【Alkylation】Dry point of alkylated oil
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This post was last edited by Xiao Gong 1985 on 2016-2-1 07:53. What are the reasons for the high dry point of alkylated oils? Please give your advice
There are more side reactions; perhaps this is due to a high amount of dienes in the raw materials, which leads to longer molecular chains in the product and a higher dry point
In general, such situations are mainly due to problems with the reaction mechanism, resulting in some side reactions. Treatment: 1. Start with the raw materials to eliminate impurities as much as possible; 2. Optimize the operations in the reaction stage by increasing the feed alkene-to-hydrocarbon ratio and the reaction alkene-to-hydrocarbon ratio, reducing the reaction temperature, increasing the acid-to-hydrocarbon ratio and acid concentration, and striving to keep the acid concentration above 94%. The dryness level is too high; it’s mainly due to impurities and issues with the reaction process. As for the distillation stage, there’s no need to worry about it.
The main reason for high dryness is, first and foremost, the quality of the raw materials. 2 The acid concentration is too low.
The reactor temperature is high; reduce the coolant temperature and appropriately lower the alkane-to-olefin ratio
In general, such situations are mainly due to problems with the reaction mechanism
The isobutylene content in the feed gas is the main factor to consider
If it’s over 94, your score will be quite high.
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The carbon chain length resulting from side reactions is longer, leading to a higher boiling point and a higher dry point