MindMap Gallery Gasy pollutant control
This is a mind map about gaseous pollutant control, the main contents include: typical equipment and materials, coordinated control technology of sulfur dioxide and nitrogen oxides, nitrogen oxide control technology, sulfur dioxide control technology, and theoretical basis.
Edited at 2025-03-08 23:57:15Rumi: 10 dimensions of spiritual awakening. When you stop looking for yourself, you will find the entire universe because what you are looking for is also looking for you. Anything you do persevere every day can open a door to the depths of your spirit. In silence, I slipped into the secret realm, and I enjoyed everything to observe the magic around me, and didn't make any noise. Why do you like to crawl when you are born with wings? The soul has its own ears and can hear things that the mind cannot understand. Seek inward for the answer to everything, everything in the universe is in you. Lovers do not end up meeting somewhere, and there is no parting in this world. A wound is where light enters your heart.
Chronic heart failure is not just a problem of the speed of heart rate! It is caused by the decrease in myocardial contraction and diastolic function, which leads to insufficient cardiac output, which in turn causes congestion in the pulmonary circulation and congestion in the systemic circulation. From causes, inducement to compensation mechanisms, the pathophysiological processes of heart failure are complex and diverse. By controlling edema, reducing the heart's front and afterload, improving cardiac comfort function, and preventing and treating basic causes, we can effectively respond to this challenge. Only by understanding the mechanisms and clinical manifestations of heart failure and mastering prevention and treatment strategies can we better protect heart health.
Ischemia-reperfusion injury is a phenomenon that cellular function and metabolic disorders and structural damage will worsen after organs or tissues restore blood supply. Its main mechanisms include increased free radical generation, calcium overload, and the role of microvascular and leukocytes. The heart and brain are common damaged organs, manifested as changes in myocardial metabolism and ultrastructural changes, decreased cardiac function, etc. Prevention and control measures include removing free radicals, reducing calcium overload, improving metabolism and controlling reperfusion conditions, such as low sodium, low temperature, low pressure, etc. Understanding these mechanisms can help develop effective treatment options and alleviate ischemic injury.
Rumi: 10 dimensions of spiritual awakening. When you stop looking for yourself, you will find the entire universe because what you are looking for is also looking for you. Anything you do persevere every day can open a door to the depths of your spirit. In silence, I slipped into the secret realm, and I enjoyed everything to observe the magic around me, and didn't make any noise. Why do you like to crawl when you are born with wings? The soul has its own ears and can hear things that the mind cannot understand. Seek inward for the answer to everything, everything in the universe is in you. Lovers do not end up meeting somewhere, and there is no parting in this world. A wound is where light enters your heart.
Chronic heart failure is not just a problem of the speed of heart rate! It is caused by the decrease in myocardial contraction and diastolic function, which leads to insufficient cardiac output, which in turn causes congestion in the pulmonary circulation and congestion in the systemic circulation. From causes, inducement to compensation mechanisms, the pathophysiological processes of heart failure are complex and diverse. By controlling edema, reducing the heart's front and afterload, improving cardiac comfort function, and preventing and treating basic causes, we can effectively respond to this challenge. Only by understanding the mechanisms and clinical manifestations of heart failure and mastering prevention and treatment strategies can we better protect heart health.
Ischemia-reperfusion injury is a phenomenon that cellular function and metabolic disorders and structural damage will worsen after organs or tissues restore blood supply. Its main mechanisms include increased free radical generation, calcium overload, and the role of microvascular and leukocytes. The heart and brain are common damaged organs, manifested as changes in myocardial metabolism and ultrastructural changes, decreased cardiac function, etc. Prevention and control measures include removing free radicals, reducing calcium overload, improving metabolism and controlling reperfusion conditions, such as low sodium, low temperature, low pressure, etc. Understanding these mechanisms can help develop effective treatment options and alleviate ischemic injury.
Gasy pollutant control
Sulfur dioxide control technology
Pre-combustion control
Coal washing (removal of pyrite sulfur)
Gasification/liquefaction (sulphur element centralized treatment)
Desulfurization during combustion
Fluidized bed combustion (added limestone)
Post-combustion desulfurization (FGD)
Spray tower (empty tower flow rate 3-4m/s)
Swirl plate demister (drop content <75mg/m³)
Oxidation fan (forced oxidation of calcium sulfite)
Nitrogen oxide control technology
Low nitrogen combustion technology
Air-level combustion (deficiency of oxygen in the main combustion zone)
Fuel grading combustion (CH₄ injected in the recombustion zone)
Flue gas recirculation (reduces flame temperature)
Flue gas denitrogenation
Catalyst module (honeycomb/plate)
Ammonia jet grille (AIG)
Flue gas bypass system (protective catalyst)
Frontier Technology
Low-temperature SCR catalyst (Mn-Ce/TiO₂)
Photocatalytic oxidation (TiO₂ nanomaterials)
Microbial denitrification (denitrifying bacteria)
Cooperative COA removal (ozone oxidation and absorption)
Coordinated control technology of sulfur dioxide and nitrogen oxides
Desulfurization and denitrogenation at the same time
Electron beam irradiation method (NH₃ addition to produce ammonium sulfate/ammonium nitrate)
Active focal adsorption (SO₂/NOx segment removal)
Resource technology
Sulfur recovery (Claus process)
Nitric acid production (NOx catalytic oxidation and absorption)
Typical equipment and materials
Absorbing tower design
Packing tower (Baul ring/moon saddle ring)
Empty tower spray (multi-stage nozzle layout)
Anticorrosion materials
Glass flake resin (wet desulfurization)
C276 Hastelloy (high temperature corrosion zone)
Catalyst regeneration
Sound wave cleaning (prevents the passage of blockage)
Chemical cleaning (recovery of active components)
Theoretical basis
Characteristics of gaseous pollutants
SO₂
NOx
Purification principle
Absorption (acid-base neutralization, redox)
Adsorption (physical/chemical adsorption)
Catalytic conversion (SCR/SNCR)
Key Theory
Double membrane theory (gas and liquid mass transfer)
Reaction kinetics (Arenius equation)
Catalyst action mechanism (active component/support)