Author: Alec Groysman
Publisher: Springer
ISBN: 3319452568
Category : Technology & Engineering
Languages : en
Pages : 369
Book Description
This book addresses corrosion problems and their solutions at facilities in the oil refining and petrochemical industry, including cooling water and boiler feed water units. Further, it describes and analyzes corrosion control actions, corrosion monitoring, and corrosion management. Corrosion problems are a perennial issue in the oil refining and petrochemical industry, as they lead to a deterioration of the functional properties of metallic equipment and harm the environment – both of which need to be protected for the sake of current and future generations. Accordingly, this book examines and analyzes typical and atypical corrosion failure cases and their prevention at refineries and petrochemical facilities, including problems with: pipelines, tanks, furnaces, distillation columns, absorbers, heat exchangers, and pumps. In addition, it describes naphthenic acid corrosion, stress corrosion cracking, hydrogen damages, sulfidic corrosion, microbiologically induced corrosion, erosion-corrosion, and corrosion fatigue occurring at refinery units. At last, fouling, corrosion and cleaning are discussed in this book.
Corrosion Problems and Solutions in Oil Refining and Petrochemical Industry
Author: Alec Groysman
Publisher: Springer
ISBN: 3319452568
Category : Technology & Engineering
Languages : en
Pages : 369
Book Description
This book addresses corrosion problems and their solutions at facilities in the oil refining and petrochemical industry, including cooling water and boiler feed water units. Further, it describes and analyzes corrosion control actions, corrosion monitoring, and corrosion management. Corrosion problems are a perennial issue in the oil refining and petrochemical industry, as they lead to a deterioration of the functional properties of metallic equipment and harm the environment – both of which need to be protected for the sake of current and future generations. Accordingly, this book examines and analyzes typical and atypical corrosion failure cases and their prevention at refineries and petrochemical facilities, including problems with: pipelines, tanks, furnaces, distillation columns, absorbers, heat exchangers, and pumps. In addition, it describes naphthenic acid corrosion, stress corrosion cracking, hydrogen damages, sulfidic corrosion, microbiologically induced corrosion, erosion-corrosion, and corrosion fatigue occurring at refinery units. At last, fouling, corrosion and cleaning are discussed in this book.
Publisher: Springer
ISBN: 3319452568
Category : Technology & Engineering
Languages : en
Pages : 369
Book Description
This book addresses corrosion problems and their solutions at facilities in the oil refining and petrochemical industry, including cooling water and boiler feed water units. Further, it describes and analyzes corrosion control actions, corrosion monitoring, and corrosion management. Corrosion problems are a perennial issue in the oil refining and petrochemical industry, as they lead to a deterioration of the functional properties of metallic equipment and harm the environment – both of which need to be protected for the sake of current and future generations. Accordingly, this book examines and analyzes typical and atypical corrosion failure cases and their prevention at refineries and petrochemical facilities, including problems with: pipelines, tanks, furnaces, distillation columns, absorbers, heat exchangers, and pumps. In addition, it describes naphthenic acid corrosion, stress corrosion cracking, hydrogen damages, sulfidic corrosion, microbiologically induced corrosion, erosion-corrosion, and corrosion fatigue occurring at refinery units. At last, fouling, corrosion and cleaning are discussed in this book.
