核桃壳与油房梁煤的共热解协同效应  

Synergistic effect for co-pyrolysis of BHTK and CYFL

作　　者：刘巧霞 高亚男 杨会民 孙鸣[2] 郝婷 黄勇 无 LIU Qiaoxia;GAO Yanan;YANG Huimin;SUN Ming;HAO Ting;HUANG Yong;无(Hydrocarbon High-efficiency Utilization Technology Research Center of Yanchang Petroleum(group)Co.,Ltd,Xi′an710075;School of Chemical Engineering,Northwest University,Xi′an 710069,China;International Science&Technology Cooperation Base for Clean Utilization of National Hydrocarbon Resources,Northwest University,Xi′an 710069,China;Shaanxi Research Center of Engineering Technology for Clean Coal Conversion,School of Chemical Engineering,Northwest University,Xi′an 710069,China)

机构地区：[1]陕西延长石油碳氢高效利用技术研究中心,陕西西安710075 [2]西北大学化工学院,陕西西安710069 [3]西北大学国家碳氢资源清洁利用国际科技合作基地,陕西西安710069 [4]西北大学化工学院陕西省洁净煤转化工程技术中心,陕西西安710069

出　　处：《洁净煤技术》2023年第8期30-40,共11页Clean Coal Technology

基　　金：陕西省重点研发计划资助项目(2023-YBGY-081);延长石油集团科技资助项目(ycsy2022jcts-B-52)。

摘　　要：利用固定床、流化床开展了核桃壳(BHTK)与油房梁煤(CYFL)的共热解研究。在固定床中考察了升温速率、掺混比对共热解的影响。结果表明:随着升温速率增加,失重速率增大,共热解呈现单独热解的简单加和趋势,共热解的协同效应不明显。在流化床中考察了温度、掺混比对产物分布和共热解油协同效应度的影响,结果表明:在压力0.1 MPa,输送气15 L/min,流化气25 L/min,进料速率1.5 kg/h,N_(2)气氛条件下,BHTK质量掺混比30%时,600℃油收率18.75%,此时协同效应度达最大39.30%,协同效应显著,且共热解油品较煤焦油S质量分数由0.60%降至0.38%,C质量分数由82.00%降至72.28%,H/C比由0.095上升至0.099,油品品质提升明显;酚系物主要集中在3-甲酚(21.80%)、苯酚(16.43%)、2,4-二甲基苯酚(13.15%)、邻苯二酚(12.53%),萘系物主要集中在1-甲基萘(45.69%)、烷基萘(19.43%)、2,6-二甲基萘(10.75%),便于油品中精细化学品的提取。The co-pyrolysis ofBHTK and CYFL was studied in fixed bed and fluidized bed.The effects of heating rate and mixing ratio on co-pyrolysis were investigated in fixed-bed experiment.The results shows that with the increase of heating rate,the weight loss rate increased,showing a simple addition trend of single pyrolysis,and the synergistic effect of co-pyrolysis is not obvious.The effects of temperature and mixing ratio on the product distribution and the synergistic effect of co-pyrolysis oil were investigated in the fluidized bed experiment.The results shows significant synergy that when the reaction pressure is 0.1 MPa,conveying gas 15 L/min,flow gas 25 L/min,feed rate 1.5 kg/h and N_(2) atmosphere,the mixing ratio is 30%(BHTK weight ratio),the oil yield is 18.75%at 600℃,and synergistic effect has the maximum 39.30%.Compared with coal tar,the content of S decreased from 0.6%to 0.38%,the content of C decreased from 82.00%to 72.28%,and the H/C increases from 0.095 to 0.099.The quality of oil improves significantly,phenolic compounds are mainly concentrated in 3-cresol(21.80%),phenol(16.43%),2,4-dimethylphenol(13.15%),catechol(12.53%),and naphthalene compounds are mainly concentrated in 1-methylnaphthalene(45.69%),alkylnaphthalene(19.43%),and 2,6-dimethylnaphthalene(10.75%)and other kinds of compounds for extraction using.

关 键 词：核桃壳 油房梁煤 流化床 共热解 协同效应 

分 类 号：TQ530.2[化学工程—煤化学工程]