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A device and method for measuring the carbon deposition rate of a catalytic reforming catalyst

A catalytic reforming and catalyst technology, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of inability to judge, the catalyst carbon deposition rate is very different, and reduce the catalytic reforming catalyst carbon deposition rate, etc., and achieve accurate measurement results. , the effect of reducing the size

Active Publication Date: 2021-09-28
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the biomass gasification and catalytic reforming equipment capable of continuously feeding biomass to produce hydrogen now has large-scale laboratory-scale gasification units and catalytic reforming units, and the data fluctuates greatly during the test process. , the carbon deposition rate of the catalyst measured under the same experimental conditions is also very different, so it is impossible to judge whether the implemented solution can really reduce the carbon deposition rate of the catalytic reforming catalyst

Method used

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  • A device and method for measuring the carbon deposition rate of a catalytic reforming catalyst
  • A device and method for measuring the carbon deposition rate of a catalytic reforming catalyst
  • A device and method for measuring the carbon deposition rate of a catalytic reforming catalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0047] In this example, in order to study whether adding hydrogen peroxide in the reforming reactant water vapor can reduce the carbon deposition rate of the catalytic reforming catalyst during the hydrogen production process of the steam reforming of tar, a method for measuring the carbon deposition rate of the catalytic reforming catalyst is adopted. device, its structure diagram is shown in figure 1 , including: gas supply system, feed system, reaction system, product analysis system, electric heating control system;

[0048] Described gas supply system comprises nitrogen cylinder 1 and gas flowmeter 3;

[0049] The feed system includes a dual-channel micro-injection pump 2; in the dual-channel micro-injection pump 2, biomass tar is injected into the first channel, and water and hydrogen peroxide mixture are injected into the second channel; wherein, the mass of hydrogen peroxide accounts for The mass percentage of water and hydrogen peroxide mixture is 3%.

[0050] Descr...

Embodiment 2

[0079] A device for measuring the carbon deposition rate of a catalytic reforming catalyst, the same as Experimental Example 1.

[0080] A method for measuring the carbon deposition rate of a catalytic reforming catalyst, using the above-mentioned device, comprising the following steps:

[0081] (1) the catalytic reforming catalyst is loaded on the distribution net 9 in the quartz tube reactor 4;

[0082] (2) Nitrogen cylinder 1 is opened, nitrogen gas flow rate 1-10L / min is controlled by gas flowmeter 3, and the environment in quartz tube reactor 4 is purged to inert atmosphere;

[0083] (3) The electric heating temperature controller 7 is set as the reaction temperature, and the electric heating tube 6 heats the quartz tube reactor 4. After the temperature of the quartz tube reactor 4 reaches the reaction temperature, the nitrogen gas is adjusted by the gas flow meter 3 Flow 0.2-0.5L / min;

[0084] (4) After the tar and water of the double-channel micro-injection pump 2 are...

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Abstract

A device and method for measuring the carbon deposition rate of catalytic reforming catalysts belong to the field of hydrogen production by steam reforming of tar. In this device, the nitrogen cylinder is connected to the feed port of the quartz tube reactor through the gas flow meter; the dual-channel micro-injection pump is connected to the feed port of the quartz tube reactor; Insulation tubes are arranged around, and the discharge port of the quartz tube reactor is connected to the condensation tube and the liquid collector in turn, and the gas outlet of the liquid collector is connected to the soap bubble flowmeter and the gas chromatograph respectively; The electric heating tube is connected with the electric heating temperature controller. The device is used to carry out carbon deposition on the catalytic reforming catalyst, and the carbon deposition rate of the catalytic reforming catalyst is measured and calculated by temperature-programmed oxidation. This method is used to study the carbon deposition rate of the steam reforming hydrogen production catalyst. The data is accurate and can be used. It truly reflects the effect of carbon deposition rate.

Description

technical field [0001] The invention relates to the technical field of hydrogen production by steam reforming of tar, in particular to a device and method for measuring the carbon deposition rate of a catalytic reforming catalyst. Background technique [0002] Due to the combination of renewable energy and clean energy and other environmental protection technologies, biomass gasification hydrogen production has become a very promising technology. This technology puts biomass at high temperature and undergoes pyrolysis, hydrolysis, oxidation, reduction, etc. A series of thermochemical reactions generate H 2 , CO 2 , CO, CH 4 The main product gas, after which high-purity hydrogen is produced through steam reforming, water-gas shift, separation and compression of PSA hydrogen. But in the process of pyrolysis and gasification, a by-product, tar, will inevitably be produced. It is a dark brown viscous liquid, and its main chemical composition includes two types: one is aromat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 张尤华段林海周婷孟秀红秦慧博曹水
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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