Rapid reducing method of catalyst

A catalyst and fast technology, applied in chemical instruments and methods, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve the problems of large hydrogen consumption, long catalyst reduction time, etc., achieve short reduction time, save hydrogen, time-saving effect

CN102335633AActive Publication Date: 2012-02-01CHINA PETROLEUM & CHEM CORP +1
1 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2012-02-01

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to a rapid reducing method of a catalyst. In order to solve the problems of long catalyst reduction time and large hydrogen consumption quantity in the industrial production at present, the inventor provides the method comprising the steps of: in a reduction process of the catalyst, online-analyzing concentrations of hydrogen in gas at an inlet of a reduction furnace and gasin an outlet of the reduction furnace in real time, loading an online analysis result to a catalyst reduction control system, and regulating the reduction temperature of the reduction furnace by the reduction control system according to the change of the online-analyzed concentrations of the hydrogen. By using the method, the automatic reduction control of the catalyst reduction furnace can be realized, the whole reduction process can be monitored, the whole reduction time of the catalyst is reduced, the consumption of the hydrogen is reduced, thus the processing period of the catalyst is greatly shortened and the processing cost of the catalyst is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a catalyst reduction method, more specifically, to a method for rapid catalyst reduction. 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 catalysts used in the petrochemical production process are solid catalysts, which are composed of three parts: carrier, auxiliary agent and active component, and the precursors of the active component are mostly metal salts. In industrial applications, most catalyst active components have catalytic activity only when metal atoms are supported on the carrier. Therefore, it is necessary to decompose the metal salt load...

Examples

Embodiment 1

[0026] The method of the present invention is applied to the nickel-based catalyst reduction process. The loading amount of nickel-based catalyst is 1.0m 3 , the heating rate is 10℃ / h, and the gas flow rate at the inlet of the reduction furnace is 500m 3 / h, the hydrogen concentration is 75%, and the specific steps of the traditional reduction method and the method of the present invention are shown in Table 1. The reduced catalyst is at 152°C and the volume space velocity of acetone is 0.5h -1 , Acetone: hydrogen: the mol ratio of ammonia is 1: 3: 3, and the evaluation result on the isopropylamine evaluation device that catalyst consumption is 50ml is shown in Table 2.

[0027] The specific operation of the method of the present invention is as follows: the heating rate of the reduction furnace is set to be 10° C. / h, and the inlet gas flow rate is 500 m 3 / h, the hydrogen concentration is 75%, turn on the reduction control program to increase the temperature, and analyze t...