Catalyst containing metal cluster in structurally collapsed zeolite, and use thereof

Patent metadata

Field	Value
Publication number	US-10155219-B2
Application number	US-201414784214-A
Country	US
Kind code	B2
Filing date	Apr 22, 2014
Priority date	Apr 22, 2013
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

This invention relates to a hydrogen spillover-based catalyst and use thereof, wherein a hydrogen activation metal cluster is dispersed in the form of being encapsulated in a crystalline or amorphous aluminosilicate matrix which is partially or fully structurally collapsed zeolite, thereby exhibiting high hydroprocessing or dehydrogenation activity and suppressed C—C hydrogenolysis activity.

First claim

The invention claimed is:

1. A hydrogen spillover-based catalyst, comprising:
crystalline or amorphous aluminosilicate formed by partial or full structural collapse of zeolite having a silica/alumina molar ratio of 2 or less, wherein the zeolite is P-type zeolite, A-type zeolite or X-type zeolite; and
a hydrogen activation metal (M) cluster encapsulated in the aluminosilicate,
wherein the hydrogen activation metal (M) cluster is incorporated into the zeolite using impregnation or ion-exchange, the metal cluster-incorporating zeolite is ion-exchanged with an ammonium ion (NH 4 + ), and the ion-exchanged zeolite is thermally treated,
wherein changes in hydrogen and carbon monoxide chemisorption amounts depending on a temperature satisfy the following relation:
0.7*( H/M 373 +H/M 473 +H/M 573 )/3>( CO/M 373 +CO/M 473 +CO/M 573 )/3

wherein H/M is a chemisorption amount (mol) of a hydrogen atom per total mol of M, CO/M is a chemisorption amount (mol) of carbon monoxide per total mol of M, and subscripts represent adsorption temperatures (K).

2. The hydrogen spillover-based catalyst of claim 1 , wherein the silica/alumina molar ratio of zeolite is 1˜2.

3. The hydrogen spillover-based catalyst of claim 1 , wherein upon partial or full structural collapse of zeolite, an XRD (X-ray Diffraction) pattern of the catalyst shows the following:
0.8(Main P zeotite ) >(Main P collapse )
wherein MainP zeolite is a area of the highest peak among XRD peaks of zeolite before collapse, and MainP collapse is a base area of an XRD peak at the same 2θof zeolite after collapse.

4. The hydrogen spillover-based catalyst of claim 1 , wherein the hydrogen activation metal is any one or more selected from the group consisting of Groups IB, VIIB and VIII metals on a periodic table.

5. The hydrogen spillover-based catalyst of claim 1 , wherein the metal cluster has a diameter of 0.5 ˜50 nm.

6. The hydrogen spillover-based catalyst of claim 1 , wherein an alkali metal/Al molar ratio in the aluminosilicate is 0.9 or less.

7. The hydrogen spillover-based catalyst of claim 1 , wherein an alkaline earth metal/Al molar ratio in the aluminosilicate is 0.45or less.

8. The hydrogen spillover-based catalyst of claim 1 , wherein the amorphous aluminosilicate has micropores with a diameter of less than 0.29nm at room temperature.

Assignees

• Sk Innovation Co Ltd
• Korea Advanced Inst Sci & Tech

Inventors

• Choi Min Kee
• Im Ju Hwan
• Kim Do Woan
• Kim Do Kyoung
• Kim Tae Jin
• Oh Seung Hoon
• Seok Tae Hong

Classifications

• C01B39/026

  After-treatment · CPC title

• B01J29/7003

  A-type · CPC title

• C10G45/00

  Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds · CPC title

• C10G45/60

  characterised by the catalyst used · CPC title

• B01J29/082

  X-type faujasite · CPC title