By Klaus H. Altgelt, Visit Amazon's Mieczyslaw M. Boduszynski Page, search results, Learn about Author Central, Mieczyslaw M. Boduszynski,
Presents insights into the composition of petroleum, specially its heavy ends, and offers a evaluation of contemporary equipment for the research of heavy petroleum fractions, that are seen as refinery feedstocks. the idea that of an atmospheric similar boiling aspect (AEBP) scale expanding the boiling diversity nearly threefold and taking into account the outline of all crude oil fractions is brought.
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Additional info for Composition and Analysis of Heavy Petroleum Fractions
We must settle for simplifications. 7 illustrates this issue in a plot of carbon number versus boiling point. * Looking at it the other way, for a given carbon number, the paraffins have the lowest boiling points. These are the compounds of lowest mass for a given boiling point; or, seen from the other perspective again, they are the compounds with the highest boiling points for a given molar mass. 7 shows an essential fact of petroleum composition: Diverse compounds with similar molar masses cover a broad boiling range; and, conversely, a narrow boiling point cut can contain a wide molar mass range.
This is how we progress. Then Page 36 any differences in interpretation persisting in spite of clear terminology will, hopefully, lead to further progress. This too, we hope, will contribute to a greater understanding and to faster progress in our field. The latter is calculated from molecular weights and densities or from MW and H/C ratios by means of modified Winn equations (14). Thus, by studying simpler fractions, we can anticipate and plan for the analysis of the more difficult fractions.
Other problems are caused by the presence of 13C isotopes. This is an example of how proper fractionation can, to a great extent, overcome the limitations of MS and other characterization methods. Even chromatography can have great difficulty separating these two compound types. Despite these improvements, many NMR peaks still overlap to such a degree that a complete characterization of highboiling hydrocarbon mixtures by NMR alone is not possible, even without the additional complication by heteroatoms.
Composition and Analysis of Heavy Petroleum Fractions by Klaus H. Altgelt, Visit Amazon's Mieczyslaw M. Boduszynski Page, search results, Learn about Author Central, Mieczyslaw M. Boduszynski,