Inorganic Chemicals Industry >
Influencing factors of crystallization products in wet desulfurization of carbide slag
Received date: 2022-04-06
Online published: 2023-02-16
The quality of crystalline products in the wet desulfurization of carbide slag directly affects the subsequent resource utilization of desulfurization gypsum.In this work,the effects of pH,oxidation time and calcium carbide slag particle size on the water content,sulfite content,mineral phase composition,and microscopic morphology of crystalline products in calcium carbide slag wet desulfurization were systematically investigated.The results showed that high pH limited the contact between CaSO3 and dissolved oxygen.The pH was 4.00~4.50,the oxidation effect of CaSO3 was the best.In the initial stage,the oxidation rate was significantly influenced by time and the oxidation rate was leveled after 6 h.Too large particle size of calcium carbide slag was led to the surface area decreased,which reduced the contact area between CaSO3 and dissolved oxygen,and too small particle size was prone to electrostatic agglomeration when generating CaSO3,resulting in larger particle size and lower oxidation rate.Therefore,when the particle size of carbide slag is 75.00~93.75 μm,the pH is 4.0 and the oxidation time is 6 h,the crystallization effect of the product(calcium sulfate dihydrate) is the best.
Key words: calcium carbide slag; wet desulfurization; pH; oxidation time; particle size
Fengling YANG , Min ZHAI , Lei REN , Yuanyuan ZHANG , Fangqin CHENG , Hongyu DONG . Influencing factors of crystallization products in wet desulfurization of carbide slag[J]. Inorganic Chemicals Industry, 2023 , 55(2) : 92 -98 . DOI: 10.19964/j.issn.1006-4990.2022-0164
| 1 | 牟秀娟,朱干宇,颜坤,等.干法电石渣性质分析及乙炔气逸出行为研究[J].化工学报,2021,72(2):1107-1115. |
| 1 | MU Xiujuan, ZHU Ganyu, YAN Kun,et al.Properties analysis of dry-process calcium carbide slag and study on acetylene gas escape behavior[J].CIESC Journal,2021,72(2):1107-1115. |
| 2 | 王小虎,吴葵霞,吴德华,等.电石渣在燃煤电厂脱硫工艺中的应用研究进展[J].化工进展,2021,40(S2):140-148. |
| 2 | WANG Xiaohu, WU Kuixia, WU Dehua,et al.Progress in application of calcium carbide slag in desulfurization process of coal-fired power plant[J].Chemical Industry and Engineering Progress,2021,40(S2):140-148. |
| 3 | 王凯,张庆国,田富中.湿法脱硫石膏特性研究进展[J].环境工程,2016,34(S1):448-451. |
| 3 | WANG Kai, ZHANG Qingguo, TIAN Fuzhong.Research progress on characteristics of wet desulfrrization gypsum[J].Environmental Engineering,2016,34(S1):448-451. |
| 4 | 刘林程,左海滨,许志强.工业石膏的资源化利用途径与展望[J].无机盐工业,2021,53(10):1-9. |
| 4 | LIU Lincheng, ZUO Haibin, XU Zhiqiang.Resource utilization approach of industrial gypsum and its prospect[J].Inorganic Chemicals Industry,2021,53(10):1-9. |
| 5 | 赵汶,陈武.石灰石-石膏湿法脱硫过程中浆液液滴及细颗粒物迁移转化特性研究[J].动力工程学报,2019,39(3):242-247. |
| 5 | ZHAO Wen, CHEN Wu.Study on transformation characteristics of slurry droplets and fine particles during limestone gypsum desulfurization process[J].Journal of Chinese Society of Power Engineering,2019,39(3):242-247. |
| 6 | 曹建宗,刘琦,陈文通,等.典型湿法脱硫系统存在的问题及人工智能在优化运行中的应用[J].化工进展,2020,39(S1):242-249. |
| 6 | CAO Jianzong, LIU Qi, CHEN Wentong,et al.Problems of typical wet desulfurization system and application of artificial intelligence in optimal operation[J].Chemical Industry and Engineering Progress,2020,39(S1):242-249. |
| 7 | 徐宏建,潘卫国.脱硫废水亚硫酸钙催化氧化动力学研究[J].上海电力学院学报,2020,36(1):78-82. |
