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Natural gas desulfurization and decarbonization agent

A decarburizer, natural gas technology, applied in gas fuel, petroleum industry, fuel and other directions, can solve the problem of low absorption efficiency of desulfurization and decarburizer

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem solved by the present invention is mainly the problem that the absorption efficiency of the desulfurization and decarbonization agent is not high in the currently used alcohol amine wet desulfurization process, and a new natural gas desulfurization and decarbonization agent is provided

Method used

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  • Natural gas desulfurization and decarbonization agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 1. Desulfurization and decarburization agent

[0065] Mix 50 parts of N-methyldiethanolamine and 10 parts of methylenebismorpholine evenly to obtain a desulfurization and decarburization agent.

[0066] 2. Measurement of desulfurization and decarburization rate of desulfurization and decarburization agent

[0067] Assay method is the same as Comparative Example 1, and the test results are listed in Table 3.

[0068] table 3

[0069] Test No. Natural gas desulfurization and decarbonization rate E (%) Comparative example 2 48.73 Comparative example 4 47.65 Example 1 67.76

[0070] The inventors found that N-methyldiethanolamine and methylenebismorpholine have a synergistic effect on the desulfurization and decarburization rate of natural gas. This can also be seen from the desulfurization and decarburization rate data of Example 1 and Comparative Example 2 and Comparative Example 4.

Embodiment 2

[0087] 1. Desulfurization and decarburization agent

[0088] Mix 50 parts of N-methyldiethanolamine, 10 parts of methylenebismorpholine and 15 parts of 1,3,5-hydroxyethyl-triazine to obtain a desulfurization and decarburization agent.

[0089] 2. Measurement of desulfurization and decarburization rate of desulfurization and decarburization agent

[0090] Assay method is the same as Comparative Example 1, and the test results are listed in Table 4.

Embodiment 3

[0092] 1. Desulfurization and decarburization agent

[0093] Mix 50 parts of N-methyldiethanolamine, 10 parts of methylenebismorpholine and 15 parts of 1,3,5-hydroxypropyl-triazine to obtain a desulfurization and decarburization agent.

[0094] 2. Measurement of desulfurization and decarburization rate of desulfurization and decarburization agent

[0095] Assay method is the same as Comparative Example 1, and the test results are listed in Table 4.

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Abstract

The invention relates to a natural gas desulfurization and decarbonization agent, which is mainly used for solving the problem of poor efficiency of removing hydrogen sulfide and carbon dioxide in natural gas in the prior art. The following technical scheme is adopted in the invention to well solve the technical problem: the natural gas desulfurization and decarbonization agent comprises the following components in parts by weight: (a) 40-80 parts of alkanolamine; (b) 8-16 parts of morpholine derivative; the alkanolamine has a general formula shown by formula (I), and R is H or C1-C18 alkyl; and the morpholine derivative has a general formula shown by formula (II), and R1 is C1-C8 alkylene. The natural gas desulfurization and decarbonization agent can be used in natural gas desulfurization and decarbonization treatment.

Description

technical field [0001] The invention relates to a natural gas desulfurization and decarbonization agent. Background technique [0002] As a clean fuel, the development and utilization of natural gas has attracted widespread attention all over the world. Currently, the total amount of natural gas we can recover is (1.5~2.3)×10 12 m 3 , the production of natural gas is close to 7×10 10 m 3 , ranking No. 9 in the world, but more than one-third of them contain acid gases such as hydrogen sulfide, sulfur dioxide, and carbon dioxide. These acid gases not only corrode the equipment abnormally during mining, processing and transportation, but also have a serious impact on the environment. [0003] At present, the wet desulfurization process is mainly used in China, using alcohol amine as a solvent to absorb hydrogen sulfide and carbon dioxide. The alcohol amine solvent can be regenerated by reducing pressure and increasing temperature. Renewable, but this process has a large...

Claims

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Application Information

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IPC IPC(8): C10L3/10
Inventor 邓舜王辉辉张慧高磊
Owner CHINA PETROLEUM & CHEM CORP