Catalysts - KNT Group
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Crude oil and its derivatives are the main sources of energy for the industrial sector and transport. In terms of scale, the processes of oil refining are at the top of the list of all catalytic processes. They provide the greatest quantity of organic raw materials for the chemical and petrochemical industry. The KNT Group is a company which manufactures catalysts for hydrogenisation processes (hydrocracking, hydrotreating), fluid catalytic cracking (FCC) and also catalysts for hydropetroleum chemistry.

The most important process in oil processingis catalytic cracking. Hydrocarbon cracking is the largest capacity industrial catalytic process. The cracking process produces liquid motor fuel: petrol, diesel and jet fuel. In 1949 the first fluidised bed installations with microsphere catalysts (the FCC process) appeared. These became the primary processes after the 1980s, following the transition to a new form of raw material – vacuum gas oil, instead of diesel fuel fractions. Fluid catalytic cracking uses a fine powder catalyst suspended in petroleum vapours or gas which acts like a liquid. The catalyst for fluid catalytic cracking manufactured by us is a microspherical catalyst, extremely durable and impervious to wear. It is highly active and does not contain ZSM-5 type zeolite supplements.

One of the main trends in the development of oil processing is the introduction of increasing heavy oil fractions in deep processing. Recently this has led to growth of the hydrocracking industry. Hydrocracking combines catalytic cracking with catalytic hydration. Hydrocracking catalysts have to combine hydrating and acidisation functions. Two types of hydrocracking catalysts have become common in the industry: amorphous and zeolite-containing catalysts. As hydrating metals they contain nickel, cobalt and molybdenum. To achieve increased splitting activity, amorphous aluminosilicate or a zeolite-containing component is introduced into the catalysts. The splitting and hydrating properties of the catalysts regulate by varying the quantity and the nature of the relevant components.

Hydrotreating of raw materials is used to obtain low-sulphur petrols, jet, diesel and furnace fuels, and also to produce raw materials for catalytic cracking, reforming and hydrocracking. The process of hydrotreating results in the hydrogenolysis of C-S, C-N, and C-O bonds, the hydration of unsaturated and aromatic compounds, and also the destruction of metal-organic compounds. Hydrotreating catalysts are widely found primarily as aluminum cobalt molybdenum and aluminum nickel molybdenum catalysts. Active aluminium oxide is most commonly used as a carrier (matrix). The optimum quantity of oxides of nickel, molybdenum and cobalt, the necessary type and quantity of the promotional supplement, as well as other methods of activation and modification are selected for different types of raw materials.

The technological and manufacturing abilities of the KNT Group allow for the production of a wide range of catalysts, compliant with European standards, and also to the individual requirements of the client.