Features of porphyrin compounds in Cambrian oil shales from Yakutiya, Siberia

Olga V. Serebrennikova, Tamara K. Mozzhelina

    Результат исследований: Материалы для журналаСтатья

    6 Цитирования (Scopus)

    Выдержка

    Vanadyl porphyrins were isolated from Yakutiya oil shale bitumens and also from kerogen and bitumen pyrolysates. They were analysed by mass spectrometry, HPLC and 1H NMR. The oil shales investigated were all from the same formation (Cambrian) but from samples containing different kerogen types. Samples ranged in maturity from Ro = 0.5 to 0.7. Bitumens extracted from the shales, with a value of Ro = 0.5 contained mainly DPEP porphyrins, that is chlorophyll α (C31D and C32D) and chlorophyll c (C30D) derivatives. Shales containing different kerogen types gave different DPEP/ETIO,C1 30E/C2 30E and C30D/C32D ratios. As pyrolysis temperatures were increased to 370°C, the difference between the released products disappeared. Heating bitumens isolated from oil shales with Ro values = 0.5 resulted in a decrease in the total porphyrin yield and in the DPEP/ETIO ratio. Also, heating at relatively low temperatures (270°C) leads to alkylation of the pigments, whereas heating at higher temperatures (370°C) causes dealkylation of the porphyrins. The composition of the vanadyl porphyrins in the extracted bitumens of oil shale with an Ro value of 0.70 are identical to those observed in the products of bitumen (Ro = 0.5) thermolysis at 370°C.

    Язык оригиналаАнглийский
    Страницы (с-по)891-895
    Число страниц5
    ЖурналOrganic Geochemistry
    Том21
    Номер выпуска8-9
    DOI
    СостояниеОпубликовано - 1994

    Отпечаток

    porphyrin
    Porphyrins
    asphalt
    Oils
    Kerogen
    kerogen
    oil
    Oil shale
    Vanadates
    oil shale
    bitumen
    heating
    Heating
    chlorophyll
    Thermolysis
    Alkylation
    Chlorophyll
    Pigments
    Temperature
    pyrolysis

    ASJC Scopus subject areas

    • Geochemistry and Petrology

    Цитировать

    Features of porphyrin compounds in Cambrian oil shales from Yakutiya, Siberia. / Serebrennikova, Olga V.; Mozzhelina, Tamara K.

    В: Organic Geochemistry, Том 21, № 8-9, 1994, стр. 891-895.

    Результат исследований: Материалы для журналаСтатья

    Serebrennikova, Olga V. ; Mozzhelina, Tamara K. / Features of porphyrin compounds in Cambrian oil shales from Yakutiya, Siberia. В: Organic Geochemistry. 1994 ; Том 21, № 8-9. стр. 891-895.
    @article{daf63451037f4df0a4dbcc5f62a4a433,
    title = "Features of porphyrin compounds in Cambrian oil shales from Yakutiya, Siberia",
    abstract = "Vanadyl porphyrins were isolated from Yakutiya oil shale bitumens and also from kerogen and bitumen pyrolysates. They were analysed by mass spectrometry, HPLC and 1H NMR. The oil shales investigated were all from the same formation (Cambrian) but from samples containing different kerogen types. Samples ranged in maturity from Ro = 0.5 to 0.7. Bitumens extracted from the shales, with a value of Ro = 0.5 contained mainly DPEP porphyrins, that is chlorophyll α (C31D and C32D) and chlorophyll c (C30D) derivatives. Shales containing different kerogen types gave different DPEP/ETIO,C1 30E/C2 30E and C30D/C32D ratios. As pyrolysis temperatures were increased to 370°C, the difference between the released products disappeared. Heating bitumens isolated from oil shales with Ro values = 0.5 resulted in a decrease in the total porphyrin yield and in the DPEP/ETIO ratio. Also, heating at relatively low temperatures (270°C) leads to alkylation of the pigments, whereas heating at higher temperatures (370°C) causes dealkylation of the porphyrins. The composition of the vanadyl porphyrins in the extracted bitumens of oil shale with an Ro value of 0.70 are identical to those observed in the products of bitumen (Ro = 0.5) thermolysis at 370°C.",
    keywords = "bitumen thermolysis products, bitumens, kerogen pyrolysates, Kuonamka Formation, Siberian oil shale, vanadyl porphyrins, Yakutiya",
    author = "Serebrennikova, {Olga V.} and Mozzhelina, {Tamara K.}",
    year = "1994",
    doi = "10.1016/0146-6380(94)90048-5",
    language = "English",
    volume = "21",
    pages = "891--895",
    journal = "Organic Geochemistry",
    issn = "0146-6380",
    publisher = "Elsevier Limited",
    number = "8-9",

