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  • ISSN 1006-3080
  • CN 31-1691/TQ

5A分子筛催化三辛胺盐酸盐热解过程工艺研究

唐梦亚 刘程琳 杨颖 陈杭 宋兴福 李平

唐梦亚, 刘程琳, 杨颖, 陈杭, 宋兴福, 李平. 5A分子筛催化三辛胺盐酸盐热解过程工艺研究[J]. 华东理工大学学报(自然科学版). doi: 10.14135/j.cnki.1006-3080.20210530002
引用本文: 唐梦亚, 刘程琳, 杨颖, 陈杭, 宋兴福, 李平. 5A分子筛催化三辛胺盐酸盐热解过程工艺研究[J]. 华东理工大学学报(自然科学版). doi: 10.14135/j.cnki.1006-3080.20210530002
TANG Meng ya, LIU Cheng lin, YANG Ying, CHEN Hang, SONG Xing fu, LI Ping. Study on thermal dissociation of trioctylamine hydrochloride catalyzed by 5A molecular sieve[J]. Journal of East China University of Science and Technology. doi: 10.14135/j.cnki.1006-3080.20210530002
Citation: TANG Meng ya, LIU Cheng lin, YANG Ying, CHEN Hang, SONG Xing fu, LI Ping. Study on thermal dissociation of trioctylamine hydrochloride catalyzed by 5A molecular sieve[J]. Journal of East China University of Science and Technology. doi: 10.14135/j.cnki.1006-3080.20210530002

5A分子筛催化三辛胺盐酸盐热解过程工艺研究

doi: 10.14135/j.cnki.1006-3080.20210530002
基金项目: 国家重点研发计划:CO2矿化含氯水溶钙镁废渣无害化处理回收氯关键技术(2018YFB0605703)
详细信息
    作者简介:

    唐梦亚(1995-),女,河北省石家庄人,硕士生,研究方向为资源循环利用,Email:1603554221@qq.com

    通讯作者:

    宋兴福,Email:xfsong@ecust.edu.cn

    李平,Email:liping_2007@ecust.edu.cn

  • 中图分类号: TQ11

Study on thermal dissociation of trioctylamine hydrochloride catalyzed by 5A molecular sieve

  • 摘要: 制碱含钙废液与CO2反应-萃取-结晶耦合工艺低成本运行的关键在于有机胺有效再生。以5A分子筛为有机胺盐酸盐热解催化剂,考察有机胺盐酸盐的热解过程影响,优化工艺参数。结果表明,提高热解温度、载气流量、增大稀释剂和催化剂用量,热解反应速率加快,转化率提高。考虑转化率和能耗,优化的工艺参数为:反应温度180 ℃、载气流量300 mL/min、转速150 r/min、三辛胺盐酸盐与十氢萘质量比为1∶4、与5A分子筛质量比为10∶1,反应4 h转化率达95%,8小时为99%。通过5次循环实验,结果表明5A分子筛保持良好催化活性。

     

  • 图  1  热解装置示意图

    Figure  1.  Schematic diagram of TOAHCl pyrolysis

    图  2  不同温度下5A分子筛催化TOAHCl热解曲线

    Figure  2.  Thermal dissociation curves of TOAHCl catalyzed by 5A at different temperature

    图  3  TOAHCl热解反应一级动力学拟合

    Figure  3.  First-order fitting plot

    图  4  TOAHCl热解活化能拟合

    Figure  4.  Fitting plot of activation energy

    图  5  不同反应温度下5A分子筛催化TOAHCl热解能耗计算   

    Figure  5.  Energy consumption of TOAHCl pyrolysis catalyzed by 5A at different reaction temperature

    图  6  载气流量对5A分子筛催化三辛胺盐酸盐热解过程的影响

    Figure  6.  Effect of carrier gas flow on thermal dissociation of TOAHCl catalyzed by 5A molecular

    图  7  转速对5A分子筛催化TOAHCl热解影响

    Figure  7.  Effect of speed on thermal dissociation of TOAHCl catalyzed by 5A molecular

    图  8  十氢萘用量对5A分子筛催化三辛胺盐酸盐热解效果的影响

    Figure  8.  Effect of decalin content on thermal dissociation of TOAHCl catalyzed by 5A molecular

    图  9  不同十氢萘用量下5A分子筛催化TOAHCl热解能耗计算

    Figure  9.  Energy consumption of TOAHCl pyrolysis catalyzed by 5A at different decalin content

    图  10  5A分子筛用量对TOAHCl热解反应的影响

    Figure  10.  Effect of 5A molecular sieve dosage on thermal dissociation of TOAHCl

    图  11  5A分子筛热解循环实验效果

    Figure  11.  Effect of 5A molecular sieve pyrolysis cycle experiment

    表  1  不同温度下达到不同转化率所用反应时间

    Table  1.   Reaction time for different conversion at different temperature

    T/℃t/h
    90%95%98%99%
    1802.83.64.75.6
    1705.97.710.011.8
    16013.517.623.027.0
    15018.824.532.037.6
    下载: 导出CSV

    表  2  不同十氢萘用量达到不同转化率所用反应时间

    Table  2.   Reaction time for different conversion at different decalin content

    m(三辛胺盐酸盐)m(十氢萘)t/h
    90%95%98%99%
    1∶52.63.44.55.2
    1∶42.93.85.05.9
    1∶35.77.49.711.4
    1∶26.28.110.512.4
    1∶118.524.031.336.9
    下载: 导出CSV
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  • 网络出版日期:  2021-09-18

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