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A kind of desulfurizer for gas well of Maokou Formation and preparation method thereof

A technology for desulfurization agent and gas well, which is applied in the direction of gas fuel, recycling technology, plastic recycling, etc., can solve the problem of desulfurization efficiency reduction of desulfurizer, and achieve the effect of simple and easy to control preparation method, suitable for popularization and application, and good desulfurization effect

Active Publication Date: 2022-05-31
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the desulfurizer is mainly used to remove sulfur compounds in the natural gas of the Maokou Formation, and the water content in the natural gas will change with the development of the mining process. When the water content of the natural gas changes, the desulfurization efficiency of the desulfurizer Therefore, it is of great significance to provide a desulfurizer with strong adaptability to natural gas in the Maokou Formation

Method used

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  • A kind of desulfurizer for gas well of Maokou Formation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A desulfurizer for a well in the Maokou Formation is weighed according to the following weights:

[0028] Polymer porous microspheres 22kg, nonionic surfactant 5kg, zinc oxide 60kg, graphene oxide 5kg, pre-gelatinized starch 6kg, hydrophobic agent 2kg.

[0029] The preparation method of the above-mentioned desulfurization agent for the gas well of the Maokou Formation is as follows:

[0030] (1) Put the pre-gelatinized starch into the mixing tank, add water under the stirring conditions of 1300r / min, the weight ratio of the pre-gelatinized starch to the water is 2:20, mix well, and obtain the mixing liquid I.;

[0031] (2) Put zinc oxide into the mixture I. Increase the stirring speed to 2000r / min, stir for 25min, and then put graphene oxide, nonionic surfactants and hydrophobic agents into the mixing tank, continue to stir for 35min, and obtain the mixture II.;

[0032] (3) Put polymer porous microspheres into the mixed liquid II. and stir it for 70min under the condition of...

Embodiment 2

[0035] A desulfurizer for a well in the Maokou Formation is weighed according to the following weights:

[0036] Polymer porous microspheres 20kg, nonionic surfactant 3kg, zinc oxide 65kg, graphene oxide 4kg, pre-gelatinized starch 5kg, hydrophobic agent 3kg.

[0037] The preparation method of the above-mentioned desulfurization agent for the gas well of the Maokou Formation is as follows:

[0038] (1) Put the pre-gelatinized starch into the mixing tank, add water under the stirring conditions of 1500r / min, the weight ratio of the pre-gelatinized starch to the water is 1:20, mix well, and obtain the mixing liquid I.;

[0039] (2) Put zinc oxide into the mixture I., increase the stirring speed to 2000r / min, stir for 30min, and then put graphene oxide, nonionic surfactant and hydrophobic agent into the mixing tank, continue to stir for 30min, and obtain the mixture II.;

[0040] (3) Add polymer porous microspheres to the mixture II., stir for 80min under the condition of 500r / min, a...

Embodiment 3

[0043] A desulfurizer for a well in the Maokou Formation is weighed according to the following weights:

[0044] Polymer porous microspheres 24kg, nonionic surfactant 7kg, zinc oxide 55kg, graphene oxide 6kg, pre-gelatinized starch 7kg, hydrophobic agent 1kg.

[0045] The preparation method of the above-mentioned desulfurization agent for the gas well of the Maokou Formation is as follows:

[0046] (1) Put the pre-gelatinized starch into the mixing tank, add water under the stirring conditions of 1000r / min, the weight ratio of the pre-gelatinized starch to the water is 3:20, mix well, and obtain the mixing liquid I.;

[0047] (2) Put zinc oxide into the mixture I., increase the stirring speed to 2000r / min, stir for 20min, and then put graphene oxide, nonionic surfactants and hydrophobic agents into the mixing tank, continue to stir for 40min, and obtain the mixed liquid II.;

[0048] (3) Put polymer porous microspheres into the mixture II., stir for 60min under the condition of 300r...

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Abstract

The invention provides a desulfurizing agent for gas wells of the Maokou Formation and a preparation method thereof. The desulfurizing agent includes polymer porous microspheres, nonionic surfactants, zinc oxide, graphene oxide, pregelatinized starch, and a hydrophobic agent. The preparation method is as follows: put the pregelatinized starch into the mixing tank, add water according to the weight ratio of 1‑3:20 under the stirring condition to obtain the mixed solution I; put zinc oxide into the mixed solution I, mix well, and pour Put graphene oxide, non-ionic surfactant and hydrophobic agent into the tank, mix well to get mixed liquid II; continue to put in polymer porous microspheres, stir to get mixed liquid III, filter, collect precipitates, dry to get desulfurizer . The desulfurizing agent includes macromolecule porous microspheres, non-ionic surfactant, zinc oxide, graphene oxide and hydrophobic agent; its preparation method is simple and easy to operate. When the desulfurizer is used, it has good hydrophobicity, which can effectively avoid the influence of water on the adsorption and improve the desulfurization effect.

Description

Technical field [0001] The present invention relates to the field of gas desulfurization technology, specifically to a desulfurization agent for gas wells in the Maokou Formation and a preparation method thereof. Background [0002] In the natural gas of the Maokou Formation, the content of hydrocarbon components is mainly composed of compounds, and the non-hydrocarbon compounds are mainly CO 2 、N 2 、H 2 Gases such as S, among these non-hydrocarbon compounds, H 2 The presence of S adversely affects the mining process and subsequent transport processes, mainly because of H 2 S forms a weak acid substance with water, which corrodes the mining equipment and transportation equipment, and therefore, is of great significance for natural gas desulfurization. [0003] The method of desulfurization of natural gas includes wet desulfurization and dry desulfurization, wherein, although the desulfurization solvent is renewable, it is generally necessary to further dehydrate the natural gas a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L3/10
CPCC10L3/103Y02W30/62
Inventor 张宁波房大志李佳欣周成香杨修直季宝林卓亦然程泽虎徐海涛王祁邱建玲徐壮举刘波徐涛
Owner CHINA PETROLEUM & CHEM CORP