Light naphtha isomerization one-to-one communication office
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If you have any questions, you are welcome to discuss and communicate here.
What is the general theoretical equilibrium concentration of C4 isomerization out of the reactor? What is the actual production?
Thank you for starting the topic. I would like to know the scale and technology of the isomerization units that are currently in production or under construction in China. I know that PetroChina Guangxi Petrochemical and Sinopec Tahe use UOP and have been put into production. Are there any others?
What are the determining factors for using one-pass or circulating hydrogen? Whether the raw materials should be used in one-pass or circulating type mainly depends on the octane number requirements, right? Are there any other considerations?
Recycled hydrogen may be required by the catalyst； I agree with your point of view on the choice of one-pass and recycle processes. The isomerization reaction has equilibrium limits. The octane number improvement of one pass is limited, and the recycle reaction needs to have reached a higher product octane number.
Hydrogen is constantly circulating, and hydrogen is replenished depending on the pressure. The most fundamental thing about the recycling method is that each enterprise starts from its own economic benefits. The octane number of one cycle can be around 82, the octane number of a partial cycle can be around 89, and the octane number of the entire cycle can be around 102
Is there anyone engaged in C5 C6 isomerization? UOP process package
have. Now UOP has many installations in China.
UOP's catalysts for the isomerization of light hydrocarbons include two types of alumina catalysts and sulfated zirconium dioxide catalysts. Can you introduce the advantages and disadvantages of each in detail? And what about the raw materials?
As far as I know, Zhanjiang Petrochemical and Sinochem Quanzhou are also on it, and Hainan Refining and Chemical also has one. If there is more information, I hope we can communicate with each other.