Development of (γ-Al2O3-Zeolite Y)/α-Al2O3-HPCM Catalyst based on Highly Porous α-Al2O3-HPCM Support for Decreasing Oil Viscosity

Abstract

Highly porous cellular material (α-Al2O3-HPCM) support was synthesized by the template method. Highly porous support was used for the synthesis of the catalyst. A thin secondary layer with 25–30 μ thick γ-Al2O3 and zeolite Y was applied on the α-Al2O3-HPCM surface ((γ-Al2O3 (85%)-zeolite Y (15%))/α-Al2O3-HPCM). The catalyst based on the highly porous support was tested in a process of decreasing oil viscosity. The catalyst in the form of cylindrical granules and a thermal process of decreasing oil viscosity without the catalyst were used as the basis for comparison. α-Al2O3-HPCM in the catalyst provides low-quantity pores (d < 10 nm) and a quantity of general acid centers compared with the granular catalyst. On the other hand, it shows a more significant oil viscosity decrease (from 2500 to 41 cPs) and a low rate of gas generation (137 mL/h) for the catalyst with highly porous support. A high oil fraction was observed in the presence of the (γ-Al2O3-zeolite Y)/α-Al2O3-HPCM compared to the granular catalyst. The presence of large transport cells (pores) 1500–2000 μ for the catalyst based on highly porous support allowed a work period four times longer than that of experiment only with temperature without catalysts.

Preparation of Fe‐based magnetic‐core‐supported Co and Ni catalyst: application in viscosity reduction of heavy oil hydrocracking

“…Supported bifunctional catalysts generally use porous acid carriers to provide cracking activity, such as alumina and molecular sieves, and are supported metal particles with hydrogenation activity. [14][15][16] The research of supported bifunctional catalysts is relatively mature, with the advantages of high viscosity reduction rate and adjustable pore size, but formed coke and metal impurities in heavy oil may deposit in the pores of catalysts and resulting in deactivation. 17 Xing et al 18 studied mild hydroprocessing in a fixed-bed reactor for the partial upgrading of Canadian bitumen (API gravity of 7.96°and viscosity of 591.24 cSt at 80 °C) at 9 MPa and 380-405 °C using a commercial NiMo/Al 2 O 3 catalyst.…”

“…Supported bifunctional catalysts generally use porous acid carriers to provide cracking activity, such as alumina and molecular sieves, and are supported metal particles with hydrogenation activity 14‐16 . The research of supported bifunctional catalysts is relatively mature, with the advantages of high viscosity reduction rate and adjustable pore size, but formed coke and metal impurities in heavy oil may deposit in the pores of catalysts and resulting in deactivation 17 .…”

Evaluation of the effective porosity of an open cell foam material for using in heat and mass transfer numerical simulations

“…Simultaneously, the porous structure's continuity makes it possible to remove or supply heat in a gaseous medium effectively. At the same time, the large surface area in combination with low resistance makes it possible to use OCF as catalysts for processes with wall surface reactions [9][10][11][12][13]. In [14][15][16][17][18], the use of wireless technologies in the field of automation of technological processes is considered, which can also be used to study heat transfer in OCF materials.…”