Pictures of off-flow in hydrogen peroxide clay bed
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I remember that many years ago someone in a paper published some actual photos showing severe skewing of flow inside a white clay bed after it was opened; I can’t find them anymore. Could you please help me!
Don’t sink; teachers who remember this, please give some guidance.
Teachers who have photos of off-flow from white soil beds, please share them!
Due to the issues with the pressure plate and stainless steel mesh, it is easy for the clay bed to turn over, and the main cause of this is the deviation of the working fluid. There are some issues with the design of the working fluid distributor in this clay bed.
Many manufacturers end up turning over their clay beds; a good recommendation is to increase the number of hydrogenated clay beds and use a top-discharge system； The post-treatment clay bed was modified to a liquid-liquid separator, without the inclusion of activated alumina.
The quantity can be increased! By using top discharge, the resistance in the post-treatment system increases. To address this issue, it is necessary to increase the diameter of the pipes in the post-treatment system, which raises the associated costs. If the pipe diameter is not increased, the high resistance will cause problems in the operation of the alkali tower, and the working fluid will leak out through the vent pipes! The modified treatment system replaces the clay bed with a liquid-liquid separator, without using activated alumina ； Won’t that alkali end up in the oxidation tower and the extraction tower? Of course, that’s another matter if your working fluid system is acidic! But how can the post-treatment degradation products be removed?
What is the relationship with adding post-treatment after a hydrogenated clay bed? It simply moves all the functions of the post-treatment of regenerated and degraded activated alumina to the hydrogenation process. After the post-treatment process, the next unit after the alkali tower is the liquid-liquid separator. Isn’t acid added to your hydrogenation liquid before it enters the oxidation tower?
After the alkali tower are the alkali settler, alkali separator, and liquid-liquid separator
Your idea is great! But consider the alkalinity entering the hydrogenation tower! Moreover, in a alkaline working fluid system, having clay beds in two locations should also serve as a means of control; when the alkalinity in the post-treatment system becomes too high, acid is added – but to what extent? ； Thank you for the advice!
After adding the hydrogenated clay bed, the entire hydrogenation liquid passes through it: firstly, the temperature of the hydrogenation liquid is high, resulting in good regeneration efficiency of anthraquinone； Secondly, it can serve to absorb alkaline solutions ； Thirdly, many manufacturers these days have replaced the internal components of their post-treatment equipment, which allows it to achieve the same quality standards for the working fluid after alkali separation as those achieved using traditional clay beds……
Personally, I don’t think that eliminating the post-treatment clay bed brings any benefits in terms of safety; it also has an impact on the hydrogenation reaction. Moreover, the degradation products resulting from the hydrogenation reaction should not be treated in the same bed as those resulting from post-treatment. Long-term observation and comparison are necessary to monitor changes in the components of the working fluid, as well as any changes in the amount of working fluid that needs to be regenerated offline Welcome to continue the discussion! Repeat *this process!