The present invention relates to the process of obtaining adsorbent materials based upon supported metal species on porous silicates, and their use for reducing the amount of sulfur and nitrogen contaminants in petroleum fractions and products derived of, i.e., light and heavy gas oils, FCC gasoline and fuels, where FCC stands for Fluid Catalytic Cracking process. Therefore, the invention comprises the selection, preparation, modification and adsorptive properties of the abovementioned porous materials, which are based on porous silicates with metal species intercalated and/or impregnated, such as Ti(O,OH), Mg(O,OH), Zr(O,OH), Fe(O,OH), Al(O,OH). Also, additional options were considered, for example those comprising metals from the 1.sup.st and 2.sup.nd transition series, such as Cu.sup.+, Ni.sup.2+, Zn.sup.2+, Fe.sup.2+, Ag.sup.+, Co.sup.2+, Ti.sup.4+, V.sup.2+,5+, Cr.sup.3+ and Mn.sup.2+.

The invention relates to a new method for Arsenic adsorption-desorption and sorbent regeneration with no reagents added by taking advantage of the synergic thermo tuning of redox potential of the adsorption-desorption system.

The present invention relates generally to an attrition resistant core-in-shell composite adsorbent comprising at least a zeolite-containing CO.sub.2 removal adsorbent and a binder on an inert dense core. The attrition resistant core-in-shell composite adsorbent has an attrition loss of less than about 2 wt %. The core-in-shell composite adsorbent is preferably used in a multi-layered adsorption system in a cyclic adsorption process, preferably used in a PSA prepurification process prior to cryogenic air separation.

The present invention relates to the process of obtaining adsorbent materials based upon supported metal species on porous silicates, and their use for reducing the amount of sulfur and nitrogen contaminants in petroleum fractions and products derived of, i.e., light and heavy gas oils, FCC gasoline and fuels, where FCC stands for Fluid Catalytic Cracking process. The invention comprises the selection, preparation, modification and adsorptive properties of the abovementioned porous materials, which are based on porous silicates with metal species intercalated and/or impregnated, such as Ti(O,OH), Mg(O, OH), Zr(O, OH), Fe(O, OH), Al(O, OH). Also, additional options were considered, for example those comprising metals from the 1.sup.st and 2.sup.nd transition series, such as Cu.sup.+, Ni.sup.2+, Zn.sup.2+, Fe.sup.2+, Ag.sup.+, Co.sup.2+, Ti.sup.4+, V.sup.2+,5+, Cr.sup.3+ and Mn.sup.2+.

The present disclosure relates to a process for capturing carbon-dioxide from a gas stream. In order to capture the carbon-dioxide, a support is provided and potassium carbonate (K.sub.2CO.sub.3) is impregnated thereon to form an adsorbent comprising potassium carbonate (K.sub.2CO.sub.3) impregnated support. The adsorbent is activated to form an activated adsorbent. The gas stream is passed through the adsorber to enable adsorption of the carbon-dioxide on the activated adsorbent to form a carbon-dioxide laden adsorbent. The carbon-dioxide laden adsorbent is transferred to a desorber for at least partially desorbing the carbon-dioxide from the carbon-dioxide laden adsorbent by passing a carbon-dioxide deficient stream through the desorber. The partially regenerated adsorbent is returned to the adsorber for adsorbing the carbon-dioxide from the carbon-dioxide. The process of the present disclosure reduces the overall energy demand by partially regenerating the adsorbent.

The invention relates to devices, systems, and methods for conditioning a zirconium oxide sorbent module for use in dialysis after recharging. The devices, systems, and methods can provide for conditioning and recharging of zirconium oxide in a single system, or in separate systems.

A method for forming an integrated composite comprises providing a three-dimensional substrate having at least one channel; coating the substrate with a phenolic resin, wherein coating comprises dispersing the phenolic resin on the substrate, impregnating the phenolic resin in the substrate or a combination of both; curing the substrate and the phenolic resin; heating the cured substrate and cured phenolic resin to a temperature in a range of about 600 C. to about 1100 C. in an inert environment thereby pyrolyzing the phenolic resin, forming a conductive carbon network on, in, or both on and in the substrate; and coating a support material on, in, or both on and in the substrate to form an integrated composite.

Methods and related apparatuses for sorbent recharging are provided. The methods and related apparatuses for recharging can recharge a specific rechargeable layer of a sorbent material such as zirconium phosphate in a sorbent cartridge. The methods and apparatuses include passing solutions containing combinations of acids, bases and salts through a module containing a rechargeable sorbent material such as zirconium phosphate in order to replace ions bound to the zirconium phosphate with hydrogen and sodium ions. The method allows for a customizable zirconium phosphate, with control over the ratios of sodium to hydrogen on the recharged zirconium phosphate.

Provided are a water and/or alcohol adsorbent including organic-inorganic hybrid nanoporous materials, and use thereof, and more particularly, a water and/or alcohol adsorbent having a high adsorption amount at a low relative humidity or partial pressure, of which desorption/regeneration is possible at a low temperature, the water and/or alcohol adsorbent including organic-inorganic hybrid nanoporous materials having 0.5 to 3 mol of a hydroxyl group (OH) or a hydroxide anion group (OH.sup.) per 1 mol of a central metal ion, and use thereof.

A heat transfer fluid can be used as part of a multi-phase adsorption environment to allow for improved separations of gas components using a solid adsorbent. The heat transfer fluid can reduce or minimize the temperature increase of the solid adsorbent that occurs during an adsorption cycle. Reducing or minimizing such a temperature increase can enhance the working capacity for an adsorbent and/or enable the use of adsorbents that are not practical for commercial scale adsorption using conventional adsorption methods. The multi-phase adsorption environment can correspond to a trickle bed environment, a slurry environment, or another convenient environment where at least a partial liquid phase of a heat transfer fluid is present during gas adsorption by a solid adsorbent.