炭基气态汞脱除剂及其制备和应用
By combining the modification of the carbon substrate with modifiers A and B, a carbon-based gaseous mercury remover that can efficiently remove gaseous elemental mercury at room temperature was prepared. This solves the problem of unsatisfactory mercury removal efficiency in existing technologies at high mercury concentrations and achieves efficient and stable mercury adsorption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2024-09-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing gaseous mercury removal agents are not efficient and effective at removing mercury at room temperature and high mercury concentrations, making it difficult to meet the needs of high mercury emissions during processes such as polyvinyl chloride (PVC) production and natural gas/gold mining.
A carbon-based gaseous mercury remover was prepared by liquid-phase impregnation modification of a carbon substrate with modifier A, followed by pyrolysis modification with modifier B. Modifier A is MXn (M is a metal element with a valence of 1, 2 or 3, X is a halogen, and B is elemental sulfur). Active sites were constructed by specific heat treatment temperature and time to achieve efficient mercury removal at room temperature under high mercury conditions.
It achieves highly efficient adsorption of gaseous elemental mercury at room temperature, with an adsorption efficiency of >90% over a long period of time. The mercury removal products are stable and suitable for treating waste gas with high mercury concentration.
Smart Images
Figure CN118949932B_ABST