高校化学工程学报2018，Vol.32Issue(1)：237-242,6.DOI:10.3969/j.issn.1003-9015.2017.00.050
钠基固硫剂在低阶煤中的固硫机理研究
Study on Sulfur Fixation Mechanism of Sodium Based Sulfur Fixing Agent in Low Rank Coal
摘要
Abstract
This study investigated NaHCO3effects on combustion sulfur retention in low rank coal. The sulfur fixation efficiency of NaHCO3in weakly caking coal under different conditions was studied and the mechanism was analyzed. The results show that the optimal sulfur-fixing temperature of NaHCO3is 900 ℃, and the combustion sulfur-fixing rate gradually increases with the increase of Na/S ratio. When the Na/S is 2, the rate of sulfur-fixing and the utilization rate of Na based sorbents are 90.57% and 65.83%, respectively. Further XRD and TG-MS characterization show that the sulfur fixation process of NaHCO3is NaHCO3→Na2CO3→Na2SO3→Na2SO4.关键词
低阶煤/弱黏煤/碳酸氢钠/固硫/机理Key words
low rank coals/weakly caking coal/sodium bicarbonate/sulfur fixation/mechanism分类
化学化工引用本文复制引用
闫旭东,郝志强,刘守军,王冰凝,史鹏政,李晋,杨颂..钠基固硫剂在低阶煤中的固硫机理研究[J].高校化学工程学报,2018,32(1):237-242,6.基金项目
太原市科技计划项目(160302) （160302）
山西省专利推广实施资助专项(20171037). （20171037）
