Sulfur-resistant methanation catalyst and preparation method thereof

A technology for sulfur-resistant methanation and catalyst, which is applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., to achieve small footprint, good CH4 selectivity, and wide application market effect

Active Publication Date: 2012-03-28
SOUTHWEST RES & DESIGN INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to realize direct methanation of coke oven gas without deep purification, the development and application of such c

Method used

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  • Sulfur-resistant methanation catalyst and preparation method thereof
  • Sulfur-resistant methanation catalyst and preparation method thereof
  • Sulfur-resistant methanation catalyst and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0030] Example 1

[0031] The sulfur-tolerant methanation catalyst of this embodiment is based on the oxides of Mo, Co and Ni as active components, and Al 2 o 3 as the carrier, with La 2 o 3 It is a precipitated catalyst with stearate as a lubricant. Wherein, the proportioning by weight of each component is as follows:

[0032] composition Mo 2 o 3 CoO NiO La 2 o 3 al 2 o 3 Stearate Proportion 2 2 10 2 90 5

[0033] The preparation process of the sulfur-resistant methanation catalyst of this embodiment is as follows figure 1As shown, the preparation method of the sulfur-resistant methanation catalyst in this embodiment mainly includes the following steps:

[0034] (1) Add deionized water to the nitrate solids of active components and accelerators in proportion to prepare a nitrate solution with a total mass content of each component of 15g / L. To the carrier Al 2 o 3 The aluminum nitrate solid in is added deionized water...

Example Embodiment

[0040] Example 2

[0041] The sulfur-tolerant methanation catalyst of this embodiment is based on the oxides of Mo, Co and Ni as active components, and Al 2 o 3 as the carrier, with La 2 o 3 As a promoter, a precipitated catalyst with graphite as a lubricant. Wherein, the proportioning by weight of each component is as follows:

[0042] composition Mo 2 o 3 CoO3 NiO La 2 o 3 Al 2 o 3 graphite Proportion 5 5 20 1 85 2

[0043] The preparation process of the sulfur-resistant methanation catalyst of this embodiment is as follows figure 1 As shown, the preparation method of the sulfur-resistant methanation catalyst in this embodiment mainly includes the following steps:

[0044] (1) Add deionized water to the nitrate solids of active components and accelerators in proportion to prepare a nitrate solution with a total mass content of each component of 25g / L. To the carrier Al 2 o 3 The aluminum nitrate solid in is added deio...

Example Embodiment

[0050] Example 3

[0051] The sulfur-tolerant methanation catalyst of this embodiment is based on the oxides of Mo, Co and Ni as active components, and Al 2 o 3 as the carrier, with La 2 o 3 It is a precipitated catalyst with paraffin wax as a lubricant. Wherein, the proportioning by weight of each component is as follows:

[0052] composition Mo 2 o 3 CoO3 NiO La 2 o 3 al 2 o 3 paraffin Proportion 4 4 15 3 95 3

[0053] The preparation process of the sulfur-resistant methanation catalyst of this embodiment is as follows figure 1 As shown, the preparation method of the sulfur-resistant methanation catalyst in this embodiment mainly includes the following steps:

[0054] (1) Add deionized water to the nitrate solids of active components and accelerators in proportion to prepare a nitrate solution with a total mass content of each component of 20g / L. To the carrier Al 2 o 3 The aluminum nitrate solid in is added deionized...

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Abstract

The invention discloses a sulfur-resistant methanation catalyst, which is used for preparing methane from coke oven gas. The catalyst is a precipitation type catalyst which mainly adopts oxides of Mo, Co and Ni as active ingredients, Al2O3 as a carrier and La2O3 as an accelerant. The catalyst can be used for realizing good methanation of coke oven gas containing 1-3 ppm of H2S at1.0-3.0 MPa and 280-450 DEG C on the premise of not deeply purifying coke oven gas, and also has good selectivity. The invention also discloses a preparation method of the sulfur-resistant methanation catalyst.

Description

technical field [0001] The invention belongs to the technical field of catalysts, in particular to a sulfur-resistant methanation catalyst and a preparation method thereof. Background technique [0002] Since the 1970s, due to the fact that the reserves of oil and natural gas are not suitable for the sharply increasing needs worldwide, people have realized that the development of new gasification processes (such as hydrogenation gasification , catalytic gasification, etc.) to produce substitute natural gas (SNG), but also to accelerate the development of methanation process, in order to use the industrialized gasification method to produce medium-calorific value coal gas, and then produce SNG through methanation. [0003] In 2010, my country's coke production reached 388 million tons, accounting for more than 60% of the world's coke production, and at the same time more than 77.6 billion cubic meters of coke oven gas was produced by-product. In recent years, through the imp...

Claims

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Application Information

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IPC IPC(8): B01J23/889C10L3/08
Inventor 李玉富李泽军赵丹李启强颜智姜瑛蒙高碧
Owner SOUTHWEST RES & DESIGN INST OF CHEM IND
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