Catalysts based on ZSM-23 zeolite in the process of oil feedstock iso-dewaxing
Abstract
The goal is to develop effective catalysts for iso-dewaxing process to reduce the pour point of oils and diesel fuels. Granular catalysts Pt/(ZSM-23–γ-Al2O3) with different contents of platinum and zeolite are synthesized. Physico-chemical properties of the catalysts are studied by XRD, TPD of ammonia, low-temperature nitrogen adsorption-desorption. Influence of catalysts composition and process conditions (1,0–3,0 MPa, 220–400 °С) on the performance iso-dewaxing of 280 °C-KK oil fraction, which is isolated from the products of hydrocracking of vacuum gas oil, was studied in a laboratory setting with a flow reactor. The highest yield, with the same values of fluidity temperature of products was obtained on the catalyst containing 0,30 wt.% platinum on support containing 20 wt.% zeolite ZSM-23 and 80 wt.% γ-Al2O3. Analysis of key performance indicators of iso-dewaxing catalysts based on zeolite ZSM-23 and dewaxing catalysts based on zeolite ZSM-5 showed that the catalysts based on ZSM-23 provide for the reception of dewaxed products with higher yield than laboratory and industrial catalysts based on ZSM-5.
About the Authors
D. N. Gerasimov
ООО «Объединенный центр исследований и разработок», г. Москва
Russian Federation
Russian Federation
V. V. Fadeev
ООО «Объединенный центр исследований и разработок», г. Москва
Russian Federation
Russian Federation
A. N. Loginovа
ООО «Объединенный центр исследований и разработок», г. Москва
Russian Federation
Russian Federation
S. V. Lysenko
ООО «Объединенный центр исследований и разработок», г. Москва
Russian Federation
Russian Federation
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Review
For citations:
Gerasimov D.N., Fadeev V.V., Loginovа A.N., Lysenko S.V. Catalysts based on ZSM-23 zeolite in the process of oil feedstock iso-dewaxing. Kataliz v promyshlennosti. 2013;(1):26-34. (In Russ.)
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