Hydrogen bonding in asphaltenes and coal. Quarterly Report for July 1, 1978 - September 30, 1978

PDF Version Also Available for Download.

Description

Two coal liquid products derived from the same Kentucky hvAb coal have been separated into toluene-insoluble, asphaltene, and pentane-soluble heavy oil fractions. Viscosity and calorimetric studies are reported of the interaction between heavy oil and asphaltene(A) and its acid/neutral(AA) and base(BA) components in solvent benzene. The increase in viscosity and molar enthalpy of interaction, {Delta}H{sup 0}, in the order BA>A>AA, correlate well with the proton magnetic resonance downfield chemical shift of the OH signal of o-phenylphenol, as a function of added asphaltene (A, AA, BA) concentration in solvent CS{sub 2}· The results suggest that when asphaltene .and heavy oil are ... continued below

Creation Information

Li, N.C. & Tewari, K.C. September 29, 1978.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 17 times . More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

Two coal liquid products derived from the same Kentucky hvAb coal have been separated into toluene-insoluble, asphaltene, and pentane-soluble heavy oil fractions. Viscosity and calorimetric studies are reported of the interaction between heavy oil and asphaltene(A) and its acid/neutral(AA) and base(BA) components in solvent benzene. The increase in viscosity and molar enthalpy of interaction, {Delta}H{sup 0}, in the order BA>A>AA, correlate well with the proton magnetic resonance downfield chemical shift of the OH signal of o-phenylphenol, as a function of added asphaltene (A, AA, BA) concentration in solvent CS{sub 2}· The results suggest that when asphaltene .and heavy oil are present together, hydrogen-bonding involving largely phenolic OH, is one of the mechanisms by which asphaltene-heavy oil interactions are achieved and, in part, is responsible for the viscosity increase of coal liquids.

Notes

Dep. NTIS, PC A02/MF A01.

Subjects

STI Subject Categories

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Report No.: COO-0063-10
  • Grant Number: EY-76-S-02-0063
  • DOI: 10.2172/1073609 | External Link
  • Office of Scientific & Technical Information Report Number: 1073609
  • Archival Resource Key: ark:/67531/metadc841958

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • September 29, 1978

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

Description Last Updated

  • Dec. 5, 2016, 8:31 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 17

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Li, N.C. & Tewari, K.C. Hydrogen bonding in asphaltenes and coal. Quarterly Report for July 1, 1978 - September 30, 1978, report, September 29, 1978; United States. (digital.library.unt.edu/ark:/67531/metadc841958/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.