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Showing papers by "Daniel Tondeur published in 2012"


Journal ArticleDOI
TL;DR: In this paper, the authors describe a specific application of energy integration improvement achieved by modifying the flowsheet of the crude oil atmospheric distillation process, which differs from other methods by the application of exergy analysis to visualize and better understand the distribution of energy degradations in the distillation column in order to find a suitable solution to reduce them.

38 citations


Journal ArticleDOI
TL;DR: In this paper, it was shown that placing several flashes after the heat exchangers and feeding the corresponding vapour streams to the appropriate trays of the column reduces the pumparound flows and the heat brought to the preheating train.

19 citations


Journal ArticleDOI
TL;DR: In this article, the feasibility of mono-and di-branched paraffins separation on silicalite was evaluated by performing cyclic breakthrough experiments in liquid phase with mixtures of 2-methylpentane (2MP), 3-methyl pentane (3MP), 2,3-dimethylbutane (23DMB), and 2,2-dimethylamine (22DMB).
Abstract: The feasibility of mono- and di-branched paraffins separation on silicalite was evaluated by performing cyclic breakthrough experiments in liquid phase with mixtures of 2-methylpentane (2MP), 3-methylpentane (3MP), 2,3-dimethylbutane (23DMB), and 2,2-dimethylbutane (22DMB). For mixtures of the faster diffusing species (2MP, 3MP, and 23DMB), cyclic steady state is obtained from the first cycle. On the other hand, when the slow diffusing species 22DMB is involved, a slow accumulation occurs from cycle to cycle, yielding a change of the breakthrough curves for all the species. Using a diffusion model especially adapted to adsorbent saturation loading, the kinetic and thermodynamic parameters of 22DMB were estimated. Influence of the cycling conditions on the separation performance were finally studied by simulation

1 citations