Shawnee A



M.F. Maples(1), S. Kapila(1), and V. Flanigan(2), (1)Department of Chemistry and (2)Department of Mechanical Engineering, University of Missouri-Rolla, Rolla, MO 65409-0010. Recent estimates show that the United States disposes of over 285 million used tires annually. This is in addition to the several billion tires that are already a fixture on our landscape. These tires represent a substantial problem for sanitary landfills. Not only are they non-biodegradable, but they tend to become ideal breeding grounds for disease-carrying mosquitoes and other organisms. Many efforts have been made to recycle these tires into useful products. An innovative self-sustaining pyrolysis process has recently been developed.

The process yields three distinct fractions which can serve as feedstock for a variety of applications: a solid fraction consisting almost entirely of elemental carbon; a liquid fraction consisting of a variety of hydrocarbons; and a gaseous fraction with a medium BTU value, consisting of carbon monoxide, hydrogen, and methane. The process can be tailored to obtain a liquid fraction consisting mainly of butylbenzene and butylcyclohexadiene. Chemical analysis of the liquid fraction shows that these two constituents form up to 90 percent of the distillate.

Key words: tires, pyrolysis, butylbenzene, butylcyclohexadiene

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Tuesday, May 20, 1997

Metals Kansa A

Remediation of Munitions Compounds Kansa B

Analytical Methods Kansa C/D

General Topics Kansa B

Wednesday, May 21, 1997

Metals Kansa A

Zero-Valent Metals Kansa A

Remediation Kansa A

Vegetation-based Remediation Kansa B

Partnerships & Innovative Technologies Kansa C/D

Nonaqueous Phase Liquids Kansa C/D

Thursday, May 22, 1997

Biofilms & Barriers Kansa A

Bioremediation Kansa B

Partnerships & Technology Innovations Kansa C/D

Remediation Kansa C/D


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