Evaluation method and application of characteristic fingerprint of low-toxicity risk of 30# hard pitch flue gas

By constructing a total ion chromatogram characteristic fingerprint of 30# hard asphalt fume, its unique low-toxicity characteristic components were identified, which solved the shortcomings of the existing technology in evaluating 30# hard asphalt fume, and achieved accurate low-toxicity risk assessment and simple risk determination.

CN122259764APending Publication Date: 2026-06-23YANGZHOU UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YANGZHOU UNIV
Filing Date
2026-05-14
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing technologies lack a systematic evaluation of 30# hard asphalt when assessing the health risks of asphalt fumes, thus failing to accurately reflect its low toxicity characteristics. Furthermore, existing methods cannot distinguish the differences between different toxic components, leading to inaccurate evaluation results.

Method used

A total ion chromatogram characteristic fingerprint of 30# hard asphalt fume was constructed to identify five characteristic peaks (5-hydroxypentanal acetate, alanine, 2,7-dimethyl-1-octanol, acetone, and 3-ethyl-2-methylheptane). A low-toxicity risk assessment benchmark was established by gas chromatography-mass spectrometry analysis to determine the health risk level.

Benefits of technology

The low toxicity risk assessment of 30# hard asphalt fume was achieved, providing intuitive assessment results, avoiding the subjectivity of weight assignment, simplifying the assessment process, and facilitating engineering applications.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure FT_1
    Figure FT_1
  • Figure FT_2
    Figure FT_2
  • Figure FT_3
    Figure FT_3
Patent Text Reader

Abstract

The application discloses a 30# hard pitch flue gas low-toxicity risk characteristic fingerprint spectrum evaluation method and application. The application constructs a total ion flow chromatogram characteristic fingerprint spectrum of 30# hard pitch flue gas, the fingerprint spectrum comprises five characteristic peaks of 5-hydroxyvaleraldehyde acetate, alanine, 2,7-dimethyl-1-octanol, acetone and 3-ethyl-2-methylheptane, a to-be-tested pitch flue gas sample is collected, and whether the corresponding chromatographic peaks appear simultaneously is analyzed; if the corresponding chromatographic peaks appear simultaneously and the total peak area is greater than 30%, the pitch flue gas is determined as low risk. The low-toxicity characteristic fingerprint spectrum unique to 30# hard pitch is used as an evaluation benchmark, and scientific basis is provided for identification of low-emission pitch materials and health protection of construction personnel.
Need to check novelty before this filing date? Find Prior Art