How to reduce dissolved hydrogen
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We are equipped with hot high and cold high separators; where does the hydrogen dissolution loss mainly occur? How to reduce dissolution losses?
It is mainly lost in the hot high region
So, does a higher temperature lead to more dissolution? Doesn’t this go against common sense? Isn’t it true that higher temperatures result in lower solubility?
Hydrogen dissolved in the hot high-oil stream enters the hot low stream and is sent out via the light fraction gas discharge device; since the temperature of the hot high-oil stream cannot be adjusted, it is basically impossible to control the amount of hydrogen dissolved in it. Check the purity of the hydrogen; if there is excess PSA available, consider using it for purification
I was wondering, isn’t a higher temperature favorable for parsing? Is there also a significant impact from system pressure?
There should be more loss in the cold high-pressure separator
http://wenku.baidu.com/view/44ef7aeaa5e9856a57126098.html This is a paper on the determination of the solubility of hydrogen in petroleum products; different absorbents result in varying effects of temperature
The solubility of hydrogen in oil products increases as the temperature rises; therefore, it is mainly present in hot fractions
Hydrogen is mainly present in the hot high-pressure section; reducing the dissolved hydrogen level lowers the temperature of the oil fed into this section, but the temperature must not drop below 210°, otherwise ammonium salts will crystallize
Under diesel hydrogenation conditions, the higher the temperature, the greater the solubility of hydrogen in diesel.