Multifunctional Sulfide Catalysts in the Processes of Hydropurification and Hydroisomerisation of Gasoline and Diesel Oil Fractions

Modified aluminonickel molibdenum catalysts are studied in hydropurification and hydroisomerisation process of gasoline and diesel oil fractions. Catalysts were tested on flow reactor at the temperature 593–673 K, pressure 2.0-4.5 MPa, 2-7 hours-1 feed velocity. It was shown that synthesized catalysts have polyfunctional properties and they allow to obtain low sulfureous gasoline and diesel fuel with improved characteristics

Olefine Production from Syngas over Bimetallic Supported

Bimetallic cobalt-containing catalysts supported on alumina have been studied in the Fischer-Tropsch synthesis. It has been shown that a promotion of Co/Al2O3 by iridium leads to dispergation of both metals. It was supposed that the metal dispergation occurred due to M-M interaction with formation of the bimetallic nano-particles of cluster type. These particles have the high catalytic activity, selectivity and stability in the Fischer-Tropsch synthesis. It was observed that by regulation of the process conditions it is possible to obtain the definite hydrocarbon fractions. Thus, the increase both CO+H2 ratio and space velocity is accompanied by high olefin yield

Interaction Between Propylene and H2O over Rh-Ir/C-Catalysts of Clusters Type. Communication 1

The catalytic process of interaction between the propylene and H2O over bimetallic Rh-Ir/C-catalysts of clusters type, has been studied. The possibility of the process interaction between C3H6 and H2O according to and against Markovnikov rule are showed. The structure and state of Ru-Ir/C-catalysts surfaces were investigated by using electron microscopy

Hydropurification and Hydroisomerisation of Butyl-Mercaptan-Alkane Mixes and Diesel Oil Fractions on Alumo-Iron-Molybdenum Catalysts

Modified alumina-iron-molybdenum (AIM) catalysts have been studied in hydropurification and hydroisomerization both of butylmercaptan-alkane mixture and diesel oil fractions. It has been shown that the modification of alumina-iron-molybdenum catalysts by zeolites and other additives leads to a significantenhance of their hydrodesulfurization and hydroisomerization activity

Interaction Between Propylene and H2O over Ru-Co/SiO2 -Catalysts of Clusters Type. Communication 2.

The interaction between propylene and H2O on Ru-Co/SiO2-catalyst was studied. It was determined that the process of the water addition to olefin molecule is carried out with n-propanol, i-propanol and acetone formation. For clarification of the adsorption mechanism of propylene on Ru-Co-clusters the quantum- chemical calculation of interaction between it and Ru-Co, Ru-Ru, Co-Co clusters were carried out

CO2 Reforming of CH4 on Co-Containing Supported Catalysts

Mono- and bimetallic cobalt-containing catalysts supported on alumina have been investigated in the reaction of interaction between carbon dioxide and methane at variation of experiment temperature and pressure. It was shown, that the bimetallic catalysts have a high activity in this reaction in compare with monometallic ones. The main reaction products are carbon oxide, hydrogen, water and oxygenates. The yield of latter reaches 30% at certain conditions (P > 0.5 MPa, T < 853 K). The maximum conversion of both methane (100%) and carbon dioxide (94%) is reached at lower pressure (0.1 MPa) and 1023 K. In these conditions the synthesis-gas is a main reaction product. One of the advantages of the bimetallic catalysts is their resistance to coke formation

N-Decane Conversion Over Modified Zeolite-Containing Catalysts

The effect of decationized forms of zeolites (ZSM, NaY and clinoptilolite) on the hydrocracking and  hydroisomerization activity of alumina catalysts modified by metals in the n-decane conversion has been shown. The synthesized catalysts were studied in a laboratory flow reactor at temperature of 350-500 °C and P = 2.0 MPa and feeding flow rate = 2.0-6.0 hr-1. It has been established that both n-decane conversion and selectivity of isomer formation depend on the nature of modified additives. The GK-3 catalyst synthesized on the base of high silica ZSM-zeolite has the most cracking and isomerization activity