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Hydrocracking catalyst with high metal dispersion and preparation method thereof

A cracking catalyst and hydrocracking technology, applied in the direction of molecular sieve catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems affecting the dispersion of active metals, and achieve performance improvement, conversion capacity, and high dispersion Effect

Active Publication Date: 2018-07-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the drying and roasting process, the migration and aggregation of active components inevitably occur, which affects the dispersion of active metals.

Method used

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  • Hydrocracking catalyst with high metal dispersion and preparation method thereof
  • Hydrocracking catalyst with high metal dispersion and preparation method thereof
  • Hydrocracking catalyst with high metal dispersion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] According to the weight of the final hydrocracking catalyst, it contains 30% of Y molecular sieve, 15% of amorphous silicon aluminum, 5.0% of nickel oxide, 22.0% of tungsten oxide, and the balance is alumina. Alumina dry rubber powder and 3903 amorphous silica aluminum dry rubber powder.

[0031] The preparation process of the catalyst is as follows: HY molecular sieves are hydrothermally treated at 550°C, the pressure is 0.2MPa, and the time is 90min. Take 98g of molecular sieve after heat treatment in water and place it in 270mL of dilute nitric acid solution for stirring treatment at a temperature of 65°C for 40 minutes; mix the modified Y-type molecular sieve, aluminum hydroxide dry rubber powder and amorphous silica aluminum dry rubber powder, add binder or Acid peptizer, and then add safflower powder, pore expander and other components, roll and extrude into a cylindrical shape with a diameter of 1.5mm. Dry at 120°C for 3h, and bake at 550°C for 3h. Prepare a 6....

Embodiment 2

[0033] The metal salt solution in Example 1 was replaced by Mo-Ni-P solution, other preparation methods were the same as in Example 1, and the catalyst number obtained was HCC-2.

Embodiment 3

[0035] The phenol in Example 1 is replaced by benzoic acid, the solution and immersion temperature are 70°C, the solution concentration is 2.2wt%, the low oxygen treatment section, the oxygen volume content is 2.6%, and the treatment time is 80min. Other preparation methods are the same as in Example 1. The obtained catalyst number is HCC-3.

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Abstract

The invention discloses a hydrocracking catalyst. The preparation process includes the following contents: (1) selecting a hydrocracking catalyst carrier material powder, the carrier material including at least one acidic cracking material, adding an acidic peptizer or binder, kneading, Rolling, extruding, pelletizing, drying and roasting to prepare the hydrocracking catalyst carrier; (2) Immerse the carrier in an aqueous solution containing organic matter, filter off the excess solution, and then subject the wet bar to anaerobic high-temperature treatment and low-temperature Oxygen roasting treatment; (3) Prepare a metal salt solution containing hydrogenation active components. The hydrogenation active components are generally W and Mo of the VIB group combined with Ni and Co of the VIII group. After the treatment in step (2), The carrier is supersaturated impregnated, the excess solution is filtered off, and then dried and calcined to obtain the finished catalyst. The catalyst active component prepared by the method has a high degree of dispersion.

Description

technical field [0001] The invention relates to a hydrocracking catalyst with high metal dispersion and a preparation method thereof. Background technique [0002] As the quality of crude oil becomes heavier and worse year by year, environmental protection regulations become increasingly strict, and the market demand for clean oil products continues to grow, making hydrogenation technology for the production of clean fuels more and more widely used. In the secondary processing technology of crude oil, distillate oil hydrocracking technology has the characteristics of strong adaptability of raw materials, high flexibility of production operation and product plan, and good product quality. It can directly convert various heavy and low-quality raw materials into High-quality jet fuel, diesel, lubricating oil base materials, chemical naphtha and tail oil steam cracking ethylene raw materials, etc., play the role of product distribution and product quality regulators in the produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/16C10G47/20
Inventor 杜艳泽方向晨
Owner CHINA PETROLEUM & CHEM CORP