Natural Gas Processing, Gas Sweetening and Sulphur Recovery
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Natural Gas Processing, Gas Sweetening and Sulphur Recovery Course
Introduction:
This course will start by defining what natural gas is, its properties, specifications, and end-uses. Then, typical gas processing operations will be discussed, including dehydration, acid gas removal, recovery of ethane, propane, and NGL (natural gas liquids), and liquefied natural gas (LNG) operations. Sulfur recovery, tail gas conditioning, and process control will also be discussed. Typical equipment and facilities that are found in typical natural gas processing operations will also be discussed including compressors, vessels, relief systems, and safety systems. Finally, the fundamentals of gas transportation and distribution will be discussed.
Course Objectives:
This short course is designed to give the attendants the fundamentals of natural gas conditioning and processing including some of the details of the process. Specifically, by attending this course you will:
- Gain a deep knowledge of the properties, specifications and end-use of natural gas.
- Gain a deeper understanding of typical natural gas processing operations, including:
- Dehydration
- Acid gas removal
- Recovery of ethane, propane, and NGL (natural gas liquids) Sulfur recovery
- Gain a deeper understanding of the production of liquefied natural gas (LNG).
- Gain a deeper knowledge of the different equipment and facilities found in natural gas processing plants.
- Learn about the fundamentals of gas transportation and distribution.
Who Should Attend?
Technical and non-technical personnel involved in the activities of the natural gas industry. Specifically, technical, operations, and maintenance personnel who had limited exposure to this area, or professionals involved in other areas of the gas industry that require a comprehensive overview of natural gas processing will find this course ideally suited for them.
Course Outlines:
What is natural gas?
· Origins, Properties, Specifications, End-uses and markets for natural gas, Environmental advantages, Physical behavior of natural gas systems, Physical and thermal properties. Phase behavior analysis, pure substances, the phase rule, Behavior of mixtures, Vaporization by gas pressure. Molecular theory of gases and liquids, Natural gases, Density of natural gas, Density of liquids, Dense phase. Surface tension, Viscosity, Thermal conductivity of gases, Thermodynamic properties, Sampling, and analysis.
· Natural gas processing plant, Flowsheet, Equipment and Components, Heat exchange in gas processing, Heat transfer theory, Mechanisms of heat transfer, Process heat duty. Heat exchangers types, Shell and tube, Double-pipe, Plate and frame, Aerial coolers, Fired heaters, Heat recovery units.
· Hydrates, Determination of hydrate formation temperature or pressure, Condensation of water vapor, Temperature drop due to gas expansion, Thermodynamic inhibitors. Kinetic inhibitors and anti-agglomerators. Low-temperature Exchange (LTX) units and line heaters, LTX units, Line heaters, Heat duty, Fire-tube size, Coil size, Standard size line heaters, Condensate stabilization, Partial pressure, Multistage separation, Multi flashes, Cold feed distillation tower, Distillation tower with reflux, Condensate stabilizer design, Trays and packing, Condensate stabilizer as a gas processing plant, LTX unit as a condensate stabilizer.
· Acid gas treating, Gas sweetening processes, Solid bed absorption, Chemical solvents, Physical solvent processes, Direct conversion of H2S to sulfur, Sulfide scavengers, Process selection, the Design procedure for iron-sponge units.
· Design procedure for amine systems, Amine absorber. Amine circulation rates, Flash drum, Amine reboilers. Amine stripper, Rich/lean amine exchanger, Amine cooler. Amine solution purification, Materials of construction. Gas dehydration, Water content determination. Glycol dehydration, Process description, Choice of glycol. Design considerations, System sizing, Solid bed dehydration.
· Sulfur recovery from natural gas. Direct conversion of H2S to sulfur (Sulfur Recovery) Claus process, LOCAT process, Stretford process, IFP process, Sulfa-check, Gas processing, Absorption/lean oil Refrigeration, Choice of process, Mechanical design of pressure vessels, Pressure relief, Relief requirements, Type of devices, Valve sizing, Installation, Gas transportation and distribution.
