Jonathan D. Dobis: About the Author
JDD Consulting Inc.
Jonathan Dobis has worked in the field of materials and corrosion in the Refining and Chemical Process Industries for the past 39+ years. He has been involved in RBI implementation for over twenty years including RBI assessments of many HF Alkylation Units and has authored or co-authored over 25 technical publications including five in the area of HF Alkylation. His background includes 10 years as a Refinery Metallurgist at a major east coast refinery. He has a BS and MS in Metallurgical Engineering; is a registered Professional Engineer; and an AMPP-NACE Corrosion Specialist.
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Published Articles
Based on the current 5th Edition of API RP 751, this article is to help clarify where RBI can be used to extend inspection intervals for piping and equipment in an HF Alkylation Unit, and where it is prohibited.
This article summarizes a recent finite element analysis (FEA)-based study that employs creep simulation techniques to investigate the elevated temperature response of piping with peaked longitudinal weld seams.
This bulletin is part of a series of WRC Bulletins that contain the technical background and other information to evaluate damage mechanisms in various industries to facilitate the use of API 579. These bulletins, shown below, will be updated based on the latest knowledge and technology developed for identification of damage mechanisms.
The following is the final part of a 2-part series outlining the relationship between key operating parameters and corrosion that has been used to develop a set of guidelines to define an operating envelope.
Corrosion and fouling in HF Alkylation Units are closely linked to feed quality and operating conditions. This article outlines the relationship between key operating parameters and corrosion that has been used to develop a set of guidelines to...
