文献类型：期刊文献

中文题名：高硫石油焦的湿化学氧化法深度脱硫

英文题名：Deep desulfurization of high-sulfur petroleum coke through wet chemical oxidation

作者：赵普杰[1];马成[1];王际童[1];乔文明[1,2];凌立成[1]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237;[2]华东理工大学特种功能高分子材料及相关技术教育部重点实验室,上海200237

年份：2018

卷号：37

期号：6

起止页码：41

中文期刊名：炭素技术

外文期刊名：Carbon Techniques

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：中国石油科技创新基金(2015D-5006-0405);国家自然科学基金(U1303291;21506061;21576090);上海市青年科技启明星计划(17QB1401700)

语种：中文

中文关键词：高硫石油焦;脱硫;湿化学氧化

外文关键词：High sulfur petroleum coke;desulfurization;wet chemical oxidation

摘要：采用以KMnO_4溶液作为脱硫剂的湿化学氧化脱硫方法,研究了氧化温度、KMnO_4溶液浓度、反应时间、液固比和石油焦颗粒粒度对高硫石油焦脱硫效果的影响,利用傅里叶红外光谱(FTIR)、扫描电镜(SEM)、热重分析(TG)、X射线光电子能谱(XPS)等表征手段,对石油焦脱硫前后的化学结构、表面微观形貌、热稳定性、硫元素的存在形态进行比较分析。实验结果表明:在氧化温度为80℃,KMnO_4溶液浓度(质量分数)为15%、液固比为20 mL/g、反应时间为2 h、石油焦原料粒度为80μm的条件下,石油焦的脱硫率达到最大值(95%)。表征结果表明,经KMnO_4化学氧化处理后,石油焦中的亚砜硫和噻吩硫有机硫基本被完全脱除,亚砜硫和噻吩硫的脱除率分别为96.8%和93.9%。
The effects of oxidation temperature, KMnO4 solution concentration, reaction time, liquid-solid ratio and the particle size of high-sulfur petroleum coke on the desulfurization rate were studied through wet chemical oxidation method. Fourier transform infrared spectroscopy(FTIR), scanning electron microscopy(SEM), thermosgravimetric analysis(TG), X-ray photoelectron spectroscopy(XPS) and other characterization technologies were combined to analyze the chemical structure, surface morphology, thermal stability,chemical state of high sulfur petroleum coke before and after desulfurization. The results show that the desulfurization rate of petroleum coke reached the maximum value of 95% under such conditions of oxidation temperature of 80 ℃,KMnO4 solution concentration of 15%, liquid-solid ratio of 20 mL/g, reaction time of 2 h and particle size of 80 μm. During such deep desulfurization condition, sulfoxide sulfur and thiophenic sulfur of organic sulfur in petroleum coke are completely removed, and the desulfurization efficiencies of sulfoxide sulfur and thiophene sulfur are 96.8% and 93.9%, respectively.