Investigation of the compaction product on a nickel/diatomaceous earth catalyst

Abstract

The activity of the Ni/diatomaceous earth catalyst used in the process of obtaining acetone from isopropyl alcohol was studied in a laboratory setup over a wide temperature range (150–3500C) at atmospheric pressure. The analysis of raw materials and reaction products was carried out by the chromatographic method. In the process of isopropyl alcohol conversion on the Ni/diatomaceous earth catalyst surface, the formation of compaction products and the effect of oxygen and hydrogen on the catalyst surface were studied using a Mag-Ben setup equipped with a quartz-spring reactor. The formation of compaction products on the surface of the Ni/diatomaceous earth catalyst was determined by thermogravimetric and kinetic methods. The maximum amount of compaction products is formed at a temperature of 3000C and above on the Lewis sites. Thermogravimetric studies showed that the formation of compaction product on the surface of the Ni/diatomaceous earth catalyst is time and temperature dependent.