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Gas Dehydration Field Manual
- 1st Edition - July 13, 2011
- Authors: Maurice Stewart, Ken Arnold
- Language: English
- Paperback ISBN:9 7 8 - 1 - 8 5 6 1 7 - 9 8 0 - 5
- eBook ISBN:9 7 8 - 1 - 8 5 6 1 7 - 9 8 1 - 2
Gas Dehydration Field Manual presents different methods of gas dehydration, focusing on the differences between adsorption and absorption. It discusses the various designs and… Read more
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Request a sales quoteGas Dehydration Field Manual presents different methods of gas dehydration, focusing on the differences between adsorption and absorption. It discusses the various designs and operations in a gas processing facility. As an introduction, the book provides different concepts and theories that describe the gas processing industry. It then discusses the processes involved in the gas processing industry, which include absorption, adsorption, glycol regeneration, glycol filtration, and carbon purification. The book is divided into three parts. The first part discusses some of the basic terms and concepts of gas dehydration. The second part focuses on the factors involved in the different gas-dehydration methods. It also describes the difference between absorption and adsorption, as well as the process involved in glycol dehydration. The last part of the book discusses the proper care, maintenance, and troubleshooting methods of glycol dehydration process. This book is mainly designed for engineers, technologists, and operating personnel in the gas processing industry. Aside from engineers and process designers, readers who are interested in the different processes involved in gas dehydration will find this book a useful guide and reference.
- Include hydrate prevention, chemical injection systems, hydrate inhibitor methods
- Condensation process, Glycol Regeneration and Molecular Sieves
- An appendix provides the reader with additional exercises and solutions
Production engineers, reservoir engineers, chemical engineers, petroleum engineers, pipeline engineers, and any engineers working with the production, transportation, or drilling of natural gas
Part 1 Hydrate Prediction and Prevention Objectives Overview Dew Point Dew Point Depression Why Dehydrate? Water Content of Gas Introduction Partial Pressure and Fugacity Empirical Plots Sour Gas Correlations Effect of Nitrogen and Heavy Ends Example 1-1: Calculation of Water Content in a Sour Gas Stream Applications Amount of Water Condensed Gas Hydrates What Are Gas Hydrates? Why Is Hydrate Control Necessary? What Conditions Are Necessary to Promote Hydrate Formation? How Do We Prevent or Control Hydrates? Prediction of Operating Temperature and Pressure Wellhead Conditions Flowline Conditions Calculation of Temperature and Pressure at the Wellhead Calculation of Flowline Downstream Temperature Temperature Drop Determination Overview Temperature Drop Correlation Example 1-2: Determine the Temperature Drop across a Choke Hydrate Prediction Correlations Overview Vapor-Solid Equilibrium Constants Pressure-Temperature Curves Equations of State Calculations Vapor-Solid Equilibrium Constants Example 1-3: Determination of Hydrate Formation Temperature Using Vapor-Solid Constants Pressure-Temperature Curves Example 1-4: Determine the Hydrate Formation Temperature Using Pressure-Temperature Correlations Hydrate Prevention Overview Adding Heat Temperature Control Chemical Injection Comparison of Hydrate Prevention Methods Summary of Hydrate Prevention Methods Hydrate Inhibition Hammerschmidt Equation Determination of Total Inhibitor Required Procedure for Determining Inhibitor Requirements Example 1-5: Determining the Amount of Methanol Required in a Wet Gas Stream ExercisesPart 2 Dehydration Considerations Overview Adsorption Process Overview Principles of Adsorption Process Reversal Mass Transfer Zone (MTZ) Principles of Operation Effect of Process Variables Example 2-1: Determination of Pressure Drop through a Dry Bed Desiccant Dehydration