The Catalysis and Reaction Engineering Laboratories
are equipped with spectroscopic
instruments and catalytic reactors. The labora-tories
meet safety standards, being fitted with
gas detectors and alarms and large walk-in fume
hoods for research with toxic and flammable
chemicals. The instruments include the follow-ing:
infrared spectrometer, with FT Raman
capability; W-visible reflectance spectrometers;
ultrahigh vacuum/normal pressure apparatus
for chemisorption, surface area/pore volume,
temperature-programmed reduction/oxida-tion/
decomposition, and catalytic reaction mea-surements;
and a continuous-flow supercritical
extraction and desorption reactor with high-pressure
flame-ionization detector for carbon
dioxide solvent (the principal instrument for
the carbon dioxide extractions).
The laboratories also have a continuous-flow
supercritical extraction reactor system
with electrical furnace, pressure and tempera-ture
controllers, and high-pressure nitrogen
drive for liquid solvents (such as toluene and
butanol) that are monitored by a Perkin-Elmer
Lambda 4B UV-vis spectrophotometer with
flow-through absorption cuvette; a Beckman
Model 930 Helium or Air Comparison
Pycnometer for measuring porosity of granular
porous materials; an American Instrument
Company 60,000 psi mercury porosimeter for
measuring pore-volume distribution as a function
of pore diameter in solids and powders; and
a Perkin-Elmer 8500 Gas Chromatograph with
numerous packed and capillary columns for catalyst
and reactor characterization.