THE OPTIMIZATION OF THE METHOD FOR SYNTHESIS OF HYDROTREATING CATALYSTS

Abstract

Nowadays the standards for sulfur content in different countries provide for a significant reduction of the indicator to 10 ppm for the gasoline- the raw material for catalytic reforming and 0,01% by weight. Restriction of the total content of aromatic hydrocarbon (no more than 20%), replaced by standards of polycyclic aromatic hydrocarbons (no more than 6-10%) and cetane number (45 and higher). This article outlines the development of optimization of the method for synthesis of hydrotreating catalysts. The main purpose of this article is consideration, mainly by the composition of the developed catalyst, of the ways of their modification by additional components, changing the number of active components, modification of the porous structure of the carrier through the synthesis of special types of aluminum oxide with a specified pore distribution by radius or inserting the zeolite component, changes in the conditions of thermal activation of catalysts. One of the main trends in the development of hydrotreating catalysts is their modification by different additives, for example: phosphorus, alkali element, zinc, tin, germanium, copper, uranium, etc. KEYWORDS: activity of industrial catalyst, impregnation by solutions, carrier modification, dispersion of nickel on aluminum oxide.