摘要:
A humidity control device for use in maintaining the desired humidity of a closed environment, e.g., a container, while also decreasing headspace oxygen, the device including a water vapor and oxygen permeable pouch, an aqueous salt solution containing humidity controlling salts in combination with salts of ascorbic acid or isomers thereof.
摘要:
An air quality control system (AQCS) (14) useful for treating flue gas, such as flue gas produced by a fossil fuel fired boiler (12), is described. In addition to flue gas treatment, the AQCS (14) provides for air preheater (24) flue gas outlet (32a) flue gas temperature reduction and air preheater (24) corrosion prevention while reducing capital costs, increasing reliability and increasing operating flexibility with regard to fuel selection.
摘要:
A method for the reduction of the emission of mercury into the environment from the burning of fossil fuels with the use of polydithiocarbamic compounds. The polydithiocarbamic compounds are used for the capture of mercury from the resulting flue gases using a flue gas desulfurization systems or scrubbers. The method uses polydithiocarbamic compounds in conjunction with a scrubber to capture mercury and reduce its emission and/or re-emission with stack gases. The method is a unique process of reducing the toxic levels of mercury, which allows for the use of coal as a clean and environmentally friendlier fuel source.
摘要:
The invention relates to a filtration device (110) for an air purification appliance, comprising a first filtering cartridge structure (104) containing a classic absorbent or adsorbent material selected from activated carbon or zeolite, characterised in that the device comprises a second, different filtering cartridge structure (106) holding a filtering medium consisting of a specific adsorbent material which is porous and functionalised with at least one probe molecule in such a way as to trap aldehyde-type chemical contaminants.
摘要:
Systems, devices and methods for submarine CO2 scrubbing are disclosed. The system may comprise an assembly including a sorbent, a scrubbing inlet configured to receive a first airflow during an adsorption mode. The first airflow may comprise air received from a cabin of a submarine. The assembly may be configured to flow the first airflow over and/or through the sorbent during the adsorption mode such that the sorbent removes a portion of CO2 entrained in the first airflow. The system may also include a scrubbing outlet configured to expel the scrubbed first airflow from the assembly into the cabin. The system may include an outside air inlet configured to receive a second airflow comprising outside air during a regeneration mode. The system may include a regeneration air outlet in configured to expel the second airflow after the second airflow has flowed over and/or through the sorbent during the regeneration mode.
摘要:
Systems, devices and methods for submarine CO2 scrubbing are disclosed. The system may comprise an assembly including a sorbent, a scrubbing inlet configured to receive a first airflow during an adsorption mode. The first airflow may comprise air received from a cabin of a submarine. The assembly may be configured to flow the first airflow over and/or through the sorbent during the adsorption mode such that the sorbent removes a portion of CO2 entrained in the first airflow. The system may also include a scrubbing outlet configured to expel the scrubbed first airflow from the assembly into the cabin. The system may include an outside air inlet configured to receive a second airflow comprising outside air during a regeneration mode. The system may include a regeneration air outlet in configured to expel the second airflow after the second airflow has flowed over and/or through the sorbent during the regeneration mode.
摘要:
Wet process for the desulphurization of hydrogen sulphide laden gas, comprising absorption of hydrogen sulphide in aqueous medium by a carbonate salt, oxidation of hydrogenosulphide into elemental sulphur in the presence of a vanadium compound with concomitant reduction of said vanadium compound, re-oxidation of said vanadium compound in the presence of the couple quinone-2-sulfonic acid/hydroquinone-2-sulfonic acid or quinone-2-phosphoric acid/hydroquinone-2-phosphoric acid or a salt thereof, the substituted hydroquinone catalyst being reoxidized in the presence of oxygen.
摘要:
A process for capturing at least one of H2S and CO22 from a gaseous stream comprises treating the gaseous stream with an aqueous absorbent comprising a polyamine wherein the polyamine has at least one secondary amine has at least one alkyl substituent having an absence of amine groups.
摘要:
A CO 2 recovering apparatus includes a CO 2 absorber (16) that brings flue gas containing CO 2 into contact with CO 2 absorbent to reduce the CO 2 contained in the flue gas; and a regenerator (18) that reduces CO 2 contained in rich solvent absorbing CO 2 to regenerate the rich solvent, so that lean solvent that is the CO 2 absorbent having the CO 2 reduced in the regenerator (18) is reused in the CO 2 absorber (16). The CO 2 recovering apparatus further includes a controller that detects the difference between the gas temperature (T 1 ) of the flue gas guided into the entrance of the CO 2 absorber (16) and the gas temperature (T 2 ) of the gas exiting the CO 2 absorber (16), and the absorbent concentration (X (Vol%)) of the CO 2 absorbent; and controls to adjust the amount of water contained in the gas depending on the gas temperature difference between the gas entering and the gas exiting the CO 2 absorber (16) and to keep the absorbent concentration of the CO 2 absorbent within a set range (e.g., X 0 ±10% in a relative ratio).