H_(2)-CH_(4)催化活化与煤热解耦合对焦油产率和品质的影响  

Effect of integrated process of coal pyrolysis and catalytic activated H_(2)-CH_(4) on tar yield and quality

作　　者：罗建玲 唐瑞源 刘健 张玉玉 杨婷婷 Luo Jianling;Tang Ruiyuan;Liu Jian;Zhang Yuyu;Yang Tingting(Xi’an Key Laboratory of Low-carbon Utilization for High-carbonResources,Xi’an Shiyou University,Xi’an 710065,Shaanxi,China;Shaanxi Construction Engineering Installation Group Co.,Ltd.,Xi’an 710065,Shaanxi,China)

机构地区：[1]西安石油大学西安市高碳资源低碳化利用重点实验室,陕西西安710065 [2]陕西建工安装集团有限公司,陕西西安710065

出　　处：《工业催化》2024年第6期70-78,共9页Industrial Catalysis

基　　金：中国石油科技创新基金项目(2022DQ02-0402);西安石油大学研究生创新与实践能力培养项目(YCS22214215)。

摘　　要：为实现煤炭资源的清洁高效增油提质,采用两段式固定床反应装置对不同气氛下的煤热解实验进行研究,逐步确定焦油产率较优的煤热解温度和气氛;考察灰分、Fe_(2)O_(3)和CaO催化活化H_(2)-CH_(4)与煤热解耦合,对比添加催化剂前后焦油产率、馏分分布以及组成的变化,充分认识耦合过程对焦油产率和品质的影响。结果表明,相比于临气氛直接热解焦油收率,催化活化H_(2)-CH_(4)与煤热解耦合的焦油收率提高了17.57%,说明煤灰、Fe_(2)O_(3)、CaO对H_(2)-CH_(4)混合气氛均具有较好的催化活化效果;GC-MS结果表明,煤灰和CaO提高了芳烃和酚类物质的含量,降低了醚类含量,Fe_(2)O_(3)降低了焦油中芳烃含量,增加了烯烃和脂类物质的含量;模拟蒸馏结果表明,Fe_(2)O_(3)活化性能优于煤灰和CaO,且催化剂的加入可实现轻油、酚油、洗油含量的增大,萘油和蒽油含量的降低,有利于焦油轻质化。For the purpose of realizing the clean and efficient oil increase and quality improvement of coal resources,this paper adopts the two-Stage fixed-bed reaction device to study the coal pyrolysis under different atmospheres,and determine the coal pyrolysis temperature and atmosphere with better tar yield.The coupling between ash,Fe_(2)O_(3)and CaO catalytic activation of H_(2)-CH_(4)and coal pyrolysis was investigated.In comparison with the changes of tar yield,fraction distribution and composition before and after the addition of catalysts,it helps to study the effect of the process on the yield and quality of tar.The results show that the tar yield of H_(2)-CH_(4)catalytic activation coupled with coal pyrolysis increases by 17.57%compared with that of direct pyrolysis tar in immediate atmosphere,indicating that coal ash,Fe_(2)O_(3)and CaO had better catalytic activation effects on H_(2)-CH_(4)mixed atmosphere.The results of GC-MS show that ash and CaO increase the content of aromatics and phenols,but decrease the content of ethers;Fe_(2)O_(3)decreases the content of aromatics,and increases the content of olefin and lipid.The results of simulation distillation show that Fe_(2)O_(3)has better activation performance than coal ash and CaO,and the addition of catalyst can increase the content of light oil,phenolic oil and washing oil,and reduce the content of naphthalene oil and anthracene oil,which is conducive to the light tar.

关 键 词：煤化学工程 煤热解 热解干气 催化活化 焦油组成 

分 类 号：TQ[化学工程]