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Hydrodesulphurization catalyst activity measuring method and device for implementing the method

A catalyst and activity technology, applied in the field of in-situ vulcanization thermogravimetric analysis, can solve the problems of long micro-reverse vulcanization experiment period and inability to obtain catalyst vulcanization degree

Active Publication Date: 2010-12-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the micro-reversal sulfidation test cycle is long, requiring more than 4 hours of experimental process, and the direct experimental data of catalyst sulfidation degree cannot be obtained.

Method used

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  • Hydrodesulphurization catalyst activity measuring method and device for implementing the method
  • Hydrodesulphurization catalyst activity measuring method and device for implementing the method
  • Hydrodesulphurization catalyst activity measuring method and device for implementing the method

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Experimental program
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Effect test

Embodiment

[0055] Reagents and instruments

[0056] Co-Mo / γ-Al in a series of oxidation states 2 o 3 Catalyst and γ-Al 2 o 3 Provided by the Hydrogenation Catalyst Laboratory of the Academy of Petrochemical Sciences; 99.9% H 2 S gas was provided by Beijing Haipu Gas Co., Ltd., high-purity H 2 , N 2 From the Gas Plant of the Academy of Petrochemical Sciences.

[0057] TA 951 Thermogravimetric Analyzer, manufactured by DuPont Instruments.

[0058] Catalyst sample preparation

[0059] TG analysis samples: four catalyst samples of D1, D2, D3 and D4 are supported by Al 2 o 3 , The impregnation solution is ammonium molybdate and cobalt nitrate. After impregnating the active components on the carrier with pore saturation, activation treatment was performed at 90°C, 200°C, 250°C and 300°C for 3 hours respectively. The four catalyst samples had the same metal loading, 20% by weight of CoO, MoO 3 The weight percentage is 4.7%.

[0060] In-situ vulcanization thermogravimetric ana...

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Abstract

The invention provides an in-situ vulcanization thermogravimetric analysis method and a method for determining hydrodesulfurization catalyst activity, and devices for implementing the methods. The in-situ vulcanization thermogravimetric analysis method comprises the following steps of: placing a sample to de analyzed into an in-situ vulcanization thermogravimetric analysis device with inert atmosphere; increasing the temperature of the sample to be analyzed to a first temperature with a first heating up speed, dehydrating with constant temperature, and decreasing the temperature to a second temperature; increasing the temperature of the sample to be analyzed to a third temperature with a second heating up speed, introducing H2 and H2S, and increasing the temperature to a fourth temperature with the second heating up speed, keeping at the fourth temperature for 0.5-2h, decreasing the temperature after a TG curve is stable, and obtaining the weighting percentage of the sample to be analyzed from the TG curve.

Description

technical field [0001] The invention relates to an in-situ sulfidation thermogravimetric analysis method, a method for measuring the activity of a hydrodesulfurization catalyst and a device for implementing the method, more specifically, a CoMo / γ-Al 2 o 3 The invention relates to an in-situ sulfidation thermogravimetric analysis method of a hydrodesulfurization catalyst, a method for measuring the activity of the catalyst and a device for implementing the method. Background technique [0002] Hydrodesulfurization is a very important process in petroleum processing. Its main function is to remove impurity sulfur in oil products, so that the products meet the specifications of vehicle fuels or provide high-quality raw materials for subsequent oil refining processes. At present, the hydrodesulfurization catalysts used in industry basically use the sulfide of VIB metal Mo or W as the main catalyst, use the sulfide of VIII metal Co or Ni as the co-catalyst, and use activated alu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/00G01N31/10
Inventor 方胜良徐广通
Owner CHINA PETROLEUM & CHEM CORP