Download or read book Mass Spectral Characterization of the Acid and Base Fractions from an Eastern and Western Shale Oil written by G. Greenwood and published by . This book was released on 1986 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailed characterization of shale oils can provide invaluable information for refining into a saleable product. To provide this type of information, an acidic and a basic fraction were obtained from an eastern and western shale oil. The fractions were analyzed using 70-eV high-resolution electron impact and low resolution field ionization mass spectrometry. Comparison of the analytical data shows striking differences between the compositions of acids and bases for the eastern and western shale oils. The eastern shale acids are primarily benzoic acids and phenols, whereas, the western shale acids contain high concentrations of benzoic and long-chain carboxylic acids. Differences in the base fractions appear in the number of carbons exocyclic to the basic nucleus and in the size of the nitrogen containing nucleus with as many as six aromatic rings. In contrast, the western bases have a larger number of carbons exocyclic to a specific nucleus with the nucleus having fewer aromatic rings. The presence of these compound types has serious refining implications since their presence could complicate a simple hydrogenation/hydrogenolysis upgrading using present refinery technology.
Download or read book Mass Spectrometric Characterization of Shale Oils written by Thomas Aczel and published by ASTM International. This book was released on 1986 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Conference on Mass Spectrometry and Allied Topics written by and published by . This book was released on 1982 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mass Spectrometric Characterization of Shale Oils written by Thomas Aczel and published by . This book was released on 1986 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1983 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1987 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Crude Shale Oil written by R. F. Stevens and published by . This book was released on 1952 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Oil Shale Waters by Gas Chromatography mass Spectrometry written by Dorothy C. Lane and published by . This book was released on 1986 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Methods in Mass Spectrometry written by Andrew G. Sharkey and published by . This book was released on 1967 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mass Spectrometric Characterization of Shale Oils written by Thomas Aczel and published by . This book was released on 1986 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1983 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Download or read book Selective Analysis of Petroleum Fractions by Mass Spectrometry written by Haoxuan Zhu and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrospray ionization mass spectrometry (ESI-MS) is a fast and sensitive technique that is ideal for detecting low concentration species of interest within complex mixtures. Because ESI-MS simply transfers charged species to the gas phase, only ions pre-formed in solution are visible. Accordingly, the charged tag, 3-(4-(bromomethyl)benzyl)-1-methylimidazolium hexafluorophosphate, was designed and synthesized to allow selective detection of phenols in petroleum fractions. Pressurized sample infusion (PSI) was optimized and used for time dependent analyses. PSI ESI-MS was applied to measure O-alkylation of the phenol species leading to rate information about the overall reaction along with dynamic information about reaction progress. The relative intensity of the charged tag was used to determine semi-quantitatively the presence of phenols in different petroleum fractions. Other derivatization methods in petroleomics were also explored. 1-[3-(Dimethylamino)propyl]-3-ethylcarbodiimide methiodide (EDT) derivatization followed by PSI ESI-MS analysis was applied for the selective measurement and identification of naphthenic acids in petroleum fractions. The reactions of standard naphthenic acids and EDT were studied by PSI ESI-MS to assess the efficiency of EDT and the rate of reactions. The same petroleum fractions were analysed by cold Electron ionization (Cold EI) gas chromatography-mass spectrometry (GC/MS) and classical EI GC/MS. The combination spectra from the subtraction from cold EI spectra to classical EI spectra provide us a new dimension to cold EI analysis of complex matrices. Meanwhile, a Python program was written to rapidly screen cold EI GC/MS data for routine tasks, such as retention time comparison on different instrument parameters for single petroleum sample and spectrum comparison on the same retention time for different petroleum samples.
Download or read book Characterization of Nitrogen Compound Types in Shale Oils Using H NMR and High Resolution Mass Spectral Analysis written by L.F. Thompson and published by . This book was released on 1977 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1982 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trace Analysis By Mass Spectrometry written by Arthur J. Ahearn and published by Elsevier. This book was released on 2012-12-02 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trace Analysis by Mass Spectrometry deals with trace analysis of solids and liquids by mass spectrometric techniques. Topics include the physics and techniques of electrical discharge ion sources, transmission of ions through double focusing mass spectrometers, and detection and measurement of ions by ion-sensitive plates. The ion sources used are principally electrical discharge type sources. This book is comprised of 14 chapters. The first several chapters focus on the basic physics of electrical discharge ion sources, double focusing mass spectrometry, and the measurement of arrays of mass resolved ion beams by electrical detection methods and with ion sensitive emulsions. The discussion then shifts to the problem of obtaining the chemical composition of the recorded mass resolved ion sample and relating this composition to that of the original sample. The chapters that follow describe specific techniques for analyzing special samples such as insulators, powders, microsamples, biological materials, reactive and low melting point substances, radioactive materials, and gases in solids. The remaining chapters include the use of laser ion sources in the analysis of solids and the analysis of surfaces particularly with sputter ion sources. This book will be of interest to students and practitioners of physics and chemistry.
Download or read book Effect of Sample Preparation on the Characterization of Crude Oil and Its Complex Fractions by High Resolution Mass Spectrometry written by Sami Lababidi and published by . This book was released on 2013 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Abstracts Literature and Patents written by and published by . This book was released on 1990 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
