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- W1551155611 abstract "Several homologous series of alkylbenzene isomers in petroleum distillates have been used as indigenous tracers, of known molecular dimensions, to study shape selective catalytic hydrodewaxing processes under real conditions. These compounds, comprising n-alkylbenzenes with an isoprenoidal chain, are present at low levels in distillates from many crudes and can be observed using a selected ion monitoring-GC/MS method. In hydrodewaxing with ZSM-5, these alkylbenzenes, in the order shown above, are increasingly diffusion limited and all are slowly converted relative to the n-paraffins. Differences in hydrodewaxing severity can be followed by monitoring their relative conversions. Direct measurements of methylalkyl-benzenes (MABS) conversions have been useful in explaining the differing hydrocarbon selectivity of ZSM-5 in lube and distillate dewaxing. In some cases, these markers allow one to distinguish products dewaxed over zeolites with other pore dimensions." @default.
- W1551155611 created "2016-06-24" @default.
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- W1551155611 date "1987-04-01" @default.
- W1551155611 modified "2023-09-23" @default.
- W1551155611 title "Indigenous alkylbenzene isomers as probes of zeolite shape selectivity in hydrodewaxing of petroleum distillates" @default.
- W1551155611 hasPublicationYear "1987" @default.
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