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Guard catalyst with hydrogenation activity as well as preparation and application thereof

A technology of hydrogenation activity protection and hydrogenation activity, which is applied in the field of hydrogenation activity protection catalyst and its preparation and application, and can solve the problems of downstream catalyst deactivation

Inactive Publication Date: 2013-10-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Residual oil contains a large amount of metal impurities such as Ni, V, Fe, Ca and solid impurities. If these impurities cannot be effectively removed, it will have an adverse effect on the downstream hydrogenation catalyst and easily deactivate the downstream catalyst.

Method used

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  • Guard catalyst with hydrogenation activity as well as preparation and application thereof
  • Guard catalyst with hydrogenation activity as well as preparation and application thereof
  • Guard catalyst with hydrogenation activity as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Weigh 1000 grams of P1-1, then add 1440 milliliters of aqueous solution containing 10 milliliters of nitric acid (product of Tianjin Chemical Reagent No. 3 Factory), and extrude it into a butterfly bar with an outer diameter of φ1.4 mm on a twin-screw extruder. Dry the wet strips at 120°C for 4 hours to obtain dry strips, shape the dried strips, sieve, grind and sieve the dry strips with a length of less than 2mm (generally called industrial dry strip waste), 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

[0056] 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

[0058] 200 grams each of P2A obtained in Example 1 and P2B obtained in Example 2 were evenly mixed to obtain the modified product P2C of P1-1. See Table 1 for the k value of P2C.

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Abstract

The invention relates to a guard catalyst with hydrogenation activity as well as preparation and application thereof. The guard catalyst with hydrogenation activity comprises a carrier and a hydrogenation activity metal component, wherein the carrier is a doublet hole alumina supporter which is represented by a mercury intrusion method, the pore volume of the carrier is 0.9-1.2ml / g, the specific surface area is 50-300<m2> / g, the pore volume of the hole with the diameter of 10-30nm is 55-80% of total pore volume, and the pore volume of the hole with the diameter of 300-500nm is 10-35% of total pore volume. The preparation method of the carrier comprises the following steps of: mixing, forming, drying and roasting hydrated alumina P1 containing pseudo-boehmite and a modified substance P2 of P1, wherein k value of P2 is greater than 0 and less than or equal to 0.9, k is equal to DI2 / DI1, and DI1 is acid peptizing index of the hydrated alumina P1 containing pseudo-boehmite, and DI2 is acid peptizing index of the modified substance P2 of P1. Compared with the prior art, the guard catalyst with hydrogenation activity provided by the invention further has better hydrogenation metal removing activity.

Description

technical field [0001] The invention relates to a hydrogenation active protection catalyst and its preparation and application. Background technique [0002] As crude oil becomes heavier and inferior, the difficulty of crude oil processing increases, and the yield of light oil products decreases. However, the market demand for high-quality light oil products continues to increase, and environmental protection regulations are becoming more and more inclusive. strict. At present, the processing and full utilization of heavy oil, especially residual oil, is becoming a major topic of concern in the global oil refining industry, and residual oil hydrogenation technology is a widely used processing technology in heavy oil processing technology, and is recognized as an economical and environmentally friendly deep processing technology . Residual oil contains a large amount of metal impurities such as Ni, V, Fe, Ca and solid impurities. If these impurities cannot be effectively re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/883B01J23/888B01J23/881C10G45/08
Inventor 杨清河孙淑玲胡大为刘佳王奎戴立顺刘涛聂红李大东
Owner CHINA PETROLEUM & CHEM CORP