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Help! Could everyone please translate these two paragraphs? Thank you! It’s too much to watch. .

2015-12-15View Original

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Extractive distillation can be carried out in continuous operation mode using a sequence of two extractive and regeneration columns, or in a single-batch distillation column that involves at least three batch distillation steps. There are differences between these two operating modes: the batch mode offers greater flexibility regarding the types of products that can be obtained, as well as wider ranges for operating parameters. These parameter ranges can be determined by analyzing the liquid composition profiles in various sections of the column, using an appropriate model, prior to verification through simulation and experimentation. Unusual forms of extractive distillation include processes that use ionic liquids as entrainers, which behave like ordinary heavy-entrainer extractive distillation processes. On the other hand, extractive distillation processes that utilize heterogeneous entrainers provide additional flexibility, both in continuous and batch operations, thanks to the reflux strategies employed, similar to those in heteroazeotropic distillation.
Reply #22015-12-15
Extractive distillation can be carried out in a continuous operation mode, with extraction and regeneration columns in a sequence, or through at least three batch distillation steps in a single batch distillation column. The batch mode, which differs from the two operation modes, offers greater flexibility; it enables the production of products within a wider range of operational parameters, and it allows for the evaluation of the parameter range of the liquid composition distribution in the column cross-section, calculated based on simulations and experiments using an approximate model. The existence of an unusual extractive distillation process: ionic liquid entrainers function like any other heavy entrainer in extractive distillation processes. On the other hand, an extraction distillation process using a heterogeneous azeotrope provides additional flexibility, whether in continuous or batch operation through the reflux policy of heterogeneous azeotropic distillation.
Reply #32015-12-22
Extractive distillation can be carried out in continuous operation mode, either through a sequence of two extraction and regeneration columns, or in a single batch distillation column with at least three batch distillation steps. It can operate continuously; the approach may involve two extraction and regeneration towers working in sequence, or it may use one set of distillation towers to perform three batches of distillation. There are differences between the two operating modes, as the batch mode offers more flexibility in terms of the products that can be obtained and the range of operational parameters. There are indeed differences between these two modes, with batch distillation being more flexible, as it allows for a wider range of products that can be extracted as well as a broader range of process parameters. The parameter ranges can be assessed by analyzing liquid composition profiles in the column sections calculated using an appropriate model, prior to validation through simulation and experiments. The ranges of process operating parameters can be preliminarily evaluated by calculating the liquid composition distribution in the tower sections with an approximate model, followed by verification through simulation and experiments.

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