-
The measured concentration of sulfur dioxide in a 15t h wood-fired boiler is c(SO2) = GSO2 V = mg M3.
SO2 pollution production coefficient: GSO2 = 17S = fuel (S sulfur content, take the calculation formula according to the pollutant concentration:
c= g w flue gas.
Where: c—the concentration of pollutants (mg nm3);
W flue gas - boiler flue gas volume (nm3 t).
g—the amount of pollution generated (mg t) can be calculated as SO2 as mg m3.
The boiler is a kind of energy conversion equipment, the energy input to the boiler is chemical energy and electrical energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain thermal energy. The original meaning of pot refers to a container of water heated on a fire, and a furnace refers to a place where fuel is burned, and a boiler includes two parts: a pot and a furnace. The hot water or steam produced in the boiler can directly provide the required heat energy for industrial production and people's lives, and can also be converted into mechanical energy through steam power devices, or converted into electrical energy through generators.
The boiler that provides hot water is called a hot water boiler, which is mainly used in life, and there are also a small number of applications in industrial production. The boiler that produces steam is called a steam boiler, often referred to as a boiler, and is mostly used in thermal power stations, ships, locomotives and industrial and mining enterprises.
-
Examples of boiler flue gas emission coefficients and product coefficients of SO2 and NO2 for burning biomass pellet fuels are as follows:
Flue gas emission factor: v fuel.
SO2 pollution production coefficient: GSO2 = 17S = fuel (S sulfur content, take NOX pollution production coefficient: GNOX = fuel.
Smoke and dust production coefficient: gd = kg t - fuel.
According to the formula for calculating the concentration of pollutants:
c= g w flue gas.
Where: c—the concentration of pollutants (mg nm3);
W flue gas - boiler flue gas volume (nm3 t).
g—the amount of pollution generated (mg t).
The concentrations of SO2, NOx, and soot can be calculated:
1) C (soot) = gd v=
Calculated according to the post-dust removal treatment:
c(soot) = gd v=
2) c(so2)= gso2/ v= mg/m33) c(nox)= gnox / v=
-
Yes, but very few. The emission concentration in the soot is 138mg, and the SO2 emission concentration is only 75mgm, which is much lower than the index of the boiler air pollutant emission standard (GWPB3-1999) and meets the national environmental protection requirements.
-
Look at what biomass, generally negligible!
-
First, the emission concentration of soot and sulfur dioxide (mg m3) was measured, the dynamic and static pressure was measured with a pitot tube, the greenhouse was measured, and the flow rate was calculated.
-
In order to unify the positive degree of the collapse of the boiler to supervise the sulfur dioxide emitted by the boiler, the Ministry of Environmental Protection of the People's Republic of China also defined the temperature k273, atmospheric pressure 101325Pa, and the excess air coefficient of boiler flue gas when defining the emission concentration when formulating the standard.
-
Diesel or diesel??
Firewood can be basically ignored, because the total sulfur in the wood is generally not exceeded.
-
No one pays attention to you, I'll help you boss haha It should be a material balance You are missing an empirical formula, so you can't figure it out As follows: Furnace type Flue gas volume tea stove < 14000w chain furnace <10t h 16000w thermal power enterprise 10000w 12000w thermal power enterprise 8000w 10000w generally take 16000w. Then it is the mass of the sulfur element = the mass of the coal the sulfur content of the sulfur content the mass of the sulfur dioxide = the mass of the sulfur element 2 the total volume of the flue gas = the mass of the coal 16000 the concentration of sulfur dioxide = the mass of the sulfur dioxide the total volume of the flue gas If you want to talk about the formula, it's okay anyway, I'll help you do the math:
The concentration of sulfur dioxide = 125000 The sulfur content hehe doesn't care if it's wrong!
-
Need to know the specific data.
Calculated with the products of combustion.
-
Desulfurization efficiency?。。 This should depend on whether there is a desulfurization process.
-
What is the concentration of sulfur dioxide and sulfur trioxide in the flue gas of the power plant, if the mass of sulfur dioxide in the mixed gas is x, and the mass of sulfur trioxide is y, then the mass of oxygen-containing elements in sulfur dioxide = x*32 64*100% = the mass of oxygen-containing elements in sulfur trioxide = y*48 80*100%=(
x:y=1:1
Therefore, the mass fraction of sulfur dioxide in the original gas mixture = 1 (1+1)*100%=50%Answer: The content of sulfur dioxide in the gas is 50%.
-
The converted concentration is obtained by multiplying the measured concentration by the conversion coefficient (peroxide coefficient), the oxygen content of the flue gas you measured is too high, it will cause the coefficient to be too large, and the converted concentration will be doubled several times.
-
Remarks: 1. Smoke and dust concentration (mg m3) = (final weight of filter cartridge - initial weight of filter cartridge) air coefficient 1000000 standard air coefficient Sampling volume 2, soot emission (kg h) = soot concentration Standard smoke standard air coefficient Air coefficient 10000003, (converted) sulfur dioxide concentration (mg m3) = sulfur dioxide air coefficient Standard air coefficient 4, sulfur dioxide emission (kg h) = sulfur dioxide standard smoke volume 1000000
5. (Conversion) nitrogen oxide concentration (mg m3) = nitrogen oxide air coefficient Standard air coefficient 6, nitrogen oxide emission (kg h) = nitrogen oxide standard smoke volume 100000
-
We usually use the soot content per cubic meter to measure the emission concentration of this boiler, and each cubic meter is equal to 1000l Based on the data you provide, your emission concentration is about every cubic meter of emissions per hour.
The effect of the dust removal equipment used in your factory is not bad, and we only control it at about 30 milligrams.
There are many ways to test this.
First: SO2 has bleaching properties, and SO3 has no bleaching properties. >>>More
Sulfur dioxide. Bonding properties of molecules.
1. Bonding characteristics The sulfur dioxide molecule is an angular molecule, and its structure has been measured from the crystal and vapor state: bond length ( bond angle ( as shown in Figure (. At present, there are two representative views on the bonding properties of molecules: >>>More
There is no chemical equation for indicators and acid-base reactions. >>>More
Acidic potassium permanganate.
5so2+2kmno4+2h2o=k2so4+2mnso4+2h2so4 >>>More
You need to understand that different food testing items are different. First of all, this is determined by the different food production and processing technology, the use of sulfur fumigation, the addition of sulfite is used for bleaching and preservative. For example, yuba, daylily, flower tea, canned enoki mushrooms, wolfberry, white melon seeds, preserved fruit preserves, red wine, etc., these foods are easy to use sulfur dioxide additives in order to look good in color and shelf life, and in addition, the "Hygienic Standard for the Use of Food Additives" (GB2760-2007) stipulates that sulfites can be added or sulfur fumigation is used, and the detection indicators are sulfur dioxide residues. >>>More