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现代化工  2022, Vol. 42 Issue (9): 146-150,154    DOI: 10.16606/j.cnki.issn0253-4320.2022.09.029
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
改性城市污泥灰对榆林煤热解挥发物的原位氧化催化裂解研究
郭双淇, 班延鹏, 杨英杰, 吕剑楠, 靳立军, 胡浩权
大连理工大学化工学院, 煤化工研究设计所, 辽宁 大连 116024
In-situ oxidation and catalytic cracking of volatiles from pyrolysis of Yulin coal by modified urban sludge ash
GUO Shuang-qi, BAN Yan-peng, YANG Ying-jie, LV Jian-nan, JIN Li-jun, HU Hao-quan
Research and Design Institute of Coal Chemical Industry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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摘要 利用固定床反应器研究了改性城市污泥灰对榆林煤热解挥发物的氧化催化裂解作用,考察了NiO负载量对产物分布的影响,并通过TG、XRD、NH3-TPD、N2吸附/脱附等表征分析了改性催化剂在煤热解挥发物催化裂解过程中的作用机理。结果表明,与未使用催化剂相比,当使用污泥灰负载20%的NiO为催化剂时,焦油产率从15.58%降到9.96%,但轻质焦油质量分数从58.0%增加到87.5%,气体体积产率增加了2.73倍。催化剂的催化效果随着使用次数增加逐渐降低,表面积碳的累积导致催化剂活性降低。
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郭双淇
班延鹏
杨英杰
吕剑楠
靳立军
胡浩权
关键词:  煤热解  焦油  催化裂解  城市污泥灰  NiO    
Abstract: The oxidative catalytic cracking effect of modified urban sludge ash on Yulin coal is studied by using a fixed bed reactor,and the influence of NiO loading amount on product distribution is investigated.Desorption and other characterizations are conducted to analyze the mechanism of the modified catalyst in the catalytic cracking of coal pyrolysis volatiles.The results show that compared with catalyst-free,the yield of tar by using sludge ash loaded with 20% NiO as catalyst decreases from 15.58% to 9.96%,but the mass fraction of light tar increases from 58.0% to 87.5%.The volume yield of gas increases by 2.73 times.The catalytic effect of the catalyst gradually decreases with the increase of times of uses,which is caused by the accumulation of carbon on the surface area.
Key words:  coal pyrolysis    tar    catalytic cracking    urban sludge ash    NiO
收稿日期:  2021-10-24      修回日期:  2022-07-02           出版日期:  2022-09-20
ZTFLH:  TQ530.2  
基金资助: 国家自然科学基金-山西煤基低碳联合基金(U1710105)
通讯作者:  胡浩权(1961-),男,博士,教授,研究方向为煤化工,通讯联系人,hhu@dlut.edu.cn    E-mail:  hhu@dlut.edu.cn
作者简介:  郭双淇(1997-),男,硕士研究生,研究方向为煤化工和市政污泥,guoshuangqi1997@126.com
引用本文:    
郭双淇, 班延鹏, 杨英杰, 吕剑楠, 靳立军, 胡浩权. 改性城市污泥灰对榆林煤热解挥发物的原位氧化催化裂解研究[J]. 现代化工, 2022, 42(9): 146-150,154.
GUO Shuang-qi, BAN Yan-peng, YANG Ying-jie, LV Jian-nan, JIN Li-jun, HU Hao-quan. In-situ oxidation and catalytic cracking of volatiles from pyrolysis of Yulin coal by modified urban sludge ash. Modern Chemical Industry, 2022, 42(9): 146-150,154.
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https://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2022.09.029  或          https://www.xdhg.com.cn/CN/Y2022/V42/I9/146
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