摘要
用热重分析仪对兖州煤加氢液化残渣 (THF不溶物 )的工业分析进行了测定 ,重点考察了液化催化剂对其挥发分收率测定的影响。比较了相同液化条件下残渣的挥发分收率 ,发现催化液化残渣的总挥发分 (GB法测定的挥发分含量 )比热液化的高。通过对TG DTG谱图的分析 ,确定了失重峰的归属 ,同时定义 110℃～ 70 0℃间的挥发分V70 0 为有机挥发分 ,该值与这两种残渣的H C比遵循共同的线性关系 ,而与添加的液化催化剂无关 。
Volatile matters of residue produced in coal hydrogenation were measured by using TGA The effect of remaining hydrogenation catalysts on volatile matter measurement of residue was mainly concerned It was found that the total volatile matter measured in temperature region of 110?℃～950?℃, which was used normally for coal, was always higher for the residue from catalytic hydrogenation than that from thermal reactions By analyzing the shape of TG/DTG profiles, Fe 1 x S and NaCl, which were active hydrogenation catalyst and by product in the catalyst preparing process, would increase volatile matter (VM) yield due to their decomposition and evaporation, respectively Therefore, the value from proximate analysis (110?℃ to 950?℃)was defined as total volatile matter (TVM), and the volatile matter yield from 110?℃ to 700?℃ was organic volatile matter (OVM) It was also found that OVM yields of both thermal and catalytic residual chars have the same linear relationship with H/C ratio, while their TVM yields do not Clearly, the OVM mainly reflects the organic hydrocarbon materials in the chars and is not influenced by the enriched coal minerals, remained catalysts and by products in residual chars
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2001年第3期228-231,共4页
Journal of Fuel Chemistry and Technology
基金
国家杰出青年科学基金 (2 972 5 614 )&&
关键词
煤
液化残渣
有机挥发分
测定
残留催化剂
coal hydrogenation residue
volatile matter yield
remained hydrogenation catalyst
organic volatile matter
