CRYOGENIC GAS PLANTS (68 pages with 40 photographs, drawings, and graphs) This manual covers the principles of gas refrigeration by gas expansion and describes the equipment and procedures for operating expander type gas plants. Both Metric and English units of measurement are used so students can work in units with which they are familiar.

Covered Subjects:

• The Cryogenic process flow
• Description of equipment in a cryogenic plant
• Principles of hydrocarbon condensation by gas cooling
• Cooling from pressure reduction and expansion
• Operation of the demethanizer
• Procedures for controlling the capacity with guide vanes and the J-T valve
• The seal gas, thrust control, and lubrication systems and their operating procedures
• Procedures to control the plant for maximum production at minimum recompression
• Procedures for dryout, cool-down, start-up, and operation with the expander down
• Troubleshooting procedures including snowballing temperatures, locked reboilers, freeze-ups, and expander problems

Questions and problems are included throughout the text with answers in the back that allow students to check their understanding of the subject.

Estimated self-study time: 12 hours