Nickel modified HY molecular sieve oxygen carrier with three-dimensional porous structure as well as preparation and application thereof

A porous structure, three-dimensional technology, applied in molecular sieve catalysts, inorganic chemistry, hydrogen, etc., can solve the problems of complex liquid phase product components, complicated refining process, difficult large-scale application, etc., and achieve good metal particle dispersion and catalytic effect , The process is simple and easy, and the effect of low cost

Active Publication Date: 2020-11-24
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The liquid phase products produced by pyrolysis are complex in composition and contain various harmful substances including tar, benzene and benzene derivatives, and cannot be used directly
In addition, the liquid phase product has high water content and is mostly acidic, and it is easy to separate during storage. It needs further deep processing to make chemicals to have application prospects, and the refining process is complicated, which greatly increases the cost of application. In actual production Difficult to apply on a large scale

Method used

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  • Nickel modified HY molecular sieve oxygen carrier with three-dimensional porous structure as well as preparation and application thereof
  • Nickel modified HY molecular sieve oxygen carrier with three-dimensional porous structure as well as preparation and application thereof
  • Nickel modified HY molecular sieve oxygen carrier with three-dimensional porous structure as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Oxygen carrier preparation:

[0048] Take 29.081g Ni(NO 3 ) 2 ·6H 2O, 52.821g NaY molecular sieve (silicon to aluminum ratio is 4.8) and 106.89g NH 4 Dissolve Cl in 1L of distilled water, stir the mixture in the beaker with a magnetic stirrer at a speed of 550r / min at room temperature for 2 hours, then slowly drop 1mol / L ammonium carbonate solution into the solution with a rubber dropper until the solution pH = 3.4, continue to stir until the solution becomes a colloidal suspension. Dry the suspension at 105°C for 12h in a blast drying oven, put the dried solid into a muffle furnace, and calcinate at 400°C for 2h and then at 900°C for 4h in an air atmosphere. After cooling to room temperature, a Ni / HY oxygen carrier is obtained, wherein the mass content of Ni is 10%, and the mass content of HY molecular sieve is 90%.

[0049] Catalyst activity evaluation:

[0050] The chemical chain reformation reaction of wood vinegar is carried out on a small fixed bed device. F...

Embodiment 2

[0054] Oxygen carrier preparation:

[0055] Take 29.081g Ni(NO 3 ) 2 ·6H 2 O, 23.455g NaY molecular sieve (silicon to aluminum ratio is 4.8) and 106.89g NH 4 Dissolve Cl in 1L of distilled water, stir the mixture in the beaker with a magnetic stirrer at a speed of 550r / min at room temperature for 2 hours, then slowly drop 1mol / L ammonium carbonate solution into the solution with a rubber dropper until the solution pH = 3.4, continue to stir until the solution becomes a colloidal suspension. Dry the suspension at 105°C for 12h in a blast drying oven, put the dried solid into a muffle furnace, and calcinate at 400°C for 2h and then at 900°C for 4h in an air atmosphere. After cooling to room temperature, a Ni / HY oxygen carrier was obtained, wherein the mass content of Ni was 20%, and the mass content of HY molecular sieve was 80%.

[0056] Catalyst activity evaluation:

[0057] The chemical chain reformation reaction of wood vinegar is carried out on a small fixed bed devic...

Embodiment 3

[0059] Oxygen carrier preparation:

[0060] Take 29.081g Ni(NO 3 ) 2 ·6H 2 O, 23.455g NaY molecular sieve (silicon to aluminum ratio is 4.8) and 106.89g NH 4 Dissolve Cl in 1L of distilled water, stir the mixture in the beaker with a magnetic stirrer at a speed of 550r / min at room temperature for 2 hours, then slowly drop 1mol / L ammonium carbonate solution into the solution with a rubber dropper until the solution pH = 3.4, continue to stir until the solution becomes a colloidal suspension. Dry the suspension at 105°C for 12h in a blast drying oven, put the dried solid into a muffle furnace, and calcinate at 400°C for 2h and then at 900°C for 4h in an air atmosphere. After cooling to room temperature, a Ni / HY oxygen carrier was obtained, wherein the mass content of Ni was 20%, and the mass content of HY molecular sieve was 80%.

[0061] Catalyst activity evaluation:

[0062] The chemical chain reformation reaction of wood vinegar is carried out on a small fixed bed devic...

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Abstract

The invention discloses a nickel modified HY molecular sieve oxygen carrier with a three-dimensional porous structure as well as preparation and application thereof. An HY molecular sieve is used as acarrier, transition metal is introduced to modify the molecular sieve, and the loading amount of the transition metal in the obtained metal modified HY oxygen carrier is 5-25%, thereby enhancing thecatalytic and oxygen-carrying capacities of the three-dimensional porous HY molecular sieve; a pyrolysis liquid phase product can be converted into hydrogen-rich synthesis gas under a certain reactioncondition; and the ratio of H2 to CO in the synthesis gas can be regulated and controlled to be about 0.5-3.0 by adjusting the reaction working condition, so that further Fischer-Tropsch synthesis isfacilitated.

Description

technical field [0001] The invention belongs to the technical field of syngas reforming by chemical chain reforming, and in particular relates to a nickel-modified HY molecular sieve oxygen carrier with a three-dimensional porous structure and its preparation and application. Background technique [0002] Hydrogen, which has the advantages of high energy density and zero carbon emissions after combustion, is considered as an environmentally friendly and clean energy carrier. Hydrogen can be used in many industries, such as fertilizer industry, petrochemical industry, fuel cells, etc. At the same time, hydrogen is also used as a clean energy carrier for a series of applications, such as transportation, heating and energy storage. Therefore, among many energy sources, hydrogen energy has attracted widespread attention due to its environmental friendliness. At present, almost all hydrogen production in the world comes from fossil energy, but CO is also produced in the process....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/14C01B3/32C01B3/40
CPCB01J29/146B01J2229/186C01B3/326C01B3/40C01B2203/0233Y02P20/52
Inventor 胡志锋苗桢武蒋恩臣吴家威
Owner SOUTH CHINA AGRI UNIV
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