Our potassium permanganate impregnated alumina boasts a high adsorption volume and can effectively remove harmful gases, such as hydrogen sulfide, sulfur dioxide, chlorine, formaldehyde, nitrogen oxides and light organics. Furthermore, its strong oxidizing property allows for further decomposition into harmless substances.
For optimal gas phase contamination control, two dry scrubbing media beds containing GAC and KMnO4-impregnated alumina should be employed in two dry scrubbing media beds.
KMnO4 on Activated Alumina
This invention describes a process for producing uniform granular active alumina forms impregnated with permanganate of an alkali metal, such as potassium permanganate, for use in treating fluid streams. The inventive method involves selectively calcining an alumina trihydrate starting material to produce transition alumina capable of at least partial rehydration; mixing this partially calcined alumina with an aqueous potassium permanganate solution in sufficient amounts to form a cohesive mass and impregnate between 2-4% of it with potassium permanganate impregnation on a dry basis; curing these agglomerates for partial rehydration before drying to remove uncombined water; these steps cut processing steps needed previously for impregnated alumina support production, decreasing costs overall;
KMnO4 on activated alumina is known for its strong oxidizing property, decomposing harmful gases in the air via an oxidation decomposition process and cleaning it of pollution. Additionally, it’s effective against hydrogen sulfide, sulfur dioxide, chlorine formaldehyde nitric oxide and other toxic gasses – with twice its adsorption capacity compared to similar products and long term storage without loss of performance.
Hydrogen Sulfide Adsorbent
potassium permanganate impregnated alumina is an ideal non-flammable and odorless media for extracting hydrogen sulfide from gasses containing nitrogen oxide, carbon dioxide, sulfur oxides or light organic compounds (mercaptans).
Alumina’s large surface area makes it capable of capturing and holding high volumes of H2S molecules, as well as being fast-reacting enough to respond quickly when concentrations vary in gas streams without impacting performance. Due to this versatility, alumina is widely used across many industrial settings including floating production storage and offloading (FPSO) vessels, offshore platforms, natural gas processing plants and petrochemical refineries.
Alumina can also serve as an effective desiccant to remove moisture from gas streams, making alumina an essential step in the production of natural gas while helping prevent pipeline corrosion and maintaining system integrity. Furthermore, it has proven useful when applied to landfill gas and syngas streams.
GC PPA12 is a spherical potassium permanganate-impregnated activated alumina with 12% KMnO4. It’s designed as a chemisorbent to remove Hydrogen Sulfide, Nitrogen Dioxide, Mercaptans and other organics from airstreams; its low pressure drop makes it suitable for panel filter applications; plus its recycling multiple times with little loss in absorption capacity.
Sulfur Dioxide Adsorbent
Activated alumina impregnated with KMnO4 can be an effective means of eliminating sulfur dioxide from ambient air, making this catalyst accessible on various supports such as industrial filter paper, fiberglass matting, plastic mesh screens or macroreticular polystyrene beads. Furthermore, its use as a regenerative desulfurizer reduces concentrations of other gases like hydrogen sulfide and nitrogen oxide as well.
Adsorption occurs via surface complexation properties of KMnO4 on alumina. KMnO4 molecules adhere to its pores and separate from gas streams; heating it at 200degC can reverse this process and release adsorbed molecules reversibly, so reusing of this alumina material.
Studies were undertaken to compare the performance of natural clinoptilolite and modified zeolite with iron oxide nanoparticles in adsorbing sulfur dioxide, with results showing both can bind up to 50 ppm levels of sulfur dioxide with increasing nitrogen contents and capacity increases exponentially.
This study utilized spherical activated alumina impregnated with 12% KMnO4. This material was produced by de-hydroxylating aluminum hydroxide and then calcining, to produce porous pellets with increased surface area relative to volume. To evaluate these adsorbents with regards to sulfur dioxide concentration in ambient air using a Dynasciences monitor.
Desiccant
Desiccants are products used to remove moisture, and there are several varieties. Clay and silica gel desiccants tend to be cost-effective while molecular sieves and activated alumina are more efficient at higher temperatures; in particular, molecular sieves have the capability of reducing moisture down to low levels while being regenerable with thermal treatment.
Use of an appropriate desiccant can protect sensitive goods and valuables from condensation damage. For instance, adding some silica gel packets or oxygen absorbers into a gun case may stop corrosion from destroying ammunition or shorting out electronic circuits. Desiccants are also frequently found in packaging to combat mold growth or preserve medications.
Moisture absorption capacity and regeneration efficiency are two important criteria to keep in mind when selecting a desiccant for use. Chemical analysis can verify its composition and purity; while performance testing assesses it for various criteria. Such tests might include measuring moisture transmission rates, testing for corrosion inhibition abilities or verifying that products can operate under elevated temperatures.
Desiccant needs vary significantly for each application, and each type has distinctive performance characteristics to take into account. AGM Engineering has developed a free online desiccant calculator which quickly estimates unit quantities based on internal volume measurements for Silica Gel, Molecular Sieve and Clay desiccants. For more specific evaluations please reach out for a complimentary consultation with AGM Engineering.