摘要:
An exhaust gas treatment facility includes: a combustion chamber for combustion-treating an exhaust gas; a nozzle for letting water flow along an inner wall surface of the combustion chamber; a water-feeding line for supplying water to the nozzle; a primary gas-cleaning chamber; a scrubber; and the like. The water-feeding line has a pipe, a pump, and pipes. An alkali-adding apparatus is provided on the pipe on an upstream side of the pump. The alkali-adding apparatus is controlled so as to regulate a detected pH by a pH meter to be 10 or higher.
摘要:
The present disclosure relates to a cucurbituril-polyethylenimine-silica complex, a method for preparing the same and a carbon dioxide absorbent containing the same. According to the present disclosure, a cucurbituril-polyethylenimine-silica complex may be prepared by forming a complex wherein a cucurbituril is bound to polyethylenimine and including the same inside silica, and it may be used as a carbon dioxide absorbent with superior thermal stability and prevented formation of urea.
摘要:
A method for separating carbon dioxide (CO2) from a gas stream is provided. The method includes reacting at least a portion of CO2 in the gas stream with a plurality of liquid sorbent particles to form a plurality of solid adduct particles and a first CO2-lean gas stream; the solid adduct particles entrained in the first CO2-lean gas stream to form an entrained gas stream. The method includes separating at least a portion of the plurality of solid adduct particles from the entrained gas stream in a separation unit to form an adduct stream and a second CO2-lean gas stream. The method further includes heating at least a portion of the adduct stream in a desorption unit to form a CO2 stream and a regenerated liquid sorbent stream. A system for separating CO2 from a gas stream is also provided.
摘要:
A method for treatment of a flue gas involves feeding the flue gas and a lean solvent to an absorber. The method further involves reacting the flue gas with the lean solvent within the absorber to generate a clean flue gas and a rich solvent. The method also involves feeding the clean flue gas from the absorber and water from a source, to a wash tower to separate a stripped portion of the lean solvent from the clean flue gas to generate a washed clean flue gas and a mixture of the water and the stripped portion of the lean solvent. The method further involves treating at least a portion of the mixture of the water and the stripped portion of the lean solvent via a separation system to separate the water from the stripped portion of the lean solvent.
摘要:
Provided is a composite semipermeable membrane, comprising: a microporous support membrane which comprises a substrate and a porous support, and a polyamide separation functional layer formed on the microporous support membrane, wherein the polyamide has an irreversible heat absorption, which is measured using temperature modulated DSC, of 275 J/g or more at a temperature in the range of −20 to 150° C. in the first heating process.Provided is a high-performance composite semipermeable membrane having high chemical durability, high water permeation and high rejection.
摘要:
Aspects of this disclosure are directed to methods, apparatuses and approaches involving the use of a moisture absorbing material (e.g., desiccant) to control moisture. As may be implemented consistent with one or more embodiments, moisture is removed from an environmental control module that includes a desiccant material contained within a package. Liquid is deposited inside the package and sealed with the desiccant in the package.
摘要:
An amino-siloxane composition is presented. The amino-siloxane composition includes structure (I): wherein Rl is independently at each occurrence a C1-C5 aliphatic radical; R2 is a C3-C4 aliphatic radical; R3 is a C1-C5 aliphatic radical or R4, wherein R4 comprises structure (II): andX is an electron donating group. Methods of reducing an amount of carbon dioxide in a process stream using the amino-siloxane composition are also presented.
摘要:
A method for separating carbon dioxide (CO2) from a gas stream is provided. The method includes reacting at least a portion of CO2 in the gas stream with a plurality of liquid sorbent particles to form a plurality of solid adduct particles and a first CO2-lean gas stream; the solid adduct particles entrained in the first CO2-lean gas stream to form an entrained gas stream. The method includes separating at least a portion of the plurality of solid adduct particles from the entrained gas stream in a separation unit to form an adduct stream and a second CO2-lean gas stream. The method further includes heating at least a portion of the adduct stream in a desorption unit to form a CO2 stream and a regenerated liquid sorbent stream. A system for separating CO2 from a gas stream is also provided.
摘要:
Provided is a compound including an activated metal and a ligand, a carbon dioxide (CO2) absorbent including the compound, a method of preparing the CO2 absorbent, and a method of removing CO2.
摘要:
In one embodiment, a system for recovering carbon dioxide can comprises: a reaction chamber having a first pressure and comprising a gas stream inlet; a phase-changing liquid sorbent, wherein the liquid sorbent is chemical reactive with carbon dioxide to form a solid material; a regeneration unit to decompose the solid material to released carbon dioxide gas and regenerated liquid sorbent; and a dry transport mechanism configured to transport the solid material from the reaction chamber at the first pressure to the regeneration unit at a second higher pressure. In one embodiment, a method of recovering carbon dioxide from a gas stream, comprises: chemically reacting carbon dioxide with a pure amine compound liquid sorbent to form a solid material; without adding a carrier fluid, dry pressurizing and transporting the solid material, to a regeneration unit; and heating the solid material in the regeneration unit to provide a substantially thermal reaction to decompose the solid material to carbon dioxide gas and regenerated liquid sorbent.