US 9,518,229 B2 · Catalysts for thermo-catalytic conversion of biomass, and methods of making and using

Abstract

Disclosed are catalyst compositions including zeolite and silica components, methods of making, and processes of using in the thermo-catalytic conversion of biomass. Such disclosed methods of making include: i) spray drying of the catalyst precursor slurry at a pH below 1, or ii) the removal of ions such as sodium from the binder material prior to spray drying the catalyst precursor slurry at a pH below 2.7, or iii) spray drying the catalyst precursor including a pore regulating agent followed by steam treating, or iv) some combination of i), ii) and iii).

Claims13

Dependent claims

A method of making a biomass conversion catalyst comprising:

a) preparing an aqueous slurry comprising a phosphorous-promoted zeolite and a silica precursor, wherein the zeolite is selected from the group consisting of ZSM-5, mordenite, beta, ferrierite, zeolite-Y, and combinations thereof;
b) spray drying said aqueous slurry at a pH equal to or less than about 2.7, thereby gelling said silica precursor and forming a biomass conversion catalyst in the form of particles;
c) wet impregnating the biomass conversion catalyst with phosphorous;
and
d) drying the wet impregnated biomass conversion catalyst, forming a phosphorous-promoted biomass conversion catalyst.

2 more elements

A method of making a biomass conversion catalyst comprising:

a) preparing an aqueous slurry comprising:
(i) a phosphorous-promoted zeolite, wherein the zeolite is selected from the group consisting of ZSM-5, mordenite, beta, ferrierite, zeolite-Y, and combinations thereof, (ii) a silica precursor which is substantially sodium free, and (iii) a pore regulating agent selected from the group consisting of ionic pore regulating agents, nonionic pore regulating agents, and combinations thereof;
b) spray drying said aqueous slurry at a pH equal to or less than about 2.7, thereby gelling said silica precursor and forming said biomass conversion catalyst into particles;
wherein said particles have an average mesopore surface area (average MSA) less than or equal to about 50 m2/g, and wherein said biomass conversion catalyst has a salt concentration less than about 0.1 times the mass of said silica;
and
c) promoting the biomass conversion catalyst with phosphorous.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/838,706Filed 15 Mar 2013 · us provisional application

Priority

20 Jul 2012

Published

US 2014/0024866 A123 Jan 2014

Granted

13 Dec 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

C10G 1/086
With moving catalysts: characterised by the catalyst used
B01J 29/084
Of the faujasite type, e.g. type X or Y: y-type faujasite
B01J 29/18
Crystalline aluminosilicate zeolites; Isomorphous compounds thereof: of the mordenite type
B01J 29/40
Crystalline aluminosilicate zeolites; Isomorphous compounds thereof: of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by…

Catalysts for thermo-catalytic conversion of biomass, and methods of making and using

Life of this patent

Catalysts for thermo-catalytic conversion of biomass, and methods of making and using

Life of this patent

Abstract

Claims13