Tests of ammonia synthesis catalysts on an industrial nitrogen-hydrogen mixture

Journal Article · Sat Nov 01 00:00:00 EST 1980 · Sov. Chem. Ind. (Engl. Transl.); (United States)

OSTI ID:6240152

Zhirnov, B S; Elizar'ev, V E; Cherepakhina, Z I; Lachinov, S S; Akhmetov, S A

Impurities in the hydrocarbon feedstock for the production of nitrogen-hydrogen mixture (NHM) for industrial NH/sub 3/ synthesis are known to poison the SA-1 industrial catalyst. The catalytic activity for some new catalysts, MV-5B, M-3S, and MV-1S, more resistant to poisoning was determined. The equipment and experimental procedure for various tests on the catalysts are described. Catalysts of particle sizes of 0.5-2.6 mm were tested in volumes of 9-25 ml in the 450 to 550/sup 0/C range at space velocities of 28,600, 45,000, and 47,200 hr/sup -1/. The results indicated that at 500/sup 0/C (the temperature for the maximum yield of NH/sub 3/), the relative deviation from the average value of the rate constant is a maximum of 5% for the catalyst with particle size < 1.6 mm at space velocities of > 45,000 hr/sup -1/. Before treatment with the NHM, the MV-1S and MV-5V catalysts were found to have the highest activity and M-3S the lowest. After treatment with NHM, the activity of the SA-1 catalyst fell by racking byd stuffs contamination in the USSR takes place in the framework of variations observed in separate countries of northern hemisphere.

• OSTI ID: 6240152
• Journal Information: Sov. Chem. Ind. (Engl. Transl.); (United States), Vol. 12:11; Other Information: Translated from Khim. Prom-st. (Moscow); No. 11, 671-672(1980)
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
AMMONIA
CHEMICAL PREPARATION
CATALYSTS
POISONING
CATALYSIS
EXPERIMENTAL DATA
HYDROCARBONS
IMPURITIES
REACTION KINETICS
DATA
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
KINETICS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
SYNTHESIS
090320* - Inorganic Hydrogen Compound Fuels- Preparation- (1976-1989)