skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Reaction calorimetery for coal chemistry and catalysis. Quarterly report, February 1-April 30, 1984. [Dowex-50 and Nafion-H]

Abstract

A systematic thermochemical comparison of two quite different sulfonic acid resins (Dowex-50 and Nafion-H) is reported here. Heats of immersion of Nafion have been measured in some selected basic liquids at 30/sup 0/C and are compared with those of Dowex at 80/sup 0/C. Heats of immersion of Dowex and Nafion have also been measured in pyridine over a range of temperature from 30 to 100/sup 0/C and are included in this report. The report also includes the heats of immersion of Dowex and Nafion in n-octylamine (relatively strong base) at fairly high temperature (150/sup 0/C). 2 figures, 3 tables.

Authors:
Publication Date:
Research Org.:
Duke Univ., Durham, NC (USA). Dept. of Chemistry
OSTI Identifier:
5112546
Report Number(s):
DOE/PC/50807-T6
ON: DE84010534
DOE Contract Number:
FG22-82PC50807
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; COAL; CHEMISTRY; RESINS; CATALYTIC EFFECTS; THERMODYNAMIC PROPERTIES; AMINES; CATALYSIS; COMPARATIVE EVALUATIONS; EXPERIMENTAL DATA; HIGH TEMPERATURE; MEDIUM TEMPERATURE; PYRIDINE; RESEARCH PROGRAMS; SULFONIC ACIDS; TEMPERATURE DEPENDENCE; AZINES; CARBONACEOUS MATERIALS; DATA; ENERGY SOURCES; FOSSIL FUELS; FUELS; HETEROCYCLIC COMPOUNDS; INFORMATION; MATERIALS; NUMERICAL DATA; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC POLYMERS; ORGANIC SULFUR COMPOUNDS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHYSICAL PROPERTIES; POLYMERS; PYRIDINES; 010600* - Coal, Lignite, & Peat- Properties & Composition; 400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)

Citation Formats

Arnett, E.M. Reaction calorimetery for coal chemistry and catalysis. Quarterly report, February 1-April 30, 1984. [Dowex-50 and Nafion-H]. United States: N. p., 1984. Web.
Arnett, E.M. Reaction calorimetery for coal chemistry and catalysis. Quarterly report, February 1-April 30, 1984. [Dowex-50 and Nafion-H]. United States.
Arnett, E.M. 1984. "Reaction calorimetery for coal chemistry and catalysis. Quarterly report, February 1-April 30, 1984. [Dowex-50 and Nafion-H]". United States. doi:.
@article{osti_5112546,
title = {Reaction calorimetery for coal chemistry and catalysis. Quarterly report, February 1-April 30, 1984. [Dowex-50 and Nafion-H]},
author = {Arnett, E.M.},
abstractNote = {A systematic thermochemical comparison of two quite different sulfonic acid resins (Dowex-50 and Nafion-H) is reported here. Heats of immersion of Nafion have been measured in some selected basic liquids at 30/sup 0/C and are compared with those of Dowex at 80/sup 0/C. Heats of immersion of Dowex and Nafion have also been measured in pyridine over a range of temperature from 30 to 100/sup 0/C and are included in this report. The report also includes the heats of immersion of Dowex and Nafion in n-octylamine (relatively strong base) at fairly high temperature (150/sup 0/C). 2 figures, 3 tables.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1984,
month = 4
}

Technical Report:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that may hold this item. Keep in mind that many technical reports are not cataloged in WorldCat.

Save / Share:
  • Extension of the thermochemical approach to the study of hydrogen bond interactions on silica gel and its homogeneous analogue, triphenylsilanol, is presented here. This thermochemical study is analogous to that presented by R. Haaksma in previous reports (i.e., Annual Report August 1983 to July 1984). Heats of immersion were determined on the Setaram C-80 Tian-Calvet Calorimeter. While Haaksma used Dowex and p-toluene sulfonic acid as models for Broensted (proton transfer) processes in the thermochemical comparison, we are testing silica gel and triphenylsilanol as models for hydrogen bonding interactions. 9 refs., 3 figs., 5 tabs.
  • Thermochemical investigations of solid acid zeolite and three coal samples of different grades (subbituminous Wyoming Rawhide, Texas Big Brown Lignite, and Illinois No. 6 Bituminous) have been initiated. The Setaram calorimeter is working well and this report includes calibration measurements and examination of the effect of temperature variation on the heats of reaction of these coals with aqueous solutions of tetrabutylammonium hydroxide and the effect of mesh size on such heats. Investigation has begun on the use of a Microscal absorption and flow calorimeter which looks very promising for the study of the thermochemistry of adsorption of liquid acids ormore » bases on solids. 2 figures.« less
  • A thermochemical comparison of the solid sulfonic acid resin (Dowex 50) and its molecular analogue in solution (PTSA) is reported here. The heats of ionization of a number of selected bases with the two acid systems have been measured at 25/sup 0/C and are included in this report. A systematic study examining the role of water in the thermochemical investigation has been conducted and also is reported here. 4 figures, 3 tables.
  • Silica gel is believed to be a relatively simple solid acid which interacts with various adsorbates primarily through the formation of hydrogen bonds. Infrared studies have been done in attempts to relate hydrogen bond frequency shifts to the relative strength of acid-base interactions. Dr. Hughes' thin layer chromatography studies (Quarterly Report for November-January 1983) provided a preliminary background for our work on the acid-base chemistry of silica gel by the determination of relative free energies of adsorption for various substituted pyridines. The work reported here expands our studies of silica gel using gas-solid chromatography and flow microcalorimetry to determine thermodynamicmore » information for the interaction of substituted benzenes with silica. 9 references, 5 figures, 5 tables.« less
  • Coal-derived liquids are characterized by the presence of a considerable concentration of oxygen-containing components. Therefore, a systematic catalytic hydrodeoxygenation (HDO) study of coal-derived liquids and related model compounds is being carried out. This study provides information not only on the mechanism of HDO as related to the subject of catalytic upgrading of coal-derived liquids, but also on the role of oxygen-containing compounds in primary coal liquefaction processes. The main objective of this research project is to develop effective catalyst systems and processing conditions for hydrodenitrogenation (HDN) of coal-derived liquids (CDL) in a wide range of nitrogen contents and structural typemore » composition. This is of particular importance in view of the higher concentration of nitrogen-containing compounds in CDL as compared to that in petroleum feedstocks. For a better understanding of denitrogenation processes, the project includes systematic denitrogenation studies not only of CDL but also of related model N-containing compounds found in such liquids, e.g., phenanthridine, 1,10-phenanthroline, carbazoles, acridines, etc., as a function of catalysts type and experimental rate, mechanism and stereochemistry of HDN of structurally distinct N-containing aromatic systems in the presence of sulfided catalysts.« less