High-speed temperature programmed reduction method for catalyst

Abstract

The invention relates to a high-speed temperature programmed reduction method for a catalyst. In order to solve the universal problems of long catalyst reduction time and great hydrogen consumption in present catalyst reduction equipment, the inventor puts forward the method of: during a catalyst reduction process, conducting on-line analysis for hydrogen concentrations in the inlet gas and outlet gas of a reduction furnace, and under a constant catalyst reduction space velocity, analyzing the difference of hydrogen concentrations at the inlet and outlet by a reduction control program, and adjusting the reduction temperature in the reduction furnace as well as the hydrogen concentration in the reduction gas. The method of the invention can guarantee the reduction of overall catalyst reduction time and the saving of hydrogen consumption based on fully reducing the catalyst, so that the overall processing period of the catalyst is substantially shortened and the catalyst production costis reduced, thus boasting extensive practical application value.

Description

technical field [0001] The present invention relates to a catalyst reduction method, and more particularly, to a method for rapid temperature-programmed reduction of catalysts. Background technique [0002] The rapid development of modern chemical industry, especially coal and petrochemical industry, thousands of chemical raw materials and commodity production are closely related to the development of industrial catalysts. The existence of catalyst not only promotes technological innovation in industrial production, but also provides a broad space for human production activities. Most of the finished catalysts used in the petrochemical production process are supported solid catalysts, which are composed of three parts: carrier, additive and active component, and the precursors of the active component are mostly metal salts. In industrial applications, most catalyst active components can only have good catalytic activity if they are loaded on the carrier in the state of meta...

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Problems solved by technology

[0004] Aiming at the common problems of long catalyst reduction time and large hydrogen consumption in current catalyst reduction devices, the inventors analyzed the hydrogen concentration in the inlet gas and outlet gas of the reduction furnace on-line on the basis of the existing operation. Under the same condition, use the reduction control program to analyze the difference between the inlet and outlet hydrogen concentrations to adjust the reduction temperature of the reduction furnace and the hydrogen concentration in the reduction gas

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