Review of the in-Bed Hydrocarbon, Alkali, and Trace Metals Control in Coal Conversion Processes: Experimental Studies on the Control of Hydrocarbons Emission from a Gasifier. Quarterly Technical Progress Report No. 3, March-May 19

摘要

This report describes the technical progress made during the third quarter of this project involving experimental studies on the kinetics of the catalytic cracking of benzene. The aim of this work is to identify and evaluate a catalyst which would be effective in controlling hyrocarbon emissions from a coal gasifier. In general, the objectives are to identify an active catalyst for benzene cracking, to study the cracking kinetics and catalyst deactivation, and to formulate a reaction rate model for use in reactor design. Experiments are to be carried out in a laboratory fixed-bed reactor, and the product analysis done using a gas chromatograph and other appropriate techniques. During this quarter the reactor system developed earlier was modified to achieve a better performance, and cracking experiments were initiated in order to compare the activity of a few selected catalysts. Greer limestone (precalcined) and an iron oxide (45%)-silica (55%) catalyst were tested. Both catalysts gave about the same conversion levels. (ERA citation 08:032950)