摘要
在流化床装置上开展了淮北张双楼煤的预氧化降粘技术研究,考察了温度、气氛、停留时间对粘结指数的影响。结果表明,粘结指数随着温度的升高、停留时间的延长而降低;惰性气氛N2对降粘的效果差,空气气氛或者含空气气氛降粘效果明显。适宜的降粘条件为:温度200℃、停留时间30 min,气氛为空气及含空气气氛,流量3 L/min条件下,粘结指数可降至5以下,焦型由F型变为C型,由煤种弱粘煤变为不粘煤。通过对张双楼原煤(ZSLB)、张双楼降粘后(ZSLA)焦油产品的组成进行分析,得出ZSLB、ZSLA焦油主要包含萘系、烷烃、酚系、菲系、苯系、蒽系、芘系、芴系、茚系及其他物质,占比基本相似,萘系物含量最高;ZSLA焦油低馏分物质含量较多,同馏分占比对应的温度提前,更为轻质。
The study of pre-oxidation viscosity reduction technology of coal has been carried out on a fixed fluidized bed device.The effects of temperature,atmosphere,residence time on the bond index were investigated.The results showed that the bond index could be reduced to below 5 under the conditions of temperature 200℃,residence time 30 min,atmosphere air and air containing atmosphere,and the coke type has changed from F-type to C-type,and from weakly sticky coal to non sticky coal.By analyzing the composition of ZSLB and ZSLA tar products,it was found that tar of ZSLB and ZSLA mainly consists of naphthalene series,alkanes,phenols,phenanthrene series,benzene series,anthracene series,pyrene series,fluorene series,indene series,and other substances,with a similar proportion,with the highest content of naphthalene series;the content of low distillate substances in tar of ZSLB is higher,and the temperature corresponding to the same fraction is earlier,presents a lighter weight.
作者
刘巧霞
郝婷
兰伟伟
任烨
党昱
黄勇
LIU Qiao-xia;HAO Ting;LAN Wei-wei;REN Ye;DANG Yu;HUANG Yong(Hydrocarbon High-Efficiency Utilization Technology Research Center of Yanchang Petroleum(Group)Co.,Ltd.,Xi’an 710075,China)
出处
《应用化工》
CAS
CSCD
北大核心
2023年第9期2584-2588,共5页
Applied Chemical Industry
基金
陕西省重点研发计划项目(2023-YBGY-081)
延长石油集团科技项目(ycsy2022jcts-B-52)。
关键词
张双楼煤
降粘
热解
焦油组成
Zhangshuanglou coal
viscosity reduction
pyrolysis
tar composition
