How to deal with high moisture content in tar quality
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This post was last edited by klsunft on 2011-5-25 08:48. Tarry quality (excessive moisture content) – how do you deal with it? Here, when the moisture content in the tar exported for sale is as high as 16–20%, quality issues arise. It’s not possible to add a substance to the tar ammonia solution – commonly known as a dehydrating agent – but after a few months of use, the moisture content drops to around 3%. The cost increase is minimal (about 25 yuan per ton of tar), and this solves the problem.
Reply 1# ray1513: Was 71700 added? Do I still need to heat it? How much longer until it stops?
Reply 2# szunited is 71700. No heating is required; everything else can be operated normally.
The tar produced by our facility (using fixed-bed gas generators) is handled by dedicated workers who collect it; some of this tar is dried, while another portion is stored in specialized tanks. Take it away after some time.
What are the properties of reagent 71700? What is the principle of water absorption?
Reply to 1# ray1513: Blowing with air can be used for stripping; after this process, the water content in the tar is less than 3%. If an even lower level is required, heating and fractional distillation can be employed to reduce the water content to less than 0.2%
Tar dehydration is also a problem here. What are the manufacturer and contact information for desiccants? Can they completely replace steam?
The manufacturer’s headquarters is in Suzhou; I’ll give you the phone number tomorrow. The chemical is added to the circulating ammonia water; the tar coming out of the clarification tank contains less than 4% water content. It is then sent to the oil storage facility where normal dehydration processes are applied, resulting in a final tar water content of around 3%.
For our tar water-reducing and viscosity-reducing agent, if dehydration is the only function required, a cost of 20 yuan per ton of tar is sufficient
Can your medication reduce the content of toluene-insoluble substances in tar?
Toluene insolutes include some suspended solids. Our product can accelerate the separation of tar, ammonia water, and tar residue. With accelerated suspension separation, the amount of suspended particles in the circulating ammonia water is reduced by 30%-50%, and the suspended particles in the tar are also reduced, ending up in the tar residue. Therefore, the toluene-insoluble substances in the tar are reduced. The improvements in tar quality brought about by this product are as follows: 1. A reduction of 1%-5% in tar moisture (depending on the initial level of moisture in the tar); 2. A decrease in tar viscosity by 5%-20%; 3. A reduction in toluene-insoluble substances.