Abstract:
A reclaiming apparatus 106 includes: a sealed container 106a that is an absorbent reservoir for storing therein a part of an absorbent that has absorbed CO2 in flue gas, and a heater that heats the absorbent stored in the sealed container 106a. The reclaiming apparatus 106 distributes a part of the absorbent stored in the sealed container 106a, and brings the distributed absorbent into counter-current contact with steam. Because a part of the absorbent stored in the absorbent reservoir is brought into counter-current contact with the steam, absorbent component contained therein becomes volatilized, and is separated from depleted materials. In this manner, the absorbent component can be extracted from the depleted materials, and a loss of the absorbent can be reduced.
Abstract:
A method of regenerating adsorbent material includes providing a spent adsorbent material and contacting the adsorbent material with a solvent composition to facilitate removing oil and impurities from the spent solvent material.
Abstract:
A process to upgrade heavy oil and convert the heavy oil into lower boiling hydrocarbon products is provided. The process employs a catalyst slurry comprising catalyst particles with an average particle size ranging from 1 to 20 microns. In the upgrade process, spent slurry catalyst in heavy oil is generated as an effluent stream, which is subsequently recovered/separated from the heavy oil via membrane filtration. Residual hydrocarbons, i.e., heavy oil and solvent employed in the filtration for the heavy oil extraction are removed from the catalyst particles in a drying zone which employs at least two drying apparatuses to volatize residual hydrocarbons in the catalyst. Valuable metals can be recovered from catalyst particles for subsequent re-use in a catalyst synthesis unit, generating a fresh slurry catalyst.
Abstract:
The present invention relates to new crystalline molecular sieve SSZ-74 prepared using a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium) dication as a structure-directing agent, and its use in gas separations.
Abstract:
A process for regenerating spent zeolite composites. The process involves contacting the composite, either as a shaped article or a fine powder, with a caustic solution, e.g., sodium hydroxide at treating condition. Once the contacting is completed, the composite is isolated, washed with water, dried and calcined to give a regenerated composite.
Abstract:
Industrial exhaust polyaromatic hydrocarbons are readily absorbed by flowing through a bed of dry porous pellets consisting of a mixture of natural magnesium silicate selected from short chrysotile asbestos fibers, attapulgite and mixtures thereof with a cementitious clay binder, the latter representing from 1 to 20% by weight of the dry pellets, whereby substantially all the particulate and gaseous pollutants present in the exhaust material are adsorbed by the dry porous pellets.
Abstract:
A novel catalytic process is provided for the controlled degradation of organic materials into environmentally compatible products comprising at least carbon dioxide. The process employs a solid catalyst comprising at least one transition element and a peroxide to form a reaction mixture with the organic material which is degraded in the presence of photoenergy absorbable by the catalyst. The catalytic process has multiple applications including the purification of organic solvents; the regeneration of granular activated carbon; the purification of potable water and industrial waste water; and the elimination of organic hazardous and/or toxic substances from collected wastes.
Abstract:
In a reclaiming apparatus (106) that includes an airtight container (106a) as an absorbent storing unit that stores a part of an absorbent that absorbs CO2 included in an exhaust gas and a heating unit that heats the absorbent stored in the airtight container (106a), a part of the absorbent stored in the airtight container (106a) is distributed, and a gaseous body is brought into counterflow contact with the absorbent that is distributed. As a result, since the gaseous body is brought into counterflow contact with a part of the absorbent stored in the absorbent storing unit, an absorbent component volatilizes and is separated from a degraded material, and the absorbent component can be extracted from the degraded material, whereby a loss of the absorbent can be reduced.