Tar dehydration
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Our factory uses static dehydration; these days we have been facing difficulties with dehydration, with the maximum level reaching 20
In a still-dehydration tank for tar-ammonia solution, the moisture content can be reduced to 4% after 48 hours. Check whether it’s due to high viscosity of the tar or problems with the remaining ammonia solution.
The key is to ensure that the holding time and tank temperature meet the requirements.
Agree with the person above; the heating temperature and holding time are very important
What was said upstairs is correct – dehydration can proceed properly only when the temperature and time are appropriate
The dehydration temperature is controlled at 90–100, with a resting period of 48 hours.
It is also related to the operation of the coke oven: 1. Coal loading height, 2. Effect of horizontal gas flow, 3. Temperature in the furnace roof area
It’s not clear whether the poster is referring to problems with the dehydration of tar during its production or issues with the dehydration process in the large tanks used in tar processing plants. If it’s the large tanks used for tar production, it’s possible to check whether the level of tar in the mechanical ammonia-based clarification tanks is normal; if the level is too low, it will affect the viscosity of the tar, making dehydration more difficult
The tar may be emulsified; some of it can be taken out to check – if it resembles tofu in texture, then that’s the case. It can be poured into new, high-quality tar residue and heated together for dehydration. Be careful not to pour too much at once. 20%.
The tar may be emulsified; some of it can be taken out to check – if it resembles tofu in texture, then that’s the case. It can be poured into new, high-quality tar residue and heated together for dehydration. ; It is also possible to stir while heating, and it’s best to add a bulking agent, as it gives very good results – we have used it before.
I keep the tar in a dehydrated state for no more than ten hours per day, with the dehydration temperature maintained at 80–90 degrees Celsius; as a result, the moisture content in the tar is usually no more than 4% by the next day. The effect is okay.