Published August 2021, Pg. 44-47

Section: Oil refining and petroleum chemistry

UOT: 665.777.4.66.094.173

DOI: 10.37474/0365-8554/2021-8-44-47

Study the pressure effect on hydrocracking process of vacuum gasoil

R.A. Gulieva - Institute for Petrochemical Processes

The paper presents the results of study on the pressure effect on hydrocracking process of vacuum gasoil from the mixture of Baku oils with the presence of aluminosilicate catalyst modified Ni, Mo. Hydrocracking of vacuum gasoil in the presence of aluminosilicate catalyst, modified Ni, Mo has been carried out in 3−8 MPa pressure in the temperature interval of 400−450 оС with the speed of 0.7−2.0 h-1 on Hungarian unit with reactor capacity in 200 ml. The pressure effect on the hdyrocracking process has been studied in the diapason of 3-8 MPa. It was defined that while the pressure is increasing from 3 to 5 MPa, the yield of diesel fraction also increases from 35 to 44 % mass. The pressure increase from 5 to 8 MPa increases the yield of diesel fraction for 48 %, i.e. the growth of only for 4 % is observed. It was considered practical to conduct hydrocracking process in 5MPa, as the pressure increase from 5 to 8 MPa leads to the significant increase of capital expenses.

References:

1. Khavkin V.A., Gulyaeva L.A. Perspektivy razvitiya protsessa gidrokrekinga na NPZ Rossii // Neftepererabotka i neftekhimiya, 2016, No 2, s. 8-15.

2. Dijk A., Vries A.F., Stork W.H. J. at all. Evaluation of hydrocracking catalysts in recycle tests // Catalysis Today, 1991, vol. 11, pp. 129-139.

3. Morel F., Bonnardot J., Benazzi E. Hydrocracking solutions squeeze more ULSD from heavy ends // Hydrocarbon processing, 2009, vol. 12, pp. 79-87.

4. Speight J.G. Hydrocracking. The Refinery of the Future, Copyright © 2010, Elsevier Inc., 2011, 416 p.

5. Bricker M., Thakkar V., Petri J. Hydrocracking in Petroleum Processing. Handbook of Petroleum Processing, Eds.; Springer: Cham, Switzerland, 2014, pp. 1-35.

6. Halacheva T., Navaa R., Dimitrov L. Catalytic activity of (P)NiMo/Ti-HMS and (P)NiW/TiHMS catalysts in the hydrogenation of naphthalene. Applied Catalysis, 1998, vol. 169, pp. 111-117.

7. Breysse M., Berhault G., Kasztelan S. at all. New aspects of catalytic functions on sulfide catalysts // Catalysis Today, 2001, vol. 66, pp.15-22.

8. Kumaran G.M., Garg S., Kumar M. at all. Origin of Hydrocracking Functionality in beta-Zeolite-Supported Tungsten Catalysts // Energy & Fuels, 2006, vol. 20, pp. 2308-2313.

9. Roussel M., Lemberton J.-L., Guisnet M. at all. Mechanisms of n-decane hydrocracking on a sulfide NiW on silica-alumina catalyst // Journal of Catalysis, 2003, vol. 218, pp. 427-437.