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A kind of novel methanation catalyst and preparation method thereof

A methanation catalyst and catalyst technology, which are applied in the petroleum industry, gas fuel, fuel and other directions, can solve the problem of high cost, and achieve the effects of improving stability, strong resistance to water vapor corrosion, and improving sintering resistance.

Active Publication Date: 2015-12-30
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of methanation catalyst and its preparation method in view of the current problem that high temperature resistant methanation catalysts mainly rely on imports and the cost is relatively high, and my country urgently needs such high temperature resistant methanation catalysts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation

[0038] 1.3 g of hydrazine hydrate was dissolved in 10 mL of water to obtain a reducing solution.

[0039] Dissolve 0.78g of nickel nitrate, 0.013g of iron nitrate, 0.013g of lanthanum nitrate, 0.041g of zirconium nitrate, 0.096g of magnesium nitrate, and 0.94g of aluminum nitrate in 10 mL of distilled water to obtain a raw material solution.

[0040] Dissolve 0.5g of sodium hydroxide in 20mL of water to obtain an alkaline solution.

[0041] reaction

[0042] At room temperature, slowly add the reducing solution into the raw material solution, and stir well to obtain Solution 1. Then, under vigorous stirring, alkaline solution was added to solution one to obtain solution two. Transfer the solution two to a polytetrafluoro-lined autoclave, seal the polytetrafluoro-lined autoclave, and put it into an oven. The temperature in the oven was raised to 150° C., kept at the temperature for 12 hours, then cooled to room temperature, and finally the reactor was t...

Embodiment 2

[0047] Preparation

[0048] 1.3 g of hydrazine hydrate was dissolved in 10 mL of water to obtain a reducing solution.

[0049] 0.85 g of nickel nitrate, 0.014 g of cerium nitrate, 0.041 g of zirconium nitrate, 0.096 g of magnesium nitrate, and 0.94 g of aluminum nitrate were dissolved in 10 mL of distilled water to obtain a raw material solution.

[0050] Dissolve 0.5g of sodium hydroxide in 20mL of water to obtain an alkaline solution.

[0051] reaction

[0052] At room temperature, slowly add the reducing solution into the raw material solution, and stir well to obtain Solution 1. Then, under vigorous stirring, alkaline solution was added to solution one to obtain solution two. Transfer the solution two to a polytetrafluoro-lined autoclave, seal the polytetrafluoro-lined autoclave, and put it into an oven. The temperature in the oven was raised to 150° C., kept at the temperature for 12 hours, then cooled to room temperature, and finally the reactor was taken out of the ...

Embodiment 3

[0057] Preparation

[0058] 1.3 g of hydrazine hydrate was dissolved in 10 mL of water to obtain a reducing solution.

[0059] 0.78 g of nickel nitrate, 0.026 g of lanthanum nitrate, 0.041 g of zirconium nitrate, 0.096 g of magnesium nitrate, and 0.94 g of aluminum nitrate were dissolved in 10 mL of distilled water to obtain a raw material solution.

[0060] Dissolve 0.5g of sodium hydroxide in 20mL of water to obtain an alkaline solution.

[0061] reaction

[0062] At room temperature, slowly add the reducing solution into the raw material solution, and stir well to obtain Solution 1. Then, under vigorous stirring, alkaline solution was added to solution one to obtain solution two. Transfer the solution two to a polytetrafluoro-lined autoclave, seal the polytetrafluoro-lined autoclave, and put it into an oven. The temperature in the oven was raised to 150° C., kept at the temperature for 12 hours, then cooled to room temperature, and finally the reactor was taken out of t...

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Abstract

The present invention discloses a novel methanation catalyst and a preparation method thereof, which can solve the problems that a current high temperature resistant methanation catalyst comes mainly from import, and the price of the methanation catalyst is high, but the high temperature resistant methanation catalyst is urgently required in China. The novel methanation catalyst comprises an active component, a carrier, a first auxiliary, and a second auxiliary. The raw materials and the preparation method of the catalyst are obviously different from those of the prior art, the novel catalyst can be used for producing synthetic natural gas from coal gas at high temperature and high pressure, and be used for methanation preparation of gas rich in CO, CO2 and H2. The catalyst comprises the active component, the carrier, the first auxiliary and the second auxiliary, is suitable for production of synthetic natural gas from coal gas at high temperature and high pressure, is high in high-temperature activity, stability and carbon deposit prevention so as to fully satisfy the production requirements of high temperature resistant methanation catalysts and has important significance in domestication of similar catalysts and reduction of production costs.

Description

technical field [0001] The invention relates to the field of chemical industry, especially the field of coal chemical industry, and specifically relates to a novel methanation catalyst and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy and the increasing demand for energy, my country's natural gas market has entered a period of rapid development. In 2012, my country's natural gas import volume (including liquefied natural gas) was 42.5 billion cubic meters, a year-on-year increase of 31.1% over 2011, and the dependence on foreign natural gas reached 28.9%, an increase of 5 percentage points over 2011; in 2015, my country's domestic natural gas demand Will reach 200 billion Nm 3 , the market gap is about 40 billion Nm 3 ; During the period from 2016 to 2020, the growth rate of natural gas demand will remain at an average annual rate of about 8%, and by 2020, the demand for natural gas is expected to exceed 300 b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/83C10L3/08
Inventor 黄虎龙刘玉成宋鹏飞冯雅晨王秀林何洋张瑜郑珩陈海平张新波
Owner CHINA NAT OFFSHORE OIL CORP
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