One-step synthesis of dimethyl ether using microreactors:
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Published: |
Aachen
Shaker
2014
|
| Series: | Berichte aus der Verfahrenstechnik
|
| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Physical Description: | XIII, 140 S. Ill., graph. Darst. |
| ISBN: | 9783844025828 |
Staff View
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| 245 | 1 | 0 | |a One-step synthesis of dimethyl ether using microreactors |c Silvia Tauro |
| 264 | 1 | |a Aachen |b Shaker |c 2014 | |
| 300 | |a XIII, 140 S. |b Ill., graph. Darst. | ||
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| 490 | 0 | |a Berichte aus der Verfahrenstechnik | |
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| 650 | 0 | 7 | |a Katalysator |0 (DE-588)4029919-3 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Reaktionstechnik |0 (DE-588)4136173-8 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Mikroreaktor |0 (DE-588)4786310-9 |2 gnd |9 rswk-swf |
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Record in the Search Index
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|---|---|
| adam_text | CONTENTS
ACKNOWLEDGMENTS III
ZUSAMMENFASSUNG V
ABSTRACT IX
1. INTRODUCTION 1
1.1. MOTIVATION 1
1.2. OBJECTIVES AND TASKS 3
1.3. OVERVIEW OF THE THESIS 4
2. BACKGROUND AND STATE OF THE ART 5
2.1. DME PROPERTIES AND APPLICATIONS 5
2.2. DME SYNTHESIS TECHNOLOGIES 8
2.2.1. INDIRECT PROCESS 9
2.2.1.1. METHANOL SYNTHESIS 9
2.2.1.2. METHANOL DEHYDRATION 12
2.2.2. DIRECT PROCESS 13
2.3. CATALYSTS 15
2.3.1. METHANOL SYNTHESIS CATALYST (MSC) 15
2.3.2. METHANOL DEHYDRATION CATALYST (MDC) 16
2.3.3. CATALYST STABILITY 17
2.4. KINETIC AND THERMODYNAMIC CONSIDERATIONS 18
2.5. SYNTHESIS GAS 19
2.6. DME MARKET 21
2.7. REACTOR DESIGN 22
2.8. MICROSTRUCTURED REACTORS 24
2.8.1. CATALYST ARRANGEMENT IN MICROSTRUCTURES 25
2.8.2. MICROSTRUCTURE FABRICATION 27
2.8.3. POTENTIAL FOR DIRECT DME SYNTHESIS 28
3. MATERIALS AND METHODS 31
3.1. SETUP DESIGN 31
3.2. MEASUREMENT AUTOMATION 33
HTTP://D-NB.INFO/1047076357
XII CONTENTS
3.3. ANALYTICS 35
3.3.1. GAS CHROMATOGRAPHY 35
3.3.2. DETERMINATION OF THE VOLUME CONTRACTION 37
3.3.2.1. INTERNAL STANDARD 37
3.3.2.2. CARBON, OXYGEN AND HYDROGEN BALANCES 37
3.3.2.3. ERROR ESTIMATION 38
3.4. CATALYST ACTIVATION 39
3.5. REACTION PERFORMANCE 39
3.6. REACTORS 40
3.6.1. MICROSTRUCTURED REACTOR I (EXCHANGEABLE PLATE DESIGN) 40
3.6.2. MICROSTRUCTURED REACTOR II (DIFFUSION BONDED DESIGN) 43
3.6.3. TUBULAR FIXED-BED REACTOR 44
3.7. CATALYSTS 45
3.7.1. CU0/ZN0/AL203 SYNTHESIS 45
3.7.2. ZEOLITE SYNTHESIS 46
3.7.3. BIFUNCTIONAL CATALYSTS 46
3.7.3.1. POWDER MIXTURES 47
3.7.3.2. CATALYST COATINGS 47
3.7.4. CHARACTERIZATION TECHNIQUES 47
3.7.4.1. N2 PHYSISORPTION 48
3.7.4.2. SCANNING ELECTRON MICROSCOPY (SEM) 48
3.7.4.3. COULTER COUNTER 48
3.7.4.4. ATOMIC ABSORPTION SPECTROSCOPY (AAS) 49