Oil and Gas Corrosion Prevention
Author: James G. Speight
Publisher: Gulf Professional Publishing
ISBN: 0128004150
Category : Technology & Engineering
Languages : en
Pages : 210
Book Description
According to NACE (National Association of Corrosion Engineers), the total annual cost of corrosion in petroleum refining takes up $3.7 billion in the US alone. Corrosion control is always a challenge for the downstream industry, but as the quality of feedstock is declining due to refineries accepting more of the heavy and shale gas and oil resources that are more readily available today, refinery managers, petroleum and natural gas engineers are unprepared for the new set of corrosion problems that are showing up in their equipment and processing units. Oil and Gas Corrosion Prevention: From Surface Facilities to Refineries quickly gets the engineer and manager up to speed on the latest types of corrosion common for these lower grade crude oils and gases as well as the best prevention methods for all of the major sections of the refinery, especially desalting and sulfur recovery units, which are the most common problem areas for unconventional feedstocks. Also covering the unique midstream sections, or point of entry to the refinery, as well as the major critical refinery equipment, Oil and Gas Corrosion Prevention: From Surface Facilities to Refineries offers the perfect quick cross-reference for the oil and gas community. - Gets engineers and managers up to speed on the latest types of corrosion common for lower grade crude oils and gases - Provides the best prevention methods for all of the major sections of the refinery, especially desalting and sulfur recovery units - Covers additional topics such as unique midstream sections, or point of entry to the refinery, as well as major critical refinery equipment
Publisher: Gulf Professional Publishing
ISBN: 0128004150
Category : Technology & Engineering
Languages : en
Pages : 210
Book Description
According to NACE (National Association of Corrosion Engineers), the total annual cost of corrosion in petroleum refining takes up $3.7 billion in the US alone. Corrosion control is always a challenge for the downstream industry, but as the quality of feedstock is declining due to refineries accepting more of the heavy and shale gas and oil resources that are more readily available today, refinery managers, petroleum and natural gas engineers are unprepared for the new set of corrosion problems that are showing up in their equipment and processing units. Oil and Gas Corrosion Prevention: From Surface Facilities to Refineries quickly gets the engineer and manager up to speed on the latest types of corrosion common for these lower grade crude oils and gases as well as the best prevention methods for all of the major sections of the refinery, especially desalting and sulfur recovery units, which are the most common problem areas for unconventional feedstocks. Also covering the unique midstream sections, or point of entry to the refinery, as well as the major critical refinery equipment, Oil and Gas Corrosion Prevention: From Surface Facilities to Refineries offers the perfect quick cross-reference for the oil and gas community. - Gets engineers and managers up to speed on the latest types of corrosion common for lower grade crude oils and gases - Provides the best prevention methods for all of the major sections of the refinery, especially desalting and sulfur recovery units - Covers additional topics such as unique midstream sections, or point of entry to the refinery, as well as major critical refinery equipment
Corrosion Inhibitors in the Oil and Gas Industry
Author: Viswanathan S. Saji
Publisher: John Wiley & Sons
ISBN: 352734618X
Category : Technology & Engineering
Languages : en
Pages : 458
Book Description
Provides comprehensive coverage of corrosion inhibitors in the oil and gas industries Considering the high importance of corrosion inhibitor development for the oil and gas sectors, this book provides a thorough overview of the most recent advancements in this field. It systematically addresses corrosion inhibitors for various applications in the oil and gas value chain, as well as the fundamentals of corrosion inhibition and interference of inhibitors with co-additives. Corrosion Inhibitors in the Oil and Gas Industries is presented in three parts. The first part on Fundamentals and Approaches focuses on principles and processes in the oil and gas industry, the types of corrosion encountered and their control methods, environmental factors affecting inhibition, material selection strategies, and economic aspects of corrosion. The second part on Choice of Inhibitors examines corrosion inhibitors for acidizing processes, inhibitors for sweet and sour corrosion, inhibitors in refinery operations, high-temperature corrosion inhibitors, inhibitors for challenging corrosive environments, inhibitors for microbiologically influenced corrosion, polymeric inhibitors, vapor phase inhibitors, and smart controlled release inhibitor systems. The last part on Interaction with Co-additives looks at industrial co-additives and their interference with corrosion inhibitors such as antiscalants, hydrate inhibitors, and sulfide scavengers. -Presents a well-structured and systematic overview of the fundamentals and factors affecting corrosion -Acts as a handy reference tool for scientists and engineers working with corrosion inhibitors for the oil and gas industries -Collectively presents all the information available on the development and application of corrosion inhibitors for the oil and gas industries -Offers a unique and specific focus on the oil and gas industries Corrosion Inhibitors in the Oil and Gas Industries is an excellent resource for scientists in industry as well as in academia working in the field of corrosion protection for the oil and gas sectors, and will appeal to materials scientists, electrochemists, chemists, and chemical engineers.
