Oligomerization adsorbed olefin species

Next, we allow these adsorbed species to undergo oligomerization by reacting with the primary olefins observed in the reactor effluent, leading to the... 

The previous strategy gives C9 species as the heaviest hydrocarbons on the catalyst. However, we may expect surface species as heavy as C12, resulting from the oligomerization of three C4 species since the C4 species are the most abundant olefins in the reactor. Therefore, we added the following types of oligomerization steps, truncating all possible adsorbed species at 12 carbon atoms ... 

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