摘要
论述了低阶煤热解机理、热解技术及工艺的研究现状,重点分析了低阶煤与其他物质共热解技术,对比了现有低阶煤热解工艺的优缺点,介绍了一种新型小粒径低阶煤热解工艺,分析了低阶煤热解研究发展方向。加氢热解可有效提高煤气及焦油轻质组分产率,现多用于热解机理研究;催化热解催化剂分为裂解催化剂和加氢催化剂,碱金属、碱土金属为典型裂解催化剂,过渡金属及其化合物为典型加氢催化剂,如何提高催化剂效率和寿命是当前研究重点。为加快低阶煤热解工业化进程,各低阶煤热解技术之间、低阶煤热解技术与工艺之间应形成耦合联动机制。
The research status of low rank coal pyrolysis mechanism,pyrolysis technologies and their advantages and disadvantages were introduced. The co-pyrolysis technology with other substances was the emphasis of the paper. A new small particle low rank coal pyrolysis process was introduced. Hydrogen pyrolysis could improve the yields of gas and lighter components of tar,it was used for pyrolysis mechanism now. Catalysts could be divided into cracking catalyst and hydrogenation catalyst,alkali metal,alkaline earth metal were typical cracking catalysts,transition metals and transition metal compounds were typical hydrogenation catalysts. How to improve the efficiency and life of catalyst was the research point. In order to speed up the industrialization of low rank coal pyrolysis,a coupling mechanism between each pyrolysis technologies was urgently needed.
出处
《洁净煤技术》
CAS
2016年第3期40-44,共5页
Clean Coal Technology
基金
国家国际科技合作专项资助项目(2015DFA60320)
国家自然科学基金-神华集团有限公司煤炭联合基金资助项目(U1361122)
中国煤炭科工集团有限公司科技创新基金资助项目(2013ZD007)
煤炭科学技术研究院有限公司技术创新基金资助项目(2012CX01)
关键词
低阶煤
中低温热解
耦合联动
梯级利用
low rank coal
medium-and-low temperature pyrolysis
coupling mechanism
cascade utilization
