Why is the reformed product oil green?
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This post was last edited by dongliangsir on 2011-6-13 22:46. Why is the reformed product oil green?
The reformed product oil contains a large amount of aromatics; these aromatics are colorless due to their refractive properties. However, the presence of significant amounts of olefins resulting from reaction cracking gives it a green color.
The catalyst has too high a chlorine content, and the reaction temperature is high, resulting in the formation of polycyclic aromatic hydrocarbons, namely green oil; reduce the chlorine feed rate immediately!
Could you elaborate more on the masters from the Central Plains?
What does organic chlorine in the oil produced after the dechlorination tank mean in laboratory analysis? I’m new to this and don’t quite understand it! I’m also not clear about the laboratory tests for before and after washing! Could an expert from the Central Plains explain it? Thank you!
Regarding how to determine the olefin content in reformed oil, it is recommended that the original poster take a look at the Q&A on reforming technology written by Li Chengdong. Regarding chlorine reforming and chlorine injection, carbon tetrachloride and tetrachloroethylene are generally chosen; they should belong to organic chlorines. Reformation reaction products generally do not contain organic chlorines, unless the reaction temperature is too low, in which case only chloride ions are present.
The people mentioned above have already explained the reason clearly: the reformed oil has turned green, which indicates that the catalyst is over-chlorinated, and to a significant extent at that. It is necessary to reduce the chlorine injection rate immediately; increasing the water injection volume is not recommended
Guan Yin of the South China Sea! I seem to understand a bit what you mean! Are organic chlorines those that are added to the system from outside? Inorganic refers to the properties inherent in the raw material itself, right? Can I understand it this way?
Here I have a few questions. First, is the green color caused by olefins or by iron ions? I think the green color produced by the reaction between the generated ferrous ions and chloride ions is due to the presence of more substances containing olefins; do all such substances have a green color? Washing involves dissolving the inorganic chlorine present in chlorine-containing oils for subsequent analysis, in order to prevent other substances from affecting the analysis results; the analysis of organic chlorine is carried out after washing
The reformed product oil appears green due to an increased content of polycyclic aromatic hydrocarbons； The increase in polycyclic aromatic hydrocarbons is caused by a high content of olefins ； The high olefin content is caused by excessive chlorination in the system!
This comrade wrote very well; I’ve learned from it!