Device and a method for determining carbon deposition rate of catalytic reforming catalyst

Abstract

The invention relates to a device and a method for determining the carbon deposition rate of a catalytic reforming catalyst, and belongs to the field of tar steam reforming hydrogen production. In thedevice, a nitrogen steel cylinder is communicated with the feeding port of a quartz tube reactor through a gas flowmeter; a double-channel trace injection pump is communicated with the feeding port of the quartz tube reactor; a distribution net is arranged in the middle of the quartz tube reactor, and the periphery of the quartz tube reactor is provided with a heat preservation tube; the discharge port of the quartz tube reactor is sequentially connected with a condensation tube and a liquid collector; the gas outlet of the liquid collector is connected with a soap bubble flowmeter and a gaschromatograph separately; an electric heating tube is arranged between the heat preservation tube and the quartz tube reactor; and the electric heating tube is connected with an electric heating temperature controller. By adopting the device, carbon deposition is carried out on the catalytic reforming catalyst, and the carbon deposition rate of the catalytic reforming catalyst is calculated by adopting a program heating oxidation determination and calculation; and the method is used for researching the carbon deposition rate of the steam reforming hydrogen production catalyst, the data is accurate, and the effect of the carbon deposition rate can be really reflected.

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...

AI Technical Summary

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

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