Heavy-oil hydrotreatment catalyst, and preparation and application thereof

A heavy oil hydrogenation and catalyst technology, applied in the direction of physical/chemical process catalysts, catalyst carriers, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem that the removal rate of heavy metals and asphaltenes cannot be achieved Good matching, low removal rate and carbon residue removal rate, low catalyst desulfurization rate, etc.

Active Publication Date: 2015-03-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of existing heavy oil hydrogenation catalysts is that their S, N removal rates, heavy metal removal rates and asphaltenes removal rates cannot be well matched. For exam...

Method used

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  • Heavy-oil hydrotreatment catalyst, and preparation and application thereof
  • Heavy-oil hydrotreatment catalyst, and preparation and application thereof
  • Heavy-oil hydrotreatment catalyst, and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Weigh 1000 g of P1-1, then add 1440 ml of aqueous solution containing 10 ml of nitric acid (product of Tianjin Chemical Reagent No. Dry the wet strips at 120°C for 4 hours to obtain dry strips, shape the dry strips, sieve, grind and sieve the dry strip materials (generally called industrial dry strip waste) with a length of less than 2mm, and take 100-200 Mesh sieving to obtain the modified product P2A of P1-1. The k values ​​of P2A are shown in Table 1.

Embodiment 2

[0058] Weigh 1000 g of P1-1, and flash dry at 240°C for 6 minutes to obtain P2B, a modified product of P1-1. See Table 1 for the k values ​​of P2B.

Embodiment 3

[0060] Weigh 1000 grams of P1-2, add 1440 ml of aqueous solution containing 10 ml of nitric acid (product of Tianjin Chemical Reagent No. The wet strips were dried at 120°C for 4 hours, and roasted at 600°C for 4 hours to obtain the carrier. The carrier strips were shaped and sieved, and the carrier strip materials (generally called industrial carrier waste) with a length of less than 2mm were ground, sieved, and collected. Among them, 100-200 mesh sieve, namely the modified product P2C of P1-2. See Table 1 for the k value of P2C.

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PUM

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Abstract

The invention discloses a heavy-oil hydrotreatment catalyst, and preparation and application thereof. The catalyst comprises an aluminium oxide carrier and a hydrogenation active metal composition. The carrier has a double-peak pore structure, and characterized by mercury intrusion porosimetry, the carrier has the pore volume larger than 0.4 mL/g and less than 0.8 mL/g and the specific surface area of 100-400 m<2>/g, the pore volume of pores with the diameter of 6-20 nm accounts for 60-90% of the total pore volume, and the pore volume of pores with the diameter of 100-300 nm accounts for 3-20% of the total pore volume. Compared with the prior art, the provided catalyst has relatively good hydrodesulfurization performance when being applied to residuum hydrotreatment.

Description

technical field [0001] The invention relates to a heavy oil hydrotreating catalyst and its preparation and application. Background technique [0002] Residue oil (heavy oil) hydrogenation technology is one of the key technologies for efficient utilization of residue oil. A series of catalysts are the core of residue oil hydrogenation technology. Residue oil hydrogenation series catalysts adopt hierarchical packing technology, and catalysts with different functions are used in combination. Among them The residual oil hydrodesulfurization catalyst is one of the main catalysts in the residual oil hydroprocessing technology, and is usually located at the back of the catalyst bed. In the residual oil fixed bed reactor, the raw material along the flow direction first contacts the protective agent and the metal removal agent, and after passing through the bed, most of the metal Ni and V are removed, and some reactive sulfides are also removed. Therefore, in the desulfurization cat...

Claims

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Application Information

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IPC IPC(8): B01J23/882B01J23/883B01J35/10B01J32/00C10G45/08
Inventor 赵新强孙淑玲刘学芬贾燕子杨清河刘涛
Owner CHINA PETROLEUM & CHEM CORP
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