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Upgrading Fischer-Tropsch LPG (Liquefied Petroleum Gas) With the Cyclar Process - 1989

Gregor, J.H.
Gosling, C.D.
Fullerton, H.E.

UOP, Inc.

Table of Contents 434kb

  List of Tables vi
List of Figures ix
List of Appendices xii
Abstract xiii
Section 1
628kb

1.0

Introduction 1-1
 

1.1 

Product Distribution from F-T Reactors 1-1

1.2

New Technologies Applied to Light-Ends Upgrading 1-2
 

1.2.1

LPG to Aromatics via the Cyclar Process 1-3

1.2.2

Naphtha Upgrading via New Reforming Technologies 1-3

1.3

Task Descriptions 1-3
 

1.3.1

Task 1.0 Project Work Plan 1-4

1.3.2

Task 2.0 Feedstock Procurement and Analysis 1-4

1.3.3

Task 3.0 Feedstock Preparation 1-4

1.3.4

Task 4.0 Cyclar Processing Study 1-5

1.3.5

Task 5.0 Light Paraffin Conversion Study 1-5

1.3.6

Task 6.0 Low-Pressure Platforming Process Study 1-5

1.3.7

Task 7.0 Economic Evaluation 1-6

2.0

Process Descriptions 2-1
 

2.1

Huels CSP Process Description 2-1

2.2

Cyclar Process Description 2-2
  2.2.1 History of the Cyclar Process 2-2
2.2.2 Cyclar Process Chemistry 2-3
2.2.3 Cyclar Process Flow 2-4

3.0

Pilot plant Descriptions 3-1
 

3.1

Huels CSP Pilot Plant 3-1

3.2

Cyclar Pilot Plant 3-1
Section 2
295kb

4.0

Feedstocks 4-1
 

4.1

Huels CSP Feedstocks 4-1

4.2

Pure Component Cyclar Feedstocks 4-2

4.3

Direct Cyclar Feedstocks 4-2

4.4

Indirect Cyclar Feedstock 4-3

5.0

Huels CSP Pilot Plant Work 5-1
 

5.1

Huels CSP Process Variable Study 5-1

5.2

Huels CSP Pentene Conversion Study 5-2

5.3

Conclusions of Huels CSP Pilot Plant Testing 5-2
Section 3
1253kb

6.0

Cyclar Pilot Plant Work 6-1
 

6.1

Catalyst 6-1

6.2

Interpretation of Pilot Plant Data 6-1
 

6.2.1

Pilot Plant Test Methodology 6-2

6.2.2

Evaluation of Results 6-3

6.3

Pure Component Pilot Plant Work 6-5
 

6.3.1

Propane Feedstock at Base-Case Conditions (Run 1) 6-5

6.3.2

Butane Feedstock at Base-Case Conditions (Run 9) 6-6

6.3.3

Pressure Increase with Pure Component Feeds (Runs 8 and 10) 6-6

6.3.4

Pure Olefin Feeds 6-7
 

6.3.4.1

Propylene Feed (Run 11) 6-7

6.3.4.2

Butene Feed (Run 12) 6-8

6.4

Direct Cyclar Pilot Plant Study 6-9
 

6.4.1

Direct Cyclar at Base Conditions (Run 3) 6-9

6.4.2

Direct Cyclar Pressure Study (Runs 3, 5 and 6) 6-10

6.4.3

Pressure Study at Reduced Temperature (Runs 2, 4, and 7) 6-10

6.4.4

Variation in Feedstock Olefinicity (Runs 6, 17, and 18) 6-11

6.4.5

Direct Cyclar Spent-Catalyst Coke Levels 6-12

6.5

Indirect Cyclar Pilot Plant Study 6-12
 

6.5.1

LHSV Effect at P1 (Runs 13 and 14) 6-13

6.5.2

LHSV Effect at P3 (Runs 15 and 16) 6-13

6.5.3

Pressure Effect at LHSV 2 (Runs 14 and 15) 6-13

6.6

Conclusions 6-14
 

6.6.1

Butane vs. Propane 6-14

6.6.2

Paraffins vs. Olefins 6-14

6.6.3

Effect of Pressure 6-15

6.6.4

Direct Cyclar Conclusions 6-15

6.6.5

Indirect Cyclar Conclusions 6-16
Section 4
860kb

7.0

Commercial Estimates 7-1
 

7.1

Feedstock Definitions 7-1

7.2

Commercial Yield Estimates 7-2
 

7.2.1

Huels CSP Commercial Yield Estimates 7-3

7.2.2

Cyclar Commercial Yield Estimates 7-3
 

7.2.2.1

Indirect Cyclar Commercial Yield Estimates 7-3

7.2.2.2

Direct Cyclar Commercial Yield Estimates 7-4

7.2.2.3

Direct vs. Indirect Cyclar Yield Estimates 7-4
Section 5
866kb

8.0

Economic Evaluation 8-1
 

8.1

Evaluation Procedure 8-1
 

8.1.1

Evaluation Technique 8-1

8.1.2

Price and Cost Basis for Economic Evaluation 8-2

8.1.3

Fuel Gas Production and Consumption 8-3

8.1.4

Treatment of Offsites 8-4

8.2

Capital Cost and Net Operating Profit Calculations 8-5
 

8.2.1

Capital Expenditure 8-5

8.2.2

Gross Margin 8-6

8.2.3

Operating Cost 8-7
 

8.2.3.1

Catalyst and Chemicals 8-7

8.2.3.2

Utilities 8-7

8.2.3.3

Labor 8-8

8.2.3.4

Maintenance 8-8

8.2.3.5

Taxes and Insurance 8-8

8.3

IRR Calculations 8-8
 

8.3.1

Income Tax Considerations 8-8

8.3.2

Summary of IRR Results 8-9

8.4

Discussion of Results 8-9
 

8.4.1

Indirect Cyclar -- Impact of Feed Olefinicity on IRR 8-10

8.4.2

Direct Cyclar--Impact of Feed Olefinicity on IRR 8-10

8.5

Sensitivity Cases 8-11
 

8.5.1

LPG Feed Cost 8-11

8.5.2

Aromatics Product Value 8-12

8.5.3

Hydrogen Coproduct Value 8-12

8.6

Conclusions 8-12
Section 6
154kb

9.0

Conclusions 9-1
 

9.1

Direct vs. Indirect Cyclar 9-1

9.2

General Conclusion 9-2
10.0  Acknowledgements 10-1
11.0  References 11-1
12.0  List of Abbreviations 12-1
Appendix 1589kb