# US 11,077,431 B2 · Bifunctional catalyst comprising phosphorous

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- Number: US 11,077,431 B2
- Document ID: US11077431B2
- Status: Granted
- Kind: B2
- Application number: 15/768,895
- Filed: 2016-11-30
- Published: 2020-07-30
- Granted: 2021-08-03
- Earliest claimed: 2015-11-30
- Assignees: Haldor Topsoe A/S
- Applicants: Haldor Topsøe A/S
- Inventors: Uffe Vie Mentzel; Finn Joensen
- Web page: https://patentgrep.com/patent/US11077431B2

## CPC

- B01J 29/405: {containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead}
- B01J 21/005: {Spinels}
- B01J 21/02: Boron or aluminium; Oxides or hydroxides thereof
- B01J 21/04: Alumina
- B01J 21/12: Silica and alumina
- B01J 23/005: {Spinels}
- B01J 23/06: of zinc, cadmium or mercury
- B01J 27/14: Phosphorus; Compounds thereof
- B01J 27/16: containing oxygen {, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr}
- B01J 29/40: of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
- B01J 29/85: Silicoaluminophosphates [SAPO compounds]
- B01J 29/90: Regeneration or reactivation
- B01J 35/19: {Catalysts containing parts with different compositions}
- B01J 35/397: {Egg shell like}
- B01J 35/398: {Egg yolk like}
- B01J 35/399: {homogeneously throughout the support particle}
- B01J 37/0018: {Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)}
- B01J 37/0201: {Impregnation}
- B01J 37/024: {Multiple impregnation or coating}
- B01J 37/08: Heat treatment {(B01J37/0009, B01J37/0018 take precedence)}
- B01J 37/088: {Decomposition of a metal salt}
- B01J 37/28: Phosphorising
- C07C 1/20: starting from organic compounds containing only oxygen atoms as heteroatoms
- C07C 1/22: by reduction
- C07C 29/152: characterised by the reactor used
- C07C 41/00: Preparation of ethers; Preparation of compounds having [IMAGE cpc-sch-C07C-0958.gif] groups,[IMAGE cpc-sch-C07C-0959.gif] groups or[IMAGE cpc-sch-C07C-0960.gif] groups
- C07C 41/01: Preparation of ethers
- C07C 43/043: {Dimethyl ether}
- C10G 3/45: {containing iron group metals or compounds thereof}
- C10G 3/49: {containing crystalline aluminosilicates, e.g. molecular sieves}
- C10G 35/00: Reforming naphtha
- C10G 50/00: Production of liquid hydrocarbon mixtures from lower carbon number hydrocarbons, e.g. by oligomerisation
- C01B 2203/1211: Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
- C01B 2203/1217: Alcohols
- C07C 2521/04: Alumina
- C07C 2527/14: Phosphorus; Compounds thereof
- C07C 2529/40: of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
- C10G 2300/70: Catalyst aspects
- C10G 2400/02: Gasoline
- C10G 2400/30: Aromatics
- Y02P 20/52: using catalysts, e.g. selective catalysts
- Y02P 20/582: Recycling of unreacted starting or intermediate materials
- Y02P 30/20: using bio-feedstock
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A bifunctional catalyst for example for conversion of oxygenates, said bifunctional catalyst comprising zeolite, alumina binder, Zn and P, wherein Zn is present at least partly as ZnAl2O4.

## Claims

### Claim 1

A process for conversion of a feed stream comprising methanol and/or DME to an aromatics rich hydrocarbon stream in presence of an at least partially spinelized bifunctional catalyst comprising zeolite, alumina binder, Zn and P, wherein the Zn and P is present in both the binder and the zeolite, the catalyst has a Zn content of more than 7 wt %, at least 95% of the Zn in the binder is present as ZnAl2O4, and the molar ratio of P/Zn is 0.02-5, wherein the aromatics rich hydrocarbon stream is separated into at least an aromatics rich product stream, a process condensate stream and an off gas stream, and where at least part of said off gas stream is recycled to the conversion reactor.

### Claim 2 (depends on 1)

Process according to claim 1 wherein H2 is at least partly removed from the off gas recycle.

### Claim 3 (depends on 1)

Process according to claim 1 further comprising an initial step of in situ further or fully spinelizing said at least partially spinelized bifunctional catalyst by steaming at 300° C.-550° C. in an atmosphere comprising steam.