Are there any standards for the naphthalene content in coke oven gas before and after entering the electric precipitator?
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The manager asked me to find out whether there is a standard for the naphthalene content in coke oven gas before and after it passes through the electrostatic precipitator. I personally think that having a standard after it goes through the electrostatic precipitator is more meaningful, as it helps to determine whether purification has taken place; but what about a standard before it enters? Different processes must have different requirements regarding the impurity content in the products after the reaction, right?
It’s not a standard; it’s used to test the tar content in the export product
My supervisor wants to know whether there is a standard for the naphthalene content before it enters the tar electrocatalyst collector, so as to determine whether the issue sometimes lies with our tar electrocatalyst collector
There are no specific standards; electrostatic tar collectors are used to capture tar
According to the test data, at an outlet temperature of 21°C in the primary cooler, the saturated naphthalene content in the gas is 435 mg/m3. The electrostatic precipitator captures some of the naphthalene (either in solid form or dissolved in the tar) during the process of removing tar.