Apparatus for evaluating activated carbon adsorption performance with adjustable solvent vapor concentration

The activated carbon adsorption performance evaluation device, which features a dual-path drying system, two-stage gas distribution, and constant temperature control, solves the problems of concentration instability and condensation in low-concentration solvent vapor testing, and achieves accurate adsorption performance evaluation.

CN224518463UActive Publication Date: 2026-07-17NINGXIA HUAHUI ACTIVATED CARBON
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA HUAHUI ACTIVATED CARBON
Filing Date
2025-08-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional activated carbon adsorption performance testing devices cannot accurately simulate the low-concentration solvent vapor environment in actual industrial waste gas. They suffer from problems such as unstable solvent vapor concentration, easy condensation, and competition for adsorption sites by moisture in the carrier gas, which affect the accuracy of the test.

Method used

It employs a dual-path drying system, a two-stage gas distribution system, constant temperature control, and a solvent vapor regeneration unit. Moisture is removed by a desiccant, and a stable concentration of solvent vapor is generated through two-stage dilution. Combined with pre-adsorption and a purifier, the gas purity is ensured, and the adsorption amount is measured by gravimetric method.

Benefits of technology

It enables standardized testing of the precise and stable generation and adsorption process of low-concentration solvent vapor, ensuring data accuracy and reliability.

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Abstract

The application discloses an active carbon adsorption performance evaluation device with adjustable solvent vapor concentration, and relates to the technical field of material adsorption performance testing. The device comprises a gas input pipeline, a gas drying assembly, a solvent vaporizer, a primary gas mixing device, a constant-temperature water bath, a pre-adsorption pipeline, a gas purifier, a secondary vaporization bottle, a test gas cylinder and an adsorption test pipeline. The gas drying assembly is connected to the input ends of the primary gas mixing device and the test gas cylinder, the solvent vaporizer is connected to the input end of the primary gas mixing device, the output end of the primary gas mixing device is connected to the pre-adsorption pipeline through the constant-temperature water bath, the pre-adsorption pipeline is connected to the gas purifier, the gas purifier is connected to the secondary vaporization bottle, the secondary vaporization bottle is connected to the test gas cylinder, and the output end of the test gas cylinder is connected to the adsorption test pipeline through the constant-temperature water bath. Through the arrangement, the application can realize accurate and stable generation of low-concentration solvent vapor and standardized testing of the adsorption process.
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