Abstract: The present disclosure provides a method for selecting key geological parameters of a to-be-prospected block.

Abstract: The present invention refers to the field of flue gas purification, which discloses a method and apparatus for capturing carbon dioxide and producing sulfuric acid by sodium bisulfate; using a three-format electrodialysis apparatus to convert the desulfurized by-product NaHSO4 into H2SO4 while capturing CO2 in the flue gas in the cathode chamber. Under the action of electric field drive and ion exchange membrane, HSO4? enters the anode chamber to generate H2SO4 and is concentrated, and Na+ enters the cathode chamber to generate NaOH; the flue gas containing CO2 to be treated is introduced from the cathode chamber and absorbed by NaOH. The invention provides a simple, green, and economic proceeding method to capture the carbon dioxide in the flue gas during the comprehensive utilization of sodium bisulfate solution, which is of better environmental benefits and improvement of the flue gas treatment technology and reducing the pressure of desulfurization gypsum treatment.

Abstract: The present invention refers to the field of flue gas purification, which discloses a method and apparatus for capturing carbon dioxide and producing sulfuric acid by sodium bisulfate; using a three-format electrodialysis apparatus to convert the desulfurized by-product NaHSO4 into H2SO4 while capturing CO2 in the flue gas in the cathode chamber. Under the action of electric field drive and ion exchange membrane, HSO4? enters the anode chamber to generate H2SO4 and is concentrated, and Na+ enters the cathode chamber to generate NaOH; the flue gas containing CO2 to be treated is introduced from the cathode chamber and absorbed by NaOH. The invention provides a simple, green, and economic proceeding method to capture the carbon dioxide in the flue gas during the comprehensive utilization of sodium bisulfate solution, which is of better environmental benefits and improvement of the flue gas treatment technology and reducing the pressure of desulfurization gypsum treatment.

Abstract: The present invention relates to a system and method for desulfurization and denitrification integrated treatment and recycling of flue gas by using red mud, and belongs to the recycling and environmental protection technology field. The system includes a desulfurization spray tower, an ozone generator, a denitration spray tower, a slurry mixing tank, a slurry storage tank, a vacuum filter, an ammonia water neutralization tank, an aluminum hydroxide precipitation tank, an ammonia water tank, an aluminum hydroxide storage tank, a filter press, an ammonia distillation tower, a dephlegmator, a cooler, a concentrated ammonia water storage tank, a gypsum precipitation tank, and an anaerobic biochemical pool. In the present invention, red mud slurry is used for desulfurization and denitrification treatment of flue gas to remove SO2 and NO in the flue gas, so that SO2 and NO in the flue gas reach an emission standard.

Abstract: The present invention relates to a system and method for desulfurization and denitrification integrated treatment and recycling of flue gas by using red mud, and belongs to the recycling and environmental protection technology field. The system includes a desulfurization spray tower, an ozone generator, a denitration spray tower, a slurry mixing tank, a slurry storage tank, a vacuum filter, an ammonia water neutralization tank, an aluminum hydroxide precipitation tank, an ammonia water tank, an aluminum hydroxide storage tank, a filter press, an ammonia distillation tower, a dephlegmator, a cooler, a concentrated ammonia water storage tank, a gypsum precipitation tank, and an anaerobic biochemical pool. In the present invention, red mud slurry is used for desulfurization and denitrification treatment of flue gas to remove SO2 and NO in the flue gas, so that SO2 and NO in the flue gas reach an emission standard.

Abstract: The present invention disclosed a method for improving the adsorption capacity of a fixed bed and its application in organic waste gas treatment field. The steps are: (1) adsorption: organic waste gas is passed through the adsorption column containing the adsorbent to allow the organic waste to be adsorbed; when VOCs concentration at the outlet end of the adsorption column reached a preset value, the adsorption is halted; (2) desorption: adsorbent that has absorbed VOCs was desorbed by water vapor of 110° C. or higher, or hot nitrogen of 150° C. or higher; the desorbed VOCs enter into a condenser and is recovered in liquid state; (3) pre-adsorption of water: spray water inside the adsorption column after the desorption to adjust the water content of the adsorbent to 8-35%, no other treatment is necessary before the next batch of VOCs adsorption.

Abstract: The present invention disclosed a method for improving the adsorption capacity of a fixed bed and its application in organic waste gas treatment field. The method solved existing problems including high equipment investment cost, low processing capacity, attendant safety risks, etc. The steps are: (1) adsorption: organic waste gas is passed through the adsorption column containing the adsorbent to allow the organic waste to be adsorbed; when VOCs concentration at the outlet end of the adsorption column reached a preset value, the adsorption is halted; (2) desorption: adsorbent that has absorbed VOCs was desorbed by water vapor of 110° C. or higher, or hot nitrogen of 150° C. or higher; the desorbed VOCs enter into a condenser and is recovered in liquid state; (3) pre-adsorption of water: spray water inside the adsorption column after the desorption to adjust the water content of the adsorbent to 8-35%, no other treatment is necessary before the next batch of VOCs adsorption.