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Use of Tracers in Studying the Mechanism of Catalytic Reactions.
Final Report, July 1957 to July 1971

Emmett, Paul H.

Johns Hopkins University

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Table of Contents

Catalytic Cracking and Cracking Catalysts

1

The study of secondary reactions in the catalytic cracking of hexadecane over silica-alumina catalysts by using carbon-14 tracer compounds

3

2

Carbon-14 tracer studies of the secondary reactions in the catalytic cracking of n-hexadecane over silica-alumina and over catalysts containing zeolites.

6

3

Carbon-14 tracer studies of the secondary reactions in the cracking of hexadecane over zeolite catalysts. 9

4

The influence of water vapor on the adsorption and cracking of hydrocarbons 10

5

The free radical cracking of n-butane 12

6

Adsorption of N2, CO and Kr on ion exchange silica-alumina cracking catalysts(8) 13

7

Ethylene hydrogenation over cracking catalysts compared to pentene formation by dehydration or cracking of pentane. 15

8

Cracking of low molecular weight hydrocarbons 16
 
Iron Catalysts for Ammonia Synthesis and Fischer Tropsch Synthesis of Hydrocarbons from CO and H2

1

The exchange of H218 O with the oxygen of promoters(12) on the surface of Iron catalysts. (12) 23

2

The inhibition by nitrogen of the chemisorption of carbon monoxide on an unpromoted iron catalyst(13) 24

3

The use of C-14 tracers in studying the catalytic Fischer-Tropsch Synthesis of Hydrocarbons from carbon monoxide-hydrogen mixtures. (9)(10) 25
 
Miscellaneous Projects

1

Equilibrium measurements in the Mclybdenum-Carbon-Hydrogen System 35

2

The Gas Chromatographic Determination of Hydrogen, Deuterium and HD (11) 37

3

The exchange of radioactive acetone with isopropyl alcohol and propylene during the catalytic dehydrogenation and dehydration of isopropyl alcohol over chromium oxide catalysts 37

4

The chromatographic analysis of nitric oxides 38
References for Work Published 1957 - 1972 for Contract AT (11-1)-3273 41