Amine Liquid Three - Stage Filtration System - Three - Stage Fine Filtration & Amine Liquid Quality Guardian

Product Introduction

1. System Composition

• Primary Filter: Equipped with large - pore filter elements, mainly made of stainless - steel braided mesh. It mainly intercepts large - particle impurities in the amine liquid, such as rust and welding slag. It has low resistance to fluid, ensuring the preliminary purification and smooth flow of the amine liquid.

• Intermediate Filter: Fitted with medium - precision filter elements, such as polypropylene pleated filter elements. It can filter out medium - sized impurities in the amine liquid, such as solid particles and colloids, further improving the cleanliness of the amine liquid.

• High - level Filter: Installed with high - precision filter elements, such as coalescing separation filter elements. It can effectively remove tiny particles, liquid droplets, and some soluble impurities in the amine liquid, achieving deep purification of the amine liquid.

• Pipeline and Valve Components: Composed of pipes, control valves, and connecting pieces resistant to amine liquid corrosion, ensuring stable transmission of the amine liquid within the system and enabling flexible control of the filtration process.

• Control System: Integrated with an intelligent PLC control system, it monitors parameters such as the pressure difference between the inlet and outlet, flow rate, and operation time of each filter in real - time, automatically alarms, and prompts filter element replacement to ensure stable system operation.

2. Working Principle：The amine liquid to be filtered first enters the primary filter. After preliminary filtration to remove large - particle impurities, it flows into the intermediate filter for secondary filtration, further intercepting medium - sized impurities. Then it enters the high - level filter for deep purification, removing tiny particles and liquid droplets. Finally, clean amine liquid is output to meet the process requirements. The entire process is monitored in real - time by the control system to ensure filtration efficiency and system stability.

3. Core Advantages：Compared with single - stage or simple filtration equipment, the amine liquid three - stage filtration system achieves deep purification of the amine liquid through three - stage progressive filtration, effectively improving the quality of the amine liquid. The intelligent control system reduces the risk of manual maintenance costs and operational errors. The modular design facilitates equipment installation, debugging, and subsequent maintenance and upgrades.

Working Process

1. Amine Liquid Input

• Open the main inlet valve of the system, and the amine liquid enters the primary filter under pressure or through a pump.

• The large - pore filter elements in the primary filter conduct preliminary filtration on the amine liquid, intercepting large - particle impurities such as rust and welding slag. The preliminarily purified amine liquid flows into the intermediate filter through the pipeline.

2. Intermediate Filtration

• The amine liquid enters the intermediate filter, and the medium - precision filter elements work to further filter out medium - sized impurities such as solid particles and colloids.

• The amine liquid after intermediate filtration continues to flow to the high - level filter for deep purification.

3. High - level Filtration

• The amine liquid enters the high - level filter, and the high - precision filter elements remove tiny particles, liquid droplets, and some soluble impurities, achieving deep purification of the amine liquid.

• The deeply purified clean amine liquid flows out from the system outlet and enters subsequent process steps for use.

4. Filter Element Maintenance

• The control system monitors the pressure difference between the inlet and outlet of each filter in real - time. When the pressure difference exceeds the set threshold (such as 0.05MPa for the primary filter, 0.1MPa for the intermediate filter, and 0.15MPa for the high - level filter), or reaches the preset operation duration (such as 72 hours), it prompts the need to replace the filter element.

• Close the inlet and outlet valves of the relevant filter, open the drain valve to discharge the residual amine liquid, then disassemble the filter end cover and replace the corresponding filter element.

• Install the new filter element, seal the filter well, close the drain valve, reopen the inlet and outlet valves, and restore the filter to operation.

Product Features

Technical Parameters

Application Fields

1. Petrochemical Industry: Used in natural gas desulfurization and amine liquid regeneration systems in refineries to purify amine liquids, ensure desulfurization efficiency, extend equipment service life, and reduce equipment corrosion.

2. Coal Chemical Industry: During coal gas purification, it filters amine liquids, ensures the quality of amine liquids, improves the coal gas purification effect, and reduces the risk of malfunctions in subsequent process equipment.

3. Metallurgical Industry: Processes amine liquids used in metallurgical tail gas desulfurization, ensures the cleanliness of amine liquids, improves desulfurization efficiency, reduces pollutant emissions, and helps meet environmental protection standards.

4. Environmental Protection Projects: In industrial waste gas treatment devices, it purifies amine liquids, enhances waste gas absorption efficiency, reduces operating costs, and improves system stability.

FAQ

1. How to determine the replacement cycle of filter elements in the amine liquid three - stage filtration system?：The replacement cycle of filter elements mainly depends on the pressure difference between the inlet and outlet of the filter and the actual operation duration. When the pressure difference reaches the set threshold, it indicates that the filter element is blocked and needs to be replaced in a timely manner. At the same time, even if the pressure difference does not reach the threshold, but the operation duration reaches the preset value (such as 72 hours), it is also recommended to replace the filter element to ensure the filtration effect. In addition, if the impurity content in the amine liquid suddenly increases, the replacement cycle should be shortened.

2. What should I do if there are abnormal pressure fluctuations during system operation?：Abnormal pressure fluctuations may be caused by various reasons. If the pressure suddenly increases, it may be due to severe blockage of the filter element, incomplete opening of pipeline valves, or foreign objects blocking the pipeline. It is necessary to check the status of the filter element, the opening and closing of valves, and the patency of the pipeline. If the pressure suddenly drops, it may be due to pipeline leakage, pump failure, or valve damage. Immediately check all components of the system, find the leakage point or faulty part, and repair it in a timely manner. If necessary, contact professional personnel for handling.

Conclusion

The amine liquid three - stage filtration system, with its excellent three - stage fine - filtration design, advanced intelligent monitoring technology, and reliable high - efficiency and durability performance, has become a key device for many industries to ensure the quality of amine liquids. Whether in the petrochemical field with extremely high requirements for process stability or in the metallurgical and environmental protection industries with strict control over environmental protection indicators, it can provide professional and efficient filtration solutions. Choosing our amine liquid three - stage filtration system means choosing a high - quality, intelligent, and long - lasting amine liquid purification solution to escort production and operation.

If you are interested in this product or have any questions, please feel free to contact us at any time.

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