针对煤炭分质利用技术研发过程中的突出问题,延长石油碳氢研究中心研发了具有自主知识产权的粉煤加压热解-气化一体化技术(CCSI)。阐述了CCSI技术的研发历程,介绍了CCSI技术的反应原理、技术难点、工艺流程及特点,简述了CCSI工业化装置...针对煤炭分质利用技术研发过程中的突出问题,延长石油碳氢研究中心研发了具有自主知识产权的粉煤加压热解-气化一体化技术(CCSI)。阐述了CCSI技术的研发历程,介绍了CCSI技术的反应原理、技术难点、工艺流程及特点,简述了CCSI工业化装置的工艺研究、现场标定以及技术鉴定情况,讨论了基于CCSI技术的油、电跨界耦合新模式以及新型煤制油的产业模式。CCSI技术72 h现场标定和技术鉴定结果显示:在以空气为气化剂的条件下,能源转化效率82.75%,煤焦油产率17.12%,粗合成气有效气体积分数35.10%,煤气热值5 013.56 k J/m^3。展开更多
多孔炭电极的表面改性与优化是实现超级电容器优异性能的关键。本文以煤化学工业的固体副产物为碳源,利用二维层状双氢氧化物(MgAl-LDH)的刚性约束作用耦合KOH活化工艺成功制备了二维富氧多孔炭纳米材料(OPCN)。系统研究了炭化温度对OPC...多孔炭电极的表面改性与优化是实现超级电容器优异性能的关键。本文以煤化学工业的固体副产物为碳源,利用二维层状双氢氧化物(MgAl-LDH)的刚性约束作用耦合KOH活化工艺成功制备了二维富氧多孔炭纳米材料(OPCN)。系统研究了炭化温度对OPCN样品微观结构和表面特性的影响,通过SEM、TEM、氮气吸脱附测试以及元素分析等表征手段对炭材料的结构/组成和表面特性进行分析表明,经700℃炭化获得的炭材料样品(OPCN-700)具有较高的氧质量分数(24.4%)和大的比表面积(2388 m^(2) g^(-1)),并表现出良好的润湿性。同时,OPCN-700样品丰富的微孔和二维纳米片结构为电解质离子提供了有效的储存和传输途径。作为超级电容器的电极材料,在电流密度为0.5 A g^(-1)时,其比电容高达382 F g^(-1),并呈现出优异的倍率性能和循环稳定性。该技术策略为富氧原子掺杂二维多孔炭材料的可控制备与水系储能器件的设计构建提供了新思路。展开更多
Scrap tires were pyrolyzed in a continuously stirred batch reactor in the presence and absence of catalysts. The maximum yield of derived oil was up to 55.65 wt%at the optimum temperature, 500 °C. The catalytic p...Scrap tires were pyrolyzed in a continuously stirred batch reactor in the presence and absence of catalysts. The maximum yield of derived oil was up to 55.65 wt%at the optimum temperature, 500 °C. The catalytic pyrolysis was performed using 1.0 wt%（on a scrap tire weight basis） of catalysts based on ZSM‐5, USY,β, SAPO‐11, and ZSM‐22. The oil products were characterized using simula‐tion distillation, elemental analysis, and gas chromatography‐mass spectrometry. The results show that using a catalyst can increase the conversion of scrap tires to gas and decrease char by‐products;the yield of derived oil remains unchanged or a little lower. The oils derived from catalytic pyrolysis had H/C ratios of 1.55–1.65 and contained approximately 70–75 wt%light oil, 0.3–0.58 wt%S and 0.78–1.0 wt%N. Catalysts with high acid strengths and appropriate pore sizes, such as ZSM‐5, USY,β, and SAPO‐11, increased the amount of single‐ring aromatics in the light‐middle‐fraction oil to 45 wt%. The derived oil can therefore be used as a petrochemical feedstock for producing high‐value‐added chemical products or fuel oil.展开更多
文摘针对煤炭分质利用技术研发过程中的突出问题,延长石油碳氢研究中心研发了具有自主知识产权的粉煤加压热解-气化一体化技术(CCSI)。阐述了CCSI技术的研发历程,介绍了CCSI技术的反应原理、技术难点、工艺流程及特点,简述了CCSI工业化装置的工艺研究、现场标定以及技术鉴定情况,讨论了基于CCSI技术的油、电跨界耦合新模式以及新型煤制油的产业模式。CCSI技术72 h现场标定和技术鉴定结果显示:在以空气为气化剂的条件下,能源转化效率82.75%,煤焦油产率17.12%,粗合成气有效气体积分数35.10%,煤气热值5 013.56 k J/m^3。
文摘多孔炭电极的表面改性与优化是实现超级电容器优异性能的关键。本文以煤化学工业的固体副产物为碳源,利用二维层状双氢氧化物(MgAl-LDH)的刚性约束作用耦合KOH活化工艺成功制备了二维富氧多孔炭纳米材料(OPCN)。系统研究了炭化温度对OPCN样品微观结构和表面特性的影响,通过SEM、TEM、氮气吸脱附测试以及元素分析等表征手段对炭材料的结构/组成和表面特性进行分析表明,经700℃炭化获得的炭材料样品(OPCN-700)具有较高的氧质量分数(24.4%)和大的比表面积(2388 m^(2) g^(-1)),并表现出良好的润湿性。同时,OPCN-700样品丰富的微孔和二维纳米片结构为电解质离子提供了有效的储存和传输途径。作为超级电容器的电极材料,在电流密度为0.5 A g^(-1)时,其比电容高达382 F g^(-1),并呈现出优异的倍率性能和循环稳定性。该技术策略为富氧原子掺杂二维多孔炭材料的可控制备与水系储能器件的设计构建提供了新思路。
基金supported by the Basic Research Program of VCC Technology(ycsy2014ky-A-14)~~
文摘Scrap tires were pyrolyzed in a continuously stirred batch reactor in the presence and absence of catalysts. The maximum yield of derived oil was up to 55.65 wt%at the optimum temperature, 500 °C. The catalytic pyrolysis was performed using 1.0 wt%（on a scrap tire weight basis） of catalysts based on ZSM‐5, USY,β, SAPO‐11, and ZSM‐22. The oil products were characterized using simula‐tion distillation, elemental analysis, and gas chromatography‐mass spectrometry. The results show that using a catalyst can increase the conversion of scrap tires to gas and decrease char by‐products;the yield of derived oil remains unchanged or a little lower. The oils derived from catalytic pyrolysis had H/C ratios of 1.55–1.65 and contained approximately 70–75 wt%light oil, 0.3–0.58 wt%S and 0.78–1.0 wt%N. Catalysts with high acid strengths and appropriate pore sizes, such as ZSM‐5, USY,β, and SAPO‐11, increased the amount of single‐ring aromatics in the light‐middle‐fraction oil to 45 wt%. The derived oil can therefore be used as a petrochemical feedstock for producing high‐value‐added chemical products or fuel oil.
