文献类型：期刊文献

英文题名：FAST DETERMINATION OF THE SULFUR SPECIES IN SOLID PHASE SYSTEMS BY A TPO-IR METHOD

作者：Tang, Shiyun Yang, Song Tan, Sheng Guo, Junjiang Tang, Anjiang

第一作者：Tang, Shiyun;唐石云

通信作者：Tang, SY[1];Tang, SY[2]

机构：[1]Guizhou Inst Technol, Coll Chem Engn, Guiyang 550003, Peoples R China;[2]Guizhou Prov Key Lab Energy Chem, Guiyang 550003, Peoples R China

第一机构：贵州理工学院化学工程学院

通信机构：corresponding author), Guizhou Inst Technol, Coll Chem Engn, Guiyang 550003, Peoples R China;corresponding author), Guizhou Prov Key Lab Energy Chem, Guiyang 550003, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2021

卷号：44

期号：1

起止页码：58-63

外文期刊名：QUIMICA NOVA

收录：;Scopus(收录号：2-s2.0-85108408052);WOS:【SCI-EXPANDED(收录号:WOS:000631171400008)】；

基金：The research was supported by National Natural Science Foundation of China (No. 2176605), natural science foundation of Guizhou provincial department of education (Qianjiaohe KY Zi[2017] 009), High level talents research project of GIT and Undergraduate Training Programs for Innovation and Entrepreneurship.

语种：英文

外文关键词：sulfur species; solid minerals; TPO-IR method; rapid determination

摘要：Qualitative and quantitative assessment of total sulfur and sulfur species in solid phase is necessarily important for development of effective desulfurization methods, reduction of environmental pollution, and prevention of catalyst poisoned. In this work, TPO-IR (Temperature Programmed Oxidation- Infrared) method was used for rapid determination of sulfur species in solid minerals. The high purity of Ag2S was used as the calibration materials at the fixed temperature of 1100 degrees C, and the TPO experimental runs were performed on the solid minerals of phosphorite and coal. The results show that pyrite sulfur with T-max of 426 degrees C, and two thiophene sulfurs with T(max )of 450 degrees C and 481 degrees C were found in Kaiyang phosphorite by fitting the TPO-IR curves; while pyrite sulfur with T-max of 432 degrees C, complex sulfide with T-max of 679 degrees C and sulfate sulfur with T-max of 939 degrees C were found in Weng'an phosphorite. For Gas coal, the TPO-IR curves of sulfur release can be deconvoluted into seven individual curves, while that of Anthracite deconvoluted into four individual curves. In conclusion. the TPO-IR method has many advantages for determination of sulfur species in solid phase systems, such as less sample consumption, simple pretreatment, convenient operation and low cost, etc.