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| 镁法烟气脱硫副产物热解回收MgO的研究 | |
| 引用本文： | 亢万忠,沈志刚,周彦波,曾坤,陈昕,仝明,鲁军. 镁法烟气脱硫副产物热解回收MgO的研究[J]. 洁净煤技术, 2011, 17(5): 62-65 |
| 作者姓名： | 亢万忠 沈志刚 周彦波 曾坤 陈昕 仝明 鲁军 |
| 作者单位： | 1. 华东理工大学资源与环境工程学院,上海200237;中国石油化工集团公司宁波技术研究院,浙江宁波315103 2. 华东理工大学资源与环境工程学院,上海,200237 3. 中国石油化工集团公司宁波技术研究院,浙江宁波,315103 |
| 基金项目： | 上海市重点学科基金资助项目(B506) |
| 摘 要： | 镁法烟气脱硫工艺是利用MgO浆液吸收烟气中的SO2,脱硫副产物经过热解还原为MgO后,可再次制浆从而实现吸收剂的循环利用。对某火电厂的脱硫副产物进行分析,发现每克干渣中含MgSO3 0.723 g（折算值）,具有良好的回收利用价值。分别考察了热解温度、恒温时间等热解条件对热解产物的影响,发现在热解温度750℃、恒温时间2 h时,MgO回收率可达到59.8%。热解温度低于750℃时,脱硫副产物单质硫析出占理论硫比例为6.0%;当热解温度达到900℃时,单质硫析出达到了24.0%。故在热解脱硫副产物时,应控制热解温度以减少单质硫的析出。 |
| 关 键 词： | 烟气脱硫 镁法循环 热解 脱硫副产物 MgO |
Research on recovery of MgO by desulfurization by-product of magnesium oxide |
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| KANG Wan-zhong,SHEN Zhi-gang,ZHOU Yan-bo,ZENG Kun,CHEN Xin,TONG Ming,LU Jun. Research on recovery of MgO by desulfurization by-product of magnesium oxide[J]. Clean Coal Technology, 2011, 17(5): 62-65 | |
| Authors: | KANG Wan-zhong SHEN Zhi-gang ZHOU Yan-bo ZENG Kun CHEN Xin TONG Ming LU Jun |
| Affiliation: | KANG Wan-zhong1,2,SHEN Zhi-gang1,ZHOU Yan-bo1,ZENG Kun1,CHEN Xin2,TONG Ming2,LU Jun1(1.College of Resource and Environmental Engineering,East China University of Science and Technology,Shanghai 200237,China,2.Sinopec Ningbo Research Institute of Technology,Ningbo 315103,China) |
| Abstract: | Magnesium oxide slurry is used for sulfur dioxide removal in regenerative magnesia scrubbing flue gas desulfurization(FGD) system.Magnesia is regenerated from desulfurization by-products through pyrolysis process and is applied in the system as recycling agent.A thermal power plant desulfurization by-products were analyzed,the plant desulfurization by-product contents 0.842 g MgSO3 per-gram of dry residue,has great recovery value.Investigated the pyrolysis conditions of the by-product such as pyrolysis temp... |
| Keywords: | flue gas desulfurization regenerative magnesia recycling pyrolysis desulfurization by-products MgO |
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