CHANGES OF SPECIFIC PORE SURFACE AREA AND   PORE VOLUME OF PETROLEUM COKE DURING COMBUSTION

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CHANGES OF SPECIFIC PORE SURFACE AREA AND PORE VOLUME OF PETROLEUM COKE DURING COMBUSTION

Online:2000-12-25 Published:2000-12-25

石油焦燃烧过程中比表面积和孔容积变化规律的实验研究

沈伯雄,姚强,刘德昌,陈汉平

清华大学煤的清洁燃烧技术国家重点实验室!北京100084,清华大学煤的清洁燃烧技术国家重点实验室!北京100084,华中理工大学煤燃烧国家重点实验室!武汉430074,华中理工大学煤燃烧国家重点实验室!武汉430074

Abstract

Abstract: According to measurements,the specific pore surface area and pore volume of petroleum coke (PC) during combustion were found to: first increase, then decrease and increase again. This indicates that the combustion of PC can be divided into three phases: kinetics control, diffusion control and again kinetics control.The combustion of PC is described in accordance with a fractal rule. The fractal dimension can be compared to the rate of combustion.

摘要： 通过对石油焦燃烧过程中不同燃尽率焦样的比表面积和孔容积的测定 ,表明石油焦的比表面积和孔容积先增大 ,后减小到一定数值 ,最后再增大 .说明石油焦的燃烧经历动力控制到扩散控制最后再动力控制的过程 .石油焦的燃烧符合分形关系 ,该分形维数可以同燃烧速率作比较 .

CLC Number:

TQ51

Shen Boxiong  and Yao Qiang Liu Dechang and Chen Hanping (National Engineering Research Center of Coal Combustion, (National Laboratory of Coal Combustion,Huazhong University Tsinghua University,Beijing?100084,China) o. CHANGES OF SPECIFIC PORE SURFACE AREA AND PORE VOLUME OF PETROLEUM COKE DURING COMBUSTION[J]. .

沈伯雄,姚强,刘德昌,陈汉平. 石油焦燃烧过程中比表面积和孔容积变化规律的实验研究 [J]. CIESC Journal.

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