Catalyst heavy metal cycle pollution ageing reactor

Abstract

The invention discloses a catalyst heavy metal cycle pollution ageing reactor. The catalyst heavy metal cycle pollution ageing reactor comprises a reactor main body, a catalyst loading and unloading port, a feeding pipe, a gas outlet pipe, a grid, a spherical surface type tower plate and a gas inlet pipe; the reactor is divided into a settling section, an ageing section and a pre-distribution section from top to bottom; the cross sectional area of the reactor main body is shrunk from top to bottom; the grid is horizontally arranged at the ageing section of the reactor; the spherical surface type tower plate is arranged between the grid and the bottom end of the reactor; the feeding pipe passes through the upper part of the reactor and the grid and runs through the reactor to be positioned between the grid and the spherical surface type tower plate; the gas inlet pipe is arranged at the bottom of the reactor. The catalyst heavy metal cycle pollution ageing reactor provided by the invention is simple in structure, can flexibly switch hydrothermal ageing and heavy metal cycle pollution ageing, is simple in a cooling system, particularly adapts to requirements of high reaction temperature, large water vapor amount and long treatment time of cycle pollution ageing treatment, and can simulate the performance of an industrial balancing agent.

Description

Technical field [0001] The invention relates to a reactor with stable activity of a catalytic cracking catalyst in a laboratory, and more specifically, to a reactor for cyclically polluting and aging the catalytic cracking catalyst. Background technique [0002] Catalytic cracking technology is the main secondary processing technology for oil refineries. This technology converts heavy hydrocarbon oil feedstock into products such as gasoline, diesel, propylene and liquefied gas. [0003] During the operation of the catalytic cracking unit, the metal iron, nickel, vanadium, calcium and other metals in some heavy raw materials will contaminate the catalyst, reduce the catalyst activity, increase the heavy metal content on the catalyst, and affect the performance of the catalyst and the distribution of its products. Therefore, in the research process of catalytic cracking catalyst and process, it is necessary to perform hydrothermal aging and heavy metal pollution on the catalyst befo...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is mainly to provide a catalyst heavy metal circulating pollution aging reactor to overcome the problems of large amount of steam in the aging reactor and long aging treatment time in the prior art

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