FCC CATALYST ADDITIVE WITH PSEUDO SOLID STATE CRYSTALLIZED ZEOLITE
The present invention is related to a process for the preparation of zeolitic material through condensed gel crystallizations and their use in an FCC Catalyst Additive composition. The present disclosure describes methods for improved preparation of zeolites by preparing an aqueous precursor mixture; removing at least 5 wt % of the total water from the aqueous precursor solution to create a solution with greater solids content; crystallizing the solution of step (b) to create a zeolite product. The resulting zeolite is used in an FCC Catalyst Additive composition comprising about 10 to about 70% wt % one or more zeolites, 0 wt % to about 25 wt % silica; 0 to about 50 wt % added alumina; and 0 to about 20% P2O5.
1 . An FCC catalyst additive composition comprising:
a. about 10 to about 70% wt % one or more mesoporous zeolites
b. 0 wt % to about 25 wt % silica;
c. 0 to about 50 wt % added alumina;
d. 0 to about 20% P2O5; and
e. the balance clay.
2 . The FCC catalyst additive composition of claim 1 wherein the one or more mesoporous zeolites are pentasil type zeolites.
3 . The FCC catalyst additive composition of claim 1 wherein the one or more mesoporous zeolites are prepared by the following steps:
a. preparing an aqueous precursor mixture;
b. removing at least 5 wt % of the total water from the aqueous precursor solution to create a solution with greater solids content;
c. crystallizing the solution of step (b) to create a zeolite product.
4 . The FCC catalyst additive composition of claim 2 wherein the zeolite preparation further comprises:
a. preparing an aqueous precursor mixture from water, a silicon source, an aluminum source;
b. removing at least 5 wt % of the total water from the aqueous precursor solution to create a solution with greater solids content;
c. crystallizing the solution of step (b) to create an aluminosilicate composition.
5 . The FCC catalyst additive composition of claim 2 wherein at least 10 wt % of the total water is removed from the aqueous precursor.
6 . The FCC catalyst additive composition of claim 2 wherein at least 25 wt % of the total water is removed from the aqueous precursor.
7 . The FCC catalyst additive composition of claim 2 wherein at least 50 wt % of the total water is removed from the aqueous precursor.
8 . The FCC catalyst additive composition of claim 2 wherein at least 75 wt % of the total water is removed from the aqueous precursor.
9 . The FCC catalyst additive composition of claim 2 wherein at least 90 wt % of the total water is removed from the aqueous precursor.
10 . The FCC catalyst additive composition of claim 2 comprising a further step of rehydrating the product of step (b) to create a solution with greater than about 15 wt % solids prior to step (c).
11 . The FCC catalyst additive composition of claim 2 wherein step (c) comprises reacting the solution of step (b) at 60-300° C. for 1 minute to 48 hours and allowed to crystallize.
12 . The FCC catalyst additive composition of claim 2 wherein the water is removed by filtration, spraydrying or thermal treatment.
13 . The FCC catalyst additive composition of claim 4 wherein the water is removed by thermal treatment at a time and temperature to create a xerogel with a solids content of greater than 35 wt % solids.
14 . The FCC catalyst additive composition of claim 4 wherein the water is removed by spraydrying to create a flowable powder with greater than 40 wt % solids.
15 . The FCC catalyst additive composition of claim 13 wherein the spraydrying results in a composition of at least 75 wt % solids.
16 . The FCC catalyst additive composition of claim 14 wherein the spraydrying results in a composition of at least 80 wt % solids.
17 . The FCC catalyst additive composition of claim 4 wherein the water is removed by filtration to create a filtered gel of greater than about 25 wt % solids.
18 . The FCC catalyst additive composition of claim 16 wherein the filtered gel is further thermally treated to create a dry filtered powder of at least 35 wt % solids.
19 . The FCC catalyst additive composition of claim 10 wherein the rehydrated solution is aged for a period of time prior to the crystallizing of step (c).
20 . A process which comprises contacting a catalyst composition of the FCC catalyst of claim 1 with a hydrocarbon feed, a waste derived feedstock, a bioderived feedstock, or a mixtures thereof.
21 . A process for the preparation of a FCC catalyst additive composition comprising the steps of preparing a slurry comprising one or more mesoporous zeolites, a silica source, an alumina source, and a phosphorous source, wherein one or more mesoporous zeolites are prepared by the following steps:
a. preparing an aqueous precursor mixture;
b. removing at least 5 wt % of the total water from the aqueous precursor solution to create a solution with greater solids content;
c. crystallizing the solution of step (b) to create a zeolite product.
22 . The process for the preparation of a FCC catalyst additive composition of claim 21 wherein the zeolite preparation further comprises:
a. preparing an aqueous precursor mixture from water, a silicon source, an aluminum source;
b. removing at least 5 wt % of the total water from the aqueous precursor solution to create a solution with greater solids content;
c. crystallizing the solution of step (b) to create an aluminosilicate composition.
23 . The process for the preparation of a FCC catalyst additive composition of claim 21 wherein at least 10 wt % of the total water is removed from the aqueous precursor.
24 . The process for the preparation of a FCC catalyst additive composition of claim 21 wherein at least 25 wt % of the total water is removed from the aqueous precursor.
25 . The process for the preparation of a FCC catalyst additive composition of claim 21 wherein at least 50 wt % of the total water is removed from the aqueous precursor.
26 . The process for the preparation of a FCC catalyst additive composition of claim 21 wherein at least 75 wt % of the total water is removed from the aqueous precursor.
27 . The process for the preparation of a FCC catalyst additive composition of claim 21 wherein at least 90 wt % of the total water is removed from the aqueous precursor.
28 . The process for the preparation of a FCC catalyst additive composition of claim 21 comprising a further step of rehydrating the product of step (b) to create a solution with greater than about 15 wt % solids prior to step (c).
29 . The process for the preparation of a FCC catalyst additive composition of claim 21 wherein step (c) comprises reacting the solution of step (b) at 60-300° C. for 1 minute to 48 hours and allowed to crystallize.
30 . The process for the preparation of a FCC catalyst additive composition of claim 21 wherein the water is removed by filtration, spraydrying or thermal treatment.
31 . The process for the preparation of a FCC catalyst additive composition of claim 23 wherein the water is removed by thermal treatment at a time and temperature to create a xerogel with a solids content of greater than 35 wt % solids.
32 . The process for the preparation of a FCC catalyst additive composition of claim 23 wherein the water is removed by spraydrying to create a flowable powder with greater than 40 wt % solids.
33 . The process for the preparation of a FCC catalyst additive composition of claim 31 wherein the spraydrying results in a composition of at least 75 wt % solids.
34 . The process for the preparation of a FCC catalyst additive composition of claim 33 wherein the spraydrying results in a composition of at least 80 wt % solids.
35 . The process for the preparation of a FCC catalyst additive composition of claim 23 wherein the water is removed by filtration to create a filtered gel of greater than about 25 wt % solids.
36 . The process for the preparation of a FCC catalyst additive composition of claim 35 wherein the filtered gel is further thermally treated to create a dry filtered powder of at least 35 wt % solids.
37 . The process for the preparation of a FCC catalyst additive composition of claim 21 wherein the slurry comprises:
a. about 10 to about 70% wt % one or more mesoporous zeolites
b. 0 wt % to about 25 wt % silica;
c. 0 to about 50 wt % added alumina;
d. 0 to about 20% P2O5
38 . The process for the preparation of a FCC catalyst additive composition of claim 28 wherein the rehydrated solution is aged for a period of time prior to the crystallizing of step (c).
39 . The process of claim 21 wherein the crystallization step (c) is thermally treated at one or more temperatures.