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Effects of Temperature on Pyrolysis Characteristics of Indonesia Oil Sands
Journal of Analytical and Applied Pyrolysis ( IF 6 ) Pub Date : 2019-01-01 , DOI: 10.1016/j.jaap.2018.11.021
Chuxia Jia , Yunpeng Xiao , Hao Yu , Shishang Gong , Qing Wang

Abstract In this work, pyrolysis experiments were conducted on Indonesia oil sands in a Cracking device at different pyrolysis temperatures. The effects of pyrolysis temperature on total hydrocarbon yield, liquid hydrocarbon production rate and gas production rate were investigated. Below 300 °C, the pyrolysis products were mainly gaseous. However, the proportions of liquid and gas products were identical above the temperature of 300 °C. The relationship between the volume fraction of gaseous products and temperature was analyzed using gas chromatography. The presence of functional groups of methyl, methylene, aldehyde, ketone, acid, fat, alkene and aromatic hydrocarbons in liquid pyrolysis products was investigated at different pyrolysis temperatures. The pore structure, electron microscope and fractal dimension of the chars were also analyzed. The result showed that the amount of adsorbed nitrogen reached the maximum value at 450 °C. The adsorption loop of char was close to the B-type loop, and the pore was mainly the slit hole. In addition, the pore structure was very well developed. The BET specific surface area and pore volume presented their peak values at 450 °C and the fractal dimension was obtained using FHH equation, which peaked at the temperature of 450 °C. The pore structure was loose and there was no obvious connection between the particles. Finally, the overall fractal value was slightly lower than the nitrogen adsorption fractal value.

中文翻译:

温度对印尼油砂热解特性的影响

摘要 在这项工作中,在裂解装置中对印度尼西亚油砂进行了不同热解温度的热解实验。研究了热解温度对总烃产率、液态烃产率和产气率的影响。低于 300 °C,热解产物主要为气态。然而,在 300 °C 以上的温度下,液体和气体产品的比例是相同的。使用气相色谱分析气态产物的体积分数与温度之间的关系。研究了不同热解温度下液体热解产物中甲基、亚甲基、醛、酮、酸、脂肪、烯烃和芳烃等官能团的存在情况。还分析了炭的孔隙结构、电子显微镜和分形维数。结果表明,吸附氮量在450℃时达到最大值。炭的吸附回路接近B型回路,孔隙主要为狭缝孔。此外,孔隙结构非常发达。BET 比表面积和孔体积在 450 °C 时出现峰值,使用 FHH 方程获得分形维数,在 450 °C 时达到峰值。孔隙结构松散,颗粒间无明显联系。最后,整体分形值略低于氮吸附分形值。孔隙结构非常发达。BET 比表面积和孔体积在 450 °C 时出现峰值,使用 FHH 方程获得分形维数,在 450 °C 时达到峰值。孔隙结构松散,颗粒间无明显联系。最后,整体分形值略低于氮吸附分形值。孔隙结构非常发达。BET 比表面积和孔体积在 450 °C 时出现峰值,使用 FHH 方程获得分形维数,在 450 °C 时达到峰值。孔隙结构松散,颗粒间无明显联系。最后,整体分形值略低于氮吸附分形值。
更新日期:2019-01-01
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