    }

    TY - JOUR

    T1 - Features of porphyrin compounds in Cambrian oil shales from Yakutiya, Siberia

    AU - Serebrennikova, Olga V.

    AU - Mozzhelina, Tamara K.

    PY - 1994

    Y1 - 1994

    N2 - Vanadyl porphyrins were isolated from Yakutiya oil shale bitumens and also from kerogen and bitumen pyrolysates. They were analysed by mass spectrometry, HPLC and 1H NMR. The oil shales investigated were all from the same formation (Cambrian) but from samples containing different kerogen types. Samples ranged in maturity from Ro = 0.5 to 0.7. Bitumens extracted from the shales, with a value of Ro = 0.5 contained mainly DPEP porphyrins, that is chlorophyll α (C31D and C32D) and chlorophyll c (C30D) derivatives. Shales containing different kerogen types gave different DPEP/ETIO,C1 30E/C2 30E and C30D/C32D ratios. As pyrolysis temperatures were increased to 370°C, the difference between the released products disappeared. Heating bitumens isolated from oil shales with Ro values = 0.5 resulted in a decrease in the total porphyrin yield and in the DPEP/ETIO ratio. Also, heating at relatively low temperatures (270°C) leads to alkylation of the pigments, whereas heating at higher temperatures (370°C) causes dealkylation of the porphyrins. The composition of the vanadyl porphyrins in the extracted bitumens of oil shale with an Ro value of 0.70 are identical to those observed in the products of bitumen (Ro = 0.5) thermolysis at 370°C.

    AB - Vanadyl porphyrins were isolated from Yakutiya oil shale bitumens and also from kerogen and bitumen pyrolysates. They were analysed by mass spectrometry, HPLC and 1H NMR. The oil shales investigated were all from the same formation (Cambrian) but from samples containing different kerogen types. Samples ranged in maturity from Ro = 0.5 to 0.7. Bitumens extracted from the shales, with a value of Ro = 0.5 contained mainly DPEP porphyrins, that is chlorophyll α (C31D and C32D) and chlorophyll c (C30D) derivatives. Shales containing different kerogen types gave different DPEP/ETIO,C1 30E/C2 30E and C30D/C32D ratios. As pyrolysis temperatures were increased to 370°C, the difference between the released products disappeared. Heating bitumens isolated from oil shales with Ro values = 0.5 resulted in a decrease in the total porphyrin yield and in the DPEP/ETIO ratio. Also, heating at relatively low temperatures (270°C) leads to alkylation of the pigments, whereas heating at higher temperatures (370°C) causes dealkylation of the porphyrins. The composition of the vanadyl porphyrins in the extracted bitumens of oil shale with an Ro value of 0.70 are identical to those observed in the products of bitumen (Ro = 0.5) thermolysis at 370°C.

    KW - bitumen thermolysis products

    KW - bitumens

    KW - kerogen pyrolysates

    KW - Kuonamka Formation

    KW - Siberian oil shale

    KW - vanadyl porphyrins

    KW - Yakutiya

    UR - http://www.scopus.com/inward/record.url?scp=0028166701&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0028166701&partnerID=8YFLogxK

    U2 - 10.1016/0146-6380(94)90048-5

    DO - 10.1016/0146-6380(94)90048-5

    M3 - Article

    AN - SCOPUS:0028166701

    VL - 21

    SP - 891

    EP - 895

    JO - Organic Geochemistry

    JF - Organic Geochemistry

    SN - 0146-6380

    IS - 8-9

    ER -