磁性纳米粒子类型和质量浓度对微波热解含油污泥的影响  

Effect of magnetic nanoparticles type and mass concentration on microwave pyrolysis of oily sludge

作　　者：蒋华义[1,2] 胡娟 齐红媛 游琰真[1] 王玉龙 武哲 IANG Huayi;HU Juan;QI Hongyuan;YOU Yanzhen;WANG Yulong;WU Zhe(College of Petroleum Engineering,Xi’an Shiyou University,Xi’an 710065,Shaanxi,China;Shaanxi Key Laboratory of Advanced Stimulation of Technology for Oil&Gas Reserviors,Xi’an Shiyou University,Xi’an 710065,Shaanxi,China;School of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710069,Shaanxi,China)

机构地区：[1]西安石油大学石油工程学院,陕西西安710065 [2]西安石油大学陕西省油气田特种增产技术重点实验室,陕西西安710065 [3]西安交通大学能源与动力工程学院,陕西西安710069

出　　处：《化工进展》2022年第7期3908-3914,共7页Chemical Industry and Engineering Progress

基　　金：陕西省自然科学基础研究计划(2019JQ-819);陕西省教育厅科研计划(20JS118)。

摘　　要：鉴于传统微波吸收剂在协同微波热解含油污泥时存在热解效率较低、处理成本较高等问题,本文引入磁性纳米粒子作为新型微波吸收剂,探究了磁性纳米粒子种类和质量浓度在强化微波热解含油污泥中的作用效果和规律。实验结果表明:①在6种磁性纳米粒子(ZnFe_(2)O_(4)、Fe_(3)O_(4)、Ni、NiFe_(2)O_(4)、γ-Fe_(2)O_(3)和Co_(3)O_(4))中,添加ZnFe_(2)O_(4)的实验组热解终温最高,为284℃,气、液相产物最多,分别为382mL和10.5mL;②当微波功率为800W、微波加热时间为20min时,添加纳米ZnFe_(2)O_(4)实验组的热解终温在质量浓度5.0mg/g时最高;③随着纳米ZnFe_(2)O_(4)质量浓度的增加,气相热解产物中H_(2)、CH_(4)和C_(2)H_(6)的含量(体积分数)不同程度增加,CO_(2)的含量不同程度降低,C_(x)H_(y)的含量在ZnFe_(2)O_(4)质量浓度范围为0~5.0mg/g和5.0~15.0mg/g均先增加后降低,变化幅度很小。油相产物中C_(4)~C_(12)组分含量逐渐增加,C_(18+)组分含量逐渐降低,C_(13)~C_(18)组分含量随着ZnFe_(2)O_(4)质量浓度的增加先增加后降低,再小幅增加。In view of the problems of low pyrolysis efficiency and high treatment cost when traditional microwave absorbent is used in the synergistic microwave pyrolysis of oily sludge,this paper introduced magnetic nanoparticles as a new microwave absorbent to explore the effects and rules of the type and mass concentration of magnetic nanoparticles in the enhancement of microwave pyrolysis of oily sludge.The experimental results showed that in the six magnetic nanoparticles(ZnFe_(2)O_(4),Fe_(3)O_(4),Ni,NiFe_(2)O_(4),γ-Fe_(2)O_(3) and Co_(3)O_(4)),the final pyrolysis temperature of the experimental group adding ZnFe_(2)O_(4) was up to 284℃,and the gas and liquid products were 382mL and 10.5mL,respectively.When the microwave power was 800W and the microwave heating time was 20min,the final pyrolysis temperature of the experimental group adding nano-ZnFe_(2)O_(4) was the highest at the mass concentration of 5.0mg/g.In addition,with the increase of nano-ZnFe_(2)O_(4) mass concentration,the contents(volume fraction)of H_(2),CH_(4) and C_(2)H_(6) in the gas phase pyrolysis products increased,while the contents of C_(x)H_(y) and CO_(2) decreased.The contents of C_(4)—C_(12) components in the oil phase products increased gradually,and the contents of C_(18+)components decreased gradually.The contents of C_(13)~C_(18) components increased at first,then decreased and at last increased a little with the increase of the concentration of ZnFe_(2)O_(4).

关 键 词：微波 含油污泥 磁性纳米粒子 热解 吸波剂 

分 类 号：TE83[石油与天然气工程—油气储运工程]