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Dehydration of Isobutanol to Isobutene in a Slurry Reactor - 1994

Latshaw, Bruce E.

Air Products and Chemicals, Inc.

Table of Contents

Report

List of Tables ii
List of Figures iii
Introduction 1
Objectives 2
Summary and Conclusions 2
Patent Situation 3
Safety 3
Regulatory Matters 3
Future Programs 3
Acknowledgments 4

1

Literature Review 4

2

Thermodynamics of Isobutanol Dehydration to Isobutene 5

3

Experimental 6

4

Results and Discussion 6
 

4.1

Catalyst Screening 6
  4.1.1 Temperature 7
4.1.2 Pressure 8
4.1.3 Gas Hourly Space Velocity 9
4.1.4 Alcohol Concentration 10
4.1.5 Comparison of the Alumina Dehydration Catalysts 11

4.2

Controlling Isobutene Yields 12
  4.2.1 Catalyst Impurities 12
4.2.2 Catalyst Doping for Enhanced Isobutene Selectivity 12
4.2.3 Effect of Feed Composition on the Product Spectrum 14

4.3

Development of Kinetics for the Dehydration of Isobutanol 15
  4.3.1 Mass Transfer or Kinetic Limitations 15
4.3.2 Effect of Water on the Dehydration of Isobutanol 16
4.3.3 Development of a Power Law Rate Expression 16
References 17
Figures
Tables
Appendices:

I

Literature Survey
II Thermodynamic Calculations
III Analytical System
IV Experimental Data