API 521 : Pressure Relieving and De-Pressuring Systems

In order to have an effective depressurization & vapor relief system; you need to know how you can select, size & operate it. This PetroKnowledge training course is applicable to pressure-relieving and vapor de-pressuring systems. The training course is applicable to petrochemical facilities, gas plants, liquefied natural gas (LNG) facilities, and oil and gas production facilities. Pressure vessels and other equipment require relief devices to provide overpressure protection to prevent conditions that may cause serious injuries to personnel, costly mechanical damage and environmental releases. The training course gives you specific detailed guidelines for evaluating a relief system, including determining the applicability of overpressure scenarios, required relief rates, and relief device capacity. Flare system calculations such as flare thermal radiation zone & purge gas rates is also included.

This PetroKnowledge training course will highlight:

• Fundamentals of Pressure Relief Valve Design & Operation
• Overpressure Scenarios
• Selecting and designing disposal systems, including such component parts as piping, vessels
• Selection & design of the flares, and vent stacks

For many decades of the last century. Process vents and pressure relief flows were directed, individually or collectively, to the atmosphere unburned. Gases separated from produced oil were also vented to the atmosphere unburned. The custom of unburned venting began to change later when increased environmental awareness and safety concerns created the desire to convert vents to continuously burning flares.

By the end of this training course, participants will learn to:

• Understand the importance of pressure relief systems and their key principles
• Select and size appropriate relief devices (e.g. Pressure safety valves)
• Calculate flare header thermal radiation zones & purge rates
• Understand the flare system equipment operations & maintenance
• Understand the zero flare principles

This program addresses the needs of a diverse audience with an interest in pressure relieving & flare systems. This training course is suitable to a wide range of professionals but will greatly benefit:

• Process Engineers involved in relief & flare selection and sizing
• Operation Engineers who have oversight responsibility for flare design & operation
• Technical personnel & supervisors involved in supporting relief flare operation

This interactive Training will be highly interactive, with opportunities to advance your opinions and ideas and will include;

• Lectures
• Workshop & Work Presentation
• Case Studies and Practical Exercise
• Videos and General Discussions

All companies are trying to set up a safe, reliable & compliant operations; hence their employees such as process & operation engineers shall have a full understanding of vapor relief & flare systems:

• Improve organization integrity
• Enhance organization KPI
• Reduce operation losses
• Achieve the class excellence in operations management

Poor handing of Pressure-relieving and De-pressuring Systems has the potential to asset damage & personnel incidents which will be the worst scenario ever. This course will have impact on the personal as follows:

• Understand the hierarchy of protective measures
• Aware of the pressure relief causes & actions required
• Best practices in relief system & flare operations
• Special consideration when selecting & sizing these systems
• Health & safety aspects associated with operation & maintenance of the relieving systems