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Catalyst containing a modified Y-type zeolite and a preparation process thereof
US9630171B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9630171-B2 |
| Application number | US-201313929044-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 27, 2013 |
| Priority date | Jun 27, 2012 |
| Publication date | Apr 25, 2017 |
| Grant date | Apr 25, 2017 |
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Abstract
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The present invention discloses a catalytic cracking catalyst and a preparation process therefor. The catalytic cracking catalyst comprises a cracking active component, 10 wt %-70 wt % of a clay on the dry basis, and 10 wt %-40 wt % of an inorganic oxide binder (as oxide), relative to the weight of the catalytic cracking catalyst, wherein said cracking active component contains, relative to the weight of the catalytic cracking catalyst, 10 wt %-50 wt % of a modified Y-type zeolite on the dry basis and 0-40 wt % of other zeolite on the dry basis, wherein said modified Y-type zeolite is characterized by having a unit cell size of 2.420-2.440 nm; as percent by weight of the modified Y-type zeolite, a phosphorus content of 0.05-6%, a RE 2 O 3 content of 0.03-10%, and an alumina content of less than 22%; and a specific hydroxy nest concentration of less than 0.35 mmol/g and more than 0.05 mmol/g.
First claim
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What is claimed is: 1. A catalytic cracking catalyst, which comprises a cracking active component, 10 wt %-70 wt % of a clay on the dry basis, and 10 wt %-40 wt % of an inorganic oxide binder (as oxide), relative to the weight of the catalytic cracking catalyst, wherein said cracking active component contains, relative to the weight of the catalytic cracking catalyst, 10 wt %-50 wt % of a modified Y-type zeolite on the dry basis and 0-40 wt % of other zeolite on the dry basis, wherein said modified Y-type zeolite is characterized by having a unit cell size of 2.420-2.440 nm; as percent by weight of the modified Y-type zeolite, a phosphorus content of 0.05-6%, a RE 2 O 3 content of 0.03-10%, and an alumina content of less than 22%; and a specific hydroxy nest concentration of less than 0.35 mmol/g and more than 0.05 mmol/g, said specific hydroxy nest concentration = [ ( M 500 ° C . - M 200 ° C . ) - ( 17 / 9 ) × ( M 800 ° C . - M 500 ° C . ) ] × 1000 36 × ( 1 - M 200 ° C . ) × C ( Unit : mmol / g ) wherein M 200° C. , M 500° C. and M 800° C. respectively represent the weight loss percents of a sample measured at 200° C., 500° C. and 800° C., and C is the crystallinity of the sample; wherein said other zeolite is selected from one or more of the following: Y-type zeolite selected from REY, REHY, DASY, USY, and REUSY; Mg-containing ultra stable Y-type zeolite; rare-earth modified, gas-phase ultra stable Y-type zeolite and rare earth-containing, acid-treated, hydrothermally dealuminated Y-type zeolite; MFI-structured zeolite selected from ZSM-5, ZRP, and ZSP; Beta zeolite; and non-zeolite molecular sieve selected from SAPO and a titanium silicate molecular sieve. 2. The catalytic cracking catalyst according to claim 1 , wherein said unit cell size is 2.428-2.438 nm; as percent by weight of the modified Y-type zeolite, the phosphorus content is 0.1-4.5%, the RE 2 O 3 content is 0.1-4.5%, the alumina content is less than 21%; the specific hydroxy nest concentration is less than 0.3 mmol/g and more than 0.10 mmol/g. 3. The catalytic cracking catalyst according to claim 1 , wherein said c
Assignees
Inventors
Classifications
Ion-exchange · CPC title
Steaming · CPC title
not in framework positions · CPC title
Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat) · CPC title
Phosphorising · CPC title
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- What does patent US9630171B2 cover?
- The present invention discloses a catalytic cracking catalyst and a preparation process therefor. The catalytic cracking catalyst comprises a cracking active component, 10 wt %-70 wt % of a clay on the dry basis, and 10 wt %-40 wt % of an inorganic oxide binder (as oxide), relative to the weight of the catalytic cracking catalyst, wherein said cracking active component contains, relative to the…
- Who is the assignee on this patent?
- Long Jun, Ren Fei, Zhu Yuxia, and 11 more
- What technology area does this patent fall under?
- Primary CPC classification B01J29/088. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 25 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).