Tower Equipment Inlet Gas Cleaning Equipment Adsorber Tower Insufficient Gas Distribution Inadequate Insulation Improper Bed Supports Pressurization Regeneration Gas Exchangers, Heaters, and Coolers Regeneration Gas Separator Control Valves Expander Plant Molecular Sieve Applications Desiccant Performance General Conditions Moisture Analyzer Effect of Contaminants in Inlet Feed Stream Effect of Regeneration Gases Rich in Heavy Hydrocarbons Effect of Methanol in the Inlet Gas Stream Useful Life Effect of Insufficient Reactivation Effect of High Reactivation Temperature Areas Requiring Engineering Attention Example 2-2: Preliminary Solid Bed Desiccant Design Absorption Process Overview Principles of Absorption Glycol Dehydration Principles of Operation Gas System Glycol System Effect of Operating Variables System Design Sizing Considerations Inlet Microfiber Filter Separator Glycol Gas Contactor Contactor Diameter Tray Design Tray Spacing Glycol Circulation Rate Lean Glycol Concentration Glycol-Glycol Preheater Glycol-Gas Cooler Glycol-Glycol Heat Exchanger Gas-Glycol-Condensate Separator Reconcentrator Heat Duty Fire Tube Sizing Reflux Condenser Stripping Still Column Diameter Size Packing Amount of Stripping Gas Filters Glycol Pumps Still Emissions Mercury Considerations Mercury Treatment Special Glycol Dehydration Systems General Considerations Drizo (wt.-2) Process Cold Finger Condenser Process Systems Utilizing Glycol-Gas Powered Pumps Systems Utilizing Electric Driven Pumps Example 2-3: Glycol Dehydration Nonregenerable Dehydrator Nonregenerable Dehydrator Overview Calcium Chloride Unit Physical Properties of Common GlycolsPart 3 Glycol Maintenance, Care, and Troubleshooting Preventive Maintenance Scheduled Preventive Maintenance Five Steps to a Successful Preventive Maintenance Program Record-Keeping Mechanical Maintenance Glycol Care Corrosion Control Communication General Considerations Oxidation Thermal Decomposition pH Control Salt Contamination Hydrocarbons Sludge Foaming Analysis and Control of Glycol General Considerations Visual Inspection Chemical Analysis Chemical Analysis Interpretation Troubleshooting General Considerations High Dew Points Glycol Loss from the Contactor Glycol Loss from the Reconcentrator Glycol Loss—Glycol Hydrocarbon Separator Glycol Loss—Miscellaneous Three-Step Approach to Troubleshooting Glycol System Cleaning Eliminating Operating Problems General Considerations Inlet Scrubber/Microfiber Filter Separator Absorber Glycol-Gas Heat Exchanger Lean Glycol Storage Tank or Accumulator Stripper or Still Column Improving Glycol Filtration General Considerations Use of Carbon Purification General ConsiderationsReferencesIndex
- No. of pages: 260
- Language: English
- Edition: 1
- Published: July 13, 2011
- Imprint: Gulf Professional Publishing
- Paperback ISBN: 9781856179805
- eBook ISBN: 9781856179812
MS
Maurice Stewart
Dr. Maurice Stewart, PE, a Registered Professional Engineer with over 40 years international consulting experience in project management; designing, selecting, specifying, installing, operating, optimizing, retrofitting and troubleshooting oil, water and gas handling, conditioning and processing facilities; designing plant piping and pipeline systems, heat exchangers, pressure vessels, process equipment, and pumping and compression systems; and leading hazards analysis reviews and risk assessments.
Affiliations and expertise
President, Stewart Training Company, USAKA
Ken Arnold
Ken Arnold was President of K. Arnold Consulting, Inc., providing expert consulting services to the oil and gas industry covering surface engineering, project management, and project development. Ken retired from the industry in 2022. Previously, he was Senior Technical Advisor for Worley Parsons and CEO of Paragon Engineering Services, now owned by Wood Group. Ken earned a BSCE in civil engineering from Cornell University and a MS in civil engineering from Tulane University.
Affiliations and expertise
Ken Arnold Consulting Inc.Read Gas Dehydration Field Manual on ScienceDirect