Catalysis of Ethanol Dehydration on Attrition-milled Alumina

Catalysis of Ethanol Dehydration on Attrition-milled Alumina PDF Author: Haneef Ahmed Bharoocha
Publisher:
ISBN:
Category : Alumina catalysts
Languages : en
Pages : 302

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Catalysis of Ethanol Dehydration on Attrition-milled Alumina

Catalysis of Ethanol Dehydration on Attrition-milled Alumina PDF Author: Haneef Ahmed Bharoocha
Publisher:
ISBN:
Category : Alumina catalysts
Languages : en
Pages : 302

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The Physical and Catalytic Properties of Attrition Milled Titanium Dioxide Doped Alumina Using Ethanol Dehydrogenation and Dehydration as the Model Reactions

The Physical and Catalytic Properties of Attrition Milled Titanium Dioxide Doped Alumina Using Ethanol Dehydrogenation and Dehydration as the Model Reactions PDF Author: George P. Partridge
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 192

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Masters Theses in the Pure and Applied Sciences

Masters Theses in the Pure and Applied Sciences PDF Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 1468436201
Category : Science
Languages : en
Pages : 306

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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 23 (thesis year 1978) a total of 10,148 theses titles from 27 Canadian and 220 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. While Volume 23 reports these submitted in 1978, on occasion, certain universities do report theses submitted in previous years but not reported at the time.

Anodic Alumina as Catalyst for the Dehydration of Ethanol

Anodic Alumina as Catalyst for the Dehydration of Ethanol PDF Author: Dinwiddie C. Reams
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Ethanol Dehydration Reaction Over Mixed Phase Alumina Catalysts

Ethanol Dehydration Reaction Over Mixed Phase Alumina Catalysts PDF Author: Tharmmanoon Inmanee
Publisher:
ISBN:
Category : Ethylene
Languages : en
Pages : 154

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Book Description
The mixed gamma and chi crystalline phase alumina catalyst prepared by the solvothermal method of the mixed solution (toluene and 1-butanol) was investigated for the effect of calcination temperatures and MoO3 modification. The catalysts were characterized by X-ray diffraction (XRD), N2 physisorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and NH3-tempearture programmed desorption (NH3-TPD). The catalytic activity was tested for ethylene production by dehydration reaction of ethanol in gas phase at atmospheric pressure and temperature between 200°C to 400°C. It was found that the calcination temperature and MoO3 loading have an effect on acidity of the catalysts. The increasing in calcination temperature resulted in decreased acidity while the MoO3 loading on the mixed phase alumina catalyst yielded increased acidity especially medium to strong acid. In this study, the catalytic activity of ethanol dehydration to ethylene apparently depends on the medium to strong acid. The mixed phase alumina catalyst calcined at 600°C (C50-600) gave the highest catalytic activity and the MoO3 modified catalysts promoted dehydrogenation reaction.

Ethanol Dehydration Over Alumina Catalysts with Phosphorus and Noble Metal Modification

Ethanol Dehydration Over Alumina Catalysts with Phosphorus and Noble Metal Modification PDF Author: Mutjalin Limlamthong
Publisher:
ISBN:
Category : Catalysts
Languages : en
Pages : 332

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Book Description
The mixture of 1:1 volume ratio of gamma and chi crystalline phase alumina support was prepared via the solvothermal technique using the mixed solution between toluene and 1-butanol. The support was brought to modify with phosphoric acid and noble metal agents. These catalysts were investigated on the effect of both phosphorus loading and types of noble metal on catalytic characteristic and catalytic activity. The catalytic performance was identified through ethanol dehydration reaction in gas phase process at 1 atm and temperature of 200oC to 400oC. The results were found that the phosphorus modification had an effect on catalytic acidity by decreasing the amount of medium to strong acid sites and raised quantity of weak acid sites. The higher amount of weak acid brought the catalysts to demonstrate the higher catalytic activity through the ethanol dehydration to diethyl ether. The mixed phase of alumina supports modified with 5 wt% of phosphorus exhibited the highest catalytic activity among other P-modified alumina catalysts giving the diethyl ether yield of 34.41%. In addition, the different types of noble metal modification were found to have a significant effect on catalytic performance. The 5P/Al2O3 catalyst deposited by palladium showed the highest catalytic activity through all of the studied catalysts reached 57.68% of diethyl ether yield. The highest average yield of diethyl ether of 42.50% was obtained from using Pd5P/Al2O3 catalyst in time on stream system for 10 h. Despite of high diethyl ether yield obtained, both 5P/Al2O3 and Pd5P/Al2O3 catalysts had the lower coke formation when compared to non-modified alumina supports.

Masters Theses in the Pure and Applied Sciences

Masters Theses in the Pure and Applied Sciences PDF Author: Wade Shafer
Publisher: Springer Science & Business Media
ISBN: 1461337003
Category : Science
Languages : en
Pages : 335

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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 26 (thesis year 1981) a total of 11 ,048 theses titles from 24 Canadian and 21 8 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 26 reports theses submitted in 1981, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.

Catalytic Dehydration of Ethyl Alcohol on Alumina

Catalytic Dehydration of Ethyl Alcohol on Alumina PDF Author: Herman J. Solomon
Publisher:
ISBN:
Category :
Languages : en
Pages : 264

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Catalytic Dehydration of T-butyl Alcohol on Alumina Using a Continuous Stirred Tank Catalytic Reactor

Catalytic Dehydration of T-butyl Alcohol on Alumina Using a Continuous Stirred Tank Catalytic Reactor PDF Author: Larry Dale Zeagler
Publisher:
ISBN:
Category : Catalysis
Languages : en
Pages : 372

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Kirk-Othmer Concise Encyclopedia of Chemical Technology, 2 Volume Set

Kirk-Othmer Concise Encyclopedia of Chemical Technology, 2 Volume Set PDF Author: Kirk-Othmer
Publisher: John Wiley & Sons
ISBN: 0470047488
Category : Science
Languages : en
Pages : 2762

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Book Description
This is an easily-accessible two-volume encyclopedia summarizing all the articles in the main volumes Kirk-Othmer Encyclopedia of Chemical Technology, Fifth Edition organized alphabetically. Written by prominent scholars from industry, academia, and research institutions, the Encyclopedia presents a wide scope of articles on chemical substances, properties, manufacturing, and uses; on industrial processes, unit operations in chemical engineering; and on fundamentals and scientific subjects related to the field.