一种资源化合并处理碳纤维行业废液的系统及工艺
By using a 6-tower 6-effect or 4-tower compressor scheme, combined with a dehydration tower and a refining tower, the problem of low waste liquid recovery efficiency in the carbon fiber industry has been solved, achieving the recovery of high-purity DMSO and acrylonitrile, reducing energy consumption, and improving product quality and economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YANTAI GUOBANG CHEM MASCH TECH CO LTD
- Filing Date
- 2024-09-04
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the waste liquid recovery efficiency generated in the spinning and polymerization stages of the carbon fiber industry is low, resulting in economic losses and environmental pressure, and the energy consumption is high, making it difficult to meet quality requirements.
The system employs a 6-tower 6-effect or 4-tower compressor scheme, and achieves the separation and deep purification of DMSO and acrylonitrile through a spinning dilute solvent pretreatment unit and a return solution pre-separation unit, including a dehydration tower, a purification tower and a residue removal device. Combined with the self-coupling technology of the steam compressor, energy consumption is reduced.
The system achieved the recovery of high-purity DMSO and acrylonitrile, reduced energy consumption, improved product quality, saved 36% to 85% of energy, and obtained high-purity process water, meeting the quality requirements of carbon fiber production.
Smart Images
Figure CN118833974B_ABST