Monoethylene glycol as hydrate inhibitor in offshore natural gas processing : from fundamentals to energy analysis

Description

This book addresses several issues related to hydrate inhibition and monoethylene glycol (MEG) recovery units (MRUs) in offshore natural gas fields, from fundamentals to engineering aspects and from energy consumption assessment to advanced topics such as exergy analysis. The assessment of energy degradation in MRUs is critical in offshore rigs, and the topic of exergy theory has by no means been completely explored; it is still being developed. The book presents a comprehensive, yet concise, formulation for exergy flow and examines different approaches for the reference state of MEG and definition of the reference environment so as to obtain an effective exergy analysis with consistent results. It also provides new and useful information that has a great potential in the field of exergy analysis application by assessing energy degradation for three well-known MRU technologies on offshore rigs: the Traditional Atmospheric Distillation Process; the Full-Stream Process; and the Slip-Stream Process. The book then elucidates how the main design parameters impact the efficiency of MEG recovery units and offers insights into thermodynamic efficiency based on case studies of general distillation-based processes with sharp or not too sharp cut, providing ranges for expected values of efficiencies and enhancing a global comprehension of this subject. Since MEG recovery is an energy consuming process that invariably has to be conducted in a limited space and with limited power supply, the book is a valuable resource for those involved in design, engineering, economic evaluation and environmental evaluation of topside processing on offshore platforms for natural gas production. Front Matter ....Pages i-xvi Introduction (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 1-6 Hydrate Formation and Inhibition in Offshore Natural Gas Processing (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 7-13 MEG Loops in Offshore Natural Gas Fields (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 15-18 Thermodynamics of Glycol Systems (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 19-24 MRU Processes (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 25-30 Energy Consumption and CO2 Emission of MRU Processes (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 31-39 Thermodynamic Efficiency of Steady State Operations of MRUs (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 41-74 Exergy Analysis of Chemical Processes (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 75-82 Exergy Analysis of MRU Processes in Offshore Platforms (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 83-96 Influence of Design Parameters on Exergy Efficiencies of MRU Processes (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 97-100 Energy Performance Versus Exergy Performance of MRU Processes (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 101-105 Concluding Remarks (Alexandre Mendonça Teixeira, Lara de Oliveira Arinelli, José Luiz de Medeiros, Ofélia de Queiroz Fernandes Araújo)....Pages 107-109 Back Matter ....Pages 111-114