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hydrotreating
It is a promising support for cracking and hydrotreating catalysts.
      
The mechanism of thiophene hydrodesulfurization over sulfide catalysts for hydrotreating and the effect of the catalyst composition and feed on the number, distribution, and performance of active sites were studied using 35S and 3H isotopes.
      
Based on the results of radioisotopic study, a method for systematic testing-monitoring of sulfide Co(Ni)Mo catalysts for hydrotreating is developed.
      
The hydrotreating activity of the catalysts was proportional to the amount of hydrogen consumed in the range 20-500°C during TPR.
      
Hydrotreating Ni heteropolytungstate catalysts have been prepared by impregnation of γ-Al2O3-alumina with solutions of H3PW12O40 acid and its Ni salt.
      
Influence of Anderson and Keggin heteropoly compounds as precursors of oxide phases in hydrotreating catalysts on their performa
      
It was shown that the most active hydrotreating catalysts under the test conditions in a flow unit were the samples with X = Ni, Mn, or Zn.
      
In the case of hydrotreatment of WMO, the liquids obtained over RM at both 400° and 425°C had larger amounts of low-boiling hydrocarbons than that of thermal or catalytic treatment with hydrotreating catalyst.
      
Furthermore attention is given to studies of one of the most important industrial catalysts, the so-called hydrotreating catalysts.
      
The study on supported Fe and FeMo hydrotreating catalysts by combining M?ssbauer spectroscopy and ordinary γ-ray transmission
      
From in-situ M?ssbauer spectra recorded at room temperature it is concluded that the support material (carbon or alumina) influences the degree of sulfidation of Fe and FeMo hydrotreating catalysts.
      
The successful use of the two techniques is demonstrated by examples of two important technical catalyst systems, hydrotreating and ammonia synthesis catalysts, representing supported and unsupported catalysts.
      
M?ssbauer emission and absorption studies on the reduction behaviour of supported Co, Co-Mo, Fe and Fe-Mo hydrotreating catalyst
      
M?ssbauer spectroscopy studies of the preparation steps of unsupported Fe- and FeMo-sulfide hydrotreating catalysts
      
Fischer--Tropsch, hydrotreating and superClaus catalysts
      
These results afford a new insight into the stability of the Co-Mo-S structure and of the sulfur rich CoS1+x phase under hydrotreating conditions.
      
Although the above minerals exhibited lower activity than a commercial CoMo/Al2O3 catalyst, they were evaluated as possible hydrotreating catalysts.
      
Preparation of fibrous CoMo/Al2O3 hydrotreating catalysts by the sol-gel method
      
Fibrous CoMo-Al oxide hydrotreating catalysts have been prepared by the sol-gel method.
      
Hydrotreating of light cycle oil over CoMo/Al2O3, NiMo/Al2O3 and NiW/Al2O3 catalysts has shown that the type of catalyst has a critical influence on the composition and properties of the product.
      
 

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