Issues regarding the heating of flammable and explosive gases
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For some flammable and explosive gases, if it is necessary to raise their temperature to 120°C, what method should be used for heating?； I have considered electric heating or steam heating, but since the heating elements of these heaters reach temperatures well above 120°C, it would be dangerous for gas to pass through them. Therefore, I would like to ask if there are any other heating methods that can achieve heating safely
Danger? Do you think gases will explode?
If a flammable and explosive gas comes into contact with a heating element whose surface temperature is 300°C, will the gas not explode in such a situation?
Specific operating conditions, the concentration range, the components involved – with these, the explosion limit can be determined or calculated. Once that is known, the ignition temperature can be ascertained, and requirements regarding surface temperature can be established. This allows for a judgment to be made; the key factor are the operating conditions
I use both steam heating and electric heating; both methods are well-established, and the safety levels are fully sufficient. Flammable and explosive gases are not at risk just by reaching a certain temperature; they also need to come into contact with an oxidizer. As long as it is ensured that the gas contains no oxidizing agents and that the equipment is in good condition, it is safe to connect it wherever is most convenient at the site.
If it’s pure hydrogen, it’s likely that even if the equipment is damaged, it won’t necessarily explode. . . Besides, your gas is flowing; what are you afraid of?
It depends on what kind of gas you’re referring to as explosive. If it can decompose and explode upon self-heating, then it probably won’t work. If it explodes when in contact with air, then there’s no problem; although the temperature of the heating element is very high, there is no oxygen inside, so no explosion will occur
I plan to use an electric heater to heat the VOC gases. If the concentration is not high enough to reach the explosive limit, then will it not explode even when exposed to temperatures of over 300°C?
The gas is a VOC, and the surface temperature of the heating element reaches over 300 degrees
Heating VOC gases in a cycle – I think that’s not safe: Q