Na2CO3与其他不同吸附剂对燃煤电厂二氧化硫脱除反应动力学的比较

IF 1.6 4区 生物学 Q4 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
I. O. Bibalani, H. Ale Ebrahim
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引用次数: 0

摘要

本文利用复杂的随机孔隙模型对Na2CO3+SO2反应的动力学参数进行了估算。实验温度在100至250°C之间,各种SO2浓度在0.13至1.12 vol.%之间。根据结果,反应速率与浓度的依赖性遵循分数函数。速率常数和产物层扩散率的值在各种温度下表示。最后,试图说明这种吸附剂对SO2去除的意义。因此,将Na2CO3+SO2反应的动力学结果与CaO、CuO和MgO吸附剂对SO2反应动力学的其他类似研究进行了比较。结果表明,Na2CO3具有速率常数高、操作温度低、不完全转化率低的优点。报道的动力学常数对烟气脱硫反应器的设计至关重要,尤其是在燃煤电厂中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparison of Sulfur Dioxide Removal Reactions Kinetics by Na2CO3 and Other Different Sorbents from Coal-fired Power Plants
This work deals with kinetic parameters estimation of Na 2 CO 3 +SO 2 reaction em-ploying sophisticated random pore model. The temperature of experiments ranges from 100 to 250 °C, and various SO 2 concentrations are within 0.13–1.12 vol.%. According to the results, the reaction rate concentration dependency follows the fractional function. The values of rate constants and product layer diffusivities are expressed at various temperatures. Finally, it was attempted to describe the significance of this sorbent for SO 2 removal. Therefore, the kinetic results of Na 2 CO 3 +SO 2 reaction were compared with other similar studies on SO 2 reaction kinetics with CaO, CuO, and MgO sorbents. It was concluded that Na 2 CO 3 shows advantages of higher rate constants, lower operating temperatures, and less possibility of incomplete conversion problem. The reported kinetic constants are essential for design of flue gas desulfurization reactors, especially in coal-fired power plants.
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来源期刊
Chemical and Biochemical Engineering Quarterly
Chemical and Biochemical Engineering Quarterly 工程技术-工程:化工
CiteScore
2.70
自引率
6.70%
发文量
23
审稿时长
>12 weeks
期刊介绍: The journal provides an international forum for presentation of original papers, reviews and discussions on the latest developments in chemical and biochemical engineering. The scope of the journal is wide and no limitation except relevance to chemical and biochemical engineering is required. The criteria for the acceptance of papers are originality, quality of work and clarity of style. All papers are subject to reviewing by at least two international experts (blind peer review). The language of the journal is English. Final versions of the manuscripts are subject to metric (SI units and IUPAC recommendations) and English language reviewing. Editor and Editorial board make the final decision about acceptance of a manuscript. Page charges are excluded.
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