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Corrosion Control of Acid Flare Lines at Gas Treatment Facility

In any operating facility, the integrity of flare or relief lines should always be closely maintained, as it is one of the most important safeguards during plant upsets or emergency conditions. The most common damage mechanism in acid flare lines is acid gas dew point corrosion”. Corrosion in such systems is often dependent on fluid stagnation, especially in the presence of acidic water, during idle conditions.
The intent of this paper is to shed light on the efforts done in a gas treatment facility to identify different root causes that impacted or accelerated Acid Gas Dew Point Corrosion. These included design deficiencies, equipment integrity, and process challenges. Moreover, the paper provides findings and recommendations to avoid the occurrence of similar events in acid flare lines.

Product Number: MPWT19-15242
Author: Ibrahim Albrahim, Ricardo Costa, Jehad Al-Aithan, Maher Al-Abdullatif, Abdulaziz Al- Tijani
Publication Date: 2019
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Picture for Using Robotic Inspection for Flare System to Avoid Plant Shutdown
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Using Robotic Inspection for Flare System to Avoid Plant Shutdown

Product Number: MPWT19-14300
Author: Amro Hassanein
Publication Date: 2019
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From day to day, Robots advance from testing in labs to operating in the outside world. The
industrial application of Robotic technologies continually increases, providing unique solutions for
different challenges. Flare System is an important and critical equipment required for continuous
safe operations for any petrochemical plant addressing proper burning of excess hydrocarbon
gases, unusable gases which cannot be recovered or recycled, and gas flaring protects against
the dangers of over-pressure. This paper discusses the different types of robotic inspection,
advantages, and limitations based on actual site demonstrations. As an innovative case, here to
introduce actual business case for close aerial inspection and surveying technique to avoid
polyethylene plant shutdown and providing a reliable inspection technique for on-stream integrity
evaluation for the flare tip. Drones, formally known as unmanned aerial vehicles (UAVs), are a
flying robot that can be remotely controlled, and offer an innovative inspection method launched
between 2006-2008 for Engineering professional aerial inspection and surveying using Remotely
Operated Aerial Vehicles (ROAVs). The visual inspection detection accuracy of (ROAV) offer
higher than the normal visual inspection and easily approach all the flare structure from four
directions. Drone inspection cost is competitive considering the cost of maintenance to dismantle
the flare tip. Drone inspection can be used to assess the elevated flare parts for any seriously
damage in order to define a clear maintenance scope ahead of shutdown.