Low-temperature sulfur-tolerant shift catalyst and preparation method thereof

A technology of sulfur-resistant conversion and catalyst, which is applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. Large volume and other problems, to achieve strong structural stability and anti-hydration performance, good structural stability, and low loss rate

Active Publication Date: 2016-11-16
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the patented method consumes a lot of water, it is difficult to treat acid-containing water, and the preparation process is complicated.

Method used

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  • Low-temperature sulfur-tolerant shift catalyst and preparation method thereof
  • Low-temperature sulfur-tolerant shift catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The attapulgite clay was first calcined at 500°C for 3 hours, and then crushed through a 180-mesh sieve.

[0062] Dissolve 8.61g of ammonium molybdate with 40.0ml of deionized water to obtain solution A containing molybdenum; dissolve 8.82g of cobalt nitrate, 23.34g of nickel nitrate, and 8.82g of potassium carbonate with 45.0ml of deionized water to obtain a solution containing cobalt and nickel B; Dissolve 3.0 g of citric acid in 10 ml of deionized water to obtain solution C.

[0063] Weigh 56.0g of attapulgite clay, 10.0g of magnesia, 15.0g of metatitanic acid, 11.2g of kalephine, and 3.0g of celadon powder, mix them evenly, add solution A, knead evenly, then add solution C, knead evenly, and then form Bar shape, air-dried, baked at 550°C for 3h, and cooled down to room temperature naturally.

[0064] The calcined catalyst was put into the solution B, impregnated with an equal volume, dried, calcined at 420°C for 2 hours, and then cooled down to room temperature nat...

Embodiment 2

[0066] The attapulgite clay was first calcined at 500°C for 4 hours, and then crushed through a 180-mesh sieve.

[0067] Dissolve 9.84g of ammonium molybdate in 30.0ml of deionized water to obtain solution A containing molybdenum; dissolve 1.94g of cobalt nitrate, 31.12g of nickel nitrate and 5.88g of potassium carbonate in 35.0ml of deionized water to obtain solution B containing nickel ; Then 5.0g of citric acid and 2.0g of oxalic acid were dissolved in 10ml of deionized water to obtain solution C.

[0068] Weigh 62.5g of attapulgite clay, 5.0g of magnesia, 12.5g of metatitanic acid, 11.2g of kaleidite, 4.0g of celadon powder and mix evenly, add solution A, knead evenly, then add solution C, knead evenly, and then form Bar shape, air-dried, baked at 600°C for 3h, and cooled down to room temperature naturally.

[0069] Put the calcined catalyst into the solution B, impregnate it in equal volume, dry it, and calcinate it at 450°C for 2 hours, then cool it down to room tempera...

Embodiment 3

[0071] The attapulgite clay was first calcined at 600°C for 2 hours, and then crushed through a 200-mesh sieve.

[0072] Dissolve 5.54g of ammonium molybdate with 30.0ml of deionized water to obtain solution A containing molybdenum; dissolve 7.76g of cobalt nitrate, 27.23g of nickel nitrate, and 1.47g of potassium carbonate with 55.0ml of deionized water to obtain a solution containing cobalt and nickel B; Dissolve 4.0 g of citric acid and 2.0 g of sucrose in 10 ml of deionized water to obtain solution C.

[0073] Weigh 77.5g of attapulgite clay, 1g of magnesia, 6.25g of metatitanic acid, 11.5g of kalephine, and 4.0g of glucose and mix evenly, add solution A, knead evenly, then add solution C, knead evenly, and then form a clover shape, Dry naturally, bake at 500°C for 3h, and cool down to room temperature naturally.

[0074] The calcined catalyst was put into the solution B, impregnated with an equal volume, dried, calcined at 500°C for 3 hours, and then cooled down to room ...

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Abstract

The invention belongs to the technical field of coal chemical industry sulfur-tolerant shift, and particularly relates to a low temperature sulfur-tolerant shift catalyst and a preparation method thereof. The low temperature sulfur-tolerant shift catalyst comprises a carrier and an active component, and is characterized in that attapulgite clay is adopted as the carrier, the carrier is added with a magnesium-containing powdery solid compound and a titanium-containing powdery solid compound, the active component is a metal oxide of Co, Ni and Mo, and an active auxiliary agent is added. The low temperature sulfur-tolerant shift catalyst has characteristics of good structure stability, strong hydration resistance, good low temperature activity, good activity stability, low active component loss rate and long service life, and can meet requirements of the industrial sulfur-tolerant shift work section low temperature condition on the catalyst. In addition, the raw material adopts the attapulgite clay with characteristics of wide source and low cost so as to substantially reduce the catalyst preparation cost, provide an effective approach for comprehensive utilization of the attapulgite clay, and provide good economic benefits and good environmental protection benefits.

Description

technical field [0001] The invention belongs to the technical field of sulfur-resistant shifting in coal chemical industry, and in particular relates to a low-temperature sulfur-resistant shifting catalyst and a preparation method. Background technique [0002] The cobalt-molybdenum-based sulfur-resistant wide-temperature shift catalyst is mainly used to meet the needs of producing raw material gas from heavy raw materials such as heavy oil, residual oil, and coal. °C shows excellent activity, which is equivalent to that of copper-based low-temperature shift catalysts, and its heat resistance is comparable to that of iron-chromium-based high-temperature shift catalysts. Therefore, it has a very wide active temperature range, covering almost the entire active temperature range of the iron-based high-temperature shift catalyst and the copper-based low-temperature shift catalyst. Its most prominent advantage is its strong resistance to sulfur and poison, and it also has the ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/887C01B3/16
CPCY02P20/52
Inventor 余汉涛白志敏齐焕东赵庆鲁田兆明王昊姜建波薛红霞
Owner CHINA PETROLEUM & CHEM CORP
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