Mineral Gas Adsorbents for the Removal of Ozone from Exhaust Air/Exhaust Gas, Method for Their Production and Regeneration

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

This invention describes the use of granulated natural minerals—specifically, smectite-rich clays, bentonites, or naturally occurring nanohalloysite—as gas adsorbers to remove harmful substances such as ozone, siloxanes, formaldehyde, mercaptans, hydrocarbons, and organic amines from waste air, exhaust gases, natural gas, and gaseous fuels. These mineral adsorbents are used in their natural form, without any chemical treatments or added substances, and feature excellent adsorption, easy regeneration, long lifespan, and non-flammability.

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

• Air purification systems to remove ozone and other pollutants in industrial, commercial, or residential settings.
• Treatment of landfill, sewage, and biogas to remove siloxanes and sulfurous compounds to protect engines and turbines.
• Gas purification in fuel cell and energy industries to reduce contaminants (like formaldehyde and mercaptans) that damage catalysts or equipment.
• Industrial exhaust scrubbing to ensure emissions meet environmental standards for VOCs and toxic gases.
• Applications in indoor air quality control, particularly in public buildings or laboratories where ozone and volatile organic compounds may be present.
• Removal of harmful gases from natural gas and liquefied petroleum gas prior to distribution or usage.

BenefitsContent extracted from patent full text and abstract with AI.

• Low-cost adsorbent production since only naturally occurring minerals are used, without expensive chemical activation or treatments.
• Environmentally friendly solution—no hazardous additives or chemical byproducts generated.
• Long operational lifetime due to efficient regeneration methods (using just air, oxygen, or low-temperature plasma).
• Non-flammable material, improving operational safety compared to activated carbon.
• High adsorption efficiency for a wide range of pollutants including ozone, siloxanes, sulfur compounds, VOCs, and amines.
• Simple manufacturing processes (drying, crushing, sizing) with little energy or resource input compared to synthetic adsorbents.
• Reduces maintenance and materials costs in gas treatment systems.
• Potential to enable compliance with stricter air quality and emission regulations.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to the use of a granulated mineral or mineral agglomerate which contains naturally occurring smectite-rich clays and/or bentonites having a proportion of swellable three-sheet silicates and/or naturally occurring nanohalloysites, where the granulated mineral or mineral agglomerate has not been chemically treated and is free of additives, as gas adsorbent for removing ozone, siloxanes, formaldehyde, mercaptans, hydrocarbons and organic amines from waste air/offgas, natural gas and gaseous energy carriers.