WO2006048180 POROUS NIOBIC ACID CATALYST

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Publication Number WO/2006/048180

Publication Date 11.05.2006

International Application No. PCT/EP2005/011521

International Filing Date 27.10.2005

IPC

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CPC

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Applicants

COMPANHIA BRASILEIRA DE METALURGIA E MINERACAO [BR]/[BR] (AllExceptUS)
TELHADO PEREIRA, António [BR]/[BR] (UsOnly)
DE SOUZA MONTEIRO, Robson [BR]/[BR] (UsOnly)
ALVES DE LIVEIRA, Kensley [BR]/[BR] (UsOnly)
SCHMIDT, Friedrich [DE]/[DE] (UsOnly)

Inventors

TELHADO PEREIRA, António
DE SOUZA MONTEIRO, Robson
ALVES DE LIVEIRA, Kensley
SCHMIDT, Friedrich

Agents

STOLMÁR, Matthias

Priority Data

10 2004 052 696.6

29.10.2004

Publication Language German (de)

Filing Language German (DE)

Designated States

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Title

(DE) PORÖSER NIOBSÄUREKATALYSATOR

(EN) POROUS NIOBIC ACID CATALYST

(FR) CATALYSEUR A ACIDE NIOBIQUE POREUX

Abstract

(DE) Die vorliegende Erfindung stellt einen festen, Poren aufweisender sauren Katalysator bereit, umfassend im wesentlichen Niobsäure (Nb₂0₅ x H₂0), bestehend aus einer Mehrzahl von unregelmäßig angeordneten Schichten aus Primärkristall-Agglomeraten, wobei die Primärkristall Agglomerate eine Größe von weniger als 0,5 µm aufweisen. Der erfindungsgemäße Katalysator eignet sich insbesondere für die Säure-katalysierte Umlagerung von Kohlenwasserstoffen und daher beispielsweise auch für die Hydroisomerisierung von (höheren) Paraffinen. Weiter betrifft die Erfindung ein Verfahren zur Herstellung eines solchen Katalysators sowie die Verwendung des Katalysators.

(EN) The invention relates to a solid, porous acidic catalyst which substantially comprises niobic acid (Nb₂O₅ x H₂O) and which consists of a plurality of irregular layers from primary crystal agglomerates, said primary crystal agglomerates having a size of less than 0.5 µm. The inventive catalyst is especially suitable for the acid-catalyzed rearrangement of hydrocarbons and therefore for example for the hydroisomerization of (higher) paraffins. The invention also relates to a method for producing said catalyst and to the use of the catalyst.

(FR) L'invention concerne un catalyseur acide, solide, présentant des pores, comprenant sensiblement de l'acide niobique (Nb₂0₅ x H₂0), comprenant une pluralité de couches disposées de manière non régulière d'agglomérats de monocristaux, les agglomérats de monocristal présentant une grandeur d'au moins 0,5 µm. Le catalyseur de l'invention convient en particulier à la transformation catalytique acide d'hydrocarbures, et également à l'hydroisomérisation de paraffines (supérieures). De plus, l'invention concerne un procédé pour produire le catalyseur et son utilisation.

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23	Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
16	of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
20	Vanadium, niobium or tantalum

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23	Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
38	of noble metals
54	combined with metals, oxides or hydroxides provided for in groups B01J23/02-B01J23/36118
56	Platinum group metals
64	with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
648	Vanadium, niobium or tantalum

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37	Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
02	Impregnation, coating or precipitation
03	Precipitation; Co-precipitation

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35	Catalysts, in general, characterised by their form or physical properties
02	Solids
10	characterised by their surface properties or porosity

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
C	ACYCLIC OR CARBOCYCLIC COMPOUNDS
5	Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
22	by isomerisation
27	Rearrangement of carbon atoms in the hydrocarbon skeleton

Processing

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1. WO2006048180 - POROUS NIOBIC ACID CATALYST

B	PERFORMING OPERATIONS; TRANSPORTING
82	NANOTECHNOLOGY
Y	SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
30	Nanotechnology for materials or surface science, e.g. nanocomposites

C	CHEMISTRY; METALLURGY
01	INORGANIC CHEMISTRY
G	COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
33	Compounds of niobium

C	CHEMISTRY; METALLURGY
01	INORGANIC CHEMISTRY
P	INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004	Particle morphology
60	Particles characterised by their size
62	Submicrometer sized, i.e. from 0.1-1 micrometer

C	CHEMISTRY; METALLURGY
10	PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
G	CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION
45	Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
58	to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins
60	characterised by the catalyst used

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
C	ACYCLIC OR CARBOCYCLIC COMPOUNDS
2	Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
02	by addition between unsaturated hydrocarbons
04	by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
06	of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
08	Catalytic processes
14	with inorganic acids; with salts or anhydrides of acids

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
C	ACYCLIC OR CARBOCYCLIC COMPOUNDS
2	Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
02	by addition between unsaturated hydrocarbons
04	by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
06	of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
08	Catalytic processes
14	with inorganic acids; with salts or anhydrides of acids

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37	Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
0009	Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
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)