Metallopetroporphyrins as process indicators: mass spectral identification of Ni (ETIO) and Ni (DPEP) homologous series in Green River shale oil

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Publication Type report
Author Lee, Albert K.; Gregg, Hugh R.; Reynolds, John G.
Title Metallopetroporphyrins as process indicators: mass spectral identification of Ni (ETIO) and Ni (DPEP) homologous series in Green River shale oil
Date 1994-12-05
Description Mass spectrometry (MS) of the porphyrin fraction of a demetallated shale oil from the LLNL Hot-Recycled-Solids retorting process exhibited homologous series of C25 to C33 (C28 maximum) for etio and C26 to C36 (C30 maximum) for DPEP (isocyclic) porphyrins, respectively. The sum of intensities after baseline correction yielded a zDPEP/ietio ratio of 1/1. The petroporphyrin fraction was prepared by demetallation of the whole shale oil using methane sulfonic acid followed by isolation by extraction and purification by alumina chromatography. MS examination of silica purified fractions showed another type of homologous series, tentatively assigned as tetrahydrobenzo-DPEP porphyrin. MS examination of porphyrin fractions isolated by alumina or alumina /silica chromatography without demetallation indicated Ni(etio) and Ni(DPEP) (isocyclic) porphyrins were observed with the same homologous series as seen in the demetallated fraction.
Type Text
Publisher Lawrence Livermore National Laboratory
Subject mass spectral identification; Green River shale oil; shale oil
Language eng
Bibliographic Citation Lee, A. K., Gregg, H. R., Reynolds, J. G. (1994). Metallopetroporphyrins as process indicators: mass spectral identification of Ni (ETIO) and Ni (DPEP) homologous series in Green River shale oil. Preprint: UCRL-JC-119237. Lawrence Livermore National Laboratory.
Relation Has Part Preprint: UCRL-JC-119237
Rights Management (c)Lawrence Livermore National Laboratory
Identifier ir-eua/id/3058
Source DSpace at ICSE
ARK ark:/87278/s6v153wd
Setname ir_eua
ID 214116
Reference URL https://collections.lib.utah.edu/ark:/87278/s6v153wd
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