新型炭材料2008，Vol.23Issue(2)：154-158,5.
石油油浆常压研制泡沫炭
Carbon foam produced from fluid catalytic cracking slurry at atmospheric pressure
杨小军 1查庆芳 1李宏男 1李学军 1程相林1
作者信息
- 1. 中国石油大学(华东)重质油国家重点实验室,山东,东营,257061
- 折叠
摘要
Abstract
Pitch-based carbon foam containing pores of diameter 150-400 um was produced from an intermediate pitch obtained from aromatic rich oil extracted from heavy oil FCC (fluid catalytic cracking) slurry by heating at atmospheric pressure. The effect of molecular weight distribution of the pitch on the formation of the foam was studied qualitatively. The variation of microscopic morphology, crystallite size, the interlayer spacing of microcrystal, and the density of the carbon foam carbonized from 800 to 1 400℃ were also investigated. It was found that the wider the molecular weight distribution of the intermediate material, the worse the foam. Optical microscopy and scanning electron microscopy revealed that with increasing carbonization temperature, closed pores were opened and more pores were in twisted form. X-ray diffraction patterns indicated that the graphite microcrystal size decreased from 2.3 to 1.5 nm and their interlayer spacing increased from 0.345 9 to 0.347 7 nm below 800℃. From 800 to 1400℃, the graphite microcrystal size in- creased from 1.5 to 4.2 nm and the interlayer spacing decreased from 0.347 7 to 0.345 4 nm. The density of the carbon foams decreased form 0.52 to 0.16 g/cm3 during the carbonization.关键词
催化裂化/油浆/泡沫炭/炭化/形态Key words
Catalytic cracking/Slurry/Carbon foam/Carbonization/Morphology分类
化学化工引用本文复制引用
杨小军,查庆芳,李宏男,李学军,程相林..石油油浆常压研制泡沫炭[J].新型炭材料,2008,23(2):154-158,5.
