Neutron activation analysis of major and trace elements in crude petroleum
Identifieur interne : 000F40 ( Main/Exploration ); précédent : 000F39; suivant : 000F41Neutron activation analysis of major and trace elements in crude petroleum
Auteurs : M. M. Musa [Libye] ; W. M. Markus [Libye] ; A. A. Elghondi [Libye] ; R. H. Etwir [Libye] ; A. H. Hannan [Libye] ; E. A. Arafa [Libye]Source :
- Journal of Radioanalytical and Nuclear Chemistry [ 0236-5731 ] ; 1995-11-01.
Abstract
Abstract: We have determined the concentration of 25 trace elements in crude petroleum from seven Libyan oil fields by instrumental neutron activation analysis. Crude oil samples were irradiated with a thermal neutron dose rate of 1012 and 1013 n·cm−2·s−1 in the Tajoura research reactor. The concentration of U, Br, Mg, Cu, Na, V, Cl, Al, Mn and Ca is in a range of 0.015 to 84 ppm and that of sulphur of 0.12 to 1.8%. The elements Sc, Cr, Ni, Fe, Co, Zn, Ag, Se, Sb, Ba, Cs, Yb, Hf and Hg have a concentration range of 0.009 to 8747 ppb. The coefficients of variation are within ∼10%. The elements V and Ni occur as both porphyrin and non-porphyrin and the ratio of these two forms varies over a wide range. The V/Ni ratios are located between 0.17 and 6.67, which are comparable to the reported values for the crude oils from other countries.
Url:
DOI: 10.1007/BF02038241
Affiliations:
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Box 30878, Tajoura</wicri:regionArea><wicri:noRegion>Tajoura</wicri:noRegion></affiliation></author><author><name sortKey="Etwir, R H" sort="Etwir, R H" uniqKey="Etwir R" first="R. H." last="Etwir">R. H. Etwir</name><affiliation wicri:level="1"><country xml:lang="fr">Libye</country><wicri:regionArea>Tajoura Research Centre, P.O. Box 30878, Tajoura</wicri:regionArea><wicri:noRegion>Tajoura</wicri:noRegion></affiliation></author><author><name sortKey="Hannan, A H" sort="Hannan, A H" uniqKey="Hannan A" first="A. H." last="Hannan">A. H. Hannan</name><affiliation wicri:level="1"><country xml:lang="fr">Libye</country><wicri:regionArea>Tajoura Research Centre, P.O. Box 30878, Tajoura</wicri:regionArea><wicri:noRegion>Tajoura</wicri:noRegion></affiliation></author><author><name sortKey="Arafa, E A" sort="Arafa, E A" uniqKey="Arafa E" first="E. A." last="Arafa">E. A. Arafa</name><affiliation wicri:level="1"><country xml:lang="fr">Libye</country><wicri:regionArea>Chemistry Department, Al-Fateh University, P.O. Box 13203, Tripoli</wicri:regionArea><wicri:noRegion>Tripoli</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Radioanalytical and Nuclear Chemistry</title><title level="j" type="sub">An International Journal Dealing with All Aspects and Applications of Nuclear Chemistry</title><title level="j" type="abbrev">Journal of Radioanalytical and Nuclear Chemistry, Articles</title><idno type="ISSN">0236-5731</idno><idno type="eISSN">1588-2780</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1995-11-01">1995-11-01</date><biblScope unit="volume">198</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="17">17</biblScope><biblScope unit="page" to="22">22</biblScope></imprint><idno type="ISSN">0236-5731</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0236-5731</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: We have determined the concentration of 25 trace elements in crude petroleum from seven Libyan oil fields by instrumental neutron activation analysis. Crude oil samples were irradiated with a thermal neutron dose rate of 1012 and 1013 n·cm−2·s−1 in the Tajoura research reactor. The concentration of U, Br, Mg, Cu, Na, V, Cl, Al, Mn and Ca is in a range of 0.015 to 84 ppm and that of sulphur of 0.12 to 1.8%. The elements Sc, Cr, Ni, Fe, Co, Zn, Ag, Se, Sb, Ba, Cs, Yb, Hf and Hg have a concentration range of 0.009 to 8747 ppb. The coefficients of variation are within ∼10%. The elements V and Ni occur as both porphyrin and non-porphyrin and the ratio of these two forms varies over a wide range. The V/Ni ratios are located between 0.17 and 6.67, which are comparable to the reported values for the crude oils from other countries.</div></front></TEI><affiliations><list><country><li>Libye</li></country></list><tree><country name="Libye"><noRegion><name sortKey="Musa, M M" sort="Musa, M M" uniqKey="Musa M" first="M. M." last="Musa">M. M. Musa</name></noRegion><name sortKey="Arafa, E A" sort="Arafa, E A" uniqKey="Arafa E" first="E. A." last="Arafa">E. A. Arafa</name><name sortKey="Elghondi, A A" sort="Elghondi, A A" uniqKey="Elghondi A" first="A. A." last="Elghondi">A. A. Elghondi</name><name sortKey="Etwir, R H" sort="Etwir, R H" uniqKey="Etwir R" first="R. H." last="Etwir">R. H. Etwir</name><name sortKey="Hannan, A H" sort="Hannan, A H" uniqKey="Hannan A" first="A. H." last="Hannan">A. H. Hannan</name><name sortKey="Markus, W M" sort="Markus, W M" uniqKey="Markus W" first="W. M." last="Markus">W. M. Markus</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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