Explosion protection rating issues in the formaldehyde production process using the silver methoxide method

2022-05-08View Original

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Hello everyone, the methanol-silver process is used to produce 37% formaldehyde, with a reaction temperature of over 600 degrees. In my opinion, after passing through the absorption tower, formaldehyde is absorbed more effectively than aqueous solutions, which results in an increased hydrogen concentration in the exhaust gas. Therefore, the absorption tower area in the formaldehyde processing facility and the exhaust gas boiler area should be equipped with explosion-proof devices rated for hydrogen according to standard dIICT1. However, the client insists that this is not necessary, as they have previously used explosion-proof equipment rated under standard dIIBT4. I would appreciate some advice from experienced friends regarding the explosion protection rating.

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Explosion protection rating issues in the formaldehyde production process using the silver methoxide method

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