Sulfur dioxide content
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Please tell me how to calculate the sulfur dioxide content if you know the amount of flue gas? What conditions need to be known and what are the specific formulas? Thanks
For reference, GSO2=1600×B×S GSO2--SO2 emissions, kg； B -- Coal consumption, T ； S --Total sulfur content of coal, %.
Now Japan has developed an infrared spectrometer that specializes in studying the content of various substances in flue gases. You can check the relevant information online. This is what the teacher just said in class today.
This problem is really due to insufficient conditions, the type of fuel used, and the sulfur content in the fuel. The concept of flue gas is too general, smelting? Pulverized coal furnace? There is also the issue of furnace type. I don't know about other things, but if it is a pulverized coal furnace, the general sulfur emission efficiency is about 80-85%, which means that some of the sulfur contained in the coal becomes sulfur dioxide emissions.
This should be the formula for pulverized coal furnaces. It uses a change rate of 80%. The calculation result of this formula is conservative. Generally, the actual value is approximately this value.
In the absence of actual measurement conditions, there are two methods: 1. Calculated based on the amount of coal burned and its sulfur content ； 2. Calculate backward based on the production of by-product sulfuric acid ；
This question is too broad. What is the fuel? Gas, coal, and fuel oil. . . . . . , specifically the sulfur content of each fuel is also different, as well as the combustion method, etc. Haha, please be specific! ! !
Calculation formula of dl5196 3.0.7 The SO2 content in the flue gas before desulfurization is calculated according to the following formula: in the formula: MSO2 - SO2 content in flue gas before desulfurization, t/h ； K - the proportion of sulfur content in coal that is oxidized to SO2 after combustion ； Bg - Coal burning amount at boiler BMCR load, t/h ； ηso2 - desulfurization efficiency of dust collector, see Table 3.0.7 ； q4 - Heat loss due to incomplete combustion of boiler machinery, % ； Sar - the sulfur content of fuel coal, %. Note: For pulverized coal furnace K=0.85~0.9. The K value mainly reflects the level of S oxidation into SO2 during the combustion process. It is recommended that the upper limit of 0.9 be used in the design of the desulfurization device.
Have equipment for online monitoring of SO2
I have done environmental monitoring before and measured the sulfur dioxide content of boiler flue gas. I just put the probe into the flue gas and the instrument displayed the data.
It can be detected with an online or portable SO2 analyzer.
It is better to have instruments. If not, you still need to make estimates from many aspects. It is inaccurate to only perform fuel accounting. At least two estimates should be made and the larger value should be taken.