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Naphthenic acid removal from crude oil through catalytic decarboxylation on magnesium oxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
44537 46038 2006 7 PDF Available
Title
Naphthenic acid removal from crude oil through catalytic decarboxylation on magnesium oxide
Abstract

Naphthenic acid (NA) has been recognized as one of the major sources of corrosion in oil production and refining. In this study, catalytic decarboxylation of carboxylic acid model compounds and naphthenic acid removal from crude oil were investigated. A metal oxide catalyst, MgO has been developed and its effectiveness in catalyzing decarboxylation reactions involving carboxylic acid compounds such as naphthoic acid has been determined based on the formation of CO2 and the conversion of acid. The major reaction takes place in the temperature range of 150–300 °C. The role of MgO in the system is considered to be multiple. It has the ability to adsorb acidic compounds via acid–base neutralization and it can also promote reactions such as decarboxylation and hydrocarbon cracking at the increased temperature. Direct application of MgO to crude oil results in significant naphthenic acid removal and lower total acidity of the oil as evidenced by a decrease in RCOOH concentration as determined by FT-IR and a lower total acid number (TAN).

Keywords
Catalytic decarboxylation; Naphthenic acid removal; Magnesium oxide; Naphthoic acid; Crude oil upgrading
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Naphthenic acid removal from crude oil through catalytic decarboxylation on magnesium oxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 303, Issue 1, 18 April 2006, Pages 103–109
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us