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Cleaning agent for high-sulfur natural gas purification device

A technology for purifying device and natural gas, applied in the field of cleaning agents, can solve the problems of inability to remove ferrous sulfide and hydrogen sulfide at the same time, sulfur-dissolving agents are toxic to human body and the environment, and the step-by-step cleaning cycle is long.

Pending Publication Date: 2022-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to solve the problems that the existing cleaning agent cannot remove ferrous sulfide, sulfur deposition, hydrogen sulfide and other substances at the same time, the step-by-step cleaning cycle is long, and the sulfur-dissolving agent is relatively toxic to the human body and the environment. Sulfur natural gas purification device cleaning agent

Method used

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  • Cleaning agent for high-sulfur natural gas purification device
  • Cleaning agent for high-sulfur natural gas purification device
  • Cleaning agent for high-sulfur natural gas purification device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The high-sulfur natural gas purification device cleaning agent of this embodiment, its constituents and its quality are respectively: 1.0 g of potassium ferrate as the main oxidation agent, 0.1 g of potassium persulfate as the oxidation auxiliary agent, and 0.1 g of potassium persulfate as the chelating auxiliary agent. Sodium 0.05g, penetration aid alkyl diglycoside 0.1g, dispersion aid sodium lauryl sulfate 0.08g, water 98.67g.

[0038] During the preparation of the high-sulfur natural gas purification device cleaning agent of this embodiment, the main oxidation agent, oxidation auxiliary agent, chelating auxiliary agent tetrasodium iminodisuccinate, penetration auxiliary agent alkyl diglycoside, and dispersion auxiliary agent twelve Sodium alcohol sulfate is dispersed in water in turn, just stir evenly.

Embodiment 2

[0040] The high-sulfur natural gas purification device cleaning agent of the present embodiment, its composition and its quality are respectively: 0.8 g of sodium ferrate as the main oxidation agent, 0.3 g of sodium persulfate as the oxidation auxiliary agent, and 0.06 g of polyaspartic acid as the chelating auxiliary agent. g, 0.2 g of penetrating aid alcohol ether triglycoside, 0.1 g of dispersing aid alcohol ether carboxylate, and 98.54 g of water.

Embodiment 3-5

[0042] The formulations of cleaning agents for high-sulfur natural gas purification equipment in Examples 3-5 are listed in Table 1.

[0043] Table 1 Example 1-5 High-sulfur natural gas purification device cleaning agent formula

[0044]

[0045]

[0046] 2. Comparison ratio

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Abstract

The invention belongs to the field of cleaning agents, and particularly relates to a cleaning agent for a high-sulfur natural gas purification device. The cleaning agent at least comprises an oxidation main agent, an oxidation auxiliary agent, a chelating auxiliary agent and water, the oxidation main agent is selected from ferrate; the oxidation auxiliary agent is selected from one or two of chlorate and persulfate; the mass ratio of the oxidation main agent to the oxidation auxiliary agent is (0.1-1.5): (0.01-0.2). The cleaning agent for the high-sulfur-content natural gas purification device is obtained through optimization of a large number of experiments, has multiple functions and has the function of removing ferrous sulfide, sulfur deposition, hydrogen sulfide and other substances at the same time. A protective passivation film can be formed on the cleaned metal surface, corrosion damage of materials to the metal inner wall of the device can be relieved during reproduction, and the service life of the device is effectively prolonged.

Description

technical field [0001] The invention belongs to the field of cleaning agents, and in particular relates to a cleaning agent for a high-sulfur natural gas purification device. Background technique [0002] The high-sulfur natural gas produced from the bottom of the well usually contains hydrocarbons such as methane and ethane, as well as hydrogen sulfide (H 2 S volume percentage greater than 2%), mercaptans, sulfides, carbon dioxide, water vapor and other components must undergo purification treatments such as desulfurization and dehydration before entering the gathering and transportation system. The high-sulfur natural gas purification device is composed of different units such as desulfurization, dehydration, sulfur recovery, tail gas treatment, and acid water stripping. In order to ensure the safe and stable operation of the purification device and timely eliminate hidden dangers during operation, it is necessary to carry out regular comprehensive maintenance. [0003] D...

Claims

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Application Information

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IPC IPC(8): C23G1/24C23F11/08
CPCC23G1/24C23F11/08
Inventor 杜永慧刘长松曾浩陈传东赵斌谭肖孟莲香杨杰
Owner CHINA PETROLEUM & CHEM CORP
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