3.7.4.5. AMMONIA TEMPERATURE PROGRAMMED DESORPTION (TPD) . . 49
3.7.4.6. X-RAY DIFFRACTION 49
3.7.4.7. TEMPERATURE PROGRAMMED REDUCTION (TPR,) 49
3.7.4.8. PULSE TITRATION 49
3.7.4.9. ELECTRON PROBE MICRO ANALYSIS (EPMA) 50
4. REACTOR MODELING AND REACTION KINETICS 51
4.1. CHARACTERIZATION OF THE REACTION SYSTEM 52
4.1.1. EXTERNAL TRANSPORT 53
4.1.2. INTRAPARTICLE TRANSPORT 55
4.1.3. CATALYST BED GRADIENTS 58
4.2. MODEL I: IDEAL PLUG FLOW 59
4.3. MODEL II: A FRACTION OF THE REACTOR FEED BYPASSES THE CATALYST BED
60
4.4. KINETICS OF THE ONE-STEP DME SYNTHESIS 61
4.4.1. OPTIMIZATION PROCEDURE 61
4.4.2. PARAMETER TRANSFORMATION 63
4.4.3. IMPLEMENTATION OF THE OPTIMIZATION PROCEDURE IN MATLAB 64
4.4.4. KINETIC MODELS 67
4.4.5. REACTION CONDITIONS AND OPTIMIZATION PROCEDURE 69
4.4.5.1. OPTIMIZATION AND KINETIC MODEL COMPARISON 70
XII
CONTENTS XIII
5. CATALYST SCREENING AND CHARACTERIZATION 77
5.1. ACIDIC CATALYST VARIATION 78
5.1.1. ACIDIC CATALYST PERFORMANCE 80
5.2. METALLIC CATALYST VARIATION 83
5.2.1. METALLIC CATALYST PERFORMANCE 84
6. EXPERIMENTAL PERFORMANCE OF THE DIRECT DME SYNTHESIS 87
6.1. EFFECT OF THE SYNTHESIS CONDITIONS 87
6.1.1. CONTACT TIME 88
6.1.2. TEMPERATURE 89
6.1.3. PRESSURE 91
6.1.4. SYNTHESIS MIXTURE 93
6.1.5. CATALYST COMPOSITION 94
6.2. PERFORMANCE OF THE MICROSTRUCTURED REACTOR I 96
6.2.1. MICRO FIXED-BED 96
6.2.1.1. REACTOR PERFORMANCE 97
6.2.2. MICROCHANNELS WITH CATALYST COATINGS 102
6.2.2.1. CATALYST PARTICLE DIAMETER 103
6.2.2.2. COATING SUSPENSIONS 104
6.2.2.3. COATING PROCEDURE AND CHARACTERIZATION 105
6.3. MICROSTRUCTURED REACTOR II VS FIXED-BED REACTOR 107
6.3.1. TEMPERATURE PROFILES 107
6.3.2. PRESSURE DROP ILL
6.3.3. CONVERSION AND SELECTIVITY 113
7. CONCLUSION AND OUTLOOK 117
BIBLIOGRAPHY 121
APPENDIX 135
A. SUBSCRIPTS 135
B. LIST OF ABBREVIATIONS 136
C. LIST OF SYMBOLS 137
D. GREEK SYMBOLS 138
E. EXPERIMENTAL DATA 138
F. CURRICULUM VITAE 140
XIII
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| any_adam_object | 1 |
| author | Tauro, Silvia 1984- |
| author_GND | (DE-588)1048737160 |
| author_facet | Tauro, Silvia 1984- |
| author_role | aut |
| author_sort | Tauro, Silvia 1984- |
| author_variant | s t st |
| building | Verbundindex |
| bvnumber | BV042025745 |
| ctrlnum | (OCoLC)876199117 (DE-599)DNB1047076357 |
| dewey-full | 661.84 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 661 - Technology of industrial chemicals |
| dewey-raw | 661.84 |
| dewey-search | 661.84 |
| dewey-sort | 3661.84 |
| dewey-tens | 660 - Chemical engineering |
| discipline | Chemie / Pharmazie |
| format | Thesis Book |
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| id | DE-604.BV042025745 |
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| indexdate | 2024-07-10T01:10:50Z |
| institution | BVB |
| isbn | 9783844025828 |
| language | English |
