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Modeling of the in-duct sorbent injection process for flue gas desulfurization

机译：烟气脱硫管道内吸附剂注入过程的建模

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摘要

Dry scrubbing processes, especially dry sorbent injection technology, offer a more economical technology for retrofitting than wet or semi-wet scrubbing processes. A simple realistic model for the in-duct desulfurization process has been developed. The model has been conceived as an approach useful for both analyzing results and aiding in design of an in-duct desulfurization process. The model of the process involved, which is the basis for the discussion in this paper, has been evaluated by comparing the model results and the experimental data, obtained in a pilot plant study. The predicted values agree reasonably well with the available experimental data, and the relationships in the model presented have been verified. The sensitivity analysis of variables is relevant for the design and operation of the in-duct process, allowing a parametric study that reveals the effect of the different operation and design factors. Although this model is specific to our in-duct pilot plant, it may be used with confidence in commercial DSI (dry sorbent injection) units as it was designed and implemented according to widely accepted engineering rules in this field. The model has been built in an open structure to allow for rearrangements of and extensions to the process.
机译：与湿法或半湿法洗涤工艺相比，干法洗涤工艺，尤其是干吸附剂注入技术，提供了一种更经济的翻新技术。已经开发了一种简单的现实的管道内脱硫过程模型。该模型已被认为是一种既可用于分析结果，又可用于设计管道内脱硫工艺的方法。通过比较模型结果和在中试工厂研究中获得的实验数据，对涉及的过程模型进行了评估，这是本文讨论的基础。预测值与可用的实验数据相当吻合，并且已经验证了模型中的关系。变量的敏感性分析与引入过程的设计和操作有关，因此可以进行参数研究，揭示不同操作和设计因素的影响。尽管此模型特定于我们的管道中试工厂，但由于它是根据该领域公认的工程规则设计和实施的，因此可以在商业DSI（干式吸附剂注入）装置中放心使用。该模型已建立在开放结构中，以允许重新安排和扩展过程。

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