METHOD AND PLANTS TO INCREASE ALKYLCYCLOPENTANES CONCENTRATION IN AROMATICS-RICH FLOWS Russian patent published in 2017 - IPC C07C5/13 C07C5/367 C07C13/10 C07C15/02 C07B35/00 

FIELD: chemistry.

SUBSTANCE: method includes aromatic-rich flow feeding to the reactor ; saturation (in the reactor saturation zone) of aromatic compounds contained in the aromatic-rich flow with hydrogen and over a nonacidic catalyst to form alkylcyclohexane; isomerization (in the isomerization reactor zone) of alkylcyclohexane amounts greater than about 30 wt % to form dimethylcyclopentane; and dehydrogenation (in the dehydrogenation reactor zone form residual alkylcyclohexane) to form a hydrogen flow and aroomatic compounds in the product flow, wherein the product flow comprises less than about 25 wt % of aromatics and dimethylcyclopentane; direction of hydrogen flow from the dehydrogenation zone to the saturation zone; and product flow removal from the reactor.

EFFECT: reduced level of aromatics in hydrocarbon flows while maintaining a high octane number.

6 cl, 2 dwg