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| physical | XIII, 140 S. Ill., graph. Darst. |
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| series2 | Berichte aus der Verfahrenstechnik |
| spelling | Tauro, Silvia 1984- Verfasser (DE-588)1048737160 aut One-step synthesis of dimethyl ether using microreactors Silvia Tauro Aachen Shaker 2014 XIII, 140 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Berichte aus der Verfahrenstechnik Zugl.: Karlsruhe, Karlsruher Inst. für Technologie, Diss., 2013 Auswahl (DE-588)4214540-5 gnd rswk-swf Chemische Synthese (DE-588)4133806-6 gnd rswk-swf Katalyse (DE-588)4029921-1 gnd rswk-swf Dimethylether (DE-588)4271192-7 gnd rswk-swf Katalysator (DE-588)4029919-3 gnd rswk-swf Reaktionstechnik (DE-588)4136173-8 gnd rswk-swf Mikroreaktor (DE-588)4786310-9 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Dimethylether (DE-588)4271192-7 s Chemische Synthese (DE-588)4133806-6 s Katalyse (DE-588)4029921-1 s Katalysator (DE-588)4029919-3 s Auswahl (DE-588)4214540-5 s Reaktionstechnik (DE-588)4136173-8 s Mikroreaktor (DE-588)4786310-9 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027467308&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Tauro, Silvia 1984- One-step synthesis of dimethyl ether using microreactors Auswahl (DE-588)4214540-5 gnd Chemische Synthese (DE-588)4133806-6 gnd Katalyse (DE-588)4029921-1 gnd Dimethylether (DE-588)4271192-7 gnd Katalysator (DE-588)4029919-3 gnd Reaktionstechnik (DE-588)4136173-8 gnd Mikroreaktor (DE-588)4786310-9 gnd |
| subject_GND | (DE-588)4214540-5 (DE-588)4133806-6 (DE-588)4029921-1 (DE-588)4271192-7 (DE-588)4029919-3 (DE-588)4136173-8 (DE-588)4786310-9 (DE-588)4113937-9 |
| title | One-step synthesis of dimethyl ether using microreactors |
| title_auth | One-step synthesis of dimethyl ether using microreactors |
| title_exact_search | One-step synthesis of dimethyl ether using microreactors |
| title_full | One-step synthesis of dimethyl ether using microreactors Silvia Tauro |
| title_fullStr | One-step synthesis of dimethyl ether using microreactors Silvia Tauro |
| title_full_unstemmed | One-step synthesis of dimethyl ether using microreactors Silvia Tauro |
| title_short | One-step synthesis of dimethyl ether using microreactors |
| title_sort | one step synthesis of dimethyl ether using microreactors |
| topic | Auswahl (DE-588)4214540-5 gnd Chemische Synthese (DE-588)4133806-6 gnd Katalyse (DE-588)4029921-1 gnd Dimethylether (DE-588)4271192-7 gnd Katalysator (DE-588)4029919-3 gnd Reaktionstechnik (DE-588)4136173-8 gnd Mikroreaktor (DE-588)4786310-9 gnd |
| topic_facet | Auswahl Chemische Synthese Katalyse Dimethylether Katalysator Reaktionstechnik Mikroreaktor Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027467308&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT taurosilvia onestepsynthesisofdimethyletherusingmicroreactors |