Selective dealkylation of alkyl polycyclic aromatic hydrocarbons towards innovative upgrading process of practical heavy oil

Nakano, Fumiya; Goma, Tomohide; Suganuma, Satoshi; Tsuji, Etsushi; Katada, Naonobu

doi:10.1039/d0cy01590c

Cited by 8 publications

(2 citation statements)

References 32 publications

(20 reference statements)

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“…Since our previous review 1) , we have reported dealkylation of APAHs in process VGO over various solid acids under a hydrogen atmosphere 12) . Unlike the previous studies 9),10) , our latest research investigated the reactivity of the original hydrocarbons in VGO.…”

Section: Selective Conversion Of Polycyclic Aromatic Hydrocarbons For...mentioning

confidence: 99%

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重質油成分から付加価値化合物を生成するための多環芳香族類の選択的転換

Suganuma

Katada

2023

J. Jpn. Petrol. Inst.

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This review proposes a new strategy for conversion of the heavy oil component into valuable chemicals. A silica monolayer solid acid catalyst was found to convert alkyl polycyclic aromatic hydrocarbons in a heavy oil such as vacuum gas oil (VGO) selectively into long-chain alkanes and polycyclic aromatic hydrocarbons. For application of practical VGO to the dealkylation, removal of basic compounds causing deactivation of solid acid catalyst was also investigated. Dealkylated polycyclic aromatic hydrocarbons were converted into tetralin derivatives by partial hydrogenation, and then into useful benzene derivatives via ring-opening. The contributions of catalyst components were studied. Long chain alkanes were obtained and can be used as fuels for diesel vehicles and aviation, unlike conventional fluid catalytic cracking which derives a wide range of chain lengths as a result of alkane cracking. The strategy is illustrated with experimental results.

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Section: Selective Conversion Of Polycyclic Aromatic Hydrocarbons For...mentioning

confidence: 99%

“…Dealkylation of APAHs in VGO over the solid acids was carried out by a fixed-bed continuous-flow method 12) . Dealkylation of alkylbenzenes such as cumene is well-known to be an easy reaction catalyzed by a Brønsted acid site 13),14) .…”

Section: Dealkylation Of Apahsmentioning

confidence: 99%