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ZrO2-loaded high-stability sulfur-tolerant methanation catalyst

A sulfur methanation-resistant, high-stability technology, applied in physical/chemical process catalysts, catalyst supports, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as failure to reach

Active Publication Date: 2013-12-11
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing methanation catalysts cannot meet the above requirements

Method used

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  • ZrO2-loaded high-stability sulfur-tolerant methanation catalyst
  • ZrO2-loaded high-stability sulfur-tolerant methanation catalyst
  • ZrO2-loaded high-stability sulfur-tolerant methanation catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0073] The following examples have no special instructions, and the ratios or parts of materials are weight ratios or parts. Example 1: Preparation of 20MoO by impregnation method 3 -10Y 2 o 3 / 70ZrO 2 (monoclinic) catalyst

[0074] (1) 8.48 grams of Y (NO 3 ) 3 .6H 2 O was dissolved in 60 g of deionized water and stirred to form an impregnation solution. Weigh 70 g of commercially available monoclinic ZrO 2 Carrier (with a specific surface area of ​​90m 2 / g), add it to the impregnation solution, stir vigorously for 2 hours to form a uniform suspension, evaporate the water to dryness with a rotary evaporator, and then put it in a 110°C drying oven to dry for 12 hours. Finally, Baked in a muffle furnace at 600 °C for 4 hours to obtain surface-loaded Y 2 o 3 Monoclinic ZrO 2 porous carrier.

[0075] (2) 24.5 grams of ammonium molybdate ((NH 4 ) 6 Mo 7 o 24 4H2 O) be dissolved in 60 grams of deionized water, and be made into dipping solution through stirring. T...

Embodiment 2

[0079] Example 2: Preparation of 5MoO by impregnation method 3 -3Y 2 o 3 / 92ZrO 2 (monoclinic) catalyst

[0080] (1) 2.54 grams of Y (NO 3 ) 3 .6H 2 O was dissolved in 70 g of deionized water and stirred to form an impregnation solution. Weigh 92 g of commercially available monoclinic ZrO 2 Carrier (with a specific surface area of ​​90m 2 / g), add it to the impregnation solution, stir vigorously for 2 hours to form a uniform suspension, evaporate the water to dryness with a rotary evaporator, and then put it in a 110°C drying oven to dry for 12 hours. Finally, Baked in a muffle furnace at 600 °C for 4 hours to obtain surface-loaded Y 2 o 3 Monoclinic ZrO 2 porous carrier.

[0081] (2) 6.1 grams of ammonium molybdate ((NH 4 ) 6 Mo 7 o 24 4H 2 O) be dissolved in 70 grams of deionized water, and be made into dipping solution through stirring. The surface load Y obtained in the above step (1) will be 2 o 3 Monoclinic ZrO 2 Add the porous carrier into the impre...

Embodiment 3

[0082] Example 3: Preparation of 10MoO by impregnation method 3 -10Y 2 o 3 / 80ZrO 2 (monoclinic) catalyst

[0083] (1) 8.48 grams of Y (NO 3 ) 3 .6H 2 O was dissolved in 60 g of deionized water and stirred to form an impregnation solution. Weigh 80 g of commercially available monoclinic ZrO 2 Carrier (with a specific surface area of ​​90m 2 / g), add it to the impregnation solution, stir vigorously for 2 hours to form a uniform suspension, evaporate the water to dryness with a rotary evaporator, and then put it in a 110°C drying oven to dry for 12 hours. Finally, Baked in a muffle furnace at 600 °C for 4 hours to obtain surface-loaded Y 2 o 3 Monoclinic ZrO 2 porous carrier.

[0084] (2) 12.26 grams of ammonium molybdate ((NH 4 ) 6 Mo 7 o 24 4H 2 O) be dissolved in 60 grams of deionized water, and be made into dipping solution through stirring. The surface load Y obtained in the above step (1) will be 2 o 3 Monoclinic ZrO 2 Add the porous carrier into the i...

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Abstract

The invention discloses a ZrO2-loaded high-stability sulfur-tolerant methanation catalyst consisting of 5-25 parts of MoO3, 3-35 parts of Y2O3, 40-92 parts of ZrO2 (by weight). The catalyst, which has characteristics of high methanation catalysis activity, low reverse water gas shift reaction activity and high catalysis activity stability in a high hydrogen sulfide atmosphere, is especially suitable for the last 1-2 stages or last 1-2 sections of multi-stage or multi-section methanation reaction.

Description

technical field [0001] The present invention relates to a kind of ZrO for methanation reaction 2 Supported high-stability sulfur-resistant catalyst, specifically, relates to a synthesis gas containing hydrogen sulfide and other acid gases effective components CO and H 2 converted to CH 4 ZrO 2 The high stability sulfur-resistant catalyst of load, wherein said catalyst is made of catalyst promoter Y 2 o 3 , Catalyst active component MoO 3 and porous ZrO 2 Vector composition. At the same time, the invention also relates to a preparation method of the catalyst. Background technique [0002] The methanation reaction refers to the reaction of CO in the synthesis gas with H under the action of certain temperature, pressure and catalyst. 2 The process of reacting to form methane. Its reaction formula can be expressed as follows: [0003] CO+3H 2 =CH 4 +H 2 O(1) [0004] CO+H 2 O=CO 2 +H 2 (2) [0005] 2CO+2H 2 =CH 4 +CO 2 (3) [0006] It is generally believed ...

Claims

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Application Information

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IPC IPC(8): B01J23/28C07C9/04C07C1/04B01J32/00B01J35/10
CPCY02P20/00
Inventor 田大勇秦绍东汪国高孙守理孙琦
Owner CHNA ENERGY INVESTMENT CORP LTD
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