Publisher: John Wiley & Sons
ISBN: 352734618X
Category : Technology & Engineering
Languages : en
Pages : 458
Book Description
Provides comprehensive coverage of corrosion inhibitors in the oil and gas industries Considering the high importance of corrosion inhibitor development for the oil and gas sectors, this book provides a thorough overview of the most recent advancements in this field. It systematically addresses corrosion inhibitors for various applications in the oil and gas value chain, as well as the fundamentals of corrosion inhibition and interference of inhibitors with co-additives. Corrosion Inhibitors in the Oil and Gas Industries is presented in three parts. The first part on Fundamentals and Approaches focuses on principles and processes in the oil and gas industry, the types of corrosion encountered and their control methods, environmental factors affecting inhibition, material selection strategies, and economic aspects of corrosion. The second part on Choice of Inhibitors examines corrosion inhibitors for acidizing processes, inhibitors for sweet and sour corrosion, inhibitors in refinery operations, high-temperature corrosion inhibitors, inhibitors for challenging corrosive environments, inhibitors for microbiologically influenced corrosion, polymeric inhibitors, vapor phase inhibitors, and smart controlled release inhibitor systems. The last part on Interaction with Co-additives looks at industrial co-additives and their interference with corrosion inhibitors such as antiscalants, hydrate inhibitors, and sulfide scavengers. -Presents a well-structured and systematic overview of the fundamentals and factors affecting corrosion -Acts as a handy reference tool for scientists and engineers working with corrosion inhibitors for the oil and gas industries -Collectively presents all the information available on the development and application of corrosion inhibitors for the oil and gas industries -Offers a unique and specific focus on the oil and gas industries Corrosion Inhibitors in the Oil and Gas Industries is an excellent resource for scientists in industry as well as in academia working in the field of corrosion protection for the oil and gas sectors, and will appeal to materials scientists, electrochemists, chemists, and chemical engineers.
Corrosion in the Petrochemical Industry, Second Edition
Author:
Publisher: ASM International
ISBN: 1627080945
Category : Technology & Engineering
Languages : en
Pages : 426
Book Description
Originally published in 1994, this second edition of Corrosion in the Petrochemical Industry collects peer-reviewed articles written by experts in the field of corrosion that were specifically chosen for this book because of their relevance to the petrochemical industry. This edition expands coverage of the different forms of corrosion, including the effects of metallurgical variables on the corrosion of several alloys. It discusses protection methods, including discussion of corrosion inhibitors and corrosion resistance of aluminum, magnesium, stainless steels, and nickels. It also includes a section devoted specifically to petroleum and petrochemical industry related issues.
Publisher: ASM International
ISBN: 1627080945
Category : Technology & Engineering
Languages : en
Pages : 426
Book Description
Originally published in 1994, this second edition of Corrosion in the Petrochemical Industry collects peer-reviewed articles written by experts in the field of corrosion that were specifically chosen for this book because of their relevance to the petrochemical industry. This edition expands coverage of the different forms of corrosion, including the effects of metallurgical variables on the corrosion of several alloys. It discusses protection methods, including discussion of corrosion inhibitors and corrosion resistance of aluminum, magnesium, stainless steels, and nickels. It also includes a section devoted specifically to petroleum and petrochemical industry related issues.
Amine Unit corrosion in Refineries (EFC 46)
Author: J.D. Harston
Publisher: CRC Press
ISBN: 9781420054958
Category : Mathematics
Languages : en
Pages : 0
Book Description
The corrosion of carbon steels in amine units used for gas treatment in refining operations is a major problem for the petrochemical industry. Maximizing amine unit reliability, together with improving throughput, circulation, and treatment capacity, requires more effective ways of measuring and predicting corrosion rates. However, there has been a lack of data on corrosion. This valuable report helps to remedy this lack of information by summarizing findings from over 30 plants. It covers such amine types as Methyl Diethanolamine (MDEA), Diethanolamine (DEA), Monoethanolamine (MEA) and Di-isopropanolamine (DIPA), and makes recommendations on materials and process parameters to maximize amine unit efficiency and reliability.
Publisher: CRC Press
ISBN: 9781420054958
Category : Mathematics
Languages : en
Pages : 0
Book Description
The corrosion of carbon steels in amine units used for gas treatment in refining operations is a major problem for the petrochemical industry. Maximizing amine unit reliability, together with improving throughput, circulation, and treatment capacity, requires more effective ways of measuring and predicting corrosion rates. However, there has been a lack of data on corrosion. This valuable report helps to remedy this lack of information by summarizing findings from over 30 plants. It covers such amine types as Methyl Diethanolamine (MDEA), Diethanolamine (DEA), Monoethanolamine (MEA) and Di-isopropanolamine (DIPA), and makes recommendations on materials and process parameters to maximize amine unit efficiency and reliability.
