利用固定床、流化床开展了核桃壳(BHTK)与油房梁煤(CYFL)的共热解研究。在固定床中考察了升温速率、掺混比对共热解的影响。结果表明:随着升温速率增加,失重速率增大,共热解呈现单独热解的简单加和趋势,共热解的协同效应不明显。在流化床中考察了温度、掺混比对产物分布和共热解油协同效应度的影响,结果表明:在压力0.1MPa,输送气15L/min,流化气25L/min,进料速率1.5kg/h,N2气氛条件下,BHTK质量掺混比30%时,600℃油收率18.75%,此时协同效应度达最大39.30%,协同效应显著,且共热解油品较煤焦油S质量分数由0.60%降至0.38%,C质量分数由82.00%降至72.28%,H/C比由0.095上升至0.099,油品品质提升明显;酚系物主要集中在3-甲酚(21.80%)、苯酚(16.43%)、2,4-二甲基苯酚(13.15%)、邻苯二酚(12.53%),萘系物主要集中在1-甲基萘(45.69%)、烷基萘(19.43%)、2,6-二甲基萘(10.75%),便于油品中精细化学品的提取。

The co-pyrolysis ofBHTK and CYFL was studied in fixed bed and fluidized bed. The effects of heating rate and mixing ratioon co-pyrolysis were investigated in fixed-bed experiment. The results shows that with the increase of heating rate, the weight loss rate in⁃creased, showing a simple addition trend of single pyrolysis, and the synergistic effect of co-pyrolysis is not obvious. The effects of tem⁃perature and mixing ratio on the product distribution and the synergistic effect of co-pyrolysis oil were investigated in the fluidized bed ex⁃periment.The results shows significant synergy that when the reaction pressure is 0.1 MPa, conveying gas 15 L/ min, flow gas 25 L/ min,feed rate 1.5 kg/ h and N2 atmosphere, the mixing ratio is 30%( BHTK weight ratio), the oil yield is 18.75% at 600 ℃ , and synergisticeffect has the maximum 39.30%.Compared with coal tar, the content of S decreased from 0.6% to 0.38%, the content of C decreased from82.00% to 72.28%, and the H/ C increases from 0.095 to 0.099. The quality of oil improves significantly, phenolic compounds are main⁃ly concentrated in 3-cresol (21.80%), phenol (16.43%), 2,4-dimethylphenol (13.15%), catechol (12.53%), and naphthalene com⁃pounds are mainly concentrated in 1 - methylnaphthalene ( 45. 69%), alkylnaphthalene ( 19. 43%), and 2, 6 - dimethylnaphthalene(10.75%) and other kinds of compounds for extraction using.

0 引言

1 试验

   1.1 原料与仪器

   1.2 固定床试验

   1.3 流化床试验

2 结果与讨论

   2.1 固定床热解试验

   2.2 流化床热解试验

   2.3 油品GC-MS分析

3 结论