INVESTIGATION OF STRESS CORROSION CRACKING OF STORAGE TANKS USED TO STORE METHANOL FOR GAS HYDRATE INHIBITION

INVESTIGATION OF STRESS CORROSION CRACKING OF STORAGE TANKS USED TO STORE METHANOL FOR GAS HYDRATE INHIBITION

Abstract:
Stress corrosion cracking (SCC) is a significant concern in the oil and gas industry, particularly in storage tanks used to store methanol for gas hydrate inhibition. Methanol is commonly employed as an inhibitor to prevent the formation of gas hydrates, which can cause severe blockages and operational issues in the transportation and storage of hydrocarbons. However, the presence of methanol and its interaction with the tank materials under specific conditions can lead to SCC, compromising the integrity and safety of the storage tanks.

This study aims to investigate the phenomenon of stress corrosion cracking in storage tanks used for methanol storage. The research includes a comprehensive analysis of the key factors influencing SCC, such as the presence of corrosive environments, mechanical stress, and the chemical properties of methanol. Experimental tests involving simulated storage tank conditions will be conducted to evaluate the susceptibility of different tank materials to SCC.

The investigation will focus on multiple aspects, including material selection, design considerations, and operational parameters that may contribute to the initiation and propagation of SCC. Advanced analytical techniques such as scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and electrochemical testing will be employed to characterize crack morphology, chemical composition, and electrochemical behavior.

Furthermore, the study will assess various mitigation strategies to prevent or control SCC in methanol storage tanks. These strategies may involve the modification of tank materials, the implementation of corrosion inhibitors, or changes in operational practices. The effectiveness and feasibility of these mitigation measures will be evaluated through laboratory experiments and numerical simulations.

The findings of this investigation will provide valuable insights into the mechanisms of stress corrosion cracking in storage tanks used for methanol storage and help develop guidelines and best practices for tank design, maintenance, and corrosion control strategies. Ultimately, this research aims to enhance the safety, reliability, and lifespan of storage tanks used for methanol-based gas hydrate inhibition in the oil and gas industry.

INVESTIGATION OF STRESS CORROSION CRACKING OF STORAGE TANKS USED TO STORE METHANOL FOR GAS HYDRATE INHIBITION. GET MORE MATERIALS SCIENCE AND ENGINEERING

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