摘要
为实现煤液化残渣的资源化利用,采用神东煤与液化残渣进行共热解试验,研究了神东煤粒度、残渣粒度、残渣比例对热解产物分布及热解半焦强度的影响,建立了热解半焦强度测试方法。结果表明,共热解后焦油干基收率随着液化残渣加入量的增多而增大,液化残渣的加入对焦油的生成有正协同作用。〈1 mm液化残渣添加量由10%增加到30%,3~6 mm神东煤共热解半焦转鼓强度增大29.3%,易碎性F值降低22.8%;同样条件下,液化残渣添加量对3~6 mm神东煤共热解半焦转鼓强度的影响更大,〈1 mm的液化残渣添加量对神东煤共热解半焦易碎性F值影响更大,〈3 mm神东煤和〈1 mm的液化残渣共热解半焦转鼓强度小,易碎性F值高,因此热解过程原料煤应当设置粒度下限。
In order to make full use of direct coal liquefaction residue（ DCLR）,the co- pyrolysis experiments of Shendong coal and direct coal liquefaction residue were done.The influence of particle size of Shendong coal and DCLR,DCLR proportion on product distribution and semi-coke strength were investigated.A testing method for semi-coke strength was established. The results indicated that the dry basis of tar increased with the increase of DCLR proportion.The DCLR had synergistic effect on tar generation.When the dosage of DCLR below 1 mm increased from 10% to 30% and the particle size of Shendong coal ranged from 3 mm to 6 mm,the tumbler strength of co-pyrolysis semi-coke increased by 29.3%,the friability decreased by 22.8%.When the particle size of Shendong ranged from 3 mm to 6 mm,the addition of- 1 mm liquefaction residue had greater effect on tumbler strength and friability of semi- coke. When the particle size of Shendong coal was below 3 mm and direct coal liquefaction residue was below 1 mm,the tumbler strength was reduced and the friability was enhanced.
出处
《洁净煤技术》
CAS
2016年第4期121-125,共5页
Clean Coal Technology
基金
国家高技术研究发展计划(863计划)资助项目(2011AA05A202)
关键词
液化残渣
共热解
焦油收率
半焦强度
direct coal liquefaction residue
co-pyrolysis
tar yield
semi-coke strength