Fouling in Refineries
Author: James G. Speight
Publisher: Gulf Professional Publishing
ISBN: 0128011459
Category : Technology & Engineering
Languages : en
Pages : 539
Book Description
Fouling in Refineries is an important and ongoing problem that directly affects energy efficiency resulting in increased costs, production losses, and even unit shutdown, requiring costly expenditures to clean up equipment and return capacity to positive levels. This text addresses this common challenge for the hydrocarbon processing community within each unit of the refinery. As refineries today face a greater challenge of accepting harder to process heavier crudes and the ongoing flow of the lighter shale oil feedstocks, resulting in bigger challenges to balance product stability within their process equipment, this text seeks to inform all relative refinery personnel on how to monitor fouling, characterize the deposits, and follow all available treatments. With basic modeling and chemistry of fouling and each unit covered, users will learn how to operate at maximum production rates and elongate the efficiency of their refinery's capacity. - Presents an understanding of the breakdown of fouling per refinery unit, including distillation and coking units - Provides all the factors, crude types, and refining blends that cause fouling, especially the unconventional feedstocks and high acid crudes used today - Helps users develop an analysis-based treatment and control strategy that empowers them to operate refinery equipment at a level that prevents fouling from occurring
Publisher: Gulf Professional Publishing
ISBN: 0128011459
Category : Technology & Engineering
Languages : en
Pages : 539
Book Description
Fouling in Refineries is an important and ongoing problem that directly affects energy efficiency resulting in increased costs, production losses, and even unit shutdown, requiring costly expenditures to clean up equipment and return capacity to positive levels. This text addresses this common challenge for the hydrocarbon processing community within each unit of the refinery. As refineries today face a greater challenge of accepting harder to process heavier crudes and the ongoing flow of the lighter shale oil feedstocks, resulting in bigger challenges to balance product stability within their process equipment, this text seeks to inform all relative refinery personnel on how to monitor fouling, characterize the deposits, and follow all available treatments. With basic modeling and chemistry of fouling and each unit covered, users will learn how to operate at maximum production rates and elongate the efficiency of their refinery's capacity. - Presents an understanding of the breakdown of fouling per refinery unit, including distillation and coking units - Provides all the factors, crude types, and refining blends that cause fouling, especially the unconventional feedstocks and high acid crudes used today - Helps users develop an analysis-based treatment and control strategy that empowers them to operate refinery equipment at a level that prevents fouling from occurring
Corrosion and Materials Selection
Author: Alireza Bahadori
Publisher: John Wiley & Sons
ISBN: 1118869222
Category : Technology & Engineering
Languages : en
Pages : 580
Book Description
The petroleum and chemical industries contain a wide variety of corrosive environments, many of which are unique to these industries. Oil and gas production operations consume a tremendous amount of iron and steel pipe, tubing, pumps, valves, and sucker rods. Metallic corrosion is costly. However, the cost of corrosion is not just financial. Beyond the huge direct outlay of funds to repair or replace corroded structures are the indirect costs – natural resources, potential hazards, and lost opportunity. Wasting natural resources is a direct contradiction to the growing need for sustainable development. By selecting the correct material and applying proper corrosion protection methods, these costs can be reduced, or even eliminated. This book provides a minimum design requirement for consideration when designing systems in order to prevent or control corrosion damage safely and economically, and addresses: • Corrosion problems in petroleum and chemical industries • Requirements for corrosion control • Chemical control of corrosive environments • Corrosion inhibitors in refineries and petrochemical plants • Materials selection and service life of materials • Surface preparation, protection and maintainability • Corrosion monitoring - plant inspection techniques and laboratory corrosion testing techniques Intended for engineers and industry personnel working in the petroleum and chemical industries, this book is also a valuable resource for research and development teams, safety engineers, corrosion specialists and researchers in chemical engineering, engineering and materials science.
