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A kind of hydrogenation catalyst and its application

A hydrogenation catalyst and catalyst technology, which can be used in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., and can solve the problems of heavy and deteriorated crude oil properties.

Active Publication Date: 2018-07-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to the reduction of oil resources, the nature of crude oil has become heavier and worse, and refineries have to process lower-quality crude oil

Method used

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  • A kind of hydrogenation catalyst and its application
  • A kind of hydrogenation catalyst and its application
  • A kind of hydrogenation catalyst and its application

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1-3

[0044] Preparation Examples 1-3 are used to prepare the carrier.

preparation example 1

[0046] Take 100g of pseudo-boehmite powder produced by Catalyst Changling Branch, add 4.0g of methyl cellulose, 3.0g of scallop powder and 95mL of deionized water, fully stir and mix evenly, after kneading evenly by an extruder, extrude to form A wet form of aluminum hydroxide is obtained. Place the wet aluminum hydroxide molding in an oven at 150°C and dry for 12 hours to obtain a hydrated alumina-containing molding carrier Z1. The radial crushing strength, water absorption rate and δ value (strength loss rate) of the shaped carrier S1 after drying were measured, and the results are listed in Table 1.

Embodiment 2

[0048] Get 100g of pseudo-boehmite SB powder produced by Sasol Company, add 3.0g of hydroxyethyl methylcellulose, 2g of hydroxypropylmethylcellulose, 3.0g of turnip powder and 90mL of deionized water, fully stir and mix, After being uniformly kneaded by an extruder, the extruded bar is formed to obtain a shaped bar. The aluminum hydroxide shaped strips were placed in an oven at 250° C. and dried for 4 hours to obtain the hydrated alumina shaped carrier Z2. The radial crushing strength, water absorption rate and δ value of the molded carrier S2 after drying were measured, and the results are listed in Table 1.

[0049] Table 1

[0050] Example

[0051] *Dry basis: the percentage of the weight of the carrier after calcination to the weight of the carrier before calcination when the hydrated alumina-shaped carrier is calcined in a muffle furnace at 600°C for 4 hours.

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Abstract

A hydrogenation catalyst and its application, the catalyst includes introducing cobalt and molybdenum hydrogenation active metal components on a shaped carrier containing hydrated alumina, and the preparation method of the catalyst includes impregnating the hydrated alumina with an impregnating solution to form The carrier, wherein the impregnating solution contains cobalt-containing compounds, molybdenum-containing compounds, phosphorus-containing compounds and citric acid, the concentration of the cobalt-containing compounds calculated as cobalt in the solution is 0.01 to 0.1 g / mL, and the concentration of the cobalt-containing compounds calculated as molybdenum is The concentration of molybdenum compound is 0.05-0.4g / mL, the concentration of phosphorus-containing compound in terms of phosphorus is 0.005-0.10g / mL, the concentration of citric acid is 0.05-0.5g / mL, and is characterized by ultraviolet-visible diffuse reflectance spectroscopy , the λ≤1 of the impregnating solution, λ is the ratio of the peak height of the peak at 517±10nm to the peak at 772±10nm in the ultraviolet-visible spectrum. Compared with the prior art, the catalyst provided by the invention has better hydrogenation performance.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and its application. Background technique [0002] With the increasingly stringent environmental protection requirements worldwide, countries have increasingly stringent requirements on the quality of vehicle fuel. In addition, due to the reduction of oil resources, the nature of crude oil has become heavier and worse, and refineries have to process lower-quality crude oil. Therefore, greatly reducing the content of impurities and polycyclic aromatic hydrocarbons in diesel oil and significantly improving the quality of diesel oil has become an urgent problem for oil refining companies to solve. Hydrogenation technology is one of the main technologies to reduce the impurity content of oil products and improve the quality of oil products, and its core is hydrogenation catalyst. Cobalt-molybdenum catalyst is a commonly used hydrogenation catalyst because of its good hydrodesulfurization performance and l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/19C10G47/12C10G49/04
Inventor 张乐杨清河李明丰赵新强胡志海高晓冬刘清河
Owner CHINA PETROLEUM & CHEM CORP
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