| 引用本文: | 廖小东,王敏灏,李蒲智,江帆,李勇,刘雨露,等. 钙基干法脱硫剂用于烟气中SO2达标排放[J]. 石油与天然气化工, 2024, 53(6): 7-13. |
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| 钙基干法脱硫剂用于烟气中SO2达标排放 |
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廖小东1,2,3,4, 王敏灏5, 李蒲智6, 江帆7, 李勇8, 刘雨露7, 刘宗社1,2,3,4, 刘志华1,2,3,4
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1.中国石油西南油气田公司天然气研究院;2.国家能源高含硫气藏开采研发中心;3.中国石油天然气集团公司高含硫气藏开采先导试验基地;4.国家市场监督管理总局重点实验室（天然气质量控制和能量计量）;5.中国石油西南油气田公司集输工程技术研究所;6.中国石油西南油气田公司蜀南气矿;7.成都信息工程大学资源环境学院;8.中国石油西南油气田公司川西北气矿剑阁天然气净化厂
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| 摘要: |
| 目的 研究钙基干法脱硫剂在烟气脱硫领域的应用，充分发挥钙基脱硫剂成本低、脱硫性能好及对环境友好的优势，以实现烟气中二氧化硫（SO2）的达标排放。方法 采用XRD、BET、FTIR、XPS技术对制备的钙基脱硫剂的理化性质进行表征分析。模拟含硫废气，借助固定床反应器考查SO2含量、反应温度、O2含量、体积空速对钙基干法脱硫剂脱硫性能的影响。结果 制备的钙基脱硫剂脱硫效果较好，其最佳操作温度范围为220~300 ℃，适用于烟气中SO2体积分数不超过0.4%的情况。O2含量的增加产生了新的用于吸附的活性位点，对脱硫过程起到促进作用。当体积空速在 500~2 000 h–1范围内时，硫容变化不大。结论 钙基干法脱硫剂应用于烟气脱硫领域具有高效性和稳定性，可为其在工业领域的广泛应用提供参考。 |
| 关键词: 二氧化硫 钙基脱硫剂 烟气脱硫 达标排放 干法脱硫 |
| DOI：10.3969/j.issn.1007-3426.2024.06.002 |
| 分类号: |
| 基金项目:四川省科技计划项目（重点研发项目）“工业烟气高效干法稀土脱硫剂研究与应用”（2023YFG0103）；中国石油西南油气田公司科技计划项目“天然气净化厂开停工期间烟气达标技术工业试验”（20230307-05） |
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| Calcium-based dry desulfurizer used for SO2 in flue gas up-to-standard emission |
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LIAO Xiaodong1,2,3,4, WANG Minhao5, LI Puzhi6, JIANG Fan7, LI Yong8, LIU Yulu7, LIU Zongshe1,2,3,4, LIU Zhihua1,2,3,4
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1.Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China;2.National Energy R&D Center of High Sulfur Gas Exploitation, Chengdu, Sichuan, China;3.High Sulfur Gas Exploitation Pilot Test Center, CNPC, Chengdu, Sichuan, China;4.Key Laboratory of Natural Gas Quality Control and Energy Measurement, State Administration for Market Regulation, Chengdu, Sichuan, China;5.Research Institute of Gathering and Transportation Engineering Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China;6.Southern Sichuan Gas District, PetroChina Southwest Oil & Gasfield Company, Luzhou, Sichuan, China;7.College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan, China;8.Jian’ge Natural Gas Purification Plant, Northwestern Sichuan Gas District, PetroChina Southwest Oil & Gasfield Company, Guangyuan, Sichuan, China
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| Abstract: |
| Objective The aim is to study the application of calcium-based dry desulfurizer in the field of flue gas desulfurization, and give full play to the advantages of low cost, good desulfurization performance and environmental friendliness of calcium-based desulfurizer, so as to achieve the up-to-standard emission of SO2 in flue gas. Methods The physical and chemical properties of the prepared calcium-based desulfurizer were characterized by XRD, BET, FTIR and XPS. Additionally, simulating sulfur-containing waste gas, the effects of SO2 content, reaction temperature, O2 content and volume space velocity on the desulfurization performance of calcium-based dry desulfurizer were investigated by a fixed bed reactor. Results The prepared calcium-based desulfurizer demonstrated effective desulfurization, and its optimum operating temperature range was 220-300 ℃, which was suitable for the case that the volume fraction of SO2 in flue gas did not exceed 0.4%. The increase of O2 content produced new active sites for adsorption, which could promote desulfurization process. When the volume space velocity was in the range of 500-2 000 h-1, the sulfur capacity did not change much. Conclusions The application of calcium-based dry desulfurizer in the field of flue gas desulfurization has high efficiency and stability, which can provide reference for its wide application in the industrial field. |
| Key words: sulfur dioxide calcium-based desulfurizer flue gas desulfurization up-to-standard emission dry desulfurization |
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