Publisher: John Wiley & Sons
ISBN: 1118869222
Category : Technology & Engineering
Languages : en
Pages : 580
Book Description
The petroleum and chemical industries contain a wide variety of corrosive environments, many of which are unique to these industries. Oil and gas production operations consume a tremendous amount of iron and steel pipe, tubing, pumps, valves, and sucker rods. Metallic corrosion is costly. However, the cost of corrosion is not just financial. Beyond the huge direct outlay of funds to repair or replace corroded structures are the indirect costs – natural resources, potential hazards, and lost opportunity. Wasting natural resources is a direct contradiction to the growing need for sustainable development. By selecting the correct material and applying proper corrosion protection methods, these costs can be reduced, or even eliminated. This book provides a minimum design requirement for consideration when designing systems in order to prevent or control corrosion damage safely and economically, and addresses: • Corrosion problems in petroleum and chemical industries • Requirements for corrosion control • Chemical control of corrosive environments • Corrosion inhibitors in refineries and petrochemical plants • Materials selection and service life of materials • Surface preparation, protection and maintainability • Corrosion monitoring - plant inspection techniques and laboratory corrosion testing techniques Intended for engineers and industry personnel working in the petroleum and chemical industries, this book is also a valuable resource for research and development teams, safety engineers, corrosion specialists and researchers in chemical engineering, engineering and materials science.
Corrosion in Refineries
Author: J Harston
Publisher: Elsevier
ISBN: 1845693248
Category : Technology & Engineering
Languages : en
Pages : 129
Book Description
Corrosion in ageing refinery plant presents a serious safety hazard. This important book summarises key research into corrosion processes in refinery equipment, how it can be measured and controlled. The book reviews factors affecting corrosion such as carburisation and metal dusting as well as corrosion in steel and other materials used in refinery technology. It considers corrosion in a range of refinery equipment such as storage tanks, HF alkylation units, sour water strippers and insulated units. Other chapters discuss ways of testing for corrosion and cracking in refineries together with integrity and life cycle assessment techniques. There is also coverage of ways of trouble-shooting corrosion problems and preventative measures such as coating systems.With its distinguished editor and team of contributors, Corrosion in refineries is a valuable reference for all those concerned with building and maintaining refineries in the petrochemical industry. - Summarises key research into corrosion processes in refinery equipment - Discusses ways of testing for corrosion and cracking in refineries
Publisher: Elsevier
ISBN: 1845693248
Category : Technology & Engineering
Languages : en
Pages : 129
Book Description
Corrosion in ageing refinery plant presents a serious safety hazard. This important book summarises key research into corrosion processes in refinery equipment, how it can be measured and controlled. The book reviews factors affecting corrosion such as carburisation and metal dusting as well as corrosion in steel and other materials used in refinery technology. It considers corrosion in a range of refinery equipment such as storage tanks, HF alkylation units, sour water strippers and insulated units. Other chapters discuss ways of testing for corrosion and cracking in refineries together with integrity and life cycle assessment techniques. There is also coverage of ways of trouble-shooting corrosion problems and preventative measures such as coating systems.With its distinguished editor and team of contributors, Corrosion in refineries is a valuable reference for all those concerned with building and maintaining refineries in the petrochemical industry. - Summarises key research into corrosion processes in refinery equipment - Discusses ways of testing for corrosion and cracking in refineries
Corrosion in Systems for Storage and Transportation of Petroleum Products and Biofuels
Author: Alec Groysman
Publisher: Springer Science & Business Media
ISBN: 9400778848
Category : Technology & Engineering
Languages : en
Pages : 306
Book Description
This book treats corrosion as it occurs and affects processes in real-world situations, and thus points the way to practical solutions. Topics described include the conditions in which petroleum products are corrosive to metals; corrosion mechanisms of petroleum products; which parts of storage tanks containing crude oils and petroleum products undergo corrosion; dependence of corrosion in tanks on type of petroleum products; aggressiveness of petroleum products to polymeric material; how microorganisms take part in corrosion of tanks and pipes containing petroleum products; which corrosion monitoring methods are used in systems for storage and transportation of petroleum products; what corrosion control measures should be chosen; how to choose coatings for inner and outer surfaces of tanks containing petroleum products; and how different additives (oxygenates, aromatic solvents) to petroleum products and biofuels influence metallic and polymeric materials. The book is of interest to corrosion engineers, materials engineers, oil and gas engineers, petroleum engineers, chemists, chemical engineers, mechanical engineers, failure analysts, scientists, and students, designers of tanks, pipelines and other systems for storage and transportation fuels, technicians. The book is of interest to corrosion engineers, materials engineers, oil and gas engineers, petroleum engineers, chemists, chemical engineers, mechanical engineers, failure analysts, scientists, and students, designers of tanks, pipelines and other systems for storage and transportation fuels, technicians. The book is of interest to corrosion engineers, materials engineers, oil and gas engineers, petroleum engineers, chemists, chemical engineers, mechanical engineers, failure analysts, scientists, and students, designers of tanks, pipelines and other systems for storage and transportation fuels, technicians.
