Methods for the manufacture of sorbent compositions, sorbent compositions and methods for using the sorbent compositions. The methods include the utilization of an acidic halogen solution as a source of a halogen species that is dispersed on a solid sorbent. The use of the acidic halogen solution results in a highly active halogen species that demonstrates improved efficacy for the removal of heavy metal(s) from a flue gas. The sorbent composition includes a substantially amorphous halogen species associated with a solid sorbent such as powdered activated carbon (PAC).

The invention in its various embodiments is directed to methods and equipment for generating an activated sorbent from a sorbent precursor with the addition of certain chemicals that enhance the effectiveness of the activated sorbent. The invention in its various embodiments is also directed to the methods and equipment for generating some of the chemicals that are added to the raw carbonaceous material or activated sorbent to enhance its effectiveness. The invention in its various embodiments is also directed to methods and equipment for generating certain chemicals that can be added to a gas stream to convert a given gaseous pollutant to a form that is more easily removed from the gas stream.

The present invention relates to an egg-shell type hybrid structure of highly dispersed nanoparticles-metal oxide support, a preparation method thereof, and a use thereof. Specifically, the present invention relates to an egg-shell type hybrid structure of highly dispersed nanoparticles-metal oxide support, providing an excellent platform in a size of nanometers or micrometers which can support nanoparticles selectively in the porous shell portion by employing a metal oxide support with an average diameter of nanometers or micrometers including a core of nonporous metal oxide and a shell of porous metal oxides, a preparation method thereof, and a use thereof.

Provided is a method for producing a water-absorbing resin composition, the method imparting high gel stability, suppressing an increase in the amount of water-absorbing resin particles that are dissolved by a sulfite-based compound, and suppressing yellowing that could occur under a high temperature and high humidity. This method for producing a water-absorbing resin composition comprises a step for spraying an aqueous solution of a sulfite-based compound on surface-crosslinked water-absorbing resin particles, and a step for spraying an aqueous solution of an organic antioxidant on the surface-crosslinked water-absorbing resin particles.

This invention provides processes for reducing the environmental availability of one or more environmental pollutants in solids, liquids, and combinations of solids and liquids.

The present disclosure relates to functionalized carbon-based adsorbents for use in selective removal of paraffin impurities from a light paraffins/olefins mixture, in particular at ambient/normal conditions of temperature and pressure. The carbon-based adsorbent comprises a carbonaceous based material functionalized at least in part on active sites thereof with functional groups configured to selectively adsorb the light paraffins from the mixture, thereby resulting in a purity of at least 99.9% of the light olefins upon separation. As described, the adsorbent may comprise activated carbon functionalized at least in part on active sites thereof with fluorine functional groups. Alternatively, the adsorbent may comprise reduced graphene oxide having at least in part on active sites thereof oxygen groups. Methods for manufacturing the absorbents and use them are also disclosed.

The present disclosure relates to methods for producing metal sulfide disposed on particle substrates. In at least one embodiment, a method for producing an alkali earth hydroxide particle having a metal sulfide disposed thereon includes introducing an alkali earth oxide particle with a metal sulfate to form a first composition. The method includes introducing an alkali sulfide or an alkali earth sulfide with the first composition to form a second composition. The present disclosure further relates to compositions of matter having metal sulfide disposed on a particle substrate. In at least one embodiment, a composition of matter includes an alkali earth hydroxide particle. The composition of matter includes a metal sulfide disposed on the alkali earth hydroxide particle.

The disclosure relates to methods and processes for protecting food supply, organisms including fish and aquatic life, and plants from mercury accumulation by reducing the presence of methyl mercury in ecosystems, sediment, and pore water. The disclosure including treating sediment and/or pore water with an amendment that contains a sorbent and a halogen source, or a halogen containing sorbent.

Provided is a super absorbent polymer, which is a polyacrylic acid (salt)-based super absorbent polymer, and comprises carbon, oxygen, and silicon on a surface thereof, wherein a spectrum derived from analyzing the surface of the super absorbent polymer via Fourier-transform infrared spectroscopy (FT-IR) satisfies Equation 1:

[00001]$\begin{array}{cc}{X}_{\mathrm{COOH}}2.6& \left[\mathrm{Equation}1\right]\end{array}$ wherein in Equation 1, X.sub.COOH is a value determined by dividing an integrated value of a region corresponding to a COOH functional group within the spectrum by an integrated value of a region corresponding to a CH.sub.2 functional group within the spectrum.

A carbon capture composite particle comprising a core and a shell, wherein: (i) the core of the carbon capture composite particle comprises a liquid sorbent reactive with carbon dioxide; and (ii) the shell of the carbon capture composite particle encapsulates said core and comprises a multiplicity of hydrophobic-coated oxide particles, wherein gas-permeable spacings are present between the hydrophobic-coated oxide particles, and said hydrophobic-coated oxide particles have a main group or transition metal oxide inner portion encapsulated by a coating of hydrophobic molecules. Also described herein is a method for capturing carbon dioxide by contacting a gaseous source containing CO.sub.2 with the above-described carbon capture particles. Also described herein is an apparatus with a microwave-transparent or radiofrequency-transparent column (or window in the column) for regenerating carbon capture particles that have been reacted with CO.sub.2 by exposing the particles to microwave or radiofrequency electromagnetic radiation for direct conductive heating.