Menu
Search
Filters
Close
Menu

11359 Corrosion Failures in Atmospheric Residue-Desulphurizer Unit after the Revamp (ARDS)

Picture for 11359 Corrosion Failures in Atmospheric Residue-Desulphurizer Unit after the Revamp (ARDS)
Available for download
Product Number: 51300-11359-SG
ISBN: 2011 11359 CP
Author: Sunil V. Vipat, Anil K. Ray, Mutlaq al Enezi and Musaed Al Arada
Publication Date: 2011
$0.00
$20.00
$20.00
An Atmospheric Residue De-sulphurizer Unit was revamped in year 2004 with a new online catalyst replacement technology process for increasing the operating run length, as well as capacity, of the unit. This paper describes three corrosion case studies which were a direct result of the revamp of the unit and inadequate understanding of the corrosion mechanisms / degradation expected due to process / capacity changes. The first case history is an exchanger tube sheet and components which experienced corrosion due to high temperature sulfidation1. The second case history addresses erosion of an inlet nozzle elbow and bulging / thinning of the impingement plate in the high pressure cold separator vessel (HPCS Vessel). The third case history documents high temperature sulphidation1 corrosion on diesel stripper inlet piping and a connected tower liquid inlet nozzle which was caused by an increase in operating fluid temperatures resulting in high corrosion rates. Based on these case histories, a thorough re-evaluation of the unit has been under taken using RBI methodology and is expected to result in revised inspection plans and intervals.

KEYWORDS: Erosion, corrosion, velocity, high temperature sulphidation, fouling, thinning, bulging, impingement
An Atmospheric Residue De-sulphurizer Unit was revamped in year 2004 with a new online catalyst replacement technology process for increasing the operating run length, as well as capacity, of the unit. This paper describes three corrosion case studies which were a direct result of the revamp of the unit and inadequate understanding of the corrosion mechanisms / degradation expected due to process / capacity changes. The first case history is an exchanger tube sheet and components which experienced corrosion due to high temperature sulfidation1. The second case history addresses erosion of an inlet nozzle elbow and bulging / thinning of the impingement plate in the high pressure cold separator vessel (HPCS Vessel). The third case history documents high temperature sulphidation1 corrosion on diesel stripper inlet piping and a connected tower liquid inlet nozzle which was caused by an increase in operating fluid temperatures resulting in high corrosion rates. Based on these case histories, a thorough re-evaluation of the unit has been under taken using RBI methodology and is expected to result in revised inspection plans and intervals.

KEYWORDS: Erosion, corrosion, velocity, high temperature sulphidation, fouling, thinning, bulging, impingement
Product tags
Also Purchased
Picture for 10350 Erosion of Austenitic Stainless Steel 90° Elbows of Charge Heater Tubes
Available for download

10350 Erosion of Austenitic Stainless Steel 90° Elbows of Charge Heater Tubes in Atmospheric Residue De-Sulphurization Unit (ARDS) of Mina Abdulla Refinery

Product Number: 51300-10350-SG
ISBN: 10350 2010 CP
Author: Sunil V. Vipat, Musaed Al Arada, Mutlaq Al Enezi and Anil Kumar Ray
Publication Date: 2010
$20.00
Picture for 07694 Guideline for material selection and qualification of wear and corrosion protective hard face
Available for download

07694 Guideline for material selection and qualification of wear and corrosion protective hard face coatings for piston rods

Product Number: 51300-07694-SG
ISBN: 07694 2007 CP
Author: Odd Haukås-Eide, Kari Lønvik, and Karl P. Fischer
Publication Date: 2007
$20.00

This paper presents a guideline for materials selection and qualification of wear and corrosion protective surface coating materials for offshore application of piston rods in hydraulic systems. The guideline is also applicable to other components utilizing hard face coating materials as wear coatings.
Picture for 07RTS7 Overview of Recent Three-Dimensional, Small Scale, Mini-Pipe Testing of Carbon Steel Well Tub
Available for download

07RTS7 Overview of Recent Three-Dimensional, Small Scale, Mini-Pipe Testing of Carbon Steel Well Tubulars with Internal Pressure, Axial Load, and Internal/External H2S Exposure

Product Number: 51300-07RTS7-SG
ISBN: 07RTS7 2007 CP
Author: Edward Paul Cernocky
Publication Date: 2007
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support