TY  - JOUR
AU  - Huseynova, Galina
AU  - Aliyeva, Nushaba
AU  - Gаsimоvа, Gular
PY  - 2023
DA  - 2023/08/10
TI  - Research and Application of Modified ZSM-5 for the Process of Alkylation of Oil Distillate Fractions
JO  - Catalysis Research
SP  - 021
VL  - 03
IS  - 03
AB  - In the oil distillate fraction alkylation process, a modified Zr zeolite ZSM-5 was obtained and studied. The modification was executed using a method that impregnated ZSM-5 with a 5% solution of ZrOCl2∙6H2O. X-ray diffraction studies were conducted on zeolite ZSM-5, zirconyl chloride modifier ZrOCl2∙6H2O, and modified zeolite ZSM-5-ZrO2, which was calcined at temperatures of 200, 400, and 550°C. The results revealed that the phase composition of modified ZSM-5-ZrO2 zeolite samples varied depending on the calcination temperature. It was determined that only at a temperature of 550°C did the modified ZSM-5 catalyst contain three phases belonging to ZrSi24O50, ZrO2, and ZSM-5. The emergence of the ZrO2 phase occurred at a calcination temperature of 550°C. An increase in temperature from 200 to 550°C facilitated the transition of the amorphous phase to the crystalline phase. The crystal structure of the ZSM-5-ZrO2 catalyst, calcined at 550°C, contributed to a rise in its activity. Consequently, during alkylation with catalytic cracking gases, the viscosity-temperature properties of the T-30 turbine oil distillate fraction significantly improved (the viscosity index increased from 49.9 to 137). An increase in zeolite ZSM-5 activity was demonstratd due to the introduction of zirconium and an elevated calcination temperature to 550°C.
SN  - 2771-490X
UR  - https://doi.org/10.21926/cr.2303021
DO  - 10.21926/cr.2303021
ID  - Huseynova2023
ER  -