Determination of converter size!
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What diameter is required for a converter that produces 60,000 tons of sulfuric acid per year! Please describe it in detail!
You can engage a petrochemical design institute for the design; a diameter of 6 meters will suffice! By the way, what is the concentration of sulfuric acid?
For an acid concentration of 98, is there a simple way to calculate it?
The acid concentration is 98%, the conversion gas concentration is 8%, and the original gas concentration is 12%. Is there any simple way to calculate this?
Reply: 60,000 tons per year, acid concentration of 98%, conversion gas concentration of 8%, raw gas concentration of 12%. Is there a simple way to calculate this? Based on the above conditions, it is possible to calculate the gas flow rate required for acid production under standard conditions (hourly flow rate, then convert to secondly flow rate); using a gas flow velocity of 0.3 m/s, the cross-sectional area of the converter can be determined, and thus its diameter as well
For a system with a capacity of 60,000 tons per year, producing 220 tons per day of acid with a concentration of 98.0%, the calculation for the volume of furnace gas required is as follows: Ignoring the percentage of SO3 produced, the formula for the volume of furnace gas needed to produce 1 ton of sulfuric acid (considered as 100% pure) is: V(furnace gas) = 228.57 / η × CSO2. Substituting the values, we get: V(furnace gas) = (228.57 × 220 ÷ 24 × 98.0%) ÷ (98.5% × 99.95% × 8.0%) = 27,145.358 m3/h, which is equivalent to 7.54 meters per second. Dividing this by 0.3 m/s gives 25.13 square meters; however, the calculated value should be 5.66 meters, so 5.8 meters can be used as an appropriate value
Generally, what is the gas velocity related to? What is the specified range for the gas velocity in a 60,000 tons/year system (standard acid)?
In general, what is the gas velocity related to in responses? What is the specified range for gas velocity? Generally, 0.3 m/s is used for domestic catalysts ； Use foreign catalysts to achieve 0.4 m/s (such as Topsoe catalysts)
Currently, domestic catalysts use ring-shaped or chrysanthemum-shaped designs, and the gas flow rate can be set at 0.35 m³/s; if a higher margin of safety is desired, the gas flow rate can be reduced slightly. However, 0.3 m³/s seems too low. This is provided for reference only.
There are also those that use 0.4 m/s.
There are also those that use 0.4 m/s. This mainly refers to units with a capacity of over 400,000 tons and imported catalysts. For larger units, the gas velocity is around 0.45 m/s. As the diameter of the converter increases, the gas velocity also increases, and a certain pressure drop is maintained to ensure even gas distribution. However, if the gas velocity is low, it is possible to increase the amount of catalyst used to compensate for this, but manufacturers generally do not do so.