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A hydrogenation catalyst and a preparation method thereof

A hydrogenation catalyst and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of catalyst pore size and small pore volume, and achieve reaction The effect of short time, high continuous process efficiency and simple process

Active Publication Date: 2019-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pore diameter and pore volume of the catalyst prepared by this method are small, which is not suitable for the preparation of heavy residue hydrodesulfurization and denitrogenation catalysts

Method used

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  • A hydrogenation catalyst and a preparation method thereof

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Effect test

Embodiment 1

[0045] This example introduces the preparation method of Mo and Ni original solutions. In this embodiment, each Mo and Ni acidic active metal solution A1 and basic active metal solution B1 were prepared with one concentration and ratio, and solutions with other ratios and concentrations can be prepared according to this method.

[0046] Configuration of acidic active metal solution A1: Take 386g of molybdenum oxide and 123g of basic nickel carbonate into a multi-necked flask, add a certain amount of deionized water, stir until the substance in the bottle is slurry, then slowly add 86g of phosphoric acid, After the initial reaction, heat slowly, keep the solution temperature at 90-110°C for 1-3 hours, stop heating, filter the obtained solution while it is hot, and then add phosphoric acid to adjust the pH value of the solution to 1.0-4.0 to obtain Clear acidic reactive metal solution A1. The solution composition is MoO 3 NiO: 69.27g / 100mL; NiO: 12.49g / 100mL.

[0047] Configu...

Embodiment 2

[0049] NaAlO with a concentration of 50g / 100mL 2 Alkaline material of solution and alkaline active metal solution B1 with Al concentration of 80g / 100mL 2 (SO 4 ) 3 solution and the acidic material of the acidic active metal solution A1 are added to their respective component tanks, each raw material tank and the first impingement flow microreactor are placed in an oil bath and heated to 90°C, and the booster of the two component tanks is turned on. Press the pump, and enter the alkaline material and the acidic material into the first impact flow reactor through the atomizer at the same time, control the flow rate of the alkaline material to 15mL / min, adjust the pH value in the impact flow reactor to 8.5, and neutralize Precipitation reaction, the reaction mixture stays in the first impingement flow microreactor for 1min and then enters the second microreactor; microwave heating is used to raise the reaction temperature of the second microreactor to 110°C, and the second micr...

Embodiment 3

[0051] NaAlO with a concentration of 80g / 100mL 2 solution and alkaline active metal solution B2 (MoO3 : 50.2g / 100mL; NiO: 10.1g / 100mL) alkaline material and Al with a concentration of 100g / 100mL 2 (SO 4 ) 3 solution and 45g / 100mL acidic active metal solution A2 (MoO 3 : 40.7g / 100mL; NiO: 11.5g / 100mL) acidic materials were added to their respective component tanks, each raw material tank and the first impingement flow microreactor were put into an oil bath and heated to 80°C, and the two The booster pump of a component tank simultaneously enters the acidic material and the alkaline material into the first impact flow reactor through the atomizer, controls the flow rate of the alkaline material to be 15mL / min, and adjusts the pH in the impact flow reactor. When the value is 9.0, the neutralization precipitation reaction is carried out, and the reaction mixture stays in the first impingement flow microreactor for 1.5 minutes and then enters the second microreactor; microwave h...

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Abstract

The invention discloses a hydrogenation catalyst and a preparation method thereof. A reaction system adopted for preparation of the hydrogenation catalyst comprises N micro-reactors connected in series, the first micro-reactor is an impinging stream reactor, acidic and alkaline materials enter the first micro-reactor for a neutralization reaction, and products sequentially enter the second micro-reactor to the (N-1)th micro-reactor with the pH value swing, wherein the reaction temperature is 20-30 DEG C lower than that of the first micro-reactor when the pH value swings towards the alkali sidewhile the reaction temperature is 20-30 DEG C higher than that of the first micro-reactor when the pH value swings towards the acid side, and the obtained reaction product enters the Nth micro-reactor to be subjected to an aging reaction and is roasted to obtain the hydrogenation catalyst. The acidic material is an acidic aluminum salt solution and an acidic active metal solution, and the alkaline material is an alkaline aluminate solution and an alkaline active metal solution. The hydrogenation catalyst prepared by the method is relatively large in pore diameter and pore volume, uniform in grain size and high in catalyst surface phase active metal density, eliminates an amplification effect, and is suitable for being applied to hydrodesulfurization and denitrification processes of residual oil.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and a preparation method thereof, in particular to a hydrogenation desulfurization and denitrogenation catalyst for residual oil and a preparation method thereof. Background technique [0002] In recent years, microreactors have attracted great academic and commercial interest from researchers in many fields. This interest arises from the following characteristics of microtechnology, including reduced size, increased productivity, scaling up of systems to any desired production capacity (ie "scaling up"), increased heat transfer and increased mass transfer. Some work involving microreactors is reviewed by Gavilidis et al. in "Technology And Applications Of Microengineered Reactors" Trans. IchemE, Vol. 80, Part A, pp. 3-30 (January 2002). Microreactor is a chemical reaction system with a unit reaction interface width of micron level. It is a microchemical technology that emerged in the 1990s. Since deM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/883B01J35/10C10G45/08
Inventor 吕振辉隋宝宽薛冬彭冲彭绍忠
Owner CHINA PETROLEUM & CHEM CORP
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