Activated Carbon with Metal-Based Component

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention relates to an advanced form of activated carbon, which is modified with metal-containing ionic liquids. The activated carbon is provided in discrete particles, such as spheres or granules, and is impregnated with a specially formulated metal component (e.g., copper, silver, zinc, tin, nickel, etc.) dissolved in an ionic liquid. This modification imparts both reactive and catalytic properties to the activated carbon, enabling it to simultaneously adsorb and irreversibly bind or neutralize toxic or harmful substances, especially gases. The approach improves performance over traditional metal-impregnated activated carbons, by preventing pore blockage and maintaining high adsorption capacity.

Use CasesContent extracted from patent full text and abstract with AI.

• Protective equipment such as chemical/biological protective suits (including military and civilian ABC suits, gloves, respirators, etc.)
• Air and gas purification filters for removing harmful or toxic chemicals, odors, or pollutants from industrial or indoor air flows
• Medical filtration (e.g., filters for respirators and hospital air sterilization)
• Catalyst supports or as functional catalysts in industrial chemical processes (such as hydrogenation, oxidation, polymerization)
• Gas sensors, particularly for detecting hazardous substances or environmental monitoring
• Fuel cell components (where catalytic or sorption functions are needed)
• Cleanroom air treatment for semiconductor or pharmaceutical manufacturing, where trace gas removal is crucial
• Sorption storage media for gases or liquids in research and industry

BenefitsContent extracted from patent full text and abstract with AI.

• Greatly improved adsorption and retention of toxic or hazardous gases, including ammonia, hydrogen sulfide, and halogen-containing gases, due to synergistic combination of physical and chemical sorption.
• Minimized desorption and emission of previously captured pollutants, leading to safer and more reliable filters (irreversible binding of toxins).
• Broader and more efficient performance across a wide range of humidity and contaminant concentrations, compared to conventional activated carbon materials.
• Prevents pore blockage and maintains high surface area by avoiding crystallization of metal salts within pores, thus preserving adsorption capacity even after impregnation.
• Enhanced lifetime and effectiveness of filters and protective equipment, leading to cost savings and reduced maintenance.
• Customizable to different metals and ionic liquids, which allows tailoring for specific toxic gases or target applications.
• Safe integration with textiles and other substrate materials for wearable protective gear.
• Can serve as both an adsorbent and a catalyst, increasing versatility in chemical and environmental applications.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

Activated carbon, preferably activated carbon with a reactive and/or catalytic equipment, is claimed, where the activated carbon: is in the form of discrete activated carbon particles, preferably in the form of ball and/or grain; and is equipped and/or fitted with at least one metal component, which contains at least one metal-containing, preferably metal compound-containing ionic liquid.