Rare earth-containing y zeolite, preparation process thereof, and catalytic cracking catalyst containing the zeolite
AssigneesChina Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
InventorsYibin Luo, Chengqiang Wang, Jinyu Zheng, Xingtian Shu
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Abstract
A rare earth-containing Y zeolite has at least two mesopore pore-size distributions at 2-3 nanometers and 3-4 nanometers. A catalytic cracking catalyst contains the rare earth-containing Y zeolite. When used in the catalytic cracking of heavy oil, the catalytic cracking catalyst invention has excellent heavy oil conversion ability, higher gasoline yield, and lower coke selectivity.
Claims19
A rare earth-containing Y zeolite, having at least mesopore pore-size distributions at 2-3 nanometers, at 3-4 nanometers, and at 10-30 nanometers,
- wherein in a BJH pore-size distribution curve of the rare earth-containing Y zeolite,
- the ratio of the peak area for the pore-size distribution at 2-3 nanometers to the peak area for the pore-size distribution at 3-4 nanometers is 0.05-0.4,
- the ratio of the peak area for the pore-size distribution at 2-3 nanometers to the peak area of the total pores is greater than 0.1, and
- the ratio of the peak area for the pore-size distribution at 10-30 nanometers to the peak area of the total pores is greater than 0.2.
A catalytic cracking catalyst, wherein the catalytic cracking catalyst contains 20-60 wt % of the rare earth-containing Y zeolite according to claim 1, 10-30 wt % of inorganic oxide binder and 30-50 wt % of natural mineral.
Dependencies are inferred from the claim text.