Catalyst comprising a phosphorous modified zeolite and having partly an ALPO structure

Patent metadata

Field	Value
Publication number	US-9790142-B2
Application number	US-201214236765-A
Country	US
Kind code	B2
Filing date	Jul 25, 2012
Priority date	Aug 3, 2011
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

A catalyst can include a phosphorus modified zeolite having partly an ALPO structure. The ALPO structure can be determined by a signal between 35-45 ppm in 27 Al MAS NMR spectrum. The zeolite can include at least one ten member ring in the structure thereof. The catalyst can also include a binder and one or more metal oxides. The catalyst can be used in processes in the presence of steam at high temperatures, such as temperatures that are above 300° C. and up to 800° C. The catalyst can be used in alcohol dehydration, olefin cracking, MTO processes, and alkylation of aromatic compounds with olefins and/or alcohols.

First claim

The invention claimed is:

1. A catalyst comprising:
a phosphorus modified zeolite, wherein the zeolite comprises at least one ten member ring in the structure thereof;
wherein the phosphorus modified zeolite has partly an ALPO structure, wherein the ALPO structure is determined by a signal between 35-45 ppm in 27 Al MAS NMR spectrum;
a binder; and
optionally one or more metals.

2. The catalyst of claim 1 , wherein the zeolite is MFI, MTT, FER, MEL, TON, MWW, EUO, or MFS.

3. The catalyst of claim 1 , wherein the zeolite is ZSM-5 with Si/Al atomic ratio ranging from 11 to 30, and wherein the zeolite has been made without direct addition of organic template.

4. The catalyst of claim 1 , wherein the zeolite is MFI with Si/Al atomic ratio ranging from 30 to 200.

5. The catalyst of claim 1 , wherein an amount of phosphorus on the catalyst is from 0.5 to 30 wt %.

6. The catalyst of claim 1 , wherein an amount of phosphorus on the catalyst is from 0.5 to 9 w %.

7. The catalyst of claim 1 , wherein the catalyst comprises the one or more metals.

8. The catalyst of claim 7 , wherein the one or more metals are alkaline earth or rare earth metals M.

9. The catalyst of claim 7 , wherein the one or more metals comprise Mg, Ca, Sr, Ba, La, Ce, or combinations thereof.

10. The catalyst of claim 1 , wherein the catalyst has a volume of pores between 30 Å and 1000 Å of at least 0.25 cc/g.

11. The catalyst of claim 1 , wherein the binder is substantially free of alumina or alumina salts.

12. The catalyst of claim 1 , wherein most of the Al atoms in the AlPO 4 phase originate from the zeolite or from a part of the binder.

13. The catalyst of claim 12 , wherein the part of the binder is clays.

Assignees

• Nesterenko Nikolai
• Minoux Delphine
• Adam Cindy
• Dath Jean-Pierre
• Total Res & Technology Feluy

Inventors

• Nesterenko Nikolai
• Minoux Delphine
• Adam Cindy
• Dath Jean-Pierre

Classifications

• C07C2529/80

  Mixtures of different zeolites · CPC title

• B01J37/0009

  Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst · CPC title

• C07C2529/40

  of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11 · CPC title

• B01J2229/183

  in framework positions · CPC title

• C07C2529/83

  Aluminophosphates (APO compounds) · CPC title