Preparation method and application of passivated sulfurized hydrocracking catalyst

A hydrocracking and catalyst technology, which is used in catalyst activation/preparation, physical/chemical process catalysts, molecular sieve catalysts, etc. Passivation effect, migration promotion, dispersibility enhancement effect

Pending Publication Date: 2021-10-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, anhydrous liquid ammonia is an irritating and toxic liquid, which is flammable and explosive. It is dangerous to use anhydrous liquid ammonia in industry. If it leaks, it will cause great harm to the environment and people. The concept of safety, health and environmental protection

Method used

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  • Preparation method and application of passivated sulfurized hydrocracking catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Take 50g of oxidized hydrocracking catalyst, prepare an aqueous solution containing 11.3g of diethanolamine and 3.5g of glycerol, stir evenly at 30°C to obtain an impregnating solution containing nitrogen and organic alcohols, and use nitrogen-containing and a solution of an organic alcohol to introduce an oxidized state hydrocracking catalyst to introduce an organic alcohol with a nitrogen content of 3.0% by weight and an atomic ratio to Ni of 0.8, and dry the catalyst for 4 hours at 120°C under normal pressure in flowing air to obtain The catalyst supporting nitrogen and organic alcohol; then the catalyst supporting nitrogen and organic alcohol in the volume fraction H 2 S:H 2 :N 2 =5:70:25 atmosphere, the vulcanization reaction is carried out in the form of temperature programming, from 30°C to 230°C at a rate of 30°C / hour, constant temperature for 4 hours, and then at a rate of 15°C / hour to 300°C constant temperature 6 Hours, a passivated sulfide state hydrocracki...

Embodiment 2

[0043] Take 50g of oxidized hydrocracking catalyst, prepare an aqueous solution containing 5.6g of N-(2-hydroxyethyl)ethylenediamine and 3.5g of glycerol, and stir evenly at 30°C to obtain an impregnation solution containing nitrogen and organic alcohols , according to the pore saturation impregnation method, a solution containing nitrogen and organic alcohol is introduced into the oxidized state hydrocracking catalyst to introduce a nitrogen content of 3.0% by weight and an organic alcohol with an atomic ratio of 0.8 to Ni, and the catalyst is heated at 130 ° C under normal pressure , drying in flowing air for 3 hours to obtain a catalyst for loading nitrogen and organic alcohol; then the catalyst for loading nitrogen and organic alcohol is 2 S:H 2 :N 2 = Under the atmosphere of 3:60:37, the vulcanization reaction is carried out in the form of temperature programming. The temperature is raised from 30°C to 210°C at a rate of 30°C / hour, and the temperature is kept constant fo...

Embodiment 3

[0045] Take 50g of oxidized hydrocracking catalyst, prepare an aqueous solution containing 11.3g of diethanolamine and 2.3g of ethylene glycol, and stir evenly at 40°C to obtain an impregnation solution containing nitrogen and organic alcohols. and a solution of an organic alcohol to introduce an oxidized state hydrocracking catalyst to introduce an organic alcohol with a nitrogen content of 3.0% by weight and an atomic ratio to Ni of 0.8, and dry the catalyst for 4 hours at 120°C under normal pressure in flowing air to obtain The catalyst supporting nitrogen and organic alcohol; then the catalyst supporting nitrogen and organic alcohol in the volume fraction H 2 S:H 2 :N 2 =8:65:27 atmosphere, the vulcanization reaction is carried out in the form of temperature programming, from 30°C at a rate of 15°C / hour to 240°C, constant temperature for 2 hours, and then at a rate of 25°C / hour to 310°C constant temperature 4 Hours, the passivated sulfide state hydrocracking catalyst C3 ...

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Abstract

The invention relates to a preparation method of a passivated sulfurized hydrocracking catalyst and the hydrocracking catalyst obtained by the method. The method comprises the following steps of: dipping an oxidized hydrocracking catalyst by adopting a solution containing a nitrogen-containing compound and organic alcohol, then drying the oxidized hydrocracking catalyst, and carrying out sulfuration treatment on the dried oxidized hydrocracking catalyst to obtain the passivated sulfurated hydrocracking catalyst. According to the method, the passivation process can be completed while the hydrocracking catalyst is sulfurized, the sulfuration and passivation effects of the catalyst are good, the reaction activity of the catalyst is high, the catalyst does not need to be sulfurized or activated when a hydrocracking device is started, oil can be directly fed for starting, the starting steps are simplified, and the starting time of the hydrocracking device is shortened.

Description

technical field [0001] The invention relates to a preparation method of a passivation type sulfide state hydrocracking catalyst, a passivation type sulfide state hydrocracking catalyst obtained by the method and a method for starting a hydrogenation unit. Background technique [0002] With the continuous upgrading of product quality, increasingly stringent environmental protection regulations, and increasingly inferior and heavy crude oil, hydrogenation technology has been widely valued and applied all over the world. Hydrocracking technology is an effective means of converting heavy distillates into light, clean products. The main characteristics of hydrocracking technology are strong adaptability of raw materials, high selectivity of product schemes and target products, good product quality and high added value, and can directly produce a variety of high-quality petroleum products. [0003] Hydrocracking technology uses dual-functional catalysts, including cracking functi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/16B01J27/051B01J37/02B01J37/20C10G47/12C10G47/20
CPCB01J29/166B01J27/0515B01J37/0203B01J37/20C10G47/12C10G47/20C10G2300/1037
Inventor 翟维明刘锋晋超杨平褚阳杨清河
Owner CHINA PETROLEUM & CHEM CORP
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