Characterization of petroleum pitches used for coke production

Conference · Sat Mar 01 04:00:00 EDT 1975 · Prepr., Div. Pet. Chem., Am. Chem. Soc.; (United States)

OSTI ID:5326330

Smith, W E; Napier, B; Horne, O J

Discovery and implementation of pitches as bonding agents is recorded in some of the earliest known documents, and their usage in all probability long predates recorded history. Numerous industries have been built around such applications as road surfacing, roofing materials, and various adhesive and sealant formulations. One application in which pitch materials have been used is as a binder in the fabrication of composite structures which can subsequently be pyrolyzed to yield carbon. Such fabrication schemes place emphasis on pitch materials that exhibit appropriate properties both as plastics at fabrication temperatures and as ceramic-type materials after carbonization. Since the properties of the latter are quite dependent on the characteristics of the raw material, the fabrications engineer becomes interested in composition, coke yields, and volume yields as they relate to the mechanical and electrical properties of the end product. As a part of a continuing study at the Oak Ridge Y-12 Plant on precursors to carbon, this report evaluates the composition and reproducibility of commercial pitch products from the Ashland Oil Company, Ashland, Kentucky. The pitches were isolated as distillate fractions from a cracking operation. Such an approach to pitch production reduces metallic impurities and represents an effort toward better control of pitch properties. This paper describes characterization studies on the molecular composition of both pitch and feedstock samples using nuclear magnetic resonance techniques.

• Research Organization: Union Carbide Corp., Oak Ridge, TN
• OSTI ID: 5326330
• Conference Information: Journal Name: Prepr., Div. Pet. Chem., Am. Chem. Soc.; (United States) Journal Volume: 20:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
BINDERS
CARBONIZATION
CHEMICAL COMPOSITION
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PITCHES
PYROLYSIS
RESONANCE
STRUCTURAL CHEMICAL ANALYSIS
USES