Specifications and design of a pressurized laminar-flow isothermal reactor for studies of coal reactivity

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Abstract
One facet of the larger project entitled The Characteristics of American Coals in Relation to Their Conversion to Clean Energy Fuels is intended to develop and test a series of reactor vessels capable of providing quantitative data on coal performance in reactions important in the gasification of coal, and to generate quantitative data on the pyrolysis behavior and reactivities of representative coal lithotypes and chars derived therefrom. A most important task element of this facet is the design, construction and testing of a pressurized isothermal reactor capable of operating at temperatures up to 1300/sup 0/C and at pressures up to 100 atmospheres. Required is an experimental system that will best permit rapid heating, isothermal reaction, rapid quenching of the sample reaction, variation of reaction time, study of pyrolysis or reaction with ambient gases, pressurization, and unambiguous reaction history. Attainment of these characteristics is the objective of the facet element described herein. The system is designed to feed coal dust at a pre-set rate into a controlled high temperature and pressure reactor, in the presence of hydrogen or other reactive gas, and then separate the solid effluent from the gas.

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