Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

05568 Study of Corrosiveness of Acidic Crude Oil and its Fractions

Picture for 05568 Study of Corrosiveness of Acidic Crude Oil
Available for download

The main goal of this work is to investigate the corrosiveness of different petroleum fractions distilled from acidic crude oil “A” at 150 to 370oC (302 to 698oF) and to find effective measures for diminishing the corrosiveness of aggressive fractions.

Product Number: 51300-05568-SG
ISBN: 05568 2005 CP
Author: Alec Groysman, Naphtali Brodsky, Joseph Pener, Alon Goldis and Natali Savchenko, Oil Refineries Ltd.
Publication Date: 2005
Industries: Petroleum Refining , Materials Selection and Design
$0.00
$20.00
$20.00

Every time new acidic crude oils are used, the problem of naphthenic acids (NA) arises again. Most investigations concern the corrosiveness of crude oils or gas oil fractions containing NA. In the acidic crude oil “A”, the kerosene fraction was the most corrosive.

The main goal of this work is to investigate the corrosiveness of different petroleum fractions distilled from acidic crude oil “A” at 150 to 370oC (302 to 698oF) and to find effective measures for diminishing the corrosiveness of aggressive fractions.

Corrosiveness of acidic crude oil “A” and petroleum distillates towards pure iron and mild steel (C1010, A 515 Gr 70) was examined in an autoclave and in a specially designed system. It was shown that acidic crude oil “A” at 300oC (572oF) (TAN = 0.4 mg KOH/g) did not have high corrosiveness: corrosion rate of mild steel was 0.05 to 0.1 mm/y (2 to 4 mpy); but that for other fractions of “A” is very high, especially for the kerosene fraction distilled at 150 to 270oC (302 to 518oF) (0.66 mm/y). Five fractions of this “wide” kerosene fraction were cut every 20oC, TAN was measured, and corrosivity of these fractions was determined. Corrosion rate of mild steel as a function of distillate temperature range for various fractions was described with maximum for kerosene distillate 190 to 210oC (374 to 410oF) of crude oil “A” with corrosion rate of 0.97 mm/y (38.8 mpy). The corrosion rate values correlate with TAN (Total Acidity Number). Corrosion kinetics was studied during 1 to 13 days. Blending and corrosion inhibitors were examined for corrosion mitigation in the acidic kerosene. Corrosion inhibitors “P” and “N” based on phosphate esters for the kerosene distillate 190 to 210oC (374 to 410oF) were examined under laboratory and industrial conditions. Inhibitor concentrations of 25 to 75 ppm resulted in efficiency (% reduction in corrosion rate) of 74 to 94%.

 

Keywords: crude oil, naphthenic acid corrosion, kerosene, mild steel,

 

Every time new acidic crude oils are used, the problem of naphthenic acids (NA) arises again. Most investigations concern the corrosiveness of crude oils or gas oil fractions containing NA. In the acidic crude oil “A”, the kerosene fraction was the most corrosive.

The main goal of this work is to investigate the corrosiveness of different petroleum fractions distilled from acidic crude oil “A” at 150 to 370oC (302 to 698oF) and to find effective measures for diminishing the corrosiveness of aggressive fractions.

Corrosiveness of acidic crude oil “A” and petroleum distillates towards pure iron and mild steel (C1010, A 515 Gr 70) was examined in an autoclave and in a specially designed system. It was shown that acidic crude oil “A” at 300oC (572oF) (TAN = 0.4 mg KOH/g) did not have high corrosiveness: corrosion rate of mild steel was 0.05 to 0.1 mm/y (2 to 4 mpy); but that for other fractions of “A” is very high, especially for the kerosene fraction distilled at 150 to 270oC (302 to 518oF) (0.66 mm/y). Five fractions of this “wide” kerosene fraction were cut every 20oC, TAN was measured, and corrosivity of these fractions was determined. Corrosion rate of mild steel as a function of distillate temperature range for various fractions was described with maximum for kerosene distillate 190 to 210oC (374 to 410oF) of crude oil “A” with corrosion rate of 0.97 mm/y (38.8 mpy). The corrosion rate values correlate with TAN (Total Acidity Number). Corrosion kinetics was studied during 1 to 13 days. Blending and corrosion inhibitors were examined for corrosion mitigation in the acidic kerosene. Corrosion inhibitors “P” and “N” based on phosphate esters for the kerosene distillate 190 to 210oC (374 to 410oF) were examined under laboratory and industrial conditions. Inhibitor concentrations of 25 to 75 ppm resulted in efficiency (% reduction in corrosion rate) of 74 to 94%.

 

Keywords: crude oil, naphthenic acid corrosion, kerosene, mild steel,

 

PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 00691 EXPERIENCE WITH TITANIUM HEAT EXCHANGERS
Available for download

00691 EXPERIENCE WITH TITANIUM HEAT EXCHANGERS IN REFINERY SERVICES

Product Number: 51300-00691-SG
ISBN: 00691 2000 CP
Author: Deyuan Fan, William C. Fort ili, Richard J. Horvath
Publication Date: 2000
$20.00

Several experiences with the use of titanium heat exchangers in refining processes are summarized. These involve distillation column overhead condensers in atmospheric crude distilling units, fluid catalytic cracking units, delayed coking units, and sour water strippers. The causes of problems are discussed. Needs for additional data are highlighted.
Picture for 06581 IDENTIFYING THE IMPACTS OF AMINE
Available for download

06581 IDENTIFYING THE IMPACTS OF AMINE CONTAMINATION ON CRUDE UNITS

Product Number: 51300-06581-SG
ISBN: 06581 2006 CP
Author: Randy Rechtien, George Duggan
Publication Date: 2006
$20.00

This paper discusses common amine sources and amine identification methods, the equipment commonly impacted and the steps which can be taken to address the challenge of amine contamination.
Picture for 11360 Corrosion in Crude Distillation Unit Overhead Operations: A Comprehensive Review
Available for download

11360 Corrosion in Crude Distillation Unit Overhead Operations: A Comprehensive Review

Product Number: 51300-11360-SG
ISBN: 2011 11360 CP
Author: Brian Chambers, Sridhar Srinivasan, Kwei Meng Yap, Mark Yunovich
Publication Date: 2011
$20.00

 The purpose of this paper will be to: (a) review published literature to characterize and classify speciation related to the types of impurities encountered in opportunity crudes; and (b) describe and categorize published case studies of corrosion in crude unit overhead operations.
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