Publisher: Springer Science & Business Media
ISBN: 9400778848
Category : Technology & Engineering
Languages : en
Pages : 306
Book Description
This book treats corrosion as it occurs and affects processes in real-world situations, and thus points the way to practical solutions. Topics described include the conditions in which petroleum products are corrosive to metals; corrosion mechanisms of petroleum products; which parts of storage tanks containing crude oils and petroleum products undergo corrosion; dependence of corrosion in tanks on type of petroleum products; aggressiveness of petroleum products to polymeric material; how microorganisms take part in corrosion of tanks and pipes containing petroleum products; which corrosion monitoring methods are used in systems for storage and transportation of petroleum products; what corrosion control measures should be chosen; how to choose coatings for inner and outer surfaces of tanks containing petroleum products; and how different additives (oxygenates, aromatic solvents) to petroleum products and biofuels influence metallic and polymeric materials. The book is of interest to corrosion engineers, materials engineers, oil and gas engineers, petroleum engineers, chemists, chemical engineers, mechanical engineers, failure analysts, scientists, and students, designers of tanks, pipelines and other systems for storage and transportation fuels, technicians. The book is of interest to corrosion engineers, materials engineers, oil and gas engineers, petroleum engineers, chemists, chemical engineers, mechanical engineers, failure analysts, scientists, and students, designers of tanks, pipelines and other systems for storage and transportation fuels, technicians. The book is of interest to corrosion engineers, materials engineers, oil and gas engineers, petroleum engineers, chemists, chemical engineers, mechanical engineers, failure analysts, scientists, and students, designers of tanks, pipelines and other systems for storage and transportation fuels, technicians.
Applied Metallurgy and Corrosion Control
Author: Amiya Kumar Lahiri
Publisher: Springer
ISBN: 9811046840
Category : Technology & Engineering
Languages : en
Pages : 558
Book Description
This book serves as a comprehensive resource on metals and materials selection for the petrochemical industrial sector. The petrochemical industry involves large scale investments, and to maintain profitability the plants are to be operated with minimum downtime and failure of equipment, which can also cause safety hazards. To achieve this objective proper selection of materials, corrosion control, and good engineering practices must be followed in both the design and the operation of plants. Engineers and professional of different disciplines involved in these activities are required to have some basic understanding of metallurgy and corrosion. This book is written with the objective of servings as a one-stop shop for these engineering professionals. The book first covers different metallic materials and their properties, metal forming processes, welding, and corrosion and corrosion control measures. This is followed by considerations in material selection and corrosion control in three major industrial sectors, oil & gas production, oil refinery, and fertilizers. The importance of pressure vessel codes as well as inspection and maintenance repair practices have also been highlighted. The book will be useful for technicians and entry level engineers in these industrial sectors. Additionally, the book may also be used as primary or secondary reading for graduate and professional coursework.
Publisher: Springer
ISBN: 9811046840
Category : Technology & Engineering
Languages : en
Pages : 558
Book Description
This book serves as a comprehensive resource on metals and materials selection for the petrochemical industrial sector. The petrochemical industry involves large scale investments, and to maintain profitability the plants are to be operated with minimum downtime and failure of equipment, which can also cause safety hazards. To achieve this objective proper selection of materials, corrosion control, and good engineering practices must be followed in both the design and the operation of plants. Engineers and professional of different disciplines involved in these activities are required to have some basic understanding of metallurgy and corrosion. This book is written with the objective of servings as a one-stop shop for these engineering professionals. The book first covers different metallic materials and their properties, metal forming processes, welding, and corrosion and corrosion control measures. This is followed by considerations in material selection and corrosion control in three major industrial sectors, oil & gas production, oil refinery, and fertilizers. The importance of pressure vessel codes as well as inspection and maintenance repair practices have also been highlighted. The book will be useful for technicians and entry level engineers in these industrial sectors. Additionally, the book may also be used as primary or secondary reading for graduate and professional coursework.