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Coal desulfurization by selective chlorinolysis

Citation

Vasilakos, Nikolaos Petrou (1981) Coal desulfurization by selective chlorinolysis. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-09192006-130811

Abstract

The desulfurization of coal by selective oxidation under slurry-phase chlorination conditions was investigated. Chemical reaction was found to be the rate-controlling step in carbon-tetrachloride chorination at 25°C for coal particles less than 150 µ in diameter. For larger particle sizes, a transition from chemical to intraparticlemass-transfer control was observed. The nitrogen-surface area of the coal decreased significantly as a result of the chlorination reaction.

The reaction mechanism and the desulfurization patterns of chlorinolysis were studied under model-reaction and coal-chlorination conditions. Possible complete desulfurization schemes were considered.

The role of solvents both in increasing the efficiency of the coal treatment and in providing alternative paths for coal beneficiation processes was also examined. The results of this study were interpreted within the frame of the solubility-parameter theory, utilizing the new experimental technique of solubility-parameter spectroscopy.

Item Type:Thesis (Dissertation (Ph.D.))
Degree Grantor:California Institute of Technology
Division:Chemistry and Chemical Engineering
Major Option:Chemical Engineering
Thesis Availability:Restricted to Caltech community only
Research Advisor(s):
  • Corcoran, William Harrison
Thesis Committee:
  • Unknown, Unknown
Defense Date:30 October 1980
Record Number:CaltechETD:etd-09192006-130811
Persistent URL:http://resolver.caltech.edu/CaltechETD:etd-09192006-130811
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3639
Collection:CaltechTHESIS
Deposited By: Imported from ETD-db
Deposited On:05 Oct 2006
Last Modified:26 Dec 2012 03:01

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