Composition and a process for preparation of attrition resistant cracking catalyst suitable for enhancing light olefins

Patent metadata

Field	Value
Publication number	US-10252249-B2
Application number	US-201615236899-A
Country	US
Kind code	B2
Filing date	Aug 15, 2016
Priority date	Aug 24, 2015
Publication date	Apr 9, 2019
Grant date	Apr 9, 2019

Abstract

The present invention relates to a composition of attrition resistant attrition resistant catalyst particularly for FCC catalyst additives such as ZSM-5, bottom cracking additive/residue upgradation additive and GSR additive comprising aluminum phosphate binder wherein said binder comprising of 1.5 to 2.9 moles equivalent of monobasic acid for each mole of mono-aluminum phosphate (MAP). Further, the aluminum phosphate binder is added to the catalyst additive to ensure effective binding of catalyst as well as preserving catalyst activity with high selectivity towards light olefins including LPG.

First claim

We claim:

1. An attrition resistant hydrocarbon cracking catalyst additive composition comprising 10-70% wt % zeolite, 5-20 wt % colloidal silica, 10-60 wt % clay, 1-10 wt % phosphate and 1-15 wt % aluminium phosphate binder, wherein the aluminium phosphate binder is a reaction product of mono aluminium phosphate and an aluminium compound in the mole ratio of 1:1 to 1:2.5: wherein said zeolite is selected from mordenite, ZSM-5, beta, ZSM-11 with silica alumina ratio ranging from 8 to 500.

2. The composition as claimed in claim 1 , wherein said additive has ABD above 0.75 gm/cc, AI based on ASTM D-5757 is less than 5 and average particle size is in the range of 80-100 microns.

3. The composition as claimed in claim 1 , wherein said aluminium compound is selected from salts of aluminum.

4. The composition as claimed in claim 3 , wherein said salts of aluminum are selected from the group comprising of aluminum nitrate, aluminum sulphate, alumina chloride, aluminum acetate and aluminum oxalate.

5. The composition as claimed in claim 4 , wherein said salts of aluminum in-situ generates monobasic acid.

6. The composition as claimed in claim 5 wherein the monobasic acid varies from 1.5 to 2.9 moles per mole of aluminum phosphate binder.

Assignees

• Indian Oil Corp Ltd

Inventors

• Kuvettu Mohan Prabhu
• Kadgaonkar Mahesh
• Sarkar Biswanath
• Karthikeyani Arumugam Velayutham
• Swamy Balaiah
• Karthikeyan Mani
• Christopher Jayaraj
• Kumar Brijesh

Classifications

• C10G11/182

  Regeneration · CPC title

• C01B25/36

  Aluminium phosphates · CPC title

• B01J2229/42

  Addition of matrix or binder particles · CPC title

• B01J2229/186

  not in framework positions · CPC title

• B01J37/0045

  Drying a slurry, e.g. spray drying · CPC title