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202203004.pdf
文章编号： 1672-6987（2022）03002608； DOI： 10.16351/j.1672-6987.2022.03.004
张蕊， 李玉刚， 李娜， 邱娜娜， 程华农*， 郑世清（青岛科技大学 计算机与化工研究所，山东 青岛 266042）
摘要： 研究了PDS（酞菁钴四磺酸钠）脱硫再生过程的硫离子浓度（01~6 mmol·L-1），温度（175~55 ℃），pH值（8~11）及PDS（20~100 mg·L-1）等因素对硫离子选择电极和氧化还原电极的影响。硫离子选择电极对硫离子浓度灵敏度更高。随着温度的升高，氧化还原电极电位值下降的幅度更大，大约是硫离子选择电极的10倍。pH值和催化剂PDS对硫离子选择电极的影响更小。说明硫离子选择电极对温度、pH值和PDS的抗干扰性更强。大多数情况下硫离子选择电极的响应时间在3 min之内，比氧化还原电极短。通过测量不同氧硫比条件下主副产品的浓度以及对应的两种电极的电极电位，给出了通过电极电位检测过程氧化状态的方法。
关键词： 脱硫； 电极； 氧化还原； 氧硫比； 检测
中图分类号： TQ 013.1文献标志码： A
引用格式： 张蕊，李玉刚，李娜， 等. 电极法检测PDS脱硫再生过程状态［J］. 青岛科技大学学报(自然科学版), 2022, 43(3): 2633.
ZHANG Rui， LI Yugang， LI Na, et al. Detecting the status of PDS desulfurization regeneration process by electrode methods［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2022， 43（3）： 2633.
Detecting the Status of PDS Desulfurization
Regeneration Process by Electrode Methods
ZHANG Rui， LI Yugang，LI Na， QIU Nana， CHENG Huanong， ZHENG Shiqing
(Institute of Computer and Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: The effects of sulfur ion concentration (01-6 mmol·L-1), temperature (175-55 ℃), pH value (8-11) and PDS (Phthalocyanine Cobalt Sulfonate， 20-100 mg·L-1) on sulfur ion selective electrode and redox electrode in wet oxidation regeneration process were studied. Sulfur ion selective electrode is more sensitive to sulfur ion concentration. With the increase of temperature, the potential value of redox electrode decreased greatly, which was about 10 times that of sulfur ion selective electrode. The pH value and catalyst PDS have less influence on the sulfide ion selective electrode. It shows that the sulfide ion selective electrode is more resistant to temperature, pH value and PDS. In most cases, the response time of the sulfide ion selective electrode is within 3 min, which is shorter than that of the redox electrode. By measuring the concentration of the main and byproducts under different oxygensulfur ratio conditions and the corresponding electrode potentials of the two electrodes, a method for detecting the oxidation state of the process by the electrode potential is given.
Key words: desulfurization; electrode; redox; oxygensulfur ratio; detection
收稿日期： 20210607
基金项目： 山东省重点研发计划项目（2018GGX107004）;山东省自然基金项目（ZR2020MB145）.
作者简介： 张蕊(1997—)，女,硕士研究生.*通信联系人.
