Estimation of Shutdown Schedule to Remove Fouling Layers of Heat Exchangers Using Risk-Based Inspection (RBI)

Author:

Elwerfalli Abdelnaser,Alsadaie SalihORCID,Mujtaba Iqbal M.ORCID

Abstract

Oil and Gas plants consist of a set of heat exchangers, which are used in recovering the waste heat from product streams to preheat the oil. The heat transfer coefficient of exchangers declines considerably during the operation period due to fouling. Fouling in heat exchangers is a complex phenomenon due to the acceleration of many layers of chemical substances across tubes of heat exchangers resulting from chemical reactions and surface roughness. In this paper, the fouling process was determined as a critical failure in the heat exchanger. Failure is an accelerated fouling layer across the heat exchanger tubes, which can be the reason for the clogging of tubes. Hence, a risk assessment was conducted using the Risk-Based Inspection (RBI) approach to estimate the probability of fouling in heat exchangers. The results showed that the RBI approach can be used successfully to predict the suitable time to shut down the plant and conduct the fouling cleaning process.

Publisher

MDPI AG

Subject

Process Chemistry and Technology,Chemical Engineering (miscellaneous),Bioengineering

Reference28 articles.

1. Process Plants: Shutdown and Turnaround Management;Sahoo,2019

2. Managing Maintenance Shutdowns and Outages;Levitt,2004

3. Organizational context approach in the establishment of a PMO for turnaround projects: Experiences from the oil & gas industry;Emiris;PM World J.,2014

4. The Challenges of Shutdown Management in the Petrochemical Refineries: A Case Study of PetroSA GTL Refinery;Benaya,2007

5. Crystallization of calcium carbonate and magnesium hydroxide in the heat exchangers of once-through Multistage Flash (MSF-OT) desalination process

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