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Active metal component nonuniformly distributed hydrogenation catalyst and its preparation

A non-uniform distribution, hydrogenation catalyst technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as catalyst deactivation, and achieve a preparation method. Simple, good metal performance, low production cost effect

Active Publication Date: 2012-11-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The new type of catalytic material described in this patented formulation improves both demetallizing properties for heavier oils compared to previous methods while maintaining high levels of metals retained therein during use at very low costs. This makes it possible to produce more efficient catalysis products without increasing manufacturing complexity or requiring expensive materials like platinsum.

Problems solved by technology

This patented describes methods for improving the quality of crude oil refining processes involving various metals like iron, nickels, vanadiums, chromites, tungsten, cobalt, etc., while maintaining their effectiveness over longer periods under severe operating environments. These technical problem addressed include reducing unwanted reactions during processing, increasing durability of the resulting catalyzer due to increased concentrations of certain types of metal species involved, preventing damage caused by contaminants, controllably distributing them throughout the catalyser without losing any part of it altogether, ensuring stable operation even when subjected to extreme environmental factors including high temperatures, excessive loadings, and long residence times before being treated again.

Method used

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  • Active metal component nonuniformly distributed hydrogenation catalyst and its preparation
  • Active metal component nonuniformly distributed hydrogenation catalyst and its preparation
  • Active metal component nonuniformly distributed hydrogenation catalyst and its preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Take the aforementioned pseudo-boehmite wet bar and dry it at 200°C for 5 hours. The water absorption rate was measured to be 0.76.

[0050] Weigh 4.0g basic nickel carbonate, 9.0g molybdenum oxide, 1.7g phosphoric acid, add water and heat to dissolve into 109ml nickel molybdenum phosphorus solution, and impregnate 143g of the aforementioned carrier with the solution for 1 hour. After that, it was dried at 120°C for 4 hours to obtain a catalyst B1. The metal content and distribution of catalyst B1 are listed in Table 1.

Embodiment 2

[0052] Take the aforementioned pseudo-boehmite wet bar and dry it at 240°C for 5 hours. The water absorption rate was measured to be 0.76.

[0053] Weigh 2.5g basic cobalt carbonate, 6.0g molybdenum oxide, 1.2g phosphoric acid, add water and heat to dissolve into 109ml cobalt molybdenum phosphorus solution, and impregnate 143g of the aforementioned carrier with the solution for 1 hour. After that, it was dried at 120°C for 4 hours to obtain a catalyst B2. The metal content and distribution of catalyst B2 are listed in Table 1.

Embodiment 3

[0055] Take the aforementioned pseudo-boehmite wet bar and dry it at 240°C for 5 hours. The water absorption rate was measured to be 0.76.

[0056] Weigh 25.2g basic nickel carbonate, 64.4g molybdenum oxide, 12.0g phosphoric acid, add water and heat to dissolve into 429ml nickel molybdenum phosphorous solution, and supersaturate 143g of the aforementioned carrier with the solution to impregnate 143g for 5 hours. After filtration, it was dried at 120°C for 4 hours to obtain catalyst B3. The metal content and distribution of catalyst B3 are listed in Table 1.

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Abstract

Disclosed are an active metal component nonuniformly distributed hydrogenation catalyst and its preparation. The catalyst contains a formed hydrated alumina carrier, at least one metal salt of VIII group unprecious metal and at least one metal salt of VIB group metal loading on the carrier, wherein distribution is along radial cross section of the catalyst; the ratio of the external surface concentration to the center concentration of the VIII group metal component is 0.1-0.9; and the ratio of the external surface concentration to the center concentration of the VIB group metal component is 0.1-0.8. In comparison with present technological methods, the hydrogenation catalyst composition provided by the invention has excellent heavy oil hydrodemetallization performance and simultaneously has good miscible metal performance. In addition, the preparation method of the catalyst provided by the invention is simple, and the product cost of the catalyst is obviously lower than that of a catalyst prepared by present methods.

Description

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Claims

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Application Information

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Owner CHINA PETROLEUM & CHEM CORP
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