| 7 | XU Hongjian, PAN Weiguo.Research on kinetics of catalytic oxidation of sulfite in desulfurization wastewater[J].Journal of Shanghai University of Electric Power,2020,36(1):78-82. |
| 8 | 徐宏建,李浩然,孙肆鹃,等.有机酸添加剂强化电石渣脱硫的试验研究[J].动力工程学报,2015,35(8):659-665. |
| 8 | XU Hongjian, LI Haoran, SUN Sijuan,et al.Effects of organic acid additives on enhancement of carbide slag flue gas desulfurizati- |
| 8 | on[J].Journal of Chinese Society of Power Engineering,2015,35(8):659-665. |
| 9 | 石少晴,余琬冰,蒋惠梦,等.湿法脱硫系统中二水硫酸钙结晶特性分析[J].环境工程,2019,37(3):104-108. |
| 9 | SHI Shaoqing, YU Wanbing, JIANG Huimeng,et al.Study on crystalline properties of calcium sulfate dihydrate in wet desulfurization system[J].Environmental Engineering,2019,37(3):104- 108. |
| 10 | 崔鹏,吴頔,孙祥斌.pH对反应结晶制备二水硫酸钙的影响[J].应用化工,2019,48(10):2386-2389. |
| 10 | CUI Peng, WU Di, SUN Xiangbin.Effect of pH on crystallization of calcium sulfate dihydrate by reactive crystallization[J].Applied Chemical Industry,2019,48(10):2386-2389. |
| 11 | 马双忱,杨静,张立男,等.多相条件下亚硫酸钙氧化及pH、氧化还原电位(ORP)响应[J].化工进展,2017,36(1):383- 390. |
| 11 | MA Shuangchen, YANG Jing, ZHANG Linan,et al.Sulfite oxidation under heterogeneous conditions and responses for pH and oxidation reduction potential(ORP)[J].Chemical Industry and Engineering Progress,2017,36(1):383-390. |
| 12 | 尤彩霞,李军,孙娜,等.电厂脱硫石膏制水泥缓凝剂二水石膏的研究[J].无机盐工业,2019,51(12):71-74. |
| 12 | YOU Caixia, LI Jun, SUN Na,et al.Study on preparation of dehydrate gypsum from desulfurization gypsum of thermal power pl-ant[J].Inorganic Chemicals Industry,2019,51(12):71-74. |
| 13 | 邓庆德,车建炜,岳益锋,等.影响脱硫石膏品质的因素及其改善措施[J].发电与空调,2014,35(5):14-17,9. |
| 13 | DENG Qingde, CHE Jianwei, YUE Yifeng,et al.Influence factors on the quality of desulfurized gypsum and its control technolo-gy[J].Power Generation & Air Condition,2014,35(5):14- 17,9. |
| 14 | 童艳,周屈兰,惠世恩,等.电石渣在湿法脱硫中的消溶特性[J].动力工程,2006,26(6):884-887. |
| 14 | TONG Yan, ZHOU Qulan, HUI Shien,et al.Dissolution characteristics of carbide slag during wet flue gas desulfurization[J].Journal of Power Engineering,2006,26(6):884-887. |
| 15 | 赵建立,樊兆燕,李英杰,等.碱性工业废渣在湿法脱硫中的消溶特性[J].煤炭学报,2011,36(4):676-680. |
| 15 | ZHAO Jianli, FAN Zhaoyan, LI Yingjie,et al.Dissolution characteristics of alkaline industrial wastes in wet flue gas desulphurization[J].Journal of China Coal Society,2011,36(4):676-680. |
| 16 | 钟秦,刘爱民.湿法烟气脱硫中石灰石溶解特性[J].南京理工大学学报,2000,24(6):561-564,569. |
| 16 | ZHONG Qin, LIU Aimin.Characterization of limestone dissolution for wet flue gas desulfurization[J].Journal of Nanjing University of Science and Technology,2000,24(6):561-564,569. |
| 17 | 张鑫博.脱硫循环浆液中亚硫酸钙的氧化控制研究[D].济南:山东大学,2020. |
| 17 | ZHANG Xinbo.Study on oxidation control of calcium sulfite in desulfurization circulating slurry[D].Jinan:Shandong University,2020. |
| 18 | 杨敦峰.脱硫循环浆液氧化还原特性的研究[D].济南:山东大学,2018. |
| 18 | YANG Dunfeng.Study on redox characteristics of circulating slurry in wet flue gas desulfurization[D].Jinan:Shandong University,2018. |
| 19 | 汪黎东,赵毅,李蔷薇,等.湿法脱硫中亚硫酸盐非催化氧化本征动力学[J].化学学报,2007,65(22):2618-2622. |
| 19 | WANG Lidong, ZHAO Yi, LI Qiangwei,et al.Non-catalyzed intrinsic oxidation kinetics of sulfite in wet desulfurization proce-ss[J].Acta Chimica Sinica,2007,65(22):2618-2622. |
| 20 | 赵立文,朱干宇,李少鹏,等.电石渣特性及综合利用研究进展[J].洁净煤技术,2021,27(3):13-26. |
| 20 | ZHAO Liwen, ZHU Ganyu, LI Shaopeng,et al.Research progress on characteristics and comprehensive utilization of calcium carbide slag[J].Clean Coal Technology,2021,27(3):13-26. |
/
| 〈 |
|
〉 |