Palladium Catalysts Supported on Solvothermal-derived Titanium Dioxide written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fiona-Mairead Mckenna
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)
Download or read book Selective Hydrogenation of Acetylene in Ethylene Streams Using Ligand Modified Palladium on Titania written by Fiona-Mairead Mckenna and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Junyi He
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (19 download)
Download or read book Investigation of Ceria Supported Palladium Catalysts for Selective Hydrogenation of Acetylene in Ethylene written by Junyi He and published by . This book was released on 2017 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yeung Ho Park
Publisher :
ISBN 13 :
Total Pages : 410 pages
Book Rating : 4.:/5 (285 download)
Download or read book A Study on the Effects of Additives on Selective Hydrogenation of Trace Acetylene Over Palladium Catalysts written by Yeung Ho Park and published by . This book was released on 1991 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ying Ji
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.:/5 (711 download)
Download or read book Selective Hydrogenation of Acetylene in the Presence of Ethylene Over Supported Pd and Pd-Mg Catalysts written by Ying Ji and published by . This book was released on 2009 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tengteng Lyu
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (113 download)
Download or read book Investigation of Palladium-ceria Catalysts for Selective Hydrogenation of Acetylene in Ethylene written by Tengteng Lyu and published by . This book was released on 2018 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ting Zhou
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (835 download)
Download or read book Selective Hydrogenation of Acetylene Over Palladium on Ionic Liquid Loaded Silica Support written by Ting Zhou and published by . This book was released on 2012 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stephen Claude LeViness
Publisher :
ISBN 13 :
Total Pages : 500 pages
Book Rating : 4.:/5 (113 download)
Download or read book The Selective Hydrogenation of Acetylene Over Pd and Pd-Cu on Alumina Catalysts written by Stephen Claude LeViness and published by . This book was released on 1984 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Walter Plante
Publisher :
ISBN 13 :
Total Pages : 268 pages
Book Rating : 4.:/5 (163 download)
Download or read book Catalyst Deactivation in the Selective Hydrogenation of Acetylene Over Supported Pd Catalyst written by Walter Plante and published by . This book was released on 1987 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (921 download)
Download or read book Liquid-phase Selective Hydrogenation of Phenylacetylene on Palladium Nanoparticles Supported on Mesoporous Silica written by and published by . This book was released on 2009 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Michael Walker
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (875 download)
Download or read book Selective Hydrogenation of Acetylene Over Pd, Au, and PdAu Supported Nanoparticles written by Michael Walker and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The removal of trace amounts of acetylene in ethylene streams is a high-volume industrial process that must possess high selectivity of alkyne hydrogenation over hydrogenation of alkenes. Current technology uses metallic nanoparticles, typically palladium or platinum, for acetylene removal. However, problems arise due to the deactivation of the catalysts at high temperatures as well as low selectivities at high conversions. Pore expanded MCM-41 is synthesized via a two-step strategy in which MCM-41 was prepared via cetyltrimethylammonium bromide (CTMABr) followed by the hydrothermal treatment with N,N-dimethyldecylamine (DMDA). This material was washed with ethanol to remove DMDA, or calcined to remove both surfactants. PE-MCM-41 based materials were impregnated with palladium, gold, and palladium-gold nanoparticles. The removal of DMDA had an effect on both the conversion and selectivity, in which they were found to drop significantly. However, by using the bimetallic PdAu catalysts, higher selectivity could be achieved due to increased electron density.
Author : Vinayan Nair
Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.:/5 (15 download)
Download or read book Selective Hydrogenation of Trace Acetylene in Ethylene Over Pd-Cu Alumina Catalysts written by Vinayan Nair and published by . This book was